Technical specification

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ground / optical ET033 Ed. 4 / 22.08.18
(OPGW) Units affected: General Directorate of Transport

STANDARD MANAGEMENT:

Responsibility: Approval: Control and dissemination:

Engineering and General Directorate of Audit Directorate

Construction Directorate Transport Internal and Risk Control

Firm: Firm: Signature and date: 12.11.20

INDEX

SUPPLY DESCRIPTION ............................................... .................................................. ..........3

CHARACTERISTICS OF THE NETWORK, CONSTRUCTION AND ENVIRONMENTAL .......................................... .......3

1. STANDARD DESIGN: CABLE WITH CENTRAL OPTICAL CORE AND ALUMINUM TUBE ........... 3
1.1 CONSTRUCTIVE FEATURES................................................ .................................3
1.2 ENVIRONMENTAL CHARACTERISTICS ................................................ ...................................... 6
1.3 TECHNICAL CHARACTERISTICS ................................................ ............................................. 7
2. SPECIAL DESIGNS .............................................. .................................................. ...............eleven
2.1 CORE WITHOUT CENTRAL OPTICAL CORE AND STEEL TUBES ......................................... eleven
2.2 OTHER DESIGNS ................................................ .................................................. ................ 12

TESTS AND TRIALS............................................... .................................................. .......................... 12

1. RECEPTION TESTS ............................................. .................................................. .......... 12
2. APPROVAL TESTS ............................................. .................................................. ..13

INFORMATION TO BE DELIVERED BY THE SUPPLIER ............................................ ....................... 13

TRANSPORTATION, PACKAGING AND STORAGE CONDITIONS ........................................... .... 14

QUALITY RECORDS ............................................... .................................................. .....................fifteen

1. QUALITY PLAN ............................................. .................................................. ........................fifteen
2. ACCESS TO THE FACILITIES ............................................ .................................................. .fifteen

GUARANTEE ................................................. .................................................. ......................................... 16

OTHER REQUIREMENTS................................................ .................................................. ............................ 16

ANNEX 1: APPLICABLE REGULATIONS ............................................. .................................................. .........1

ANNEX 2: MODELS .............................................. .................................................. ................................1

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ground / optical
(OPGW)

APPENDIX 3: RECEPTION TESTS FOR COMPOSITE GROUND / OPTICAL CABLES (OPGW) ...... 1
1. TEST TABLE ............................................. .................................................. ......................1
1.1 TABLE 1: Tests on optical fibers .......................................... .....................................two
1.2 TABLE 2: Tests on the optical core .......................................... ......................................3
1.3 TABLE 3: Tests on the aluminum tube ......................................... ..................................4
1.4 TABLE 4: Tests on aluminum coated steel wires ....................................... .4
1.5 TABLE 5: Tests on alloy wires. .................................................. ....................5
1.6 TABLE 6: Tests on the complete cable. .................................................. ..........................5
2. DESCRIPTION OF TESTS ............................................ .................................................. ..7
R-OPG.1. Tests on optical fibers ............................................. ....................................... 7
R-OPG. 2. Tests on the optical nucleus ............................................. ....................................... 10
R-OPG.3. Tests on the aluminum tube ............................................ ................................... 12
R-OPG. 4. Tests on aluminum-coated steel wires .................................... 14
R-OPG.5. Tests on alloy wires ............................................ ......................... 14
R-OPG.6. Tests on the complete cable ............................................. .................................... 14
3. SAMPLING ............................................... .................................................. ................................. 18
4. ACCEPTANCE AND REJECTION CRITERIA ........................................... ..................................... 18

APPENDIX 4: TYPE TESTS FOR APPROVAL OF COMPOSITE EARTH / OPTICAL CABLES

(OPGW) .................................. .................................................. .................................................. ...............1
1. TEST TABLE ............................................. .................................................. ......................1
2. DESCRIPTION OF THE TYPICAL TESTS ........................................... ............................................3
T-OPG.1. Vibration test ............................................... .................................................. ..3
T-OPG. 2. Short circuit test ............................................... .................................................. .4
T-OPG. 3. Lightning test ............................................... .................................................. ............. 7
T-OPG. 4. Torsion test ............................................... .................................................. ......... 8
T-OPG. 5. Load-elongation-attenuation test ........................................... ......................... 9
T-OPG. 6. Thermal cycle test .............................................. ................................................. 13
T-OPG. 7. Pulley pass test ............................................. ...............................................fifteen
T-OPG. 8. Corrosion test ............................................... .................................................. .... 16
T-OPG.9. Drip test of filling components .......................................... ............... 17
3. ACCEPTANCE AND REJECTION CRITERIA ........................................... ..................................... 18

ANNEX 5: HISTORY OF MODIFICATIONS ............................................ ............................................1

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ground / optical
(OPGW)

SUPPLY DESCRIPTION

Composite earth / optical cable (OPGW) is installed in power transmission lines instead of the earth
cable, thus performing the functions of an earth cable on the one hand and a transmission medium to
establish telecommunications links on the other.

This specification applies to composite earth / optical cables with a short-circuit current of 17 kA (called
Type 1) and a short-circuit current of 25 kA (called Type 2) that are installed in the high voltage lines
owned by Red Eléctrica de 400 kV, 220 kV, 132 kV and 66 kV.

CHARACTERISTICS OF THE NETWORK, CONSTRUCTION AND ENVIRONMENTAL

Two types of construction design are supported for these cables:

1) Standard design, with central optical core and aluminum tube.
2) Special designs subject to specific needs of Red Eléctrica.

1. STANDARD DESIGN: CABLE WITH CENTRAL OPTICAL CORE AND ALUMINUM TUBE

1.1 CONSTRUCTION CHARACTERISTICS

1.1.1 General characteristics

The earth / optical composite cable is made up of a central optical core consisting of a watertight
aluminum tube, inside which the optical fibers are loosely housed in protective plastic tubes.

The fiber accommodation space is filled with an anti-humidity

component that will comply with current regulations (see
annex 1) in terms of density, viscosity and cone penetration.
The optical core will be protected with a hydrogen absorbing
component.

One or two layers of aluminum-coated steel wires or aluminum

alloy wires are wired onto the aluminum tube. The outer shell
is hardwired.
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ground / optical
(OPGW)

1.1.2 Arrangement of tubes and fibers

Red Eléctrica will indicate which of the following structures is admitted at the time of carrying out the
homologation or purchase:

Fibers Fibers FIRST OPTION SECOND OPTION

Type of cable
G.652D G.655 No. TUBES No. FIBERS / TUBE No. TUBES No. FIBERS / TUBE

12 12 0 two 6 4 3

24 24 0 two 12 4 6

48 48 0 4 12

96 96 0 4 24

42 + 6 48 6 4 12

84 + 12 84 12 4 24

144 144 0 6 24

Table 1 Arrangement of tubes and fibers

In mixed cables, the G.655 fibers will be placed last according to the corresponding color code.

