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Generally, XLPE insulated cables above 110kV level use a metal sheath to meet the waterproof requirements. The biggest feature of the metal sheath is its complete impermeability, so cables with metal sheath have excellent radial water resistance performance for waterproof connectors. Below are three types of machines for prefabricated cables with waterproof connectors.

1. Waterproof plugs can be pre installed on site for direct wiring of electrical user equipment. All waterproof connectors are provided with pressure reducing enclosures and are compatible with all common types of cables. A waterproof plug with a spring or screw connection is required.

2. To extend the cable, an internal socket or plug should be installed at the end of the relevant cable. The wiring cable needs to have a plug, and the waterproof plug needs to have an exposed end to connect to the final device.

3. The power cable can provide input power for the waterproof joint system using traditional wiring methods, or standard waterproof plugs can be installed on the power end, and the required socket connectors can be pre installed on the other side.