EPDM cold shrink cable joints


EPDM cold shrink tube is a series of open-ended, tubular rubber sleeves, which are factory expanded and assembled onto a removable core. Cold shrink cable joints is supplied for field installation in this pre-stretched condition. The core is removed after the tube has been positioned for installation over an in line connection, terminal lug, etc., allowing the tube to shrink and form a waterproof seal. Cold shrink cable joints is made of EPDM rubber, which contains no chlorides or sulphurs. Various diameter sizes will cover a range of 1000 volt cables, copper and aluminum conductors.

Telsto Cold Shrink Splice Cover Kits are designed to be an easy-to-install, safe and fast method of covering splices on Spacer Cable. The tubes are open-ended rubber sleeves which are factory-expanded and assembled onto removable plastic cores. After the tube has been positioned for installation over an in-line splice, the core is removed, thus allowing the tube to shrink and seal the splice.

*All required components and instructions are provided in one kit
*Simple, safe installation, requires no tools
*Accommodate covered cables with various outside diameters
*No torches or heat are required
*Significantly reduces the time required to cover splices by traditional techniques
*Maintains the physical and electrical integrity of the covered conductor
*Includes partial tension compression sleeve


1)Excellent weather resistance, ultraviolet aging resistance and higher embrittlement resistance than heat shrink tubing
2)More resistant to slab and prick, abrasion, acid and alkali than silicone cold shrink tubing

3)Simultaneously expands and shrinks with workpieces without clearances, seals tight in harsh environment

4)Stably sealing the workpieces in windy environment

5)Well suited for cable less than 1KV

6)Seals tight, retains its resiliency and pressure even after prolonged years of ageing and exposure.

7)Simple , safe installation, requires no tools or special training. No torches or heat work required

8)Diameter shrinkage:≥50%

9)Sealing class IP68

Technical Data

PropertiesTypical DataTest method
HS49 AASTM D 2240
Tensile Strength11.8 MPaGB/T 528
Elongation at break641%GB/T 528
Tear Strength38.6 N/ mmASTM D 624
Dielectric Strength19.1 kV/mmASTM D 149
Dielectric Constants590℃(in water) 7 days(1940F)5.6
Anti-enzyme (bacteria)The 28 day exposure without growthASTM G-21
UV ResistantUV irradiation for 2000 hours without agingASTM G-53

Quick Details

Place of Origin:Shanghai, China (Mainland)
Brand Name:Telsto
Type:Insulation Sleeving
Application:Low Voltage
Rated Voltage:1KV
Tensile Strength:9.8MPa
Dielectric Strength:19.1 kV/mm ASTM D 149
Diameter shrinkage:≥50%
Elongation at break:641% GB/T 528
Tear Strength:aASTM D 624 38.6 N/ mm