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Medium Voltage Cable Accessory 15kv Cold Shrinkable Outdoor Termination

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6~35kv Cable Accessories Classification Introduction
4E-NLS Cold Shrinkable Indoor Termination, 4E-WLS Cold Shrinkable Outdoor Termination, 4E-JLS Cold Shrinkable Joint
4E-NLS cold shrinkable indoor termination, 4E-WLS cold shrinkable outdoor termination, 4E-JLS cold shrinkable middle joint are mainly composed of prefabricated body, terminations (indoor and outdoor) or connecting tube (middle joint) cold shrinkable multi-core fingerstall ( supporting multi-core cable), and cold shrinkable insulation tubes and relative colormetric tube (indoor and outdoor termination). The prefabricated body stress cone and insulating body are using plastic injection molding of liquid silicone rubber, which has long-term stability of the package tight force and uniform electric field capacity. Always keep a suitable radial pressure to the cable body. The interface characteristic is good without respiration creepage breakdown when cable runs. The terminations or connecting tube meet cable core material requirements or users' requirements to ensure the protection of cable insulation and waterproof.

Main structure features:
Excellent raw-material: prefabricated body is composed of high quality liquid silicone, which has excellent insulation, elongation, and breakdown properties, small residual deformation after expansion.
Cold shrinkable structure: using latest expansion equipment and expansion support tube to ensure product expand without damage.
Easy installation: using cold shrinkable expansion structure, there's no need special training, the labor is low due to convenient installation.

6~35kV Cold Shrinkable Outdoor Termination

Medium Voltage Cable Accessory 15kv Cold Shrinkable Outdoor Termination

  1. Lug 2. Marking tube 3. Cable insulation 4. Cold shrinkable termination 5. Stress cone 6. Insulation screen layer 7. Copper screen 8. Cold shrinkable protective tube 9. Three fingered tube 10. Copper braid wire

Size mm 8.7/15kV 12/20kV 18/30kV 26/35kV
L 252 370 370 450
A ≥800 ≥950 ≥950 ≥1300


Voltage
Section number
1 2 3 4
8.7/15 25-50 70-120 150-240 300-400
12/20,18/30,26/35 50-95 120-185 240-400 500-630


6~35kV Cold Shrinkable Indoor Termination

Medium Voltage Cable Accessory 15kv Cold Shrinkable Outdoor Termination

  1. Lug 2. Marking tube 3. Cable insulation 4. Cold shrinkable termination 5. Stress cone 6. Insulation screen layer 7. Copper screen 8. Cold shrinkable protective tube 9. Three fingered tube 10. Copper braid wire 11. Cable

Size mm 8.7/15kV 12/20kV 18/30kV 26/35kV
L 180 288 288 370
A ≥700 ≥850 ≥850 ≥1200


Voltage
Section number
1 2 3 4
8.7/15 25-50 70-120 150-240 300-400
12/20,18/30,26/35 50-95 120-185 240-400 500-630


6~35kV Cold Shrinkable Middle Joint

Medium Voltage Cable Accessory 15kv Cold Shrinkable Outdoor Termination

  1. Copper screen 2. Constant force spring 3. Stress cone 4. Connecting tube 5. Prefabricated main body 6. Copper net 7. Braid wire 8. Armour tape 9. Armour 10. Cable

Size mm 8.7/15kV 12/20kV 18/30kV 26/35kV
L 378 430 430 488
A 1300 1600 1600 1800


Voltage
Section number
1 2 3 4
8.7/15 25-50 70-120 150-240 300-400
12/20,18/30,26/35 50-95 120-185 240-400 500-630


6~35KV cold shrinkable indoor, outdoor termination, and joint electrical performance parameters

Rated voltage UO/U (Um) kV 6/10(12.5) 8.7/15(17.5) 26/35(40.5) Railway Uo=27.5 Test result
5min frequency voltage test no flashover, without breakdown under 4.5Uo no flashover, without breakdown
1min frequency voltage under rain test
no flashover, without breakdown under 4Uo
no flashover, without breakdown
Partial discharge at room temperature test discharge volume under 1.73Uo ≤10PC ≤1.6pC
Constant voltage load cycle in the air test heated 2.5Uo and conductor to a temperature to 95-100°C three times, no flashover, without breakdown no flashover, without breakdown
Partial discharge at high temperature test heated cable conductor to 95-100°C, discharge volume under 1.73Uo ≤10PC ≤1.6pC
Partial discharge at room temperature test discharge volume under 1.73Uo ≤10PC ≤1.6pC
Impulse voltage at high temperature test 75kV 95kV 200kV 25kV no flashover, without breakdown
heated cable conductor to 95-100°C,both positive and negative polarity 10 times, no flashover, without breakdown
Constant voltage load cycle test heated 2.5Uo and conductor to a temperature to 95-100°C sixty times, no flashover, without breakdown no flashover, without breakdown
Partial discharge at high temperature test heated cable conductor to 95-100°C, discharge volume under 1.73Uo ≤10PC ≤1.6pC
Partial discharge at room temperature test discharge volume under 1.73Uo ≤10PC ≤1.6pC
Impulse voltage test 75kV 95kV 200kV 250kV no flashover, without breakdown
both positive and negative polarity 10 times, no flashover, without breakdown
15min frequency voltage test no flashover, without breakdown under 2.5Uo no flashover, without breakdown
Outdoor termination salt spray test 1.25Uo,1000h, no flashover, without breakdown, no significant electrical corrosion and mechanical damage no flashover, without breakdown
Indoor termination wet test 1.25Uo, 300h, no flashover, without breakdown, no significant electrical corrosion and mechanical damage no flashover, without breakdown


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