ESH Trace Heating Ltd Manufacture and Supply Trace Heating Solutions for use in Zone I and Zone II Hazardous Areas.
Ideally all heat tracing systems should be designed to be stabilised systems.
A stabilised system is where the power loading of the heating tape is such that under conditions of no temperature control i.e. thermostat failure, the sheath temperature of the heating tape cannot exceed the 'T' classification.
Where stabilised designs cannot be achieved it is necessary to employ an over-ride thermostat with lockout and alarm facility to prevent the 'T' classification being exceeded.
NOTE: Non-stabilised designs may lead to operational problems as the over-ride thermostat may prevent the trace heating system delivering the required heat output (kWhr) under low ambient temperature conditions. It is therefore essential that the thermal design characteristics of the system are carefully evaluated.
For system design and installation advise please contact us or refer to our system design and product specification sheets.
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