nVent RAYCHEM WinterGard Cable 230V Mode D'emploi page 19

• The sensor must be mounted vertically, even on inclined surfaces.
Check the installation
Check heating cable
• Visually check the heating cable for damage.
• Verify that the heating cable has been correctly fastened to the spacers.
• Verify that the desired spacing has been maintained and that the heating cable has been kept away from
expansion joints, sharp edges, etc.
• Verify that the heating cable has been installed at the correct depth.
• Visually check the connection leads for correct installation.
Make a layout sketch
Record the layout of each circuit, with particular reference to the position of the connection heating cable - cold cable
and the heating cable end. (a photograph is also an acceptable reference of the layout.)
Perform the resistance tests
Carry out the resistance tests on each circuit to detect any damage that may have occurred during or after
installation. The insulation resistance reading must be greater than 100 MΩ.
If the insulation resistance is less than this, the cable may have been damaged. Where possible,
locate the fault and rectify.
Record the values for each circuit on the Installation Test Record.
If concrete is to be poured straight away, go to section "Concrete Pouring" (overleaf).
Protect the installation
Prevent pedestrian and vehicular traffic in the area where the heating cable has been installed.
Avoid disturbing the reinforcing steel or mesh.
Embedding Works - Concrete Pouring
Checks
Perform the following checks before the embedding works:
• check for signs of heating cable damage
• check the cable spacing
• check the height of the heating cable
Resistance tests
Perform the resistance tests on each heating cable circuit to detect any damage which may have occurred after installation.
Record the results on the Installation Test Record.
When the concrete team arrives, have them verify the resistance results and sign the Installation Test Record.
WARNING: Precautions should be taken during the concrete pour to prevent the heating cable from being
exposed to unnecessary abuse:
• Avoid excessive concrete drop heights.
• Take care when using shovels and rakes during the pour.
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