Transition Cable Joints | Heat Shrink Joints MV HV Cable Joints

Published 12 Mar 2018

Cable Terminations | Heat Shrink | Cold Shrink | Push-On | MV HV Medium & High Voltage

• Category: Nexans Power Cable Accessories Videos
• Product: Cable Joints
• Type: Heat Shrink Cable Joints
• Cable Joint Type: Transition Cable Joints
• Voltage Category: MV Medium Voltage | HV High Voltage
• Voltage Classes: 11kV/12kV | 24kV | 33kV/36kV
• Manufacturer: Nexans
• Uploaded By Chris Dodds – Thorne & Derrick Sales & Marketing Manager

Transition Cable Joints

Nexans GTM3.1 type MV cable joints are transition cable joints using heat shrink technology for jointing three core paper cables (PILC draining and non-draining) to three core polymeric cables (XLPE). Nexan’s GTM3.1 heat shrink cable joints are designed for use with paper insulated belted or screened cables with a common lead sheath and are fully screened, submersible and can be directly buried into cable trench.

Nexans cable joints are available in both heat shrink and cold shrink technologies for jointing and repairing medium/high voltage cables up to 33kV – single core and 3 core cable joints kits are available for MV-HV cables with paper or polymeric insulation, copper wire or copper screen and armoured/unarmoured construction. The cable joints accommodate both shearbolt cable connectors or crimp connectors.

➡ Paper Cables (eg PILC) + Polymeric Cables (eg XLPE) = Transition Cable Joint

High Voltage Cable Preparation

Essential to the safe and reliable performance of all MV HV Joints & Terminations is the standard of cable preparation achieved by the Jointer. Pictured here is an example of excellent workmanship where the XLPE and PILC cables are stripped and prepared ready for transition jointing in the cable trench.

Image: Dave Boyd – EHV Cable Jointer. Owner/Company Director of HV Cablepower Pty Ltd.

Transition Cable Joint

The installation Cable Jointing Video focuses on  ➡

• Installation of outer protection heat shrink tube with heat activated adhesive
• Cable preparation of XLPE PILC cables using cable jointers tools
• Removal of lead sheath cover from MV-HV cable with paper insulation
• Removal of paper insulation and heat shrinking of the oil barrier tube
• Installation and shrinking of the semi-conductive heat shrink tubes
• Application of stress control mastics to the cable joint
• Installation of semi-conductive heat shrink 3 core cable breakout
• Installation of insulating cable breakout
• Cable stripping measurement prior to installing mechanical shearbolt cable connectors
• Use of void filling mastics and sealing mastics to insulate the cable joint connectors
• Installation of dual wall screened tubes to the heat shrink cable joint
• Earthing of copper wire screens using constant force springs

MV HV Heat Shrink Three Core Transition Cable Joints

Up To 33kV

The following table enables the selection of Nexans GTM3.1 heat shrink cable joints for 11kV, 24kV and 33kV voltage cables:

➡ More Cable Jointing Videos | Heat Shrink Terminations | Heat Shrink Joints Straight | Separable Connectors | Cold Shrink Joints | Cold Shrink Terminations

THORNE & DERRICK Product Categories: Duct Seals | Cable Cleats | Cable Glands | Electrical Safety | Arc Flash Protection | Cable Jointing Tools | Cable Pulling | Earthing | Feeder Pillars | Cable Joints LV | Joints & Terminations MV HV 

Euromold

The Euromold range of Separable Connectors are suitable for the termination of power cables onto all MV-HV bushing interfaces:

View the complete range of Nexans Terminations | Joints | Connectors

Further Reading

• Cable Joints – Heat Shrink Joints MV HV Transition Cable Joint Size: 656.41 KB