The series of excessively-long cable

Application

ZKWD,TZKWZ,TZKWG excessively long automatic-control-temperature heating cable is specifcally used for long-distancetransport pipes, freeze-proof and thermostat, which maximum maintamning temperature is 65’℃, 105℃, 135℃. The length of singlepower circuit can reach 2000m (Bi-Power Supply can reach 4000m). It is available in the ordinary area, dangerous area and corrosive area.
The electricity-heating cable consists of three same-length single-phass series-changing box and transfonmers necessary for theinstallation (or being made accordingto the requirement of the customer, saving the phasechanging box by putting the phase-changingwire into theinner cable)

Main technical index

1. Standard colour:black,(black, red and brown for electrical heating tape sheath
2. Temperature range:the same as ZKWD,ZKWZ,ZKWG
3. Rated voltage:380-660VAC, 3 phases, 4 cores.
4. Circuit length:

Rated Voltage	Single power supply	Unidirectional power supply	Bi-Power Supply
At 380V AC	Minmum circuit length	305m	610m
At 380V AC	Maximum circuit length	1000m	2000m
At 6000V AC	Minmum circuit length	1000m	2000m
At 6000V AC	Maximum circuit length	2000m	4000m

The series of excessively-long cable