Environmental conditions for the use of electrical fittings

overhead power line connectors use environment conditions:

1. Altitude does not exceed 1000m.

2. overhead power line hardware The ambient medium temperature is not higher than +40℃ and not lower than -30℃. Note: When the altitude and transmission line hardware the ambient medium temperature cannot meet the above electrical transmission line hardware fittings conditions, this type of isolating switch can be used according to the requirements of GB311-64 national standard.

Note: hardware fittings for transmission lines isolating switch is not suitable for the following places.

1. Places with conductive or chemically active gases and steam;

2. Places with a large amount of dust;

3. Places with fire and explosion hazards;

4. Places with severe vibration or impact (such as next to electric picks, excavators, etc.).