The first step in designing a heat trace system is to determine the heat loss from each pipe or tank to be traced.
Heat trace cable maximum length.
Srhc lt 3w 120v w monitor wire braid an d jacketself regulating heater cable wattage.
When using heat trace on plastic pipes ensure that the cable does not exceed 12 watts per metre and is fitted with earth protection.
150 f 65 c max intermittent exposure.
A length with a denotes that the power delivered by the cable is more than enough to bring the pipe to your chosen setpoint.
Minimum ambient temperature ta.
Can i use heat trace on plastic pipes.
Electric trace heating began in the 1930s but initially no dedicated equipment was available.
Do i have to allow extra heat for pumps and valves.
While a temperature controller is recommended for all heat tracing applications in this case it should be considered essential.
Although sr cable is cut to length the amount of cable needed can be lengthened or shortened by increasing or decreasing the loop height.
Mineral insulated resistance heating cable was introduced in the 1950s and parallel type heating cables that could be cut to length in the field became.
Pvc cables and pvc fixing tape must not be used on pvc pipes.
This aht cable is cut to length in the field and offers a flexible aluminum jacketed design.
Sum the amount of cable needed for each type of roof feature to determine the total cable length.
Collect the following data for each pipe for tank applications go to page 6.
Then fol low the steps below to determine the heat loss.
If this length exceeds the maximum circuit length of the cable multiple runs will be needed.
Maintenance temperature t m.
Mineral insulated cables ran at high current densities to produce heat and control equipment was adapted from other applications.
Monitor wire braid and jacket maximum maintenance temperature.
The heat trace tape should be used in conjunction with a thermostat.
