A PHC constant wattage cable is composed of multiple constant electric power zones, a fine heating element is wrapped around two insulated parallel bus wires, then on alternating sides of the conductors a notch is made in the insulation. The heating element is then normally soldered to the exposed conductor wire which can create a heating circuit; this is then repeated along the length of the cable. An inner jacket separates the bus wires from the grounding braid. Outside the shield braid, an additional outer jacket of Fluoroplastic is applied, which Plays an important role in enhancing corrosion protection.

The benefits of this system is that should one small element fail then the rest of the system will continue to operate. Also, due to its parallel circuitry designed, this cable can be cut in length, but not in a arbitrarily way, the cutting length must exceed 3 meters ,and keep the heating nodes. Due to the circuit only running to the last zone on the cable, when installing on site you normally have to install slightly beyond the end of the pipe work. When installing constant wattage heat tracing cable, it is important to noticed that never overlap or touch the cable to itself as it will be subject to overheating and burnout. A thermostat controller should be installed with the constant wattage cable to control the power output of the electrical cable, making it a very safe heating element.

Our J3 type constant wattage heating cable is designed with an working temperature up to 130℃, while the maximum resistance temperature can reaches at 205℃, which makes it an ideal way of heat tracing in various industrial applications.

As one of the most leading manufacturers in heat tracing products, only virgin raw material applied, which ensures our electric heat cable keeps the highest industry standards.

The initial starting current of our heating cables is extremely lower, which means our products have a longer lasting service life, together with Over 85% shield braid covered, 100% quality inspection guaranteed, All of these make our heat trace cable always so outstanding in the global markets.

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