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NSY/WSY/JSY 6/10KV 1-3 core 25-500mm² outdoor and indoor high voltage cross-linked cable heat shrinkable terminal and intermediate joint

Heat-shrinkable power cable terminal head and intermediate joint series products integrate waterproof, stress control and insulation. It has good electrical and mechanical properties and can be used for a long time under various harsh environmental conditions. It has the advantages of light weight and convenient installation. Widely used in electric power, petrochemical, metallurgy, railway port and construction fields.

    Product Description

    Heat-shrinkable power cable terminal head and intermediate joint series products integrate waterproof, stress control and insulation. It has good electrical and mechanical properties and can be used for a long time under various harsh environmental conditions. It has the advantages of light weight and convenient installation. Widely used in electric power, petrochemical, metallurgy, railway port and construction fields.
    Heat-shrinkable cable accessories, commonly known as heat-shrinkable cable heads, are widely used in the intermediate connections and terminals of cross-linked cables or oil-immersed cables with voltage levels below 35KV and heat-shrinkable cable accessories. Compared with traditional cable accessories, it has the characteristics of small size, light weight, safety and reliability, and convenient installation. The product conforms to the GB11033 standard, the long-term use temperature range is -55℃~105℃, the aging life is up to 20 years, the radial shrinkage rate is ≥50%, the longitudinal shrinkage rate is less than 5%, and the shrinkage temperature is 110℃~140℃.
    The materials used are generally composed of a blend of various material components such as polyethylene, ethylene-vinyl acetate (EVA) and ethylene-propylene rubber.
    This type of product mainly uses stress tube to deal with the problem of electrical stress concentration. That is, the parameter control method is used to relieve the stress concentration of the electric field.
    The main advantages are light weight, easy installation and good performance. cheap price.
    The stress tube is a heat shrinkable tube with special electrical parameters with moderate volume resistivity (1010-1012Ω•cm) and high dielectric constant (20--25). The electrical parameters are used to force the stress evacuation at the fracture of the cable insulation and shielding. into a more uniform distribution along the stress tube. This technology can only be used in 35kV and below cable accessories. Because the stress tube will heat up and cannot work when the voltage level is high.
    The key technical problems in its use are: To ensure that the electrical parameters of the stress tube must meet the specified values ​​of the above-mentioned standards, it can work.
    In addition, attention should be paid to filling the air gap at the fracture of the insulating semiconducting layer of the cable with silicone grease to remove gas and reduce partial discharge.
    The cross-linked cable will shrink greatly during operation due to poor internal stress treatment. Therefore, when installing accessories, pay attention to the overlap between the stress tube and the insulating shield of not less than 20mm to prevent the stress tube and the insulating shield from detaching during shrinkage.
    Due to the low elasticity of heat shrinkable accessories, air gaps may be created at the interface during thermal expansion and contraction during operation, so sealing technology is important to prevent moisture intrusion.
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    Product model description and scope of application

    TSY    terminal
    NSY    indoor terminal
    WSY   Outdoor Terminal
    JSY     intermediate connector

    Heat shrinkable cable accessories series products apply to:
    Rated voltage: 450/750 v, 0.6/1 kv, nominal section: 4-1200²
    Rated voltage: 6/6 kv, 6/10 kv, nominal section: 16-1000²
    Rated voltage: 8.7/10 kv, 8.7/15 kv, nominal cross section: 25-1000²
    Rated voltage: 12/20 kv, 18/20 kv, nominal section: 25-800²
    Rated voltage: 21/35 kv, 26/35 kv, nominal section: 25-1200²

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    Product technical parameters

    675038d9e25a348717675038dab1e7382413675038dbaa70993791

    Product Structure & Accessories

    675038dd1ebbb85670675038de33d2297544675038df9df6f62536

    Product structure features

    10kv heat shrinkable cable accessories are used for end treatment and intermediate connection of medium voltage cables, which can be widely used in electric power, petroleum, wind power, chemical industry, metallurgy, railway, subway, port and construction and other fields.
    Installation fast, simple, impact resistant, friction resistance, shrinkage is fast, no crack;
    Has good electrical properties, mechanical properties and anti-fouling performance;
    Broad scope, can in a variety of harsh environment under the conditions of use for a long time.
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    Product details

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    Products real shot

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    A corner of the production workshop

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    Product packaging

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    Product application case

    675038e878d2728598675038ea1888828569

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