For making connections to electrical equipment used in a waste-water environment and subject to heavy mechanical stress, including:
- Submersible pumps in sewage disposal and treatment
- Submersible mixers
Owing to the various (and frequently changing) substances of which the contaminated water is made up, the cables may be used only in easily accessible areas that can be inspected (installation depth of approximately 10 m, as customarily encountered in sewage water tanks).
These cables are also suitable for use in:
- Process water
- Cooling water
- Mine surface water
- Rainwater
- Combined waste water
Under certain circumstances they can be suitable for groundwater and seawater; it is possible to impose less stringent specifications in terms of accessibility and inspection. In such cases the cables can be used at depths up to 500 m. If the water concerned is aggressive or composed of special substances, the cables resistance properties should be examined. These cables can be used indoors, outdoors, in explosion-hazard areas. In other respects, DIN VDE 0298-300 / HD 516 applies.