Heat Trace Cable Maximum Length

While a temperature controller is recommended for all heat tracing applications in this case it should be considered essential. Click on a cell in the bottom row of the table above to choose a style of cable. Minimum ambient temperature ta.

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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 resistance heating cable was introduced in the 1950s and parallel type heating cables that could be cut to length in the field became. The first step in designing a heat trace system is to determine the heat loss from each pipe or tank to be traced. Srhc lt 3w 120v w monitor wire braid an d jacketself regulating heater cable wattage. 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.

If this length exceeds the maximum circuit length of the cable multiple runs will be needed. Although sr cable is cut to length the amount of cable needed can be lengthened or shortened by increasing or decreasing the loop height. When using heat trace on plastic pipes ensure that the cable does not exceed 12 watts per metre and is fitted with earth protection. Pvc cables and pvc fixing tape must not be used on pvc pipes.

Monitor wire braid and jacket maximum maintenance temperature. 150 f 65 c max intermittent exposure. Then fol low the steps below to determine the heat loss. The mi cable is made to order and cannot be cut to length in the field.

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. Do i have to allow extra heat for pumps and valves. This aht cable is cut to length in the field and offers a flexible aluminum jacketed design.

Mineral insulated cables ran at high current densities to produce heat and control equipment was adapted from other applications. Electric trace heating began in the 1930s but initially no dedicated equipment was available. Can i use heat trace on plastic pipes. Maintenance temperature t m.

Collect the following data for each pipe for tank applications go to page 6.