Shenzhen Woer Electric Technology Co., Ltd

Heat Shrink Protective Tube

Manufactured from cross linked polyolefin.

Providing outer sealing protection for power cable joints up to 42kV.

Used in 1kV cable joints and terminations to provide electrical insulation (Φ50 and below).

Outstanding abrasion and chemical resistance.

Inner coated with adhesive at both ends. Tubes inner coated with adhesive at full length are available upon customer request. Shrink temperature: start at 90℃ , and fully recovered at 130℃ Color: Black, red, yellow, blue, green(φ50 and below); black only(above φ50). Other colors are available upon customer request.

Specification of Heat Shrink Protective Tube


Selection Table

Spec.As Supplied/mmAfter  Recovered/mmStandard Cut Length /mmStandard Continuous Length (m/roll)
Inner Diameter MinWall Thickness (±0.2)Inner Diameter MaxWall Thickness (±0.3)
WRSHG-10/5100.551.1275-100025
WRSHG-15/7150.571.1275-100025
WRSHG-20/9200.691.5275-100025
WRSHG-30/11300.7111.6275-100025
WRSHG-35/13350.7131.8275-100025
WRSHG-45/17450.8172.0275-100025
WRSHG-50/23501.1232.5800-120025
WRSHG-60/23601.0232.5800-120025
WRSHG-85/30851.0302.8800-120025
WRSHG-100/391001.1393.0800-120015
WRSHG-120/451201.1453.0800-120015
WRSHG-140/491401.2493.6800-120015
WRSHG-160/571601.2573.6800-1200/
WRSHG-180/611801.3614.0800-1200/
WRSHG-200/702001.5704.4800-1200/
WRSHG-230/722201.4724.4800-1200/
WRSHG-250/872501.6874.4800-1200/
WRSHG-300/1002901.41004.4800-1200/


Technical Data

PropertyTest MethodStandard Value
Tensile StrengthASTM-D-638≥ 12MPa
Elongation at BreakASTM-D-638≥ 300%
Volume ResistivityIEC 60093≥1x1013Ω.cm
Dielectric StrengthIEC 60243≥15kV/mm
Brittle TemperatureISO 974-40℃
Heat Shock160℃,4hNo Crack
Water Absorption(23±2)℃ 24hISO 62≤0.1%
Hardness(Shore A)ISO 868≥80
Longitudinal ShrinkageASTM-D-2671≤5%
EccentricityASTM-D-2671≤35%(Φ200 and below)
≤55%(Above Φ200)


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Address: Room 301, Building 6-1, Woer Industrial Plant, No. 53, Qingsong Road, Zhukeng Community, Longtian Street, Pingshan District, Shenzhen, China
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