MV Heat Shrink Joint | XLPE Polymeric Cables Unarmoured with Copper Wire or Copper Tape Screen up to 24kV

MV Heat Shrink Joint | Nexans 17-24JTS1 W

Heat Shrink Cable Joints

Nexans 17-24JTS1 W

Cable Joints | Medium Voltage Cables | Unarmoured Single Core Polymeric Cables With Copper Wire Or Copper Tape Screen

Nexans straight (inline) cable joints are installed onto MV Medium Voltage power cable systems to connect, repair or extend electricity distribution networks in 11kV 17.5kV 24kV 33kV and 42kV voltage classes – this includes jointing MV cables of single-core and 3-core construction with Paper (PILC) or Polymeric (XLPE EPR) insulation, armoured/unarmoured with copper tape or wire screen and stranded copper or aluminium type conductors.

The Nexans 17-24JTS1 W heat shrinkable MV straight joints are designed for unarmoured, plastic insulated cables with copper wire or copper tape screen, to accommodate either crimped or mechanical connectors up to Umax 24kV cables and 25-400sqmm conductors.

The cable joints form part of the Nexans range of HV joints and terminations offering a choice of conductor core connection : deep indent crimping, hexagonal restraint or shearbolt connectors and the choice of the material technologies : cold applied (Slip-on) or heat shrinkable.

17JTS1 W (CS) – 24JTS1 W (CS) Heat Shrink MV Straight Joints

Heat Shrink

17-24JTS MV heat shrink joint is the new high performance, compact and easy to install joint by Nexans for underground (cable trench direct burial in cable duct), or in air (cable tunnels and substation basement located to cable tray/ladder) applications.  A single cable joint body with all the electrical functions integrated –  Nexans “TRIPLE GT125” is an integrated stress control field, insulating and conductive heat shrink tube, which can withstand high voltage applications for application up to 24kV cables.

A double layer pad with conductive rubber inside and HK orange mastic outside ensure a Faraday cage and smooth the effect of the electrical field and of the voltage gradient in the connector area of the heat shrink joint – joints should only ever by installed by a Competent & Trained Jointer using approved cable jointing tools such as Alroc.

The electrical continuity of the cable screen is ensured by the cable jointer installing a tinned copper stocking with constant force springs in case of copper wire/tape screen (CS type) or with a standard tinned copper tape plus an earthing ferrule in case of only copper wire screen (W type).

The outer sheath or cable jacket of the medium voltage cable is restored with heavy wall adhesive lined tubing. Conductors can be connected using crimp splices and tools from Cembre – MC types of cable joint are supplied with Nexans GPH mechanical connectors.

MV Heat Shrink Cable Joint

Technical Data

The below table shows the range of MV Heat Shrink Joints for unarmoured single core polymeric cables with copper wire or copper tape screen up to 24kV.

– 17JTS Joint type tested with BIL at 95kV, PD at 2Uo (≤ 10 pC)
– 24JTS Joint type tested with BIL at 150kV, PD at 2Uo (≤ 10 pC)

➡ The below video shows the modern generation of MV Heat Shrink Joint which has been developed by Nexans for the UK utility and contracting industry – the primary application of the JTS Joint is for the jointing of 11kV BS7870 Triplex type medium voltage cables. Cable joints are available medium voltage power cable networks up to 33kV in both cold shrink and heat shrink technology.

MV Straight Joints CENELEC HD 629.1 S2 IEC 60502-4

For MV cables with additional vapour screen please contact T&D	CS type joint is suitable both cables with copper wire or copper tape screen	W type is supplied with standard metallic tape design and earth ferrule for copper wire screen cable	For other MV cable types please contact T&D	Please contact T&D when requiring cable joints for same type cables with different cross sections	Various earth connection design solutions exist for armouring. For exact details please contact T&D	Cable joint design accommodates various cable connector/ ferrule types	Various earth connection kits are available for screen connection. For exact details contact T&D

Nexans MONOi heat shrink cable terminations are a one-piece co-extruded anti-track (red) and stress control tube for connection and terminating 11kV BS7870-4-10 Triplex Cables 95-300sqmm into medium voltage electrical equipment.

Thorne & Derrick have an International Distribution Agreement with Nexans Power Accessories UK and are their main stockists and suppliers for their range of Heat Shrink Joints & Terminations up to 66kV.

Data Sheets

• MV Heat Shrink Joint XLPE Polymeric Cables Unarmoured with Copper Wire or Copper Tape Screen up to 24kV
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• JTS Joints – Technical Specifications Approvals Testing Capability
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