Common Types Of Electric Heating Cables - Danfoss DEVItector II V2 Bedienungsanleitung

Lokalisieren und beheben von fehlern bei elektrischen begleitheizbändern

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User Guide

Common types of electric heating cables

Before you start measuring the cable, it is important to know the di erent types of faults, and how they a ect

the diagnosis. The 4 most common cable types are shown below. They feature from one to three conductors,

including the optional screen. Heating cables having more than three conductors are treated similar to twin

conductor cables.

Note: Only heating cables with two or more conductors can be handled by the DEVItector™. The tracing prin-

ciple is based on an electrical return path within the heating cable. So, keep in mind that "Single conductor

without screen" cable is not possible to be handled by the DEVItector™.

Single conductor without screen

Single conductor with screen

Twin conductor without screen

Twin conductor with screen

Cold cable:

Fig. 21: Four types of heating cable. The rst two cables are single conductor cables, and the last two are twin

conductor cables. Drawings indicates heating conductors as "heating cable".

BC421332622232de-DE0101

DEVItector™ II V2

Heating cable:

Screen:

Connection coupling:

End coupling:

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