Short-circuit of parallel busbars of self regulating heating cable
Self Regulating Heating Cable is different from other heating cables. The two metal parallel busbars are for conducting electricity, not heating elements, