Cold Shrink Cable Joints

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Cold Shrink Cable Joints - 3M LC

Cold Shrink Cable Joints – 3M LC

Cold Shrink Joint for 3 Core Low Voltage Polymeric Cables Up To 3.3kV

3M Cold Shrink Cable Joints form part of the LC Series of low voltage cable joints that are suitable for jointing polymeric (XLPE EPR) 600/1000V cable and unscreened 3 Core XLPE 1.9kV/3.3kV power cables with SWA (steel wire armour) to BS5467.

Cold Shrink joints are compatible with copper or aluminium phase conductors including cross sectional area of 1.5-300sqmm (multi-core) and 50-1000sqmm (single-core) – with or without lead sheath/jacket.

Also suitable to joint marine and offshore EPR insulated cable according to BS6883 with galvanised wire braid to provide power to emergency lighting units, shut down control systems, gas detectors, alarm systems, fire pump systems, social areas, control rooms, computer suites and accommodation modules.

Specified due to the flexibility and workability of the compact, smooth profile cable joint for use in limited working and confined space locations in manholes.

Stranded copper conductors can be effectively terminated using either Cembre crimp connectors and associated crimping tools or shearbolt cable connectors.

Low voltage cable joints utilise 3M tool free cold shrink technology without requirement for heat, Jointers gas torches or additional adhesives.

Specialist application resin cable joints are also available for zero halogen, fire resistant, hydrocarbon resistant and hazardous area locations according to the ATEX Directive (Zone 1 & Zone 2).

3M LC series of cable joints are designed for use with selected multipair instrumentation cables and flexible or trailing cables.

3M cold shrink range is an effective alternative to traditional resin based or heat shrink methods and can be used in indoor, outdoor, overhead, or use in cable trays. Additional mechanical protection may be required for direct burial of the cable joint.

The cold shrink outer protection tube provides a reliable environmental seal and is resistant to acid, alkalis, ozone and UV light.

3M Cold Shrink Cable Joints – FeaturesATEX Cable Joints

  • Simple installation – no special tools required
  • No Jointer gas torches or heat required
  • Safe installation – alternative to conventional resin jointing method
  • Cold shrink accommodates a wide range of cable sizes
  • Waterproof seal
  • Rated up to and including 1.9/3.3kV
  • Also Cold Shrink Cable Terminations LV Up To 3.3kV

Blog: ATEX & Cold Shrink | Certification & Working In Zone 1 / Zone 2 Hazardous Areas

3M Cold Shrink Cable Joints – Kit Contents

3M LC cold shrink inline cable joints contain the following:

  • Cold shrink pre stretched outer tube
  • Self amalgamating insulation tape – 3M Scotch 23
  • Armour/earth connection components for wire armoured/wire braided cables
  • Full Jointers installation instructions

Technical Specification – Multicore Cables

Following table enables selection of Cold Shrink joints for power cables:

3M Cold Shrink Cable Joint Part Number Cross Sectional Area (mm²) Cable Diameter Range (mm) Cable Armour Range (mm)
Single Core 1kV Two Core 1kV Three Core 1kV  Four Core 1kV Three Core 3.3kV
3M LC1 N/A 1.5 – 4 1.5 – 4 1.5 – 2.5 N/A 16.1 – 33.1 9 – 15
3M LC2 50 – 95 6 – 10 6 – 10 4 – 6 N/A 16.1 – 33.1 14 – 22
3M LC3 120 – 150 16 – 50 16 – 25 10 – 16 N/A 16.1 – 33.1 18.5 – 29
3M LC4 185 – 400 70 – 120 35 – 70 25 – 50 16 – 50 24.9 – 56.4 23.5 – 37
3M LC5 500 – 630 150 -185 95 – 150 70 – 120 70 – 150 37.8 – 84.3 31 – 50
3M LC6 800 – 1000 240 – 300 185 – 240 150 -185 185 – 240 37.8 – 84.3 44 – 70
3M LC7 N/A N/A 300 240 – 300 300 62.5 – 128.5 44 – 70

Note: For cables with more than 4 cores, please use the cable diameter and armour diameter to select, taking into account the space needed to install the chosen connectors.

TECHNICAL SPECIFICATION – Multipair cables

Following table enables selection of Cold Shrink joints for instrumentation cables:

3M Cold Shrink Cable Joint Part Number Cable Size  Cable Diameter Range (mm) Cable Armour Range (mm)
LC1 2 Pair 1.5mm² 16.1 – 33.1 9 – 15
LC2 4 Pair 1.5mm² 16.1 – 33.1 14 – 22
LC3 7 Pair 2.5mm² 16.1 – 33.1 18.5 – 29
LC5 24 Pair 1.5mm² 37.8 – 84.3 31 – 50

Note: For other Multipair combinations, please contact us for help with selection.

3M LC cold shrink tubes and insulation tapes have a 5 year shelf life from the date of manufacture when stored between 10-27ºC at <75% relative humidity.

3M Cold Shrink cable jointing kits offer faster, safer and simpler installations without the dangers and hassles of “hot-working” – no naked flames, no gas torches, no ignition tooling, no “hot-work” permit applications.

 ➡ Should you require customer service or technical support on the selection or specification of LV MV HV Cable Accessories please contact us – view the full range of 3M Cold Shrink Cable Joints below.

For LV Low Voltage Cables | Cold Shrink Cable Terminations MV | Cold Shrink Cable Abandonment | Cold Shrink Tubes

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