Inspect piping for burrs, rough surfaces, sharp edges
etc. which could damage the heating cable. Smooth off
or cover with layers of aluminium foil. At elevated sheath
temperatures consider the use of stainless steel foil.
(e.g. HSQ; HIQ or HAx).
Surface areas where heat-tracing is to be installed must be
reasonably clean. Remove dirt, rust and scale with a wire brush
and oil and grease films with a suitable solvent.
3.2 heating cable pulling and laying
Heating cable pulling tips:
figure 3: importance of cable pulling direction
Avoid distortion of the cable and kinking.
When pulling the heating cable, avoid:
sharp edges
excessive pulling force
kinking and crushing
running over it with equipment.
The minimum bending radius of the heating cable must be respected.
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