1.1.3 Color code

The Spanish alphabetic code will be followed in the order of the tubes and the fibers within each tube.
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ground / optical
(OPGW)

1.1.3.1 Tube color code

To identify the tubes, the letters will always be capitalized. If the cable has four active tubes (for example,
48 and 96 fiber optic cables), they will be identified by the following code
colors:

COLOR TUBES CODE

1 BLUE AZ

two WHITE BL

3 RED RO

4 GREEN GO

Table 2 Color code for cables with 4 tubes

In the event that the cables have six active tubes (144 fiber optic cable), the code to follow will be as
follows:

TUBES COLOUR CODE

1 YELLOW AM

two BLUE AZ

3 WHITE BL

4 RED RO

5 GREEN GO

6 PURPLE SAW

Table 3 Color code for cables with 6 tubes

1.1.3.2 Fiber color code

To recognize the fibers within each tube, the following code will be followed, writing the letters that
identify the fibers in lowercase:
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ground / optical
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FIBERS COLOR CODE RINGS FIBERS COLOR CODE RINGS

1 yellow A.M NOT 13 yellow am-1a 1

two blue az NOT 14 White bl-1a 1

3 White bl NOT fifteen Orange na-1a 1

4 Gray gr NOT 16 Red rj-1a 1

5 Brown ma NOT 17 rose ro-1a 1

6 Orange na NOT 18 turquoise you-1a 1

7 black ne NOT 19 yellow am-2a two

8 Red ro NOT twenty White bl-2a two

9 rose ro NOT twenty-one Orange na-2a two

10 turquoise you NOT 22 Red rj-2a two

eleven green go NOT 2. 3 rose ro-2a two

12 purple saw NOT 24 turquoise your-2a two

Table 4 Fiber color code

  RINGS:

- When the tube has more than 12 fibers, fibers 13 to 18 will be marked with a black ring
every 50 mm according to the color code established in table 3.

- When the tube has more than 18 fibers, fibers 19 to 24 will be marked with 2 black rings
every 50 mm according to the color code established in table 3.

1.2 ENVIRONMENTAL CHARACTERISTICS

Type 1 Cable (17kA Icc) Type 2 Cable (25kA Icc)

Installation OUTDOOR OUTDOOR

Temperature Minimum Maximum Minimum Maximum

(Rank habitual from

- 30 ° C + 70 ° C - 30 ° C + 70 ° C
functioning)
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ground / optical
(OPGW)

1.3 TECHNICAL CHARACTERISTICS

1.3.1 Mechanical conductor calculations

The cables proposed for approval, in addition to complying with the technical characteristics specified in
this section, must satisfactorily pass the mechanical calculations of the cable,
common in Red Eléctrica.

1.3.2 Wire rope

1.3.2.1 Mechanical characteristics

Type 1 Cable (17kA Icc) Type 2 Cable (25kA Icc)

Nominal diameter Cable up to 48 FO: 15.1mm - 15.74mm 17.1mm - 17.54mm

96 FO Cable: 15.75mm - 16.4mm 17.55mm - 18.05mm

144 FO Cable: 17.1mm - 17.54mm 17.55mm - 18.05mm

Section of the metal part 100 mmtwo - 142 mmtwo 150 mmtwo - 170 mmtwo

Weight ≤ 0.81 kg / m ≤ 0.9 kg / m

Rated breaking load1 > 9,500 kg > 9,500 kg

Static bend radiustwo <350 mm <350 mm

Wiring (or helix) pitch 10-14 10-14

Outer shell wiring direction Right Right

1 The minimum acceptable value for the breaking load of the cable will be that which satisfies the calculations of the sag of the cable, never being less than that indicated
here. The technical data sheet associated with the cable must identify its nominal value (and tolerances) in order to be able to carry out the aforementioned calculations.

two The minimum radii of curvature associated with the installation are not specified, which will be defined in the technical sheet and in the
manufacturer's installation procedure.
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ground / optical
(OPGW)

1.3.2.2 Electrical characteristics

Type 1 Cable (17kA Icc) Type 2 Cable (25kA Icc)

Resistance per unit length in direct current <0.6 Ω / km <0.6 Ω / km

at 20ºC

Fault current3 that the cable must 17 kA 25 kA

withstand (short circuit)

Weathertwo (short circuit) 0.3 s 0.3 s

Itwo t (short circuit) > 86.7 (kA)twoS > 187.5 (kA)twoS

Maximum tolerable temperature for fibers

180 ° C 180 ° C
and their coatings

Short-circuit conditions will not cause alterations in the transmission characteristics of the optical fibers.

1.3.3 Metallic threads for armor

Type 1 Cable (17kA Icc) Type 2 Cable (25kA Icc)

Material (2 options) 1.- Extrusion Aluminum Coated Steel 1.- Extrusion Aluminum Coated Steel

or by compression (or cladding) according to or by compression (or cladding) according to

current regulations (see annex 1) current regulations (see annex 1)

two.- Aluminium alloy two.- Aluminium alloy

Wire diameter > 2.7 mm > 2.7 mm

3 The corresponding short-circuit test will be carried out with a fault current of at least 17 kA or 25 kA depending on the type of cable with a
minimum duration of 0.3s.
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ground / optical
(OPGW)

1.3.4 Optical core protection tube

Type 1 Cable (17kA Icc) Type 2 Cable (25kA Icc)

Material Aluminum Aluminum

Building Watertight Watertight

Thickness > 1 mm > 1 mm

Anti-humidity padding Yes Yes

Hydrogen absorbing component Yes Yes

1.3.5 Optical fibers

The integrity of the coating (acrylate, color ...) will not be altered within the operating ranges
of the cable and throughout its useful life.

The ITU-T recommendations indicated in this document will be complied with except for those parameters specified

below.

1.3.5.1 Geometric and optical characteristics of G.652D singlemode fiber

Type 1 Cable (17kA Icc) Type 2 Cable (25kA Icc)

ITU-T recommendation G.652 D G.652 D

Cutting Wavelength ≤1260 nm ≤1260 nm

Tension test (Proof Test) > 0.69 GPa (equivalent> 1%) > 0.69 GPa (equivalent> 1%)

Modal field diameter 8.6 -9.5 µm +/- 0.6 µm (1300nm) 8.6 -9.5 µm +/- 0.6 µm (1300nm)

(According to ITU-T G.652D) (According to ITU-T G.652D)

Core / cladding concentricity error <= 0.6 µm (According to ITU-T G.652D) <= 0.6 µm (According to ITU-T G.652D)
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ground / optical
(OPGW)

1.3.5.2 Geometric and optical characteristics of G.655 single-mode fiber

Type 1 Cable (17kA Icc) Type 2 Cable (25kA Icc)

ITU-T recommendation G.655 G.655

Tension test (Proof Test) > 0.69 GPa (equivalent> 1%) > 0.69 GPa (equivalent> 1%)

1.3.5.3 Transmission characteristics f G.652D fibers

Type 1 Cable (17kA Icc) Type 2 Cable (25kA Icc)

Attenuation at 1310 nm <0.35 dB / km <0.35 dB / km

Attenuation at 1550 nm <0.22 dB / km <0.22 dB / km

Chromatic dispersion for 1310 nm ≤ 3 ps / (nm km) ≤ 3 ps / (nm km)

Chromatic dispersion at 1550 nm <18 ps / (nmkm) <18 ps / (nmkm)

PMD (fibers) <0.2 ps / √km <0.2 ps / √km

1.3.5.4 Transmission characteristics f ibras G.655

Type 1 Cable (17kA Icc) Type 2 Cable (25kA Icc)

Attenuation at 1550 nm <0.25 dB <0.25 dB

Attenuation at 1625 nm <0.27 dB <0.27 dB

Chromatic dispersion at 1550 nm <8 ps / (nm km) <8 ps / (nm km)

PMD (fibers) <0.2 ps / √km <0.2 ps / √km

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ground / optical
(OPGW)

2. SPECIAL DESIGNS

In order to solve specific needs, Red Eléctrica may request cables with a design different from the
standard one.

2.1 CABLE WITHOUT CENTRAL OPTICAL CORE AND STEEL TUBES

2.1.1 General characteristics

The optical fibers are loosely housed in steel tubes covered with aluminum or an aluminum alloy, in such
a way that there is no galvanic bridge between it and the different wires that make up the cable. The
layers of wires that make up the cable can be made of aluminum coated steel, aluminum alloy or a
mixture of both. On the layer that includes the steel tubes that contain the fibers, one or two layers of
wires are wired in such a way that the outer layer is wired to the right.

The number of optical fibers housed in each steel tube will never exceed 48.

2.1.2 Color code

Red Eléctrica will indicate the color code to be used in each case.

