Series resistance-type heater cables use single or multiple resistive conductors to create a heating circuit. Power output of these cables is relatively constant and as voltage is applied, the power output is determined by a combination of the length of the cable and the overall resistance of the conductor. heating cable’s current and resistance is equal to all length heating cable, so the heating value of each unit is equally, not result in the power of terminal end is lower than beginning end with the increasing length of heating cable, so it is suit for long line pipes and large diameter pipe’s heat tracing or temp. maintenance, the cable can NOT cut to be length.

Construction 

1. Bus wires
2. Bus Wire Insulation
3. Heating wire
4. Braiding
5. Outer Jacket

Construction Data

Buswire size	Nichrome / Copper Nickel
Heating element Insulation	PTFE
Inner Jacket	PTFE
Braiding	Tinne Copper Braid
Outjacket	PTFE

Maximum Circuit Length(M)

	Voltage – 230 VAC
Model	Wattage	Conductor Size (mm)2	Resistance 20°C Ohms/m
CWSHT	40	1.3	0.01492
	50	2.1	0.009449
	60	3.3	0.005945
	70	5.3	0.003478

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