Woer Incorporation

PO Non-shrinkable Tubing
MV Accessories Heat Shrinkable IEC / GB Standard

Heat Shrinkable MV Cable Accessories Terminations & Straight‑Through Joints

High‑performance heat shrinkable cable accessories for medium voltage systems (6kV to 30kV). Compliant with IEC60502.4 and GB12706.4. Available for 1‑core and 3‑core cables with advanced stress control, anti‑tracking, and dual‑earth wire technology.

Up to 18/30kV rating (25‑630mm²)
Terminations & straight joints
3‑core finger‑stress relief (patented)
Dual‑earth wire – easier testing, safer operation

Key Features & Innovations

Engineered for reliability and easy installation

Advanced Stress Control

High-pressure three‑core breakout with triangular pad cone (patented) eliminates stress concentration at branch points and prevents cracking during installation.

Optimised Electrical Performance

Stress control tube formula improved to match cable volume resistivity and dielectric constant. Anti‑tracking tube provides excellent creepage resistance and flame retardancy.

Dual‑Earth Wire Technology

Separate earthing for steel armour and copper shielding. Allows easy fault detection: ground‑to‑ground resistance tests outer sheath integrity; earth‑wire‑to‑shield tests inner layer condition.

Improved Installation Process

Advanced dual‑earth wire craft restores cable armour and shield grounding after installation, simplifying testing. Verified by Wuhan High Voltage Research Institute.

Order Reference

Terminations and straight‑through joints for 3(1) core cables – indoor/outdoor (RSN(W)Y) and joints (RSJY)

Cable range: 25‑630 mm² (different voltage classes)