2.1.3 Construction, environmental and technical characteristics

The cable shall comply, as far as possible, with the constructive, environmental and technical characteristics of the
standard cable. Red Eléctrica will define the particular characteristics in each case.

The steel tubes that contain the optical fibers, a peculiarity of this design, will comply with the
following characteristics:

Steel tubes Type / Value

Material Stainless steel protected with an aluminum coating

Building Soldier
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ground / optical
(OPGW)

2.2 OTHER DESIGNS

Red Eléctrica may establish the parameters of other additional designs if its needs so determine.

TESTS AND TRIALS

The reception and approval tests to be carried out for composite optical / earth cables (OPGW) are
indicated below.

Due to exceptional circumstances, if considered by Red Eléctrica and in mutual agreement with the
manufacturer, additional tests not included in the following points may be carried out.

All tests will be carried out in the supplier's laboratory and, if necessary, in accredited external
laboratories. The tests will be allowed to be carried out in the supplier's laboratory provided that the
laboratory has the necessary equipment and measuring instruments to carry out the required tests.

It is necessary that the equipment and measuring instruments used are suitably calibrated on the date
of the tests. For this reason, Red Eléctrica will require your current calibration certificates.

1. RECEPTION TESTS

The reception tests of composite optical / earth cables (OPGW) are mainly divided into tests on optical
fibers, the optical core, the aluminum or steel tube according to design, the wires or on the complete
cable.

Annex 3 describes each of the tests, their sampling criteria and the acceptance and rejection criteria.
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ground / optical
(OPGW)

2. APPROVAL TESTS

The set of homologation tests for optical / earth composite cables (OPGW) to be carried out are made up
of the following subsets

Illustration 1: Set of homologation tests

  Type tests. Red Eléctrica will indicate whether all type tests or a selection should be carried out.

  All the tests of reception of composite earth / optical cables (OPGW) according to the
corresponding section of this document.

  Due to exceptional circumstances, if considered by Red Eléctrica and in mutual agreement with the
manufacturer, additional tests not included in the previous points may be carried out.

The manufacturer will manufacture the necessary prototype coils with the length considered appropriate in each
case to be able to carry out the established tests.

Annex 4 describes each of the type tests, their sampling criteria and the acceptance and rejection criteria.

INFORMATION TO BE DELIVERED BY THE SUPPLIER

The provider will deliver the following to Red Eléctrica:

  For homologation:

- Cable technical data sheet including all the parameters described in this technical
specification (according to the models indicated in annex 2).

- Installation manuals.
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ground / optical
(OPGW)

  After homologation and / or acceptance tests:

- The protocols of tests, measurements and trials contemplated in the respective standards for
the approval and reception of cables (see annexes).

- Model "Factory Acceptance Tests for OPGW cables" (according to the model indicated in annex
two).

- Model "Acceptance of fiber optic spools" (according to the model indicated in annex 2).

TRANSPORTATION, PACKAGING AND STORAGE CONDITIONS

Regarding transport, packaging and storage, the equipment supplied must comply with the provisions
of the "GENERAL CONTRACTING CONDITIONS FOR EQUIPMENT AND MATERIALS" of RED ELÉCTRICA DE
ESPAÑA (see annex 1 "Applicable regulations").

In addition, it will comply with the following particular conditions:

  The cable winding will be carried out in reels with a suitable drum diameter and according to current
regulations.
  The coils will be made of wood.

  The rigidity and robustness of the coil will prevent the wings from opening during the installation
process.
  The coils will be loaded and unloaded by means of a suitable crane for their weight.
  It will be verified that the 2 ends of the cable are accessible and that they are firmly secured with
clamps, so that accidental unwinding does not occur, and effectively protected against the entry
of water and foreign bodies.
  Long-term storage, more than 1 month, of the coils will be carried out protected from inclement
weather, in particular humidity.
  The bobbin will be marked with the unwinding direction.
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ground / optical
(OPGW)

  Each coil will have an outdoor identification plate on the outside with the inscription Red Eléctrica de
España and the following information:

RED ELÉCTRICA DE ESPAÑA

Maker:
Type of cable:
Cable length:
Order number:
Reel No. / Reel No.:
Manufacturing date:
Unwinding direction:

QUALITY RECORDS

The materials that are the object of this specification will be subject at least to a Certified Quality System
in accordance with the ISO-9001 standard.
The quality certificates and approvals required by the applicable codes and standards will be provided,
as well as those included in the current legislation.

1. QUALITY PLAN

The supplier must have a Quality Plan where the manufacturing phases and the inspection points to be
controlled with the approved internal standard or procedure must be collected, correlatively from the
receipt of materials to the destination of the order. The Quality Plan or Inspection Points Program must
be available at the request of REE, which may expand it or set waiting points if it deems it appropriate.

2. ACCESS TO THE FACILITIES

REE or its representatives will have free access to the facilities, both of the supplier and its suppliers or
subcontractors, to inspect or audit everything related to the order. Likewise, you will be able to have all
the technical and quality documentation in order to be able to verify it.
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GUARANTEE

Regarding To guarantees, the equipment supplied must comply with the provisions of the "GENERAL
CONTRACTING CONDITIONS FOR EQUIPMENT AND MATERIALS" of RED ELÉCTRICA DE ESPAÑA.

The supplier will guarantee the existence of spare parts for a minimum of 10 years after delivery.

The cable is guaranteed against any manufacturing defect for 10 years after delivery or one year after
commissioning.

OTHER REQUIREMENTS

The lengths of the cables may be made to measure or standardized, as indicated by Red Eléctrica:
  Custom lengths: For custom coils, the lengths to be supplied will be determined by Red Eléctrica
based on the proposal of the profile of the line in question, taking into account the drops in
supports with splices and substation gantries. Once the coil lengths have been set, they may not
vary by more than + 1%
  Standard lengths: The standard lengths are 3000 m, 3800 m, 4500 m, 5000 m and 5500 m. These
lengths may not vary by more than + 1%.
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applicable ET033 Ed. 4 / 22.08.18

ANNEX 1: APPLICABLE REGULATIONS

Standard code Title of the standard Observations

GC01 Adquisition of goods and services

GC02 Logistics Management

Red Eléctrica Technical Specification.

The cable will comply with this standard

ET003
Supply of ground conductors and cables especially in relation to:

  The metallic wires of steel covered with

aluminum by compression.

ET083 Packaging, marking and shipping procedure for REE technical specification.
equipment and materials

ITU-T G.652 Characteristics of optical fibers and cables Recommendation of the International
Telecommunication Union.
single mode

ITU-T G.655 Characteristics of a fiber optic cable Recommendation of the International

Telecommunication Union.
singlemode with non-zero displaced dispersion

Set of 8 standards on different optical fiber

IEC 60793-1-
Optical Fibers - Measurement methods and test measurement procedures of the International
(20/21/40/42/44/45/48) procedures. Electronic Commission (IEC - CEI).

UNE 21044: 1974 Sampling plans and acceptance and rejection criteria Spanish standard.
Table III in the reception of bare cables for conductors of
overhead power lines

Common test methods for insulation and jacket Spanish and European standard.
UNE-EN 60811-1- materials for electrical cables and fiber optic cables.
1: 1996 Part 1-1: General application. Measurement of
thicknesses and external dimensions. Determination
of mechanical properties.
UNE-EN 61232: 1996 * Spanish and European standard.
Aluminum Coated Steel Wires for Electrical Use

UNE-EN 50183: 2000 Conductors for overhead power lines. Aluminum- Spanish and European standard.
magnesium-silicon alloy wires.

Spanish and European standard.

Conductors for overhead power lines. Round wire The cable will comply with this standard
UNE-EN 50182: 2002 *
conductors stranded in concentric layers. especially in relation to:

  The metallic wires of steel covered with

aluminum.

