November 15, 2018

November 15, 2018

TRANSMISSION ENGINEERING STANDARD TES-P-108.11, Rev. 01

TABLE OF CONTENTS

1.0 SCOPE

2.0 GENERAL

3.0 PLAIN OVERHEAD AND UNDERGROUND FEEDER PROTECTION

4.0 CONSUMER FEEDER WITHOUT UNIT PROTECTION

5.0 CONSUMER FEEDER WITH UNIT PROTECTION (DEPENDING ON THE

CUSTOMERS’ DEMAND AND SYSTEM REQUIREMENTS)

6.0 SINGLE LINE DRAWINGS

7.0 BIBLIOGRAPHY

TES-P-108.11R01/KHF Date of Approval: November 15, 2018 PAGE 2 OF 10

TRANSMISSION ENGINEERING STANDARD TES-P-108.11, Rev. 01

1.0 SCOPE:

This Transmission Engineering Standard (TES) specifies the protection systems for 11kV
and 13.8kV overhead and underground cables of plain and consumer feeders of the National
Grid SA.

2.0 GENERAL:

2.1 Feeder protection shall comply with the latest revision of the National Grid SA
Standard 41-TMSS-01 - Protective Relays and with the National Grid SA’s List of
Technically Approved Manufacturers (LOTAM).

2.2 Test switches shall have CT shorting facility while inserting test plug and shall be
provided for all necessary circuits such as current and voltage inputs, trip signals, etc.

2.3 Protection IN/OUT switching facility shall be provided for consumer feeder
protection IED on feeder by means of external switches.

2.4 The said IN/OUT switching facility shall remove the tripping outputs, inhibit the
protection faulty alarm and shall be operable from the LV compartment or protection
panel with back indications at Station Human Machine Interface (HMI) and at remote
respective Regional Control Centre (RCC).

2.5 A white lamp shall be provided on the relay panel to indicate when each protection is
out of service.

2.6 Local and remote alarms for feeders’ IEDs shall be as stated in the latest revision of
National Grid SA Standards 38-TMMS-05 and TES-P-107-02.

2.7 Feeder protection schemes shall have a communication interface with the SAS with
protocol IEC 61850 Edition 2 and IEC 62439-3 for (PRP-1).

2.8 CT requirements shall comply with the latest revision of the National Grid SA
standard 50-TMSS-01 - Current Transformer 11kV through 380 kV.

2.9 Unless otherwise specified, the BCPU and/or IED and associated auxiliaries (test
switches, tripping relays, auxiliary relays, In/Out selector switch, etc.) shall be
accommodated in LV Compartment of the switchgear Panel and shall comply with
the latest revision of National Grid SA standard 31-TMSS-01.

2.10 50CBF circuit breaker failure protection shall be built in the same BCPU and/or
protection IED.

2.11 CBF shall trip and block reclosing of the associated outgoing feeders, bus section CB
and transformer LV CB. It shall be initiated internally using the SOTF logic and
arrangements shall be made to avoid any spikes initiating the CBF.

2.12 Circuit breaker failure 86CBF trip relay should not cause damage to TC 1 and TC 2
of CB.

TES-P-108.11R01/KHF Date of Approval: November 15, 2018 PAGE 3 OF 10

TRANSMISSION ENGINEERING STANDARD TES-P-108.11, Rev. 01

2.13 Auto-recloser shall be built in the BCPU and/or IED of all outgoing feeders, and shall
be activated only for overhead feeder. (if required). It shall be initiated by any feeder
protection trip signals and shall be applied in case of a single-phase to ground fault
located on the line circuit (but shall be inhibited in case of Cable Differential-87C,
Directional EF - 67G or Multiphase Faults). The AR shall be provided with IN/OUT
selector switch for any feeder type.

2.14 Trip Circuit Supervision shall be built in BCPU and/or protection IED and shall
provide alarm when a failure is detected in the circuit breaker tripping control circuit.
TCS shall be available during CB open or close conditions and when there is a trip
signal present or none.

2.15 VT supervision shall be built in the same BCPU and/or protection IED.

2.16 All operations shall be annunciated, initiate the fault recorder and SOE

3.0 PLAIN OVERHEAD AND UNDERGROUND FEEDER PROTECTION:

3.1 Plain feeder protection shall include multi-characteristic steps of phase and earth fault
protection (O/C and E/F). The protection features shall be built in bay control
protection unit (BCPU). The overhead feeder protection shall also include sensitive
earth fault (SEF).