Type / Order Number Name Cable Range (mm²)
6.35/11kV – Terminations (3-core)
6.35/11kV RSN(W)Y -3(1)/1 Termination for 6.35/11kV 3(1) cores (indoor/outdoor) 25‑50 mm²
6.35/11kV RSN(W)Y -3(1)/2 Termination for 6.35/11kV 3(1) cores (indoor/outdoor) 70‑120 mm²
6.35/11kV RSN(W)Y -3(1)/3 Termination for 6.35/11kV 3(1) cores (indoor/outdoor) 150‑240 mm²
6.35/11kV RSN(W)Y -3(1)/4 Termination for 6.35/11kV 3(1) cores (indoor/outdoor) 300‑400 mm²
6.35/11kV RSN(W)Y -3(1)/5 Termination for 6.35/11kV 3(1) cores (indoor/outdoor) 500‑630 mm²
6.35/11kV – Straight Through Joints
6.35/11kV RSJY -3(1)/1 Straight through joint for 6.35/11kV 3(1) cores 25‑50 mm²
6.35/11kV RSJY -3(1)/2 Straight through joint for 6.35/11kV 3(1) cores 70‑120 mm²
6.35/11kV RSJY -3(1)/3 Straight through joint for 6.35/11kV 3(1) cores 150‑240 mm²
6.35/11kV RSJY -3(1)/4 Straight through joint for 6.35/11kV 3(1) cores 300‑400 mm²
6.35/11kV RSJY -3(1)/5 Straight through joint for 6.35/11kV 3(1) cores 500‑630 mm²
8.7/15kV – Terminations (3-core)
8.7/15kV RSN(W)Y -3(1)/1 Termination for 8.7/15kV 3(1) cores (indoor/outdoor) 25‑50 mm²
8.7/15kV RSN(W)Y -3(1)/2 Termination for 8.7/15kV 3(1) cores (indoor/outdoor) 70‑120 mm²
8.7/15kV RSN(W)Y -3(1)/3 Termination for 8.7/15kV 3(1) cores (indoor/outdoor) 150‑240 mm²
8.7/15kV RSN(W)Y -3(1)/4 Termination for 8.7/15kV 3(1) cores (indoor/outdoor) 300‑400 mm²
8.7/15kV RSN(W)Y -3(1)/5 Termination for 8.7/15kV 3(1) cores (indoor/outdoor) 500‑630 mm²
8.7/15kV – Straight Through Joints
8.7/15kV RSJY -3(1)/1 Straight through joint for 8.7/15kV 3(1) cores 25‑50 mm²
8.7/15kV RSJY -3(1)/2 Straight through joint for 8.7/15kV 3(1) cores 70‑120 mm²
8.7/15kV RSJY -3(1)/3 Straight through joint for 8.7/15kV 3(1) cores 150‑240 mm²
8.7/15kV RSJY -3(1)/4 Straight through joint for 8.7/15kV 3(1) cores 300‑400 mm²
8.7/15kV RSJY -3(1)/5 Straight through joint for 8.7/15kV 3(1) cores 500‑630 mm²
12/20kV – Terminations (3-core)
12/20kV RSN(W)Y -3(1)/1 Termination for 12/20kV 3(1) cores (indoor/outdoor) 25‑50 mm²
12/20kV RSN(W)Y -3(1)/2 Termination for 12/20kV 3(1) cores (indoor/outdoor) 70‑120 mm²
12/20kV RSN(W)Y -3(1)/3 Termination for 12/20kV 3(1) cores (indoor/outdoor) 150‑240 mm²
12/20kV RSN(W)Y -3(1)/4 Termination for 12/20kV 3(1) cores (indoor/outdoor) 300‑400 mm²
12/20kV RSN(W)Y -3(1)/5 Termination for 12/20kV 3(1) cores (indoor/outdoor) 500‑630 mm²
12/20kV – Straight Through Joints
12/20kV RSJY -3(1)/1 Straight through joint for 12/20kV 3(1) cores 25‑50 mm²
12/20kV RSJY -3(1)/2 Straight through joint for 12/20kV 3(1) cores 70‑120 mm²
12/20kV RSJY -3(1)/3 Straight through joint for 12/20kV 3(1) cores 150‑240 mm²
12/20kV RSJY -3(1)/4 Straight through joint for 12/20kV 3(1) cores 300‑400 mm²
12/20kV RSJY -3(1)/5 Straight through joint for 12/20kV 3(1) cores 500‑630 mm²
18/30kV – Terminations (3-core)
18/30kV RSN(W)Y -3(1)/1 Termination for 18/30kV 3(1) cores (indoor/outdoor) 25‑50 mm²
18/30kV RSN(W)Y -3(1)/2 Termination for 18/30kV 3(1) cores (indoor/outdoor) 70‑120 mm²
18/30kV RSN(W)Y -3(1)/3 Termination for 18/30kV 3(1) cores (indoor/outdoor) 150‑240 mm²
18/30kV RSN(W)Y -3(1)/4 Termination for 18/30kV 3(1) cores (indoor/outdoor) 300‑400 mm²
18/30kV RSN(W)Y -3(1)/5 Termination for 18/30kV 3(1) cores (indoor/outdoor) 500‑630 mm²
18/30kV – Straight Through Joints
18/30kV RSJY -3(1)/1 Straight through joint for 18/30kV 3(1) cores 25‑50 mm²
18/30kV RSJY -3(1)/2 Straight through joint for 18/30kV 3(1) cores 70‑120 mm²
18/30kV RSJY -3(1)/3 Straight through joint for 18/30kV 3(1) cores 150‑240 mm²
18/30kV RSJY -3(1)/4 Straight through joint for 18/30kV 3(1) cores 300‑400 mm²
18/30kV RSJY -3(1)/5 Straight through joint for 18/30kV 3(1) cores 500‑630 mm²

Note: RSN(W)Y = indoor/outdoor termination; RSJY = straight‑through joint. All products meet IEC60502.4 and GB12706.4.

Dual‑Earth Wire Process Characteristics

① Steel armour earth wire to ground
— detects damage to outer cable sheath
② Resistance between two earth wires
— detects damage to inner cable layer
③ Copper earth wire shield to ground
— detects damage to both inner and outer sheaths

This advanced design allows simple field testing after installation, ensuring long‑term reliability and safety.