UNE 21045: 1974 Wooden spools intended for bare cables for Spanish standard.
overhead line conductors
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applicable ET033 Ed. 4 / 22.08.18

IEEE Standard for Testing and Performance for Optical Ground Wire (OPGW) Institute
IEEE 1138: 2009
Testing Standards for Use on Electric
Electrical and Electronic Engineers (IEEE).
Utility Power Lines

Testing regulations of the International

Electronic Commission (IEC - CEI).

IEC 60794 The cable will comply with this standard

Optical fiber cables especially in relation to:

Density and viscosity of the anti-

humidity compound
Iso 9001
Quality management systems - Requirements International standard.
* The extensions, corrigendums and erratums in force on the date of publication of this Technical Instruction apply.
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ANNEX 2: MODELS

List of forms or models necessary for the development of this process or activity:

CODE NAME RESPONSIBLE ORGANIZATIONAL UNIT

T378 Data Sheet OPGW type 1 Telecommunications Department

T379 Data Sheet OPGW type 2 Telecommunications Department

Factory Acceptance Testing OPGW Cables

T380 Telecommunications Department

T381 Acceptance Certificate for Fiber Optic Coils Telecommunications Department

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cables
compounds
ground / optical
(OPGW)

APPENDIX 3: RECEPTION TESTS FOR COMPOSITE GROUND / OPTICAL CABLES (OPGW)

This annex defines a set of tests that apply to the reception of composite optical / ground cables (OPGW),
its sampling criteria and the acceptance and rejection criteria.

1. TEST TABLE

R-OPG.1. Tests on optical fibers

R-OPG.1.1. Attenuation by reflectometry R-OPG.1.2.

Diameter of the modal field * R-OPG.1.3. Diameter of the

first coating * R-OPG.1.4. Core / cladding concentricity

error * R-OPG.1.5. Cut-off wavelength *

R-OPG.1.6. Chromatic dispersion *

R-OPG.1.7. PMD value *

R-OPG.1.8. Proof Test *

R-OPG. 2. Tests on the optical nucleus

R-OPG.2.1. Structure of the optical core R-OPG.2.2.

Diameters and thickness of plastic tubes R-OPG.2.3.

Central element diameter measurement

R-OPG.3. Tests on the aluminum tube (or steel, according to design)

R-OPG.3.1. Diameters and

thickness R-OPG.3.2. Tightness

R.OPG 4. Tests on aluminum-coated steel wires

R-OPG.4.1. Diameter

R-OPG.4.2. Uniformity and thickness of R-OPG

aluminum.4.3. 1% elongation and break load. R-

OPG.4.4. Electric resistance

R-OPG.4.5. Torsion
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R.OPG 5. Tests on alloy wires

R-OPG.5.1. Diameter

R-OPG.5.2. 1% elongation and break load. R-

OPG.5.3. Electric resistance

R.OPG 6. Tests on the complete cable

R-OPG.6.1. Exterior appearance

R-OPG.6.2. R-OPG cable structure

6.3. Diameter

R-OPG.6.4. Weight per unit of length R-

OPG.6.5. Electrical resistance R-OPG.6.6.

R-OPG wiring (or helix) pitch 6.7. Cable

breaking load * R-OPG.6.8. Thermal cycle*

R-OPG.6.9. Load / Elongation / Attenuation *

1.1 TABLE 1: Tests on optical fibers

FO METHOD /
KIND TEST SAMPLING ACCEPTANCE REQUIREMENTS
RULE
Selection of
R-OPG.1. For all tests in the table:
coils according to:
Essays on the fibers   See description of the R-OPG.1 test in
UNE 21044: 1974
optical     section 2.
Table III

MM - II
  ITU-T G.651 / G.652 / G.655 as applicable.
R-OPG.1.1. Attenuation SM - II
IEC 60793-1-40 100% FO   REE ET in force.
by reflectometry SM - III
Optical fibers
Reception

  Manufacturer Specifications
NZD - III
SM - II   ITU-T G.652 / G.655 as applicable.
R-OPG.1.2. Diameter of the Min. 25% FO of
SM - III IEC 60793-1-45   REE ET in force.
modal field * each tube **
NZD - III   Manufacturer Specifications

  ITU-T G.651 / G.652 / G.655 as applicable.

MM
R-OPG.1.3. First coating Min. 25% FOde   REE ET in force.
YE IEC 60793-1-20
diameter * each tube **   Manufacturer Specifications
NZD
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R-OPG.1.4. Error from MM   ITU-T G.651 / G.652 / G.655 as applicable.

Min. 25% FOde
concentricity YE IEC 60793-1-20   REE ET in force.
each tube **
core / cladding * NZD   Manufacturer Specifications

  ITU-T G.652 / G.655 as applicable.

R-OPG.1.5. Lenght of YE Min. 25% FOde
IEC 60793-1-44   REE ET in force.
shear wave * NZD each tube **
  Manufacturer Specifications

SM - II   ITU-T G.652 / G.655 as applicable.

R-OPG.1.6. Dispersion Min. 25% FOde
SM - III IEC 60793-1-42   REE ET in force.
chromatic * each tube **
NZD - III   Manufacturer Specifications

  ITU-T G.652 / G.655 as applicable

YE Min. 25% FOde
R-OPG.1.7. PMD value * IEC 60793-1-48   ET of REE in force.
NZD each tube **
  Manufacturer Specifications

  ITU-T G.652 / G.655 as applicable.

YE Min. 25% FOde
R-OPG.1.8. Proof Test * IEC 60793-1-30   REE ET in force.
NZD each tube **
  Manufacturer Specifications

Legend: MM: Multimode G.651 | SM: Standard singlemode G.652 | NZD: Singlemode with non-zero displaced dispersion G.655
II: 2nd window, 1310nm | III: 3rd window, 1550 nm

* At REE's discretion, the marked tests may be substituted for certificates. More information in the description of the T-OPG-1 test in section. two.
* * The final sampling will be established by REE. See also acceptance and rejection criteria in the description of the T-OPG-1 trial of the
aptdo. two.

Table 1. Reception tests for composite ground / optical cables. Tests on optical fibers

1.2 TABLE 2: Tests on the optical core

KIND TEST METHOD / STANDARD SAMPLING ACCEPTANCE REQUIREMENTS

Coil selection
R-OPG. 2. For all tests in the table:
according:
Tests on the optical nucleus
UNE 21044: 1974 Table   See description of the R-
 
III OPG.2 test in section 2.

  According to technical
R-OPG.2.1. Structure of the 100% samples of
Visual inspection characteristics (ET of REE in force
Optical Core

selected coils
Reception

optical nucleus
+ manufacturer specifications)

UNE-EN 60811-1-1: 1996 + See 100% plastic tubes

R-OPG.2.2. Diameters and
description of the of the coils   Nominal ± 10%
thickness plastic tubes
corresponding test (section 2) selected

R-OPG.2.3. Measure of
To be agreed between REE and
diameter of element 100% samples   Nominal ± 10%
maker.
central

Table 5: Reception tests for composite earth / optical cables. Tests on the optical nucleus.
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1.3 TABLE 3: Tests on the aluminum tube

If the design is with steel tube (see in this ET section 'Characteristics of the network, constructive and

environmental ') will also apply these tests.

KIND TEST METHOD / STANDARD SAMPLING ACCEPTANCE REQUIREMENTS

R-OPG.3.
Coil selection For all tests in the table:
Tests on the aluminum tube
Aluminum tube (or steel, according to design)

according:
(or steel, according to design)   See description of the ROPG.3
  UNE 21044: 1974 Table III
test in section 2.

R-OPG.3.1. Diameters and See description of the 100% samples of the   UNE 21044: 1974. Section 6.2.
Reception

thickness corresponding test (section 2). selected coils   Nominal ± 1%

See essay description

corresponding (section 2).   UNE 21044: 1974. Section 6.2.