3.2 Instantaneous (O/C and E/F) and delayed overcurrent and earth fault elements of
overhead line feeders shall trip CB via both trip coils. and initiate CBF. And the
auto-recloser shall be initiated by instantaneous trip signals. All these functions shall
be built in the same BCPU.

3.3 Instantaneous and delayed overcurrent and earth fault elements of underground
feeder protection shall trip both the tripping coils and block CB closing as well as
initiate the built-in CBF protection.

3.4 Input voltage for the BCPU shall be taken from respective bus VT.

4.0 CONSUMER FEEDER WITHOUT UNIT PROTECTION:

4.1 Consumer feeder protection shall be built in the bay control and protection IED
(BCPU). It shall include at least the multi-characteristics steps of Phase and Earth
fault over current (50P/51P/50G/51G) protection as well as the directional
overcurrent and earth fault features.

4.2 Instantaneous and/or delayed overcurrent and earth fault protections shall send signal
to trip coil 1and trip coil 2 and initiate the CBF protection.

4.3 The instantaneous trip output shall have visual isolation facility in front panel. Any
change in the position of the isolation facility must be sent to the control center, in
addition to disabling the trip outputs in the software.

TES-P-108.11R01/KHF Date of Approval: November 15, 2018 PAGE 4 OF 10

TRANSMISSION ENGINEERING STANDARD TES-P-108.11, Rev. 01

4.4 Unless otherwise specified, the voltage for DEF function shall be taken from the
respective feeder.

5.0 CONSUMER FEEDER WITH UNIT PROTECTION (DEPENDING ON THE

CUSTOMERS DEMAND AND SYSTEM REQUIREMENTS):

5.1 If PTS/SOW specifies the Consumer feeder is with unit protection, the feeder
protection shall include Main and Backup protections.

5.2 The main protection shall be IED relay and shall work on current differential
principle. It shall include at least line differential (87L) and directional earth fault
(67N) protection functions.

5.3 The backup protection shall be built in the bay control and protection IED (BCPU).
It shall include at least the multi-characteristics steps of Phase and Earth fault over
current (50/51) protection as well as directional overcurrent and earth fault features.

5.4 The Main protection shall be supplied from the DC source +/-1, and the backup
protection shall be supplied from the DC source +/-2.

5.5 The main and the backup of protection shall send signal to trip coils 1 and 2, block
circuit breaker closing, initiate the CBF protection and shall send signal to trip the
remote end.

5.6 The 87L and 67 Trip output shall have visual isolation facility on front panel. Any
change in the position of the isolation facility shall be sent to the control center, in
addition to disabling in software.

5.7 For the line differential feature, the communication between both circuit ends shall be
carried out directly between the relays through a fiber optic route.

5.8 Unless otherwise specified, the input voltage for DEF function shall be taken from the
respective feeder VT.

6.0 SINGLE LINE DRAWINGS:

6.1 Typical One Line Diagram Protection 11Kv or 13.8Kv Plain Overhead Feeder Single
Bus Bar S/S (page 7/10)

6.2 Typical One Line Diagram Protection 11Kv or 13.8Kv Plain Underground Cable
Feeder Single Bus Bar S/S (page 8/10)

6.3 11Kv or 13.8kV Consumer Feeder (page 9/10)

6.4 11Kv or 13.8kV Consumer Feeder With Unit Protection (page 10/10)

TES-P-108.11R01/KHF Date of Approval: November 15, 2018 PAGE 5 OF 10

TRANSMISSION ENGINEERING STANDARD TES-P-108.11, Rev. 01

7.0 BIBLIOGRAPHY:

IEC 60255-1 Measuring Relays and Protection Equipment – Part 1: Common

requirements - Edition 1.0

IEC 60255-12 Electrical Relays Part 12: Directional Relays and Power Relays with
Two Input Energizing Quantities - Edition 1.0

IEC 60255-13 Electrical Relays Part 13: Biased (Percentage) Differential Relays -
Edition 1.0

IEC 60255-121 Measuring Relays and Protection Equipment – Part 121: Functional
requirements for distance protection - Edition 1.0

IEC 60255-151 Measuring Relays and Protection Equipment Part 151 Functional
requirements for over/under current protection. Edition 1.0

IEEE C37.230 IEEE Guide for Protective Relay Applications to Distribution Lines

41-TMSS.01 Protective Relays

IEC 61850 Ed. 2 Communication Networks and Systems in Substations

IEC 62439-3 Industrial Communication Networks - High availability automation

networks - Part3. Parallel Redundancy Protocol (PRP) and High-
availability Seamless Redundancy HSR

TES-P-108.11R01/KHF Date of Approval: November 15, 2018 PAGE 6 OF 10

 of -
NOTES
REV. NO. SHEET NO. DRAWING NUMBER PLANT NO. INDEX JOB ORDER NO. CONTRACT NO.

