How to use electric heating cable correctly

How to use electric heating cable correctly

1. The electric heating belt should not be twisted during storage, handling, installation and use. It is not allowed to bend repeatedly. It is strictly forbidden to damage the outer sheath and damage the insulation layer.

2. When installing, avoid the dark corners of the ditch that may accumulate in the flammable and explosive medium.

3. When selecting the electric heating belt, pay attention to the explosion-proof temperature group, and do not exceed 75% of the flash point or spontaneous combustion temperature of the flammable medium.

4. The installation of the electric heating belt must be completed after the installation of the medium pipeline system is completed, and after passing the water pressure or airtight test. The construction of the insulation layer must be completed after the installation and commissioning of the electric heating belt, and the power transmission is normal.

5. When installing the electric heating belt, sharp edges and sharp corners should be polished or padded with aluminum tape to prevent damage to the outer insulation layer.

6. The small bending radius of Zui in the installation of the electric heating belt should not be less than 5 times of its thickness.

7. When installing the electric heating belt, it should be closely attached to the pipeline. Whenever possible, use aluminum tape to paste it. The oil and moisture in the way should be cleaned. Use heat-resistant tape every 0.?~0.?8?m? Fix the heating cable in the radial direction.

8. When installing the electric heating accessories, a certain amount should be left for maintenance. For the PTC? parallel electric heating belt, because it is composed of many sections of heating sections in parallel, so it has several tens of centimeters at the beginning and the end. Cold end, the installation should start from the hot part, the heating element at the first and last ends (especially the parallel heating wire) should be cut as short as possible, no exposure is allowed, and it is strictly prohibited to contact the outer woven mesh or pipe.

9. Crossing and overlapping are not allowed when installing other specifications of the tropical heating zone except for self-regulating electric heating.

10. When wiring, the heating cable and accessories should be connected correctly and reliably, be careful of short circuit, and connect the braided net to ground.