Thermo Selftrace Cables are self regulating heating cables which can be used for freeze protection of water pipelines, roof & gutter heating and process temperature maintenance of pipelines, vessels, tanks, equipments etc., in domestic, commercial and industrial applications

Conergy Solutions offers Selftrace STS and Selftrace STW.

Selftrace - STS is ideally suited for low temperature applications such as freeze protection of potable water pipelines and can be used for installation on the outside surface of the pipelines and inside pipelines.

Selftrace - STW is ideally suited for low temperature applications such as roof and gutter heating and can be used for installation on the roofs and in gutters for snow / ice melting and process temperature maintenance of pipelines, vessels, tanks, equipments etc., in domestic, commercial and industrial applications.

Operating Principle:

Selftrace derives its self-regulating characteristic from the inherent properties of the semi conductive core material. 

As the core material temperature increases, the number of conductive paths in the core material decreases, thus decreasing the heat output. As the temperature decreases, the number of conductive paths increases, causing the heat output to increase. This occurs at every point along the cable's length, adjusting the power output to the varying conditions.  As the cable self-regulates its heat output, it limits the maximum sheath temperature, thus making it burn-out proof.

 

Construction:

Thermo Selftrace is a self-regulating parallel circuit heating cable consisting of a semi-conductive heating core extruded over stranded coated copper bus wires. Heating core is covered with TPE jacket to provide electrical insulation, mechanical strength and moisture resistance. A tinned copper braid is provided over the electrical insulation to give a continuous ground path. An outer jacket of TPE / Fluoropolymer is provided for use in corrosive areas.

1. Bus wire conductor
2. Semi conductive heating core
3. Primary insulation jacket
4. Metal Braid
5. Outer jacket

TECHNICAL SPECIFICATIONS:
Bus wire Conductor	Coated Copper
Heating Element	Semi Conductive core
Primary Insulation jacket	Thermo Plastic Elastomer (TPE)
Metal braid	Tinned Copper
Outer Jacket	Thermo Plastic Elastomer (TPE) or Fluoropolymer
Minimum Temperature	-30°C
Maintain Temperature	65°C
Max. Exposure Temperature	65°C
Bending radius	35mm (inner side)
Linear power output	10, 15, 17, 25, 31 W/m when measured at 10°C
Supply Voltage	230V A.C

Product Range, Circuit Breaker Selection and maximum Lengths:
Catalog Number	Output at 10Deg C	Maximum Circuit Length	Circuit Breaker Size	Maximum Maintenance Temperature	Maximum Exposure Temperature
STS - 10*	10 W/m	100/60*	10A	65°C	65°C
STS - 15	15 W/m	72	10A
STW - 17	17 W/m	154	16A
STW - 25	25 W/m	124	20A
STW - 31	31 W/m	110	25A

*  STS-10 is offered for inside pipe application with flouropolymer over jacket. Maximum length of heat tracer for inside pipe application is 60M.

Note:
1) Circuit breakers are sized based on start-up temperatures at 10°C.
2) Earth leakage circuit breaker (ELCB) is recommended for each heating circuit. Sensitivity of the ELCB should not exceed 30 mA.

Accessories:
We offer full range of accessories required for power connection, end connection, splice connection and temperature controllers

 

For more details and business enquiries, please contact us

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