Resistance Correction Factor for Heating Cables
Resistance Multiplier for Conductor Materials - Power on
Pipe Temperature to be maintained (°C / °F)
Resistance Multiplier for Conductor Materials - Power off
Pipe Temperature to be maintained (°C / °F)
Remarks
Tolerance on conductor resistance is ± 5 % for all 300 volt 2/C cables and 600 volt 1/C cables.
The maximum recommended loading is 200 watts per metre for all 300 volt 2/C cables and 210 watts per metre for all 600 volt 1/C cables.
For pipe tracing, the maximum recommended watts per metre of cable may be reduced to the pipe to maintain or process temperature.
Minimum bend radius is 5 times nominal cable diameter.