R-OPG.3.2. Tightness Red Eléctrica will choose which 1 test per batch   No pressure drop will be
of the proposed methods observed on the gauge.
will be the one that is carried out.

Table 6: Reception tests for composite earth / optical cables. Tests on aluminum tube (or steel, depending on design)

1.4 TABLE 4: Tests on aluminum-coated steel wires

KIND TEST METHOD / STANDARD SAMPLING ACCEPTANCE REQUIREMENTS

R.OPG 4. Coil selection

Tests on the wires of according:
 
aluminum coated steel UNE 21044: 1974 Table III

R-OPG.4.1. Diameter UNE-EN 61232: 1996 100% wires

Aluminum Coated Steel Wires

R-OPG.4.2. Uniformity Y 100% wires   According to UNE-EN regulations

UNE-EN 61232: 1996
Reception

61232: 1996.
aluminum thickness Min. 10 measurements

  Splices will not be allowed on

R-OPG.4.3. 1% load from
UNE-EN 61232: 1996 100% wires any wire.
elongation and breakage.

R-OPG.4.4. Endurance
UNE-EN 61232: 1996 100% wires
electric

R-OPG.4.5. Torsion UNE-EN 61232: 1996 100% wires

Table 7: Reception tests for composite earth / optical cables. Tests on aluminum coated steel wires.
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1.5 TABLE 5: Tests on alloy wires.

KIND TEST METHOD / STANDARD SAMPLING ACCEPTANCE REQUIREMENTS

R.OPG 5. Coil selection

Tests on the wires of according:
 
alloy UNE 21044: 1974 Table III
  According to UNE-EN regulations
R-OPG.5.1. Diameter UNE-EN 50183: 2000 100% wires
Reception

50183: 2000.
Alloy wires

R-OPG.5.2. 1% elongation and Splices will not be allowed on

UNE-EN 50183: 2000 100% wires  
break load. any wire.

R-OPG.5.3. Endurance
UNE-EN 50183: 2000 100% wires
electric

Table 8: Reception tests for composite earth / optical cables. Tests on alloy wires.

1.6 TABLE 6: Tests on the complete cable.

KIND TEST METHOD / STANDARD SAMPLING ACCEPTANCE REQUIREMENTS

R.OPG 6. Coil selection For all tests in the table:

Tests on the complete according:

  See description of the ROPG.6
 
cable UNE 21044: 1974 Table III test in section 2.

R-OPG.6.1. Appearance   UNE-EN 50182: 2002. Section 5.3.

Visual inspection 100% coils from the batch
Exterior   UNE 21044: 1974. Section 6.2.

R-OPG.6.2. 100% samples of the   REE ET in force.

Visual inspection
Cable structure selected coils   Manufacturer's specification.
Complete cable

See description of the 100% samples of

Reception

R-OPG.6.3. Diameter   UNE 21044: 1974. Section 6.2.

corresponding test (section 2). selected coils

R-OPG.6.4. Weight per See description of the 100% samples of

  UNE 21044: 1974. Section 6.2.
length unit corresponding test (section 2). selected coils

R-OPG.6.5. See description of the 100% samples of

  Manufacturer specification
Electric resistance corresponding test (section 2). selected coils

R-OPG.6.6. Step of UNE-EN 50182: 2002. 100% samples of the   UNE-EN 50182: 2002. Section 5.5.

wiring (or helix) Section 6.4.4. selected coils   UNE 21044: 1974. Section 6.2.

R-OPG.6.7. Load of See description of the   See description of the

1 sample per lot
cable break * corresponding test (section 2). ROPG.6.7 test in section 2.
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R-OPG.6.8. Cycle Annex 4.   According to Annex 4.

1 sample per lot
thermal* T-OPG.6 test T-OPG.6 test

R-OPG.6.9.
Annex 4.   According to Annex 4.
Load / Elongation / A 1 sample per lot
T-OPG.5 test T-OPG.5 test
tenuation *

* The tests marked with an asterisk are optional at the discretion of Red Eléctrica.

Table 9: Reception tests for composite earth / optical cables. Tests on the complete cable.
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2. DESCRIPTION OF THE TESTS

R-OPG.1. Tests on optical fibers

  General aspects of all trials:

- All the tests established in table 1 will be carried out on a selection of coils resulting from
applying the sampling standard that appears in the same table.

- Always at the discretion of Red Eléctrica, if so considered, the tests marked with an asterisk
"*" (R-OPG.1.2., R-OPG.1.3., R-OPG.1.4., R-OPG.1.5., R-OPG.1.6., R-OPG.1.7. Y ROPG.1.8.) they
can be substituted by certificates from the fiber manufacturer. In this case, the certificates
will cover 100% of the fibers of the reels tested.

  R-OPG.1.1 test. - Attenuation by reflectometry.

- Process:

  According to table 1.

  The measurements will be carried out in the following work windows:

λ = 850 nm λ = 1310 nm λ = 1550 nm

Multimode FO X X

Single mode FO X X
Table 10 Work Windows for reflectometry

- Criteria for acceptance and rejection:

The entire coil will be rejected where:

  A fiber has an attenuation per unit length greater than that specified by Red
Eléctrica, for either of the two measured wavelengths.
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  A fiber has an appreciable discontinuity in any section of the trace.

  A fiber present, in any section of the trace, a visible discontinuity in attenuation per
unit length

A failure in an optical fiber will imply the rejection of the coil to which it belongs. For the
rejection of a batch, use will be made of the column "rejected" of Table III (Standard UNE
21044-74). The manufacturer, in the case of rejection of a lot, will have the option to test
each coil and present to a new reception those that have met the requirements for
acceptance.

  Tests R-OPG.1.2., R-OPG.1.3., R-OPG.1.4., R-OPG.1.5 and R-OPG.1.6 .:

- Process:

  According to table 1.

- Criteria for acceptance and rejection:

  If any of the tests on any of the fibers gave an out-of-specification result, the coil
would be rejected and the sampling level of the rest of the samples would be
increased to 100% of the fibers (or the percentage indicated by Red Eléctrica).

  In the event that new non-conformities appear, the entire batch will be rejected,
with the manufacturer having the option to test each coil and submit to a new
reception those that have met the established requirements.

  R-OPG Assay.1.7. - PMD:

- Process: According to table 1.

- Criteria for acceptance and rejection:

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  The PMD value will be less than or equal to that indicated in this TS (section 'Network,
construction and environmental characteristics') or the value indicated in the manufacturer's
technical specification if this is more restrictive.

  If the value is greater than the most restrictive value between the two specifications, the coil
will be rejected and the test will be increased to 100% of the fibers (or the percentage
indicated by Red Eléctrica) from two other coils in the batch.

  In the event that new non-conformities appear, the entire batch will be rejected,
with the manufacturer having the option to test each coil and submit to a new
reception those that have met the established requirements.

  R-OPG test.1.8. - Proof Test:

- Process:

  According to table 1.

- Criteria for acceptance and rejection:

  If the value of proof test of the fibers is less than that indicated in this TS (section
'Characteristics of the network, construction and environmental'), the entire batch will
be rejected.
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R-OPG. 2. Tests on the optical nucleus

  General aspects of all trials:

- All the tests established in table 2 will be carried out on a selection of coils resulting from
applying the sampling standard that appears in the same table.

  R-OPG.2.1 test. - Structure of the optical nucleus:

- Process:

  Visual inspection: It will be verified that the optical core is in accordance with this TS
(section 'Network, construction and environmental characteristics') and the
manufacturer's specification, including the color code of tubes, ribbons and fibers.

- Criteria for acceptance and rejection:

  If the optical core does not agree with the technical characteristics, the coil will be
rejected and the sampling will be extended to all the coils of the batch to be
received.

