A length with a denotes that the power delivered by the cable is more than enough to bring the pipe to your chosen setpoint.
Heat trace cable maximum length.
Mineral insulated cables ran at high current densities to produce heat and control equipment was adapted from other applications.
If this length exceeds the maximum circuit length of the cable multiple runs will be needed.
Monitor wire braid and jacket maximum maintenance temperature.
The first step in designing a heat trace system is to determine the heat loss from each pipe or tank to be traced.
Can i use heat trace on plastic pipes.
Electric trace heating began in the 1930s but initially no dedicated equipment was available.
Although sr cable is cut to length the amount of cable needed can be lengthened or shortened by increasing or decreasing the loop height.
Bartec the premier heat trace manufacturer in europe who is now entering the us market also offers a medium temperature aht cable that is capable of reaching 797f.
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.
Minimum ambient temperature ta.
Maintenance temperature t m.
This aht cable is cut to length in the field and offers a flexible aluminum jacketed design.
When using heat trace on plastic pipes ensure that the cable does not exceed 12 watts per metre and is fitted with earth protection.
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.
Srhc lt 3w 120v w monitor wire braid an d jacketself regulating heater cable wattage.
Sum the amount of cable needed for each type of roof feature to determine the total cable length.
The heat trace tape should be used in conjunction with a thermostat.
Then fol low the steps below to determine the heat loss.
Collect the following data for each pipe for tank applications go to page 6.
150 f 65 c max intermittent exposure.