Energy Division

Raychem screened, separable

connection system RSTI-Large
for large cross sections 1250 A
up to 42 kV
Raychem screened, separable connection system RSTI-Large
for large cross sections 1250 A up to 42 kV

Features Accessories
• The insulation of the connector is Raychem RSTI screened separable
made of a highly modified silicone connectors are designed to connect
rubber characterised by high tracking single- and three-core polymeric cables Terminating plug
resistance, elongation at break and to medium-voltage gas insulated Ref. no.: RSTI-68TP
non-flammability. switchgear and other equipment using
• A thin walled screen is permanently CENELEC bushings Type C1=630 A and
bonded onto the insulation and pro- C2=1250 A, specified up to 42 kV.
tects the connection system against
accidental contact. Made of a highly modified silicone
• The screened connector need not be rubber and protected by a thin walled
removed for over sheath testing. outer conductive screen connected
• The screened cable connector to earth, Raychem RSTI connectors are
exceeds CENELEC HD 629.1 S2 equally suited for indoor and outdoor Test rod
requirements, which includes BS; application. Ref. no.: RSTI-68TR; Length: 310 mm
VDE and other international RSTI-68TRL; Length: 460 mm
specifications. Supporting a wide application range, RSTI-68TRA; Kit includes
• Design fits 630 A and 1250 A bush- the design incorporates one body 2 short and 1 long testrod
ings (Interface “C1” and “C2”) as spec- and three stress cone adapters to
ified by EN 50180 and EN 50181. cover all cross-sections from 400 to
• The compact design supports the 800 mm2 and all voltage classes from
use of double “T” connections inside 12 to 42 kV. The overall and cut back
standard terminal boxes. dimensions are designed to take up
• The wide application range covers minimum space in the terminal box.
cable cross sections from 400 to
800 mm2. Raychem RSTI connectors are equipped
• Conductor connection with with a capacitive test point for deter-
mechanical lugs. mining whether the circuit is energised.
• Easily accessible rear plug with A conductive cap protects this test
capacitive test point. point.
• Complete kit including lugs facilitates
installation and storage.

Applications Single connection Live end seal

Material requested for 3 phases: Material requested for 3 phases:
1 x RSTI-x9xx (kit) 1 x RSTI-x9xx (kit)
1 x RSTI-68TP (Terminating plug kit)

196 24 209
116

79

372

max.
Ø see
table

Cross max. Ø
Section 12 kV 24 kV 42 kV
630 90 94 99
800 94 98 103
Design and construction

1 Screened body
7 A thin walled conductive outer screen
is permanently bonded to the silicone
8
rubber insulating material of the body.

2 Inner screen
9
A conductive inner layer, as a Faraday
cage around the mechanical lug,
prevents corona at rated voltage.
3
3 Mechanical lug
1 Specially designed mechanical lugs for
connecting either aluminium or copper
5 conductor cables.

4 Stress cone adapter

2 Relieves electrical stress at the point
where the cable screen is cut. The
insulated section, extending beyond
the wire shielding, provides a con-
venient point for over sheath testing.

5 Earthing eye and ground lead

Provides a connection point for earthing
the screen.

6 Threaded pin
A threaded pin together with a spring
washer (wave type) and hex nut ensure
a high performance electrical and
mechanical contact with the bushing.

7 Rear plug with test point

Removable rear plug with capacitive
4
test point.

8 Test point
The test point is used to determine
whether the circuit is energised;
alternatively it can be used for phasing.

9 Conductive end cap

Electrical screen and protection of the
rear end of the separable connector.

Note:
All applications as shown in the
brochure need to have a mechanical
support, based on the requirements
for dynamic short circuit.
Raychem screened, separable connection system RSTI-Large
for large cross sections 1250 A up to 42 kV

Technical data Cable insulation diameter range 28.9 - 59.0 mm

Connector cross-section range 400 - 800 mm2
Maximum system voltage 42 kV
Continuous current rating 1250 A*
Basic impulse level 200 kV
Partial discharge at 2 U0 < 2 pC
AC voltage withstand, 5 min 93.5 kV
DC voltage withstand, 15 min 125 kV
Thermal short circuit, 1 s 74.5 kA
Thermal short circuit, 3 s 43 kA
Dynamic short circuit 125 kA

* 1250 A is relevant for upgraded bushing C2 and cables with copper conductors

The adapters meet the international CENELEC HD 629.1 S2 specification

Selection table

Screened separable connection system 12 kV with mechanical lugs

Cross Diameter Reference number

Section Core insulation Conductor material
min max Al or Cu
mm2 mm mm
400 28.9 - 36.4 RSTI-3951
500 28.9 - 36.4 RSTI-3952
630 34.0 - 45.4 RSTI-3953
800 34.0 - 45.4 RSTI-3954

Screened separable connection system 24 kV with mechanical lugs

Cross Diameter Reference number

Section Core insulation Conductor material
min max Al or Cu
mm2 mm mm
400 34.0 - 45.4 RSTI-5951
500 34.0 - 45.4 RSTI-5952
630 39.1 - 59.0 RSTI-5953
800 39.1 - 59.0 RSTI-5954

Screened separable connection system 36 & 42 kV with mechanical lugs

Cross Diameter Reference number

Section Core insulation Conductor material
min max Al or Cu
mm2 mm mm

© Tyco Electronics EPP 1715 10/09

400 34.0 - 45.4 RSTI-6951
500 - 630 39.1 - 59.0 RSTI-6952
800 39.1 - 59.0 RSTI-6953

While Tyco Electronics and its affiliates referenced herein have made every reasonable effort to ensure the accuracy of the information contained in this catalog, Tyco Electronics cannot assure
that this information is error free. For this reason, Tyco Electronics does not make any representation or offer any guarantee that such information is accurate, correct, reliable or current.
Tyco Electronics reserves the right to make any adjustments to the information at any time. Tyco Electronics expressly disclaims any implied warranty regarding the information contained
herein, including, but not limited to, the implied warranties of merchantability or fitness for a particular purpose. Tyco Electronics' only obligations are those stated in Tyco Electronics’ Standard
Terms and Conditions of Sale. Tyco Electronics will in no case be liable for any incidental, indirect or consequential damages arising from or in connection with, including, but not limited to,
the sale, resale, use or misuse of its products. Users should rely on their own judgement to evaluate the suitability of a product for a certain purpose and test each product for its intended
application. In case of any potential ambiguities or questions, please don’t hesitate to contact us for clarification. Raychem, TE (logo) and Tyco Electronics are trademarks of the Tyco Electronics
group of companies and its licensors.

Energy Division – innovative and economical solutions for the electrical power industry: cable accessories, connectors &
fittings, insulators & insulation, surge arresters, switching equipment, lighting controls, power measurement and control.

Tyco Electronics Raychem GmbH

Energy Division
Finsinger Feld 1
85521 Ottobrunn/Munich, Germany

Phone: +49-89-6089-0
Fax: +49-89-6096345

http://energy.tycoelectronics.com