
2. Fully-insulated,fully-submersible,screened and un-screened product.
3. Can be used in cable branch box matching with the loaded switch socket.
4.Its fully-insulated and fully-sealed connection avoids the critical defects caused by exposed high voltage in bad weather.
5. The ring main unit consisting of crossing connector and bus-bar connector.
6. Has high reliability and low investment.

1. Inner resistance <3000Ω
2. Insulation layer hardness is 45±5'A, color: gray
3. Adhesive material: EPDM.
4. Rounded R1 is not marked.
5. No tolerance specified according to the tolerance table
Product Parameters | ||||
ltem | Unit | Techincal parameter | ||
Rated voltage | kV | 8.7/15kV | ||
System voltage | kV | 10kV | ||
Rated frequency | Hz | 50Hz | ||
5 min power frequency withstand volatge1min | kV | 39kV no breakdown, no flashover | ||
Lightning impulse voltage | kv | 95kV | ||
Standard | GB/T 12706.4-2020 | |||
Insulation Grade | Grade B | |||
Ambient temparature | ºC | -25ºC~40ºC | ||
Partial discharge test | PC | 15kv<10PC |