OW NER.
TS
OF I
CONSENT
11kV OR 13.8kV B/B

TTEN
MCB

THE W RI
BLOCK

BLOCK

L-2

L-2

L-2
CLOSE

FR/SAS
P

BCPU
BVT

ALARM
L-1

L-1

START CBF
TRI
ES1

COI

COI

COI
COI

COI

CBS

COMM
P

CLOSE

CB
P

L-1 &
TRI

P
TRI

TRI
TRI

TRI
CB

ATED
LEGEND :

THOUT
8kV

COI
CB

CB

CB
CB

CB

ASSOCI
CB

13.
8kV
50/50N INST. OVERCURRENT & EARTHFAULT

NCOMER
NCOMER

P
8kV

TRI
8kV
8kV

WI
13.

11 OR
51/51N DELAY OVERCURRENT & EARTHFAULT

13.
13.
13.

CB

8kV
I
I
11 OR
67/67N DIRECTIONAL OVERCURRENT & EARTH FAULT

DOCUMENT
11 OR
11 OR

8kV
11 OR

13.
8kV

E
TI
50CBF CIRCUIT BREAKER FAILURE PROTECTION
METERING

13.
13.

BUS

11 OR
TCS TRIP CIRCUIT SUPERVISION

11 OR
11 OR
BCPU BAY CONTROL PROTECTION UNIT

8kV
13.

S
CT CURRENT TRANSFORMER

THI
B/BP BUSBAR PROTECTION

11 OR

FROM
AR SELECTOR TS TEST BLOCK
SWITCH
P2 CB CIRCUIT BREAKER
T-S

MCB MINIATURE CIRCUIT BREAKER

NED
AR OUT
VT VOLTAGE TRANSFORMER

SHALL BE OBTAI
DPDM DIGITAL POWER DEMAND METER

79AR AUTO RECLOSER

BCPU
FR FAULT RECLOSER

50/50N SEF TRIP

51/51N

PART
O/C & E/F TRIP

67/67N

N
79 AR CLOSE

I
FULL OR
T-S 79
CT1
79 AR BLOCK

TCS
TCS

N
I
50 86BF

ON
CBF 50 CBF TRIP

REPRODUCTI
S O

RELAY FAIL
REFERENCE DRAWINGS
DRAWING TITLE DRAWING NO.

DRAWING CONTROL SHEET -

IEC 61850 COMM.
-

NO
-

d SA
-

onalGri
-

OF Nati
T-S T-S
CT2
METERING BVT

FROM B/B PANEL

ARE THE SOLE PROPERTY

86BB

B/BP TRIP S O

BB PORT. PANEL
T-S
CT3
87BB

N
HEREI
P1

NED
CONTAI
L1
REV. DATE BY ORIG'D CERT. APPD.
DESCRIPTION
S1 NO.
(S01)

ON
PLAIN OHL FEEDER

NFORMATI
‫ءﺍﺏﺭﻩﻙﻝﻝ ﺓﻱﺩﻭﻉﺱﻝﺍ ﺓﻙﺭﺵﻝﺍ ﺕﺍﻙﺭﺵ ﻯﺩﺡﺇ‬
Subsidiary of Saudi Electricity Company

THE I
MSM KAB NTS
DRAWN BY CHECKED BY SCALE:

10-04-2018 17-02-2016
DATE STARTED DATE COMPLETED

AND
ORIGINATED BY CERTIFIED BY

THIS DRAWING IS NOT TO BE USED FOR APPROVED

NG
CONSTRUCTION OR FOR ORDERING

DRAW I
MATERIAL UNTIL CERTIFIED AND DATED BY DATE

TYPICAL ONE LINE DIAGRAM PROTECTION 11kV OR

13.8kV PLAIN OVER HEAD FEEDER SINGLE BUS BAR S/S

S
THI
STANDARD SAUDI ARABIA
PAGE 7 OF 10 CONTRACT NO. JOB ORDER NO. INDEX PLANT NO. DRAWING NUMBER SHEET NO. REV. NO.

