Design Guide for Hazloc / Industrial
Self regulating trace heating systems
01-5800-7N0012/-
05/2019-EHT-432712
Notice
Technical data subject to change without notice.
No claims for damage arising from alternations, errors or misprints shall be allowed.
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Overview
This manual covers the design, installation and operation of BARTEC Self regulating trace heating systems for use in hazardous locations using
the following self-regulating trace heaters:
▪
BARTEC PSB
▪
BARTEC MSB
▪
BARTEC HSB
▪
BARTEC HTSB
The self-regulating trace heater features a temperature-dependent resistive element between two parallel copper conductors that regulates and
limits the heat output of the trace heater according to the ambient temperature. If the ambient temperature rises, the power output of the trace
heater is reduced. This self-regulating property prevents overheating which would cause damage to the trace heater. Even crossing or overlap-
ping with other trace heaters (or other portions of the same trace heater) are possible.
high power output
low temperature
high temperature
low power output
The trace heaters are fixed equipment heating systems for pipes in ordinary and hazardous areas. Thanks to the parallel design the trace heater
can be cut and installed to any required length (up to the maximum heating circuit length as shown on page 17).
Multiple options for connection, splicing and end termination of the heating circuit are available to meet the individual requirements on site. A large
variety of accessories allows for easy customization and extensibility. The following illustration shows a typical electric trace heating system:
Power distribution
wiring (3
rd
party)
Transformer
Trace heater
Attachment tape
Warning label
Power distribution panel
(incl. ground fault protection)
End seal
Power connection kit
cold pipe warm pipe hot pipe
