Selection of heating strip and calculation of power

Is there no expert willing to give some advice?

The strap indicates the heating temperature and power per meter.

Thank you for sharing; I’ll go ask the equipment manufacturer

Electric heat tracing comes in two types: one uses PTC conductive plastic to generate heat, while the other uses alloy wires for this purpose. However, their function is the same – to provide heat tracing for pipes, equipment, tanks, instruments, etc., with heating serving as a supplementary measure to compensate for heat loss caused by temperature differences in the environment and thus achieve thermal compensation. Therefore, it is necessary to calculate the required power for electric heating based on the parameters at the site, that is, using the heat loss calculation formula (refer to the article). Logically, the maximum maintaining temperature of the electric heating strip must be higher than the temperature of the medium. Taking a DN50 pipe as an example, when the heat loss per meter of pipe is less than or equal to the steady-state power or rated power of the electric heating strip, the ratio of the length of the electric heating strip to the length of the pipe is 1.1~1.2. If the heat dissipation per meter of pipeline is greater than the power of the electric heating element, then certain calculations are necessary. Taking the power of the electric heating element as half of the heat dissipation per meter of pipeline as an example: 1. Two parallel electric heating strips can be used; in this case, the length of the heating strips will be the pipeline length multiplied by the number of strips. 2. One electric heating strip can be wound around the pipeline in proportion; the length of such a strip will then be the pipeline length multiplied by the proportion. 3. A certain amount of electric heating strip must be reserved for pipeline accessories, and there should also be enough excess for the installation of the electric heating components