Protective Tube Cable Joint Protection Rapid Shrink

WRSHG Heat Shrinkable Protective Tube

Excellent insulation and rapid shrink. Mainly used for the outer protection of cable straight joints. Made from cross‑linked polyolefin, offering robust mechanical and electrical protection for medium voltage cable accessories.

Material: cross‑linked polyolefin

Operating temperature: -45°C to 105°C

Shrink: starts at 100°C, fully at 130°C

Color: black

Dimensions & Packaging

As supplied inner diameter, after recovery ID, recovered wall thickness, and standard length (custom cut available)

Part No.	As supplied ID min (mm)	After recovery ID max (mm)	Recovered wall thickness (mm)	Standard length (mm)
WRSHG-10/5	10	5	1.2	275-1000
WRSHG-15/7	15	7	1.3	275-1000
WRSHG-20/8	20	8	1.7	275-1000
WRSHG-30/11	30	11	1.8	275-1000
WRSHG-35/13	35	13	2.0	275-1000
WRSHG-40/17	40	17	2.2	275-1000
WRSHG-50/22	50	22	2.5	800-1200
WRSHG-60/25	60	25	2.5	800-1200
WRSHG-80/30	80	30	2.9	850-1200
WRSHG-100/39	100	39	3.0	850-1200
WRSHG-120/45	120	45	3.0	850-1200
WRSHG-140/56	140	56	3.5	850-1200
WRSHG-160/58	160	58	3.5	850-1200

*Standard length range can be cut to specific requirements. Contact us for custom lengths.

Technical Data

Electrical and mechanical properties

Material Specifications

Property	Test Method	Standard Value
Tensile strength (MPa)	ASTM D638	≥13
Elongation at break (%)	ASTM D638	≥300%
Tensile strength after aging (MPa)	ASTM D2671 / 120°C,168h	≥11
Elongation after aging (%)	ASTM D2671 / 120°C,168h	≥240%
Volume resistance (Ω·cm)	ASTM D2303	≥1×10¹⁴
Dielectric strength (kV/mm)	IEC 243	≥20
Longitudinal shrinkage (%)	—	≤10
Eccentricity (%)	ASTM D267	≤30
Water absorption (%)	ISO 62	≤0.1

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Excellent insulation and rapid shrink · Ideal for outer protection of cable straight joints.