- -- TES-P-108-1101 of 01 01
NG-A (2012/01)

EDMS VECTOR NGA00

 of -
NOTES
REV. NO. SHEET NO. DRAWING NUMBER PLANT NO. INDEX JOB ORDER NO. CONTRACT NO.

OW NER.
TS
OF I
CONSENT
11kV OR 13.8kV B/B

TTEN
MCB

THE W RI
L- 1

L- 1
BVT

L- 2

CLOSE

L- 2

L- 2

FR/SAS

START CBF
P BLOCK

CLOSE BLOCK

BCPU
ALARM
ATED CBS TRI
ES1

P COI

P COI
P COI

P COI

COI

COM M
CB
TRI

TRI

TRI

L- 1 &
TRI

TRI
CB
LEGEND :

8kV

THOUT
8kV CB

CB

NCOM ER CB
CB

NCOM ER CB

8kV ASSOCI

P COI
8kV CB

11 OR 13.
50/50N INST. OVERCURRENT & EARTHFAULT

8kV

8kV
11 OR13.

TRI

WI
11 OR 13.
11 OR 13.

11 OR 13.
51/51N DELAY OVERCURRENT & EARTHFAULT

8kV I

8kV I

E CB
11 OR 13.
67/67N DIRECTIONAL OVERCURRENT & EARTH FAULT

DOCUMENT
8kV BUS TI
11 OR 13.

11 OR 13.
50CBF CIRCUIT BREAKER FAILURE PROTECTION
METERING
TCS TRIP CIRCUIT SUPERVISION

BCPU BAY CONTROL PROTECTION UNIT

11 OR 13.

S
CT CURRENT TRANSFORMER

THI
B/BP BUSBAR PROTECTION

FROM
AR SELECTOR TS TEST BLOCK
SWITCH
P2 CB CIRCUIT BREAKER
T-S

MCB MINIATURE CIRCUIT BREAKER

NED
AR OUT
VT VOLTAGE TRANSFORMER

SHALL BE OBTAI
DPDM DIGITAL POWER DEMAND METER

79AR AUTO RECLOSER

BCPU
FR FAULT RECLOSER

50/50N SEF TRIP

51/51N

PART
O/C & E/F TRIP

67/67N

N
I
79 79 AR CLOSER

FULL OR
T-S
CT1

TCS TCS

N
I
86CBF
50

ON
CBF 50 CBF TRIP STAG1
S O

REPRODUCTI
RELAY FAIL REFERENCE DRAWINGS
DRAWING TITLE DRAWING NO.

IEC 61850 COMM. DRAWING CONTROL SHEET -

NO
-

d SA
-

onalGri
-

OF Nati
T-S T-S
CT2
METERING VT

FROM B/B PANEL

ARE THE SOLE PROPERTY

86BB

B/BP TRIP S O

BB PORT. PANEL
T-S
CT3
87BB

N
HEREI
P1

NED
CONTAI
L1
REV. DATE BY ORIG'D CERT. APPD.
DESCRIPTION
S1 NO.
(S01)

ON
PLAIN U/G FEEDER

NFORMATI
‫ءﺍﺏﺭﻩﻙﻝﻝ ﺓﻱﺩﻭﻉﺱﻝﺍ ﺓﻙﺭﺵﻝﺍ ﺕﺍﻙﺭﺵ ﻯﺩﺡﺇ‬
Subsidiary of Saudi Electricity Company

THE I
MSM KAB NTS
DRAWN BY CHECKED BY SCALE:

10-04-2018 17-02-2016
DATE STARTED DATE COMPLETED

AND
ORIGINATED BY CERTIFIED BY

THIS DRAWING IS NOT TO BE USED FOR APPROVED

NG
CONSTRUCTION OR FOR ORDERING

DRAW I
MATERIAL UNTIL CERTIFIED AND DATED BY DATE

TYPICAL ONE LINE DIAGRAM PROTECTION 11kV OR

13.8kV PLAIN UNDER GROUND FEEDER SINGLE BUS BAR S/S

S
THI
STANDARD SAUDI ARABIA
PAGE 8 OF 10 CONTRACT NO. JOB ORDER NO. INDEX PLANT NO. DRAWING NUMBER SHEET NO. REV. NO.

- -- TES-P-108-1101 of 01 01
NG-A (2012/01)

EDMS VECTOR NGA00

 of -
NOTES
REV. NO. SHEET NO. DRAWING NUMBER PLANT NO. INDEX JOB ORDER NO. CONTRACT NO.

