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35kV cold shrinkable cable accessories

Utilizing the "elastic memory" of silicone rubber and advanced seamless expansion technology, the pre-manufactured termination and joint rubber components are pre-expanded within their elastic range and sleeved onto plastic supports. During installation, simply remove the plastic support strips and the rubber components will quickly shrink and tightly grip the cable. No heat required - safe, reliable, convenient and fast.

model:

Commodity name： 35kV cold shrinkable cable accessories

Category:

Cold shrink cable accessories

Email:

laicaieven@gmail.com

Phone:

+86 17710715268

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Product model description

26/35kV cold shrink termination and straight joint

26/35kV Three-Core Cold Shrink Indoor Termination

Matching Accessories for 26/35kV Three-Core Cold Shrink Indoor Termination

26/35kV Three-Core Cold Shrink Outdoor Termination

Matching Accessories for 26/35kV Three-Core Cold Shrink Outdoor Termination

26/35kV Three-Core Cold Shrink Termination Structure Diagram

26/35kV Three-Core Cold Shrink Joint Structure Diagram

26/35kV Three-Core Cold Shrink Joint Accessory Kit

Product standard

GB/T 12706.4-2020: Test Requirements for Power Cable Accessories with Rated Voltages from 6kV (Um=7.2kV) to 35kV (Um=40.5kV) – Part of Extruded Insulation Power Cables and Accessories (1kV (Um=1.2kV) to 35kV (Um=40.5kV)).
T/CEC 118-2016: Technical Specification for Cold Shrink Cable Accessories with Rated Voltages up to 35kV (Um=40.5kV).

Product features

Cold shrink technology

Reliable insulation

Using high-quality liquid silicone rubber specifically designed for accessories, with excellent electrical properties, corrosion resistance and aging resistance, combined with sufficient design margin, ensures more reliable insulation performance and longer service life.

Technical characteristics

Our cable termination features an integrated design where the stress control component is bonded with the main insulation, creating a seamless interface. The optimized geometric stress cone structure effectively controls electric field distribution, minimizing field intensity and stress concentration. With extended creepage distance and the inherent hydrophobicity of silicone rubber material, the product demonstrates superior performance in high-altitude, humid, extremely cold, and heavily polluted environments.

The joint utilizes thickened main insulation and an injection-molded outer shielding structure to ensure excellent EMI shielding performance and long-term stability. Our triple-seal waterproofing system (at both joint ends, inner sheath, and outer sheath) provides exceptional moisture resistance. We have also developed specialized joint variants including injection-molded waterproof type, fire-resistant type, and explosion-proof type, significantly expanding the product's application scope across various demanding industrial environments.

Product specifications

26/35kV Cold Shrink Cable Termination and Straight Joint Product Specification Sheet

Cable Type	Model No.	Product Name	Suit Cable’s Sectional Area(mm²)
35kV 3-Core Cable	ZLN35kV-3/1	3-Core Cold Shrink Indoor Termination	35-95
	ZLN35kV-3/2		120-185
	ZLN35kV-3/3		240-400
35kV 3-Core Cable	ZLW35kV-3/1	3-Core Cold Shrink Outdoor Termination	35-95
	ZLW35kV-3/2		120-185
	ZLW35kV-3/3		240-400
35kV 3-Core Cable	ZLJ35kV-3/1	3-Core Cold Shrink Straight Joint	35-95
	ZLJ35kV-3/2		120-185
	ZLJ35kV-3/3		240-400
35kV Single-Core Cable	ZLN15kV-1/1	Single-Core Cold Shrink Indoor Termination	35-95
	ZLN35kV-1/2		120-185
	ZLN35kV-1/3		240-400
35kV Single-Core Cable	ZLW35kV-1/1	Single-Core Cold Shrink Outdoor Termination	35-95
	ZLW35kV-1/2		120-185
	ZLW35kV-1/3		240-400
35kV Single-Core Cable	ZLJ35kV-1/1	Single-Core Cold Shrink Straight Joint	35-95
	ZLJ35kV-1/2		120-185
	ZLJ35kV-1/3		240-400

Main technical parameters

Test Project	Test Voltage (kV)	Standard Requirements	Test Result
AC Withstand Voltage Test	117	No flashover or breakdown at 117kV for 5 minutes	Passed
DC Withstand Voltage Test	-104	No flashover or breakdown at -104kV for 15 minutes	Passed
AC Withstand Voltage Test (Rain)	104	No flashover or breakdown at 104kV for 1 minute under simulated rain conditions	Passed
Partial Discharge Test (Room Temp.)	45	Discharge magnitude ≤10pC at 45kV (background: 2.3pC)	2.3pC
Impulse Withstand Test (High Temp.)	200	10 positive/negative impulses each at 95–100°C conductor temp., no flashover/breakdown	Passed
Load Cycle Test (Air, 60 cycles)	65	30 load cycles (joints: 30 cycles) at 65kV, conductor heated to 95–100°C in air	Passed
Load Cycle Test (Water, 30 cycles)	65	30 load cycles at 65kV, conductor heated to 95–100°C in water	Passed
Immersion Test	/	Outdoor terminal submerged 0.03±0.02m below water, 10 load cycles at 95–100°C	Passed
Partial Discharge Test (High Temp.)	45	Discharge magnitude ≤10pC at 45kV (background: 2.4pC), tested at 95–100°C and room temp.	2.4pC
Partial Discharge Test (Room Temp.)	45	Discharge magnitude ≤10pC at 45kV (background: 2.3pC)	2.3pC
Impulse Withstand Test	200	10 positive/negative impulses each, no flashover or breakdown	Passed
AC Withstand Voltage Test	65	No flashover or breakdown at 65kV for 15 minutes	Passed
Short-Circuit Thermal Stability (Conductor)	50.5kA	No visible damage after 2 short circuits at 50.5kA for 8 seconds	Passed
Short-Circuit Dynamic Stability	178.6kA	No visible damage after 1 short circuit at 178.6kA for 1 second	Passed
Impulse Withstand Test (Room Temp.)	200	10 positive/negative impulses each, no flashover or breakdown	Passed
AC Withstand Voltage Test (15min)	65	No flashover or breakdown at 65kV for 15 minutes	Passed
Humidity Test (Indoor, 300h)	32.5	No flashover, breakdown, tripping, or significant damage after 300 hours	Passed
Salt Spray Test (Outdoor, 1000h)	32.5	No flashover, breakdown, tripping, or significant damage after 1000 hours	Passed
Visual Inspection	After all tests	No cracks, deformation, leakage traces, or electrical erosion; sealed parts intact; no insulation leakage	Passed

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Cold shrink cable accessories

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