  R-OPG test.2.2. - Diameters and thickness of plastic tubes:

- Process:

  The outer diameter, inner diameter, and thickness of the plastic tubes will be measured under a

microscope.

  The measurements will be carried out in accordance with the regulations indicated in table 2.

- Criteria for acceptance and rejection:

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  The measured values must not exceed the nominal characteristics of the supplier
with a tolerance of ± 10%.

  In the event that any measured value of one of the tubes does not meet the established, the coil

will be rejected and sampling will be applied to two coils in the batch.

  In the event of a new failure, the entire batch will be rejected. The supplier may
present to reception those coils that have met the requirements for acceptance.

  R-OPG test.2.3. - Measurement of the diameter of the central element:

- Process:

  According to the manufacturer's procedure with the agreement of Red Eléctrica.

- Criteria for acceptance and rejection:

  The measured value must not exceed the nominal value of the supplier's
characteristics with a tolerance of ± 10%.

  In the event that the measured value does not meet the established, the coil will be
rejected and the sampling will be extended to two coils of the batch. In the event of a
new failure, the entire batch will be rejected. The supplier may present to a new
reception those coils that have met the requirements for acceptance.
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R-OPG.3. Aluminum tube tests

  General aspects of all trials:

- All the tests established in table 3 will be carried out on a selection of coils resulting from
applying the sampling standard that appears in the same table.

  R-OPG.3.1 test. - Diameters and thickness:

- Process:

  The measurement will be carried out on a sample at room temperature, measuring with
a micrometer or a microscope two external diameters and the two internal ones
corresponding to 90º from each other. The thickness will be given by the difference in
diameters.

- Criteria for acceptance and rejection:

  The mean value of the measurements must be within the nominal value with a tolerance of ± 1%.

  The general criteria established in section 6 of the UNE 21044: 1974 standard will be
applied.

  R-OPG test.3.2. - Tightness:

Red Eléctrica will indicate which of the following two methods should be applied:

Method A:

- Process:

  An aluminum tube sample of at least 5 meters with one end sealed will be placed in
water and a constant air pressure of 2 atmospheres will be applied to the other end.

  The pressure to which the tube is subjected throughout the test shall be measured by means of a

manometer.
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- Criteria for acceptance and rejection:

  The test will consist of verifying that there is no air loss through the aluminum tube. To
do this, an observation will be made initially and another after an hour, not having to
observe bubbles in the water. On the other hand, it will be verified that the pressure of
the tube has not undergone variations during the test.

  Once the test is finished and in order to verify that the pressure introduced has
spread throughout the entire sample in the tube, the sealing element will be
removed from the end opposite the one where the air has been introduced. In
this case, the bubbling should be observed.

  The general criteria established in section 6 of the UNE 21044: 1974 standard
will be applied.

Method B:

- Process:

  A complete coil will be pressurized at 2 atmospheres with nitrogen for 24 hours.

  The pressure to which the tube is subjected throughout the test shall be measured by means of a

manometer.

- Criteria for acceptance and rejection:

  It will be verified periodically during the test and especially at the end of the test that the
pressure indicated by the manometer does not vary.

  Once the test is finished and in order to verify that the pressure introduced has spread

throughout the entire sample of the tube, the sealing element from the end opposite the one

where the gas has been introduced will be removed and it will be verified that the gas comes

out at that end.

  The general criteria established in section 6 of the UNE 21044: 1974 standard will be
applied.
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R-OPG. 4. Tests on aluminum coated steel wires

The essays R-OPG4.1, R-OPG4.2, R-OPG4.3, R-OPG4.4 Y R-OPG4.5 They will be carried out in accordance with the
standard indicated in table 4.

R-OPG.5. Tests on alloy wires

The essays R-OPG5.1, R-OPG5.2 Y R-OPG5.3 will be carried out in accordance with the standard indicated in the
table 5.

R-OPG.6. Tests on the complete cable

  R-OPG test.6.1. - Exterior appearance:

- Process:

  According to table 6.

- Criteria for acceptance and rejection:

  According to table 6.

  R-OPG test.6.2. - Cable structure:

- Process:

  According to table 6.

- Criteria for acceptance and rejection:

  Coils that do not conform to the technical characteristics will be rejected.

  R-OPG test.6.3. - Diameter:

- Process:
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  The arithmetic mean of two measurements taken at an angle on the same section will be
taken as the diameter.

  A tolerance of + 1% on the nominal diameter will be allowed.

- Criteria for acceptance and rejection:

  According to table 6.

  R-OPG test.6.4. - Weight per unit of length:

- Process:

  The test shall be carried out by weighing a sample of a minimum length of 1 meter on a
balance.

  The weight per meter of cable should be the nominal +3%.

- Criteria for acceptance and rejection:

  According to table 6.

  R-OPG test.6.5. - Electric resistance:

- Process:

  The method determined by the manufacturer based on the Wheatstone Bridge and
approved by Red Eléctrica.

- Criteria for acceptance and rejection:

  According to table 6.
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  R-OPG test.6.6. - Wiring (or helix) pitch:

- Process:

  According to table 6.

- Criteria for acceptance and rejection:

  According to table 6.

  R-OPG test.6.7. - Cable breaking load *:

- Process:

  To carry out the test, the load will be applied in a linear way until the cable breaks.

  If the break occurs at a distance from the jaw less than 2 times the diameter of the cable
and the requested breaking load is not reached, the test must be repeated with another
sample taken from the same coil.

  This test shall be carried out by means of the appropriate testing machine. The
minimum length of cable tested will be 5 meters (free span).

  In any case, the breaking load must not be less than that specified by the
manufacturer.

- Criteria for acceptance and rejection:

  In the event that the test is not representative or is unsuccessful, two more retests
will be carried out and they must be satisfactory.

  If a new failure is found, the entire batch will be rejected. The supplier may present
at a new reception those coils that have met the requirements for acceptance

* Optional test at the discretion of Red Eléctrica.

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  R-OPG test.6.8. - Thermal cycle*:

- Process:

  According to the T-OPG test. 6. of Annex 4.

- Criteria for acceptance and rejection:

  In the event that the test is not representative or is unsuccessful, two more retests
will be carried out and they must be satisfactory.

  If a new failure is found, the entire batch will be rejected. The supplier may present
at a new reception those coils that have met the requirements for acceptance

* Optional test at the discretion of Red Eléctrica.

  R-OPG test.6.9. - Load / elongation / attenuation *:

- Process:

  According to the T-OPG test. 5. of Annex 4.

- Criteria for acceptance and rejection:

  In the event that the test is not representative or is unsuccessful, two more retests
will be carried out and they must be satisfactory.

  If a new failure is found, the entire batch will be rejected. The supplier may present
at a new reception those coils that have met the requirements for acceptance

* Optional test at the discretion of Red Eléctrica

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3. SAMPLING

The sampling of the coils to be tested will be carried out according to Table III of the UNE 21044: 1974 standard. In
each trial, in addition, the specific sampling criteria are indicated.

This information is in the respective test tables in section 1 (tables 1 to 6).

4. ACCEPTANCE AND REJECTION CRITERIA

The acceptance and rejection criteria are defined in the sections corresponding to each test.
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ANNEX 4: TYPE TESTS FOR APPROVAL OF COMPOSITE EARTH / OPTICAL CABLES (OPGW)

This annex specifies the set of type tests that apply to the homologation of composite optical / earth
cables (OPGW), with their acceptance and rejection criteria.

- T-OPG.1. Vibration Test

- T-OPG. 2. Short Circuit Test

- T-OPG. 3. Lightning Test

- T-OPG. 4. Torsion test

- T-OPG. 5. Load / Elongation / Attenuation Test

- T-OPG. 6. Thermal Cycle Test

- T-OPG. 7. Pulley pass test

- T-OPG. 8. Corrosion test

- T-OPG.9. Drip test of filling components

1. TEST TABLE

The following table defines the type tests necessary for the approval of a new material. In section 2 the
information on each trial is expanded.
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TEST METHOD / STANDARD ACCEPTANCE REQUIREMENTS1

T-OPG.1.   IEEE 1138: 2009   Those indicated in the standard.

