1Name
1.1Specification / WYJZWC4 (WYJZWY4)-64/110 / WYJZWC4 (WYJZWY4)-127/220
1.2Applicable standard / IEC60840 GB/T11017 / IEC62067, GB/Z18890
1.3Rated voltage (Uo/U) / 64/110kV / 127/220kV
1.4Maximum operating voltage (Um) / 126kV / 252kV
1.5Basic insulation level (BIL) / 550kV / 1050kV
1.6Maximum rated temperature of conductor:
a) During normal operation90°C / 90°C
b) During transient state (short-circuit current duration not exceeding 5s)250°C / 250°C
1.7Insulation component
a) Material and colorHigh-strength electrical porcelain / brown / Inorganic electrical porcelain / brown
b) Creepage distance≥4032mm / ≥7812mm
c) Mechanical performance descriptionHorizontal load 2kN / Horizontal load 2kN
1.8Stress cone
a) MaterialImported EPDM rubber / Imported EPDM rubber
d) Storage conditions and service lifeCool and dry, 5 years / Cool and dry, 5 years
1.9Termination weight / 220kg / 1000kg
1.10Height / 1910mm / 3395mm
1.11Tail-end sealing form / Waterproof tape, heat-shrinkable tube, epoxy putty / Waterproof tape, epoxy putty, heat-shrinkable tube
1.12Metal shield layer and grounding
a) Connection methodWelding or lead sealing / Welding or lead sealing
b) Equivalent cross-section≥240mm² / ≥240mm²
c) Maximum permissible short-circuit currentConsistent with cable / Consistent with cable