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Product Introduction:
35KV heat shrinkable joints are designed for 1 and 3-core XLPE power cables. The whole set contains heat shrinkable outer and inner insulation tubes,stress control tubes, sealing tubes,protective tubes,self adhesive tape and voil filler.Its unique patented water-proof design ensures the higher security of cable accessories.
Its high permittivity material endows it unique stress control system. And with compact design and few components, this product is easy to install, minimal waste for disposal. Fast, consistent installation means lower installing costs. Installation environment: use of torch adds flexibility to cable preparation in any climate. It also has high reliability. Heat-activated seals ensure maximum protection against moisture ingress. Lightweight construction requires no additional support. UV resistant, non-tracking outer tube for long life, even under adverse conditions. It also has excellent mechanical robustness.
Technical Data:
PROPERTY | TEST CONDITION AND TEQUIREMENT | RESULTS | |||
AC withstand for 1 min.(dry withstand, for indoor termination) | No breakdown and flashover shall occur at 105kV, 1min | No breakdown and flashover occurred on the combi.sample at 105kV, 1min | |||
Partial discharge | 39kV, ≤10PC | 39kV, ≤10PC | |||
Load cycle | Heating for 5h, cooling for 3h. Conductor's temperature is 95, 3 cycles | Conductor's temperature is 95. Results refer to the following test | |||
Impulse voltage withstand 1.2/50us±10times | 10 positiVe and 10 negative impulses at 250kV, flashover 1 time is allowed but not including total testing times | No breakdown of the combi.sample occurred at 250kV | |||
DC voltage withstand negative 15 min. | No breakdown and flashover shall occur at 156kV | No breakdown and flashover occurred on the combi.sample at 156kV, 15min | |||
AC voltage withstand, 4h | No breakdown and flashover shall occur at 104kV, 4h | No breakdown and flashover occurred on the combi.sample at 104kV, 4h | |||
Oil-seal up test | Heating for 24h, cooling for 24h. Conductor's temperature is 65, oil pressure: 100MPA | No leaking, no seeping | |||
(Only for Paper insulated cables) |
35KV Heat Shrinkable Joint