Vibration Test (section 6.4.3.1)

T-OPG. 2.   Annex 4 T-OPG.2   Max. Optical core absolute

Short Circuit Test (see description in section 2) temperature: 180 ° C

  At the discretion of Red Eléctrica, it may be carried   Max. Absolute outside cable
out according to IEEE 1138: 2009 standard (section temperature: 220 ° C
6.4.3.3).
Red Eléctrica reserves the right to demand
  Temporary or permanent dimming <
0.05 dB fiber tested.
additional conditions to those established by
this regulation.   No observable damage or cages.

T-OPG. 3.   IEEE 1138: 2009 (section 6.4.3.4) +   Those indicated in the standard.

Lightning Test considerations Annex 4 T-OPG.3

(see considerations in section 2)

T-OPG. 4.   IEEE 1138: 2009 (section 6.4.2.4)   Those indicated in the standard.
Type tests

Torsion test

T-OPG. 5.   Annex 4 T-OPG.5   Elongation <0.05% up to 50% CR cable.

Load / Elongation / (see description in section 2)
  Attenuation <0.15 dB / km FO tested
Attenuation Test up to 50% CR cable.

  FO will not slide.

T-OPG. 6.   IEC 60794-1-22. F1 method+   Those indicated by the IEC 60794-1-2 standard.
Thermal Cycle Test considerations Annex 4 T-OPG.6 (watch Method F1.
considerations in section 2)
  Temporary or permanent attenuation <0.1
dB / km FO tested.

T-OPG. 7.   IEEE 1138-2009 standard (section 6.4.2.1)   Those indicated by the IEEE 1138-
Pulley pass test 2009, section 6.4.2.1

T-OPG. 8.   IEEE 1138-2009 standard (section 6.4.3.8.)   Those indicated by the IEEE 1138-
Corrosion test 2009, section 6.4.3.8.

T-OPG.9.   IEEE 1138: 2009 (section 6.4.3.6)   Those indicated in the standard.

Drip test of filling

components
1 The acceptance criteria are developed in the descriptions of the corresponding tests in section 2. This column is only
a summary.

Table 11. OPGW type test table

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2. DESCRIPTION OF THE TYPICAL TESTS

Previous note: In tests where it is necessary to perform fiber fusions to form a loop, these will be done in
accordance with the provisions of the following table:

NO. OF CABLE FIBERS MINIMUM NUMBER OF FIBERS TO FORM THE LOOP

24 24
48 24
96 36
144 48

Table 12. Minimum number of optical fibers to fuse for tests with optical measurements

T-OPG.1. Vibration test

  Purpose of the test

- Check the integrity of the cable under conditions of wind vibration.

- Check the optical behavior under wind vibration conditions.

  Test preparation

- The preparation will be carried out in accordance with the provisions of the IEEE 1138: 2009 standard,

section 6.4.3.1.

  Process

- This test will be carried out according to the procedure described in IEEE 1138: 2009,
section 6.4.3.1.

  Criteria for acceptance and rejection

- The acceptance and rejection criteria indicated in the IEEE 1138: 2009 standard, section 6.4.3.1,
will be followed.
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T-OPG. 2. Short circuit test

This test will be carried out with the procedure described below. However, if Red Eléctrica so indicates, it may be

carried out according to the IEEE 1138: 2009 standard (section 6.4.3.3).

  Purpose of the test

- Check the integrity of the cable under short-circuit conditions.

- Check the optical behavior under short-circuit conditions.

  Test preparation

- The assembly will be similar to the one shown in the following illustration:

Illustration 2: Short circuit test configuration

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- A cable sample with a minimum length of 5 meters shall be tested.

- The ties must be such as to allow the optical core and optical fibers to be fixed at the ends
to the rest of the cable.

- The fixed cable at the ends of the lashings shall be subjected to a tension of between 15% and
20% of its rated breaking load.

- During the test, the temperature will be measured at at least three different and
equidistant points and the attenuation of the optical fibers using convenient sampling
frequencies (in both cases, at least 10 samples per second will be required).

- The initial ambient temperature must be indicated.

- The cable should be conditioned to an initial temperature of 40 C   5 C.

- Optical Considerations:

  To perform the optical measurements, the optical fibers will be fused in a loop,
following the minimum criteria established in table 2 of this annex. The length of
the fiber loop will be at least 100m.

  The test will be monitored with a source - optical power meter assembly, following the
assembly according to the IEEE 1138-2009 standard in its section 6.2.

  Measurements will be made at 1550 nm. These should be stored digitally using the
sampling frequency already indicated.

  Process

- Through the jaws used to tie the cable, a current will be injected into the sample under test
for a certain time interval. The values of the injected current and the duration shall
correspond to the maximums specified by the manufacturer for the cable under test.

- This test will be repeated 5 times:

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  The first 3 current pulses will be made with the sensors located in such a way that
the temperature of the cable is measured on the surface of the aluminum tube.

  The last 2 current pulses will be made with at least two of the sensors located in
such a way as to measure the temperature in the optical core (inside the aluminum
tube) and at least one sensor on the surface of the aluminum tube.

- During the first 3 current pulses, the optical measurements will be taken with the optical
considerations described. These measurements will be continuously monitored at least 2
minutes before until at least 5 minutes after each pulse. A measurement should also be
recorded when sufficient time has elapsed for the cable to stabilize at the initial
temperature.

  Criteria for acceptance and rejection

- The temperature of the cable must not exceed the following values:

  Maximum absolute temperature of the optical core: 180 C

  Maximum absolute temperature outside the cable: 220 C

- Throughout the test, the maximum variation in fiber attenuation (temporary or permanent)
will never exceed 0.05 dB per fiber tested.Four.

- Once the optical measurements are finished, a visual inspection of the cable will be carried
out, checking that no permanent cages have been formed. Then it
They will disassemble the different parts of the cable by inspecting the different
components that make it up, paying special attention to the closest points, to the
termination accessories and the cable's optical core, and no significant damage should be
observed.

4 For example, in the case of having 24 looped fibers, the pass criterion would be 24 x 0.05 = 1.2 dB
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T-OPG. 3. Lightning test

  Purpose of the test

- Check the integrity of the cable under lightning conditions.

- Check the optical behavior in lightning conditions.

  Test preparation

- The preparation will be carried out in accordance with the provisions of the IEEE 1138: 2009 standard,

section 6.4.3.4.

  Process

- This test will be carried out according to the procedure described in the IEEE 1138: 2009 standard, section

6.4.3.4. In addition to what is indicated in the standard, the following considerations will be taken into

account:

  The wave will be negative in polarity.

  The essay will be CLASS 2 (150 C).

- For cables with special designs, these parameters may be modified, at the discretion of Red
Eléctrica.

  Criteria for acceptance and rejection

- The acceptance and rejection criteria indicated in the IEEE 1138: 2009 standard will be followed,

section 6.4.3.4.
At Red Eléctrica's discretion, once these tests have been carried out, the samples will be broken on the traction bench

to check the remaining breaking load, which must be greater than 50% of the cable's breaking load.
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T-OPG. 4. Torsion test

  Purpose of the test

- To know the mechanical and optical behavior of the cable when it is subjected to a torsion
as a consequence of a load applied to one of its ends.

  Test preparation

- The preparation will be carried out in accordance with the provisions of the IEEE 1138: 2009 standard,

section 6.4.2.4.

  Process

- This test will be carried out according to the procedure described in the IEEE 1138: 2009 standard,
section 6.4.2.4.

