Maintenance temperature t m.
Heat trace cable maximum length.
Click on a cell in the bottom row of the table above to choose a style of cable.
Although sr cable is cut to length the amount of cable needed can be lengthened or shortened by increasing or decreasing the loop height.
Electric trace heating began in the 1930s but initially no dedicated equipment was available.
Pvc cables and pvc fixing tape must not be used on pvc pipes.
Mineral insulated cables ran at high current densities to produce heat and control equipment was adapted from other applications.
The first step in designing a heat trace system is to determine the heat loss from each pipe or tank to be traced.
Then fol low the steps below to determine the heat loss.
This aht cable is cut to length in the field and offers a flexible aluminum jacketed design.
Collect the following data for each pipe for tank applications go to page 6.
Monitor wire braid and jacket maximum maintenance temperature.
150 f 65 c max intermittent exposure.
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.
While a temperature controller is recommended for all heat tracing applications in this case it should be considered essential.
If this length exceeds the maximum circuit length of the cable multiple runs will be needed.
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.
The heat trace tape should be used in conjunction with a thermostat.
A length with a denotes that the power delivered by the cable is more than enough to bring the pipe to your chosen setpoint.
The mi cable is made to order and cannot be cut to length in the field.
Minimum ambient temperature ta.
Sum the amount of cable needed for each type of roof feature to determine the total cable length.
Do i have to allow extra heat for pumps and valves.