OW NER.
TS
OF I
11kV OR 13.8kV B/B

CONSENT
BLOCK

BLOCK

L-2

L-2

L-2

GNAL

CBF
CLOSE

FR/SAS
P

BCPU
ALARM
L-1

L-1

TRI
ES1

COI

COI

COI
COI

COI

SI

START
CBS

COMM

TTEN
P

CLOSE

CB
P

L-1 &
TRI

P
P

P
TRI

TRI

TRI
TRI

TRI
CB

ATED

THE W RI
8kV

COI
CB

CB

CB

NTER
CB

CB

ASSOCI
CB

13.
8kV

NCOMER
NCOMER

I
8kV

TRI
8kV
8kV
11 OR13.

11 OR

REMOTE
13.
13.
13.

CB

8kV
I
I
LEGEND :

THOUT
11 OR
11 OR

8kV
11 OR

13.
8kV

E
TI
13.
13.
50/50N INST. OVERCURRENT & EARTHFAULT

BUS

11 OR

WI
11 OR
51/51N DELAY OVERCURRENT & EARTHFAULT

11 OR

8kV
67/67N DIRECTIONAL OVERCURRENT & EARTH FAULT

DOCUMENT
13.
50CBF CIRCUIT BREAKER FAILURE PROTECTION

11 OR
TCS TRIP CIRCUIT SUPERVISION

BCPU BAY CONTROL PROTECTION UNIT

P2

S
TS TEST BLOCK

THI
CB CIRCUIT BREAKER

FROM
AR SELECTOR CT CURRENT TRANSFORMER
SWITCH
B/BP BUSBAR PROTECTION

DPDM DIGITAL POWER DEMAND METER

NED
AR OUT
79AR AUTO RECLOSER

SHALL BE OBTAI
FR FAULT RECLOSER

BCPU

O/C & E/F TRIP

TCS

PART
50/50N

51-2/51-2N
AR CLOSE

50-2/50N-2

N
I
86CBF
67-2/67-2N

FULL OR
T-S
CT1
50CBF 50 CBF TRIP STAGE2

TCS

79

T-S RELAY FAIL

N
I
INPUT VT VOLTAGE

ON
REPRODUCTI
IEC 61850 COMM.

REFERENCE DRAWINGS
DRAWING TITLE DRAWING NO.

DRAWING CONTROL SHEET -

NO
-
T-S T-S
CT2

d SA
METERING INPUT VT VOLTAGE -

onalGri
FROM B/B PANEL
86 BB -

B/BP TRIP S O -

OF Nati
BB PORT. PANEL
T-S
CT3
87BB

ARE THE SOLE PROPERTY

N
HEREINED
CONTAI
REV. DATE BY ORIG'D CERT. APPD.
DESCRIPTION
NO.

ON
NFORMATI
‫ءﺍﺏﺭﻩﻙﻝﻝ ﺓﻱﺩﻭﻉﺱﻝﺍ ﺓﻙﺭﺵﻝﺍ ﺕﺍﻙﺭﺵ ﻯﺩﺡﺇ‬
Subsidiary of Saudi Electricity Company

THE I
MSM KAB NTS
DRAWN BY CHECKED BY SCALE:

P1 10-04-2018 17-02-2016
DATE STARTED DATE COMPLETED

AND
ORIGINATED BY CERTIFIED BY
L1

S1
THIS DRAWING IS NOT TO BE USED FOR APPROVED
(S01)

NG
CONSTRUCTION OR FOR ORDERING

DRAW I
MATERIAL UNTIL CERTIFIED AND DATED BY DATE
CONSUMER U/G CABLE FEEDER

11 Kv OR 13.8kV CONSUMER U-G FEEDER

S
THI
PAGE 9 OF 10 STANDARD SAUDI ARABIA
CONTRACT NO. JOB ORDER NO. INDEX PLANT NO. DRAWING NUMBER SHEET NO. REV. NO.

- --- TES-P-108-1101 of 01 01
NG-A (2012/01)

EDMS VECTOR NGA00

 of -
NOTES
REV. NO. SHEET NO. DRAWING NUMBER PLANT NO. INDEX JOB ORDER NO. CONTRACT NO.