  Criteria for acceptance and rejection

- The acceptance and rejection criteria indicated in the IEEE 1138: 2009 standard, section 6.4.2.4,
will be followed.
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T-OPG. 5. Load-elongation-attenuation test

  Purpose of the test

- Check the optical behavior under stress conditions.

- Check that the extra-length of optical fiber is adequate to the required requirements.

  Test preparation

- The test will be performed at room temperature (22 ± 3 ° C) on a cable sample placed in a
setup similar to that shown in illustration 2.

- The distance between moorings will be greater than 10 meters.

- The cable needs to be fixed at the ends. Two options are allowed for this fixation:

  Option 1: If possible, ties (epoxy type or similar) will be used to allow this fixation.

  Option 2: In order to ensure that there is no slippage of the fibers from the parts of
the cable not subjected to the mechanical stress of the test, one or two turns of the
cable shall be made at each end of the test. In addition, the plastic tubes of the
optical core will be marked on both end ends of the cable (for example, with a
marker) at the exact points where they are exposed. The fibers will also be marked
at the exact point where they are uncovered. If, at the end of the test, slippage of
the fibers / optical core is observed at either end of the test, it will be considered null.
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Illustration 3. Assembly diagram for load - elongation - attenuation test

- Optical Considerations:

  The optical fibers will be spliced by fusion forming a complete loop following the
minimum criteria established in Table 2 of this annex and an equipment will be
connected to them to measure variations in attenuation and length. If you do not
have a device that allows you to measure both parameters at the same time, you
will have looped fibers for one measurement and other fibers, also looped, for the
other.

  Measurements will be made at 1550 nm. These should be stored digitally using a
convenient sample rate.

- A device will be used that measures the elongation of the cable that will be placed between
the mooring devices. Cable elongation measurements will be stored digitally using a
sample rate of at least one sample per second.
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  Process

The test consists of two independent load cycles:

- First charge cycle:

  The cable will initially be loaded to approximately 8% of its breaking load.

  The draft will be increased to a value (set between customer and manufacturer) that exceeds the

50% of the breaking load.

  It will return to the initial value of 8% of the breaking load.

  The steps from weather required They are the following:

Tension 8% 10% fifteen% twenty% 25% 30% 35% 40% Four. Five% > 50% 8%
(% Load Break)

Time (min) 3 3 3 3 3 3 3 3 3 10 10

Table 13 Time steps for the first charge cycle

  The increase in load will be uniform during the test.

  During these ramps, the elongation of the cable and the attenuation and elongation
variations of the optical fibers (fiber strain) will be measured. Measurements will be
taken at periodic intervals with the sampling indicated above and whenever it is
sufficient to allow their representation in a graph. Special attention will be paid to
the point at which the elongation of the fibers begins, as well as to the point at
which 50% of the breaking load is exceeded.

- Second charge cycle:

  The pulling force will be increased again until it is verified that the slope of the
elongation curve of the fibers and of the cable is the same, this effect having to
occur before reaching the breaking load of the cable.
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  The results will be represented in a graph similar to the following one, observing
that both curves present the same slope from a certain point:

Illustration 4 Example of graph to represent the results

  Criteria for acceptance and rejection

- First charge cycle:

  On the ascent ramp, the increase in length of the optical fibers must be less than
0.05% up to a load equal to or greater than 50% of the breaking load. Likewise, in
this ramp the increase in the attenuation of the optical fibers will be less than 0.15
dB / km of fiber tested.

  The test will be considered void in the event that the fibers and tubes slip.

- Second charge cycle:

  It must be verified that, from a certain load, the optical fibers are subjected to the
same pulling force as the cable.
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T-OPG. 6. Thermal cycle test

  Purpose of the test

- Check the integrity of the cable under different thermal conditions.

- Check the optical behavior in different thermal conditions.

  Test preparation and procedure

- The set will be introduced into a thermal chamber reaching extreme temperatures from -30
° C to +70 ° C following the following cycle, which will be repeated twice:

T (ºC)
+ 70

Tenvironment 0 t (h)
6 30 36 42 66 72

- 30

Illustration 5 Thermal Cycle (only 1 cycle is illustrated)

- The thermal cycle consists of the following steps:

  The starting point is room temperature (22 ± 3 ° C).

  Drop from room temperature to -30 ° C in 6 hours.

  Maintaining this temperature for 24 hours.

  Ascent to +70 ° C in 12 hours.

  Maintenance at this temperature for 24 hours.

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  Return to room temperature in 6 hours.

  Once the first cycle is finished, it will repeat itself.

- At a minimum, measurements will be taken at each variation of the cycle, although a periodic record
of measurements throughout the trial is preferable. Measurements will be made at 1550 nm.

  Criteria for acceptance and rejection

- In any case, the attenuation variations must not exceed 0.1 dB / km of fiber tested.
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T-OPG. 7. Pulley pass test

  Purpose of the test

- Check the integrity of the cable under installation conditions.

- Check the optical behavior under installation conditions.

  Test preparation

- The preparation will be carried out in accordance with the provisions of the IEEE 1138: 2009 standard,

section 6.4.2.1.

  Process

- This test will be carried out according to the procedure described in the IEEE 1138: 2009 standard,

section 6.4.2.1.

  Criteria for acceptance and rejection

- The acceptance and rejection criteria indicated in the IEEE 1138: 2009 standard, section 6.4.2.1
will be followed.
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T-OPG. 8. Corrosion test

  Purpose of the test

- Check the integrity of the cable under ambient conditions.

  Test preparation

- The preparation will be carried out in accordance with the provisions of the IEEE 1138: 2009 standard,

section 6.4.3.8.

  Process

- This test will be carried out according to the procedure described in the IEEE 1138: 2009 standard,
section 6.4.3.8.

  Criteria for acceptance and rejection

- The acceptance and rejection criteria indicated in the IEEE 1138: 2009 standard, section 6.4.3.8,
will be followed.
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T-OPG.9. Drip test of filling components

  Purpose of the test

- Check the suitability of the filler components.

  Test preparation

- The preparation will be carried out in accordance with the provisions of the IEEE 1138: 2009 standard,

section 6.4.3.6.

  Process

- This test will be carried out according to the procedure described in the IEEE 1138: 2009
standard, section 6.4.3.6.

  Criteria for acceptance and rejection

- The acceptance and rejection criteria indicated in the IEEE 1138: 2009 standard, section 6.4.3.6,

will be followed.
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3. ACCEPTANCE AND REJECTION CRITERIA

The acceptance and rejection criteria are defined in the sections corresponding to each test or, where
appropriate, in the reference standard.

In the event that the test is not representative or is unsuccessful, two other retests will be carried out.
Both should be satisfactory. Otherwise, the product cannot be approved.
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ANNEX 5: HISTORY OF MODIFICATIONS

1. Body change control:

Affects: Edition / Date Cancel to: Change control

Body 5 / 28.10.20 ET032 Ed.4 /   The content of ET032 Ed.04 is unified

08.22.18 (Composite earth / optical cable for short-
circuit current of 17 kA for lines of
ET033 Ed.4 /
400/220/132/66 kV) and ET033 Ed.04
08.22.18
(Composite earth / optical cable of short-
circuit current of 25 kA for lines of 400-220132-
66 kV) in a single standard.

  It is included in the section “Tests and

Tests ”the details of the acceptance and
homologation tests of this material.

2. Control of annex changes:

Affects: Edition / Date Cancel to: Change control

Appendix 1 5 / 28.10.20 Annex 1 ET032   The regulation table is updated.

Ed.4 / 22.08.18

Appendix 2 1 / 28.10.20 NA   New annex: Models.

Annex 3 1 / 28.10.20 NA   New annex: Reception tests.

Annex 4 1 / 28.10.20 NA   New annex: Type approval tests.

Annex 5 1 / 28.10.20 NA   New annex: History of modifications.