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Composite sleeve type outdoor terminal

Composite sleeve type outdoor terminal

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Application areas:

Primarily used in high-voltage AC power transmission, for connecting high-voltage power cables to electrical equipment or overhead lines.

Product Description

  • The terminal stress cone is injection molded from imported ethylene propylene diene monomer (EPDM) rubber and is held in place by a spring cone support. The stress cone cover structure isolates the stress cone from the insulating filler, overcoming the defects of elastic relaxation caused by material aging and poor contact between the stress cone and the outer semiconductive layer of the cable, thus ensuring the long-term stable operation of the terminal.
  • The terminal adopts a multi-layer sealing structure to prevent water seepage, oil leakage and other phenomena during operation;
  • The terminal bushing adopts a large and small umbrella skirt structure, which has good anti-flashover characteristics;
  • The composite bushing uses silicone rubber sheds as external insulation, which has excellent resistance to flashover, UV resistance, aging resistance and explosion-proof performance, and its weight is less than 50% of that of the porcelain bushing.

Product Parameters

Serial Number project Parameters (110kV) Parameters (220kV)
1 name Composite sleeve outdoor terminal Composite sleeve outdoor terminal
1.1 Specification WYJZWCF4 (WYJZWFY4) WYJZWCF4 (WYJZWFY4)
1.2 Implementation Standards IEC60840 GB/T11017 IEC62067, GB/Z18890
1.3 Rated voltage (Uo/U) 64/110kV 127/220kV
1.4 Maximum operating voltage (Um) 126kV 252kV
1.5 Baseline Impact Resistance Level (BIL) 550kV 1050kV
1.6 Maximum rated temperature of conductor:
a) During normal operation 90℃ 90℃
b) Transient (short-circuit current duration not exceeding 5s) 250℃ 250℃
1.7 Insulating components
a) Materials and colors Epoxy resin and imported silicone rubber/grey Epoxy resin and imported silicone rubber/grey
b) Climb distance 4032mm ≥7812mm
c) Mechanical property description Horizontal load 2kN Horizontal load 2kN
1.8 Stress cone
a) Materials Imported EPDM rubber Imported EPDM rubber
b) Storage conditions and shelf life Cool and dry place, 5 years Cool and dry place, 5 years
1.9 Terminal weight 130kg 780kg
1.10 high 1920mm 3425mm
1.11 Tail end sealing form Waterproof tape, epoxy putty, heat shrink tubing Waterproof tape, epoxy putty, heat shrink tubing
1.12 Metal grounding of the terminal
a) Connection method Welding or sealing lead Welding or sealing lead
b) Equivalent cross section ≥240mm2 ≥240mm2
c) Allowed to pass the maximum short-circuit current Consistent with cables Consistent with cables

Product Selection

WYJZWCF4 (WYJZWFY4) type: Suitable for outdoor pollution level IV.

  • Rated voltage: 48/66kV, applicable to 120~1600mm²
  • Rated voltage: 64/110kV, applicable to 240~1600mm²
  • Rated voltage: 76/138kV, applicable to 240~1600mm²
  • Rated voltage: 127/220kV, applicable to 400~2500mm²

 

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