Selection guide for self-regulating heat-tracing systems

Heating Cable Selection1. Determine heat lossStep 1.1Table 1Determine heat lossHeat Loss Table2. Select heating cablefamily3. Select heating cable4. Determine heatingcable lengthThe table is based on the following parameters:• Mineral wool insulation• Minimum expected ambient temperature: –20°C• Pipes located outdoors• Steel pipes• • Safety factor 10%For other configurations (dimensions, temperatures, etc.), please use TraceCalc Proor TraceCalc Net software or consult your Tyco Thermal Controls representative.1. Select the pipe diameter and insulation thickness Example: NB 50 mm,2. Select the desired maintain temperature 50 mm insulation3. Note the heat loss result thicknessT m: 50°C18.8 W/mDN= ∅ pipe (NB)Insulationthickness (mm)Maintain temperature (°C)5 10 20 30 40 50 608 25 3.9 4.7 6.4 8.1 9.9 11.8 13.730 3.5 4.3 5.8 7.5 9.1 10.8 12.640 3.1 3.8 5.1 6.5 8.0 9.5 11.015 25 4.9 6.0 8.2 10.4 12.7 15.1 17.630 4.5 5.4 7.4 9.4 11.5 13.7 15.940 3.9 4.7 6.4 8.1 9.9 11.8 13.720 25 5.7 6.9 9.4 11.9 14.6 17.4 20.230 5.1 6.2 8.4 10.7 13.1 15.6 18.140 4.4 5.3 7.2 9.2 11.2 13.3 15.525 25 6.6 7.9 10.8 13.8 16.9 20.0 23.330 5.9 7.1 9.6 12.3 15.0 17.9 20.840 4.9 6.0 8.1 10.4 12.7 15.1 17.532 25 7.6 9.3 12.6 16.1 19.7 23.3 27.130 6.8 8.2 11.2 14.2 17.4 20.7 24.140 5.7 6.9 9.3 11.9 14.6 17.3 20.140 25 8.4 10.2 13.8 17.6 21.5 25.6 29.730 7.4 9.0 12.2 15.5 19.0 22.6 26.240 6.1 7.4 10.1 12.9 15.8 18.7 21.850 30 8.6 10.5 14.2 18.2 22.2 26.4 30.640 7.1 8.6 11.7 14.9 18.2 21.7 25.250 6.1 7.5 10.1 12.9 15.8 18.821.865 30 10.2 12.4 16.9 21.5 26.4 31.3 36.440 8.3 10.1 13.7 17.5 21.4 25.4 29.650 7.2 8.7 11.8 15.0 18.4 21.8 25.480 40 9.3 11.3 15.4 19.6 24.0 28.5 33.150 8.0 9.7 13.1 16.7 20.5 24.3 28.380 5.9 7.1 9.7 12.3 15.1 17.9 20.8100 50 9.5 11.6 15.7 20.1 24.5 29.1 33.980 6.9 8.3 11.3 14.5 17.7 21.0 24.4100 6.0 7.2 9.8 12.5 15.3 18.2 21.2150 50 12.8 15.6 21.2 27.0 33.0 39.2 45.680 9.0 10.9 14.9 18.9 23.2 27.5 32.0100 7.7 9.3 12.7 16.2 19.8 23.5 27.3DOC-565 Rev.2 03/117