OW NER.
TS
OF I
11kV OR 13.8kV B/B

CONSENT
BLOCK

BLOCK

L-2

L-2

L-2

GNAL

CBF
CLOSE

FR/SAS
P

BCPU
ALARM
L-1

L-1

TRI
ES1

COI

COI

COI
COI

COI

SI

START
CBS

COMM

TTEN
P

CLOSE

CB
P

L-1 &
TRI

P
P

P
TRI

TRI

TRI
TRI

TRI
CB

ATED

THE W RI
8kV

COI
CB

CB

CB

NTER
CB

CB

ASSOCI
CB

13.
8kV

NCOMER
NCOMER

I
8kV

TRI
8kV
8kV
11 OR13.

11 OR

REMOTE
13.
13.
13.

CB

8kV
I
I
LEGEND :

THOUT
11 OR
11 OR

8kV
11 OR

13.
8kV

E
TI
13.
13.
87l LINE DIFFERENTIAL

BUS

11 OR

WI
11 OR
21 DISTANCE PROTECTION

11 OR

8kV
50/50N INST. OVERCURRENT & EARTHFAULT

DOCUMENT
13.
51/51N DELAY OVERCURRENT & EARTHFAULT

11 OR
67/67N DIRECTIONAL OVERCURRENT & EARTH FAULT

50CBF CIRCUIT BREAKER FAILURE PROTECTION

P2

S
TCS TRIP CIRCUIT SUPERVISION

THI
BCPU BAY CONTROL PROTECTION UNIT

FROM
AR SELECTOR TS TEST BLOCK
SWITCH
CB CIRCUIT BREAKER

CT CURRENT TRANSFORMER

NED
SET-1 IED
AR OUT
VT VOLTAGE TRANSFORMER

SHALL BE OBTAI
PROTECTION TRIP B/BP BUSBAR PROTECTION

U/F UNDER FREQUENCY

87L/21 CBF PROTECTION TRIP STAGE 1 U/G UNDER VOLTAGE

67-1/67N-1
DPDM DIGITAL POWER DEMAND METER
51-1/51-1N
TCS
MCR DIGITAL POWER DEMAND METER
50-1/50N-1
79AR MINIATURE CIRCUIT BREAKER
T-S

PART
50BF
CT1 RELAY FAIL
FR FAULT RECLOSER
TCS

79

N
I
IEC 61850 COMM.
VTS

FULL OR
AR CLOSE

N
I
T-S

ON
REPRODUCTI
REFERENCE DRAWINGS
BOX-2 BCPU
DRAWING TITLE DRAWING NO.
O/C & E/F TRIP
DRAWING CONTROL SHEET -

-
TCS

NO
-
50/50N
86CBF

d SA
51-2/51-2N -

50-2/50N-2 -

onalGri
67-2/67-2N
50 CBF TRIP STAGE2 -
T-S
50CBF
CT1 -

OF Nati
TCS
RELAY FAIL
79

VTS
T-S IEC 61850 COMM.

ARE THE SOLE PROPERTY

AR CLOSE

INPUT VT VOLTAGE

T-S T-S
CT2
METERING INPUT VT VOLTAGE

FROM B/B PANEL

N
86 BB

HEREI
B/BP TRIP S O

BB PORT. PANEL

NED
T-S
CT3

CONTAI
87BB

REV. DATE BY ORIG'D CERT. APPD.

DESCRIPTION
NO.

ON
NFORMATI
‫ءﺍﺏﺭﻩﻙﻝﻝ ﺓﻱﺩﻭﻉﺱﻝﺍ ﺓﻙﺭﺵﻝﺍ ﺕﺍﻙﺭﺵ ﻯﺩﺡﺇ‬
Subsidiary of Saudi Electricity Company

THE I
MSM KAB NTS
DRAWN BY CHECKED BY SCALE:

P1 10-02-2016 17-02-2016
DATE STARTED DATE COMPLETED

AND
ORIGINATED BY CERTIFIED BY
L1

S1
THIS DRAWING IS NOT TO BE USED FOR APPROVED
(S01)

NG
CONSTRUCTION OR FOR ORDERING

DRAW I
MATERIAL UNTIL CERTIFIED AND DATED BY DATE
CONSUMER U/G CABLE FEEDER

11 Kv OR 13.8kV CONSUMER U-G FEEDER

13.8kV WITH UNIT PROTECTION SINGLE BUS BAR S/S

S
THI
STANDARD SAUDI ARABIA
PAGE 10 OF 10 CONTRACT NO. JOB ORDER NO. INDEX PLANT NO. DRAWING NUMBER SHEET NO. REV. NO.

- -- TES-P-108-1101 of 01 01
NG-A (2012/01)

EDMS VECTOR NGA00