Instruction Manual

7
C. Installation Instructions
Pre-Installation Check
 The heating cable should be tested to ensure electrical integrity with at least a 500 VDC
megohmmeter (megger) between the grounding pin and any of the other two pins. Minimum
resistance should be 20 megohmmeter. Readings below 20 megohmmeter may mean the electrical
insulation has been damaged, and the heating cable must be replaced.
 Ensure the service voltage available is correct for the heating cable system.
 Inspect the piping system and plan the routing of the heating cable on the pipe. Remove any burrs,
rough surfaces, or sharp edges at the same time. Remove dirt, rust, and scale with a wire brush.
Remove oil and grease films with a suitable solvent.
Laying Out the Heating Cable
Standard Lengths: to protect a pipe with a standard length of heating cable

Apply the cable straight along the bottom of horizontal pipe or the “weather side” of vertical pipe
Non-standard Lengths: to protect a pipe with other than one standard length of heating cable
 Apply two separate cables on opposite sides of the pipe, starting from opposite ends.
 Overrun in the middle of the pipe should not exceed 0.9 m (3 ft).
Warning:
- Avoid pulling or jerking on the heating cable or installing against sharp edges.
- Do not kink or crush the cable, including walking on it or running over it with
equipment.
- Warnings: Do not use metal attachments such as pipe straps or tie wire to attach the
heater cable, as these may damage heating cable and cause electrical arcing or fire.