Parallel heating cables

Parallel heating cables are used to prevent freezing and to maintain the temperature of tanks, pipework, valves, filters and other technical equipment. They are used in a wide variety of sectors, including the food and paper industries, as well as in building services and transport engineering. Thanks to their versatility, they are suitable for both simple applications and operation under demanding environmental conditions.
 

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Parallel heating cables with resistance wire (e.g. ELP/Si) consist of two power conductors embedded in a first layer of insulation. The heating conductor is wound around this, and is in turn surrounded by a second layer of insulation. The protective braiding and outer sheath provide maximum safety.

The heating cable consists of a series of heating zones (length = contact spacing) and can be cut to the required length in sections at the contact spacing. When cutting to length, the heating circuit is interrupted at the next contact point, and this inactive section can be used as a connection. During the design phase, one contact spacing length must be added for each planned heating circuit.

Suitable versions are available for almost any requirement – including harsh or corrosive operating environments. The ‘BO’ version features a tinned copper protective braid with a thermoplastic outer sheath and is suitable for all low- and medium-temperature applications. The “BOT” variant is additionally fitted with a chemical-resistant fluoropolymer outer sheath (Teflon) and is therefore particularly suitable for aggressive environments involving chemicals, oils or fuels.