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Medium Voltage Cable Accessories:
6-35kV Cold Shrinkable Cable Accessories:
4E-NLS cold shrink indoor termination, 4E-WLS cold shrink outdoor termination, 4E-JLS cold shrink middle joint are mainly composed of prefabricated body, terminations (indoor and outdoor) or connecting tube (middle joint) cold shrink muti-core fingerstall (supporting muti-core cable), and cold shrink insulation tubes and relative colorimetric tube (indoor and outdoor termination). The prefabricated body stress cone and insulating body are using plastic injuction 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 shrink structure: using latest expansion equipment and expansion support tube to ensure product expand without damage.
Easy installation: using cold shrink expansion structure, there’s no need special training, , the labor is low due to convenient installation.
6-35KV cold shrink indoor,outdoor terminations, and joints 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 95-100C,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 | 75 kV | 95 kV | 200 kV | 250 kV | 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 | 75 kV | 95 kV | 200 kV | 250 kV | 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 | 1.25 Uo,1000h,no flashover, without breakdown, no significant electrical corrosion and mechanical damage | no flashover, without breakdown | ||||||
Indoor termination wet test | 1.25 Uo,300h,no flashover, without breakdown, no significant electrical corrosion and mechanical damage | no flashover, without breakdown | ||||||
6-35kV Heat Shrinkable Cable Accessories:
4E-NRS, 4E-WRS, 4E-JRS heat shrinkable series cable accessories is applied to 35kV and below rubber cable. Heat shrink cable accessories is using import multiphase polymer, it’s the update products of wrapped type cable accessories. With convenient installation, keep on suitable radial pressure on the cable body, interface characteristic is good. the parameter type stress control tube to improve the distribution of the electric field, which can effectively solve the cable outer shield section in electric stress concentration problem. The electrical properties are improved from wrapped type cable accessories to ensure the safety and reliable operation. The main components are tubular, basically including stress control tube, insulation tube, three fingered tube, sealed tube protective sleeve, etc.
Main performance and structure features：
Technical performance: meet BS EN 50181, IEC60502, GB/T12706 requirements.
Heat shrink raw materials: stress tube is parameter type, well-distributed electric field at the insulating cable cut off place. Insulating tube has insilation effect, protective sleeve has protection effect. Product heat shrink is quite stable, can shrink to the original size in heating condition, the residual deformation is small. All the products are processing forming in the factory. There’s no need to use fire, no special training, installation is simple and fast.
It has resistance to filth, aging, and good waterproof, with superior cold heat resistant performance.
Surface is smooth and beautiful.
No | Name | Model | Voltage | Cable Cross section | Voltage | Cable Cross section |
1 | Heat shrink indoor termination | 4E-NRS-8.7/15-1 | 6/10 8.7/10 8.7/15 | 25～70mm² | 8.7/15 | 25～50mm² |
4E-NRS-8.7/15-2 | 95～185mm² | 70～150mm² | ||||
4E-NRS-8.7/15-3 | 240～400mm² | 185～300mm² | ||||
4E-NRS-8.7/15-4 | 500～800mm² | 400～630mm² | ||||
2 | Heat shrink outdoor termination | 4E-WRS-8.7/15-1 | 25～70mm² | 25～50mm² | ||
4E-WRS-8.7/15-2 | 95～185mm² | 70～150mm² | ||||
4E-WRS-8.7/15-3 | 240～400mm² | 185～300mm² | ||||
4E-WRS-8.7/15-4 | 500～800mm² | 400～630mm² | ||||
3 | Heat shrink middle joint | 4E-JRS-8.7/15-1 | 25～70mm² | 25～50mm² | ||
4E-JRS-8.7/15-2 | 95～185mm² | 70～150mm² | ||||
4E-JRS-8.7/15-3 | 240～400mm² | 185～300mm² | ||||
4E-JRS-8.7/15-4 | 500～800mm² | 400～630mm² | ||||
4 | Heat shrink indoor termination | 4E-NRS-26/35-1 | 18/30 21/35 26/35 | 50～150mm² | 26/35 | 50～120mm² |
4E-NRS-26/35-2 | 185～300mm² | 150～240mm² | ||||
4E-NRS-26/35-3 | 400～500mm² | 300～400mm² | ||||
4E-NRS-26/35-4 | 630～800mm² | 500～800mm² | ||||
5 | Heat shrink outdoor termination | 4E-WRS-26/35-1 | 50～150mm² | 50～120mm² | ||
4E-WRS-26/35-2 | 185～300mm² | 150～240mm² | ||||
4E-WRS-26/35-3 | 400～500mm² | 300～400mm² | ||||
4E-WRS-26/35-4 | 630～800mm² | 500～800mm² | ||||
6 | Heat shrink middle joint | 4E-JRS-26/35-1 | 50～150mm² | 50～120mm² | ||
4E-JRS-26/35-2 | 185～300mm² | 150～240mm² | ||||
4E-JRS-26/35-3 | 400～500mm² | 300～400mm² | ||||
4E-JRS-26/35-4 | 630～800mm² | 500～800mm² |
Medium Voltage Cable Accessories:
6-35kV Cold Shrinkable Cable Accessories:
4E-NLS cold shrink indoor termination, 4E-WLS cold shrink outdoor termination, 4E-JLS cold shrink middle joint are mainly composed of prefabricated body, terminations (indoor and outdoor) or connecting tube (middle joint) cold shrink muti-core fingerstall (supporting muti-core cable), and cold shrink insulation tubes and relative colorimetric tube (indoor and outdoor termination). The prefabricated body stress cone and insulating body are using plastic injuction 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 shrink structure: using latest expansion equipment and expansion support tube to ensure product expand without damage.
Easy installation: using cold shrink expansion structure, there’s no need special training, , the labor is low due to convenient installation.
6-35KV cold shrink indoor,outdoor terminations, and joints 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 95-100C,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 | 75 kV | 95 kV | 200 kV | 250 kV | 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 | 75 kV | 95 kV | 200 kV | 250 kV | 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 | 1.25 Uo,1000h,no flashover, without breakdown, no significant electrical corrosion and mechanical damage | no flashover, without breakdown | ||||||
Indoor termination wet test | 1.25 Uo,300h,no flashover, without breakdown, no significant electrical corrosion and mechanical damage | no flashover, without breakdown | ||||||
6-35kV Heat Shrinkable Cable Accessories:
4E-NRS, 4E-WRS, 4E-JRS heat shrinkable series cable accessories is applied to 35kV and below rubber cable. Heat shrink cable accessories is using import multiphase polymer, it’s the update products of wrapped type cable accessories. With convenient installation, keep on suitable radial pressure on the cable body, interface characteristic is good. the parameter type stress control tube to improve the distribution of the electric field, which can effectively solve the cable outer shield section in electric stress concentration problem. The electrical properties are improved from wrapped type cable accessories to ensure the safety and reliable operation. The main components are tubular, basically including stress control tube, insulation tube, three fingered tube, sealed tube protective sleeve, etc.
Main performance and structure features：
Technical performance: meet BS EN 50181, IEC60502, GB/T12706 requirements.
Heat shrink raw materials: stress tube is parameter type, well-distributed electric field at the insulating cable cut off place. Insulating tube has insilation effect, protective sleeve has protection effect. Product heat shrink is quite stable, can shrink to the original size in heating condition, the residual deformation is small. All the products are processing forming in the factory. There’s no need to use fire, no special training, installation is simple and fast.
It has resistance to filth, aging, and good waterproof, with superior cold heat resistant performance.
Surface is smooth and beautiful.
No | Name | Model | Voltage | Cable Cross section | Voltage | Cable Cross section |
1 | Heat shrink indoor termination | 4E-NRS-8.7/15-1 | 6/10 8.7/10 8.7/15 | 25～70mm² | 8.7/15 | 25～50mm² |
4E-NRS-8.7/15-2 | 95～185mm² | 70～150mm² | ||||
4E-NRS-8.7/15-3 | 240～400mm² | 185～300mm² | ||||
4E-NRS-8.7/15-4 | 500～800mm² | 400～630mm² | ||||
2 | Heat shrink outdoor termination | 4E-WRS-8.7/15-1 | 25～70mm² | 25～50mm² | ||
4E-WRS-8.7/15-2 | 95～185mm² | 70～150mm² | ||||
4E-WRS-8.7/15-3 | 240～400mm² | 185～300mm² | ||||
4E-WRS-8.7/15-4 | 500～800mm² | 400～630mm² | ||||
3 | Heat shrink middle joint | 4E-JRS-8.7/15-1 | 25～70mm² | 25～50mm² | ||
4E-JRS-8.7/15-2 | 95～185mm² | 70～150mm² | ||||
4E-JRS-8.7/15-3 | 240～400mm² | 185～300mm² | ||||
4E-JRS-8.7/15-4 | 500～800mm² | 400～630mm² | ||||
4 | Heat shrink indoor termination | 4E-NRS-26/35-1 | 18/30 21/35 26/35 | 50～150mm² | 26/35 | 50～120mm² |
4E-NRS-26/35-2 | 185～300mm² | 150～240mm² | ||||
4E-NRS-26/35-3 | 400～500mm² | 300～400mm² | ||||
4E-NRS-26/35-4 | 630～800mm² | 500～800mm² | ||||
5 | Heat shrink outdoor termination | 4E-WRS-26/35-1 | 50～150mm² | 50～120mm² | ||
4E-WRS-26/35-2 | 185～300mm² | 150～240mm² | ||||
4E-WRS-26/35-3 | 400～500mm² | 300～400mm² | ||||
4E-WRS-26/35-4 | 630～800mm² | 500～800mm² | ||||
6 | Heat shrink middle joint | 4E-JRS-26/35-1 | 50～150mm² | 50～120mm² | ||
4E-JRS-26/35-2 | 185～300mm² | 150～240mm² | ||||
4E-JRS-26/35-3 | 400～500mm² | 300～400mm² | ||||
4E-JRS-26/35-4 | 630～800mm² | 500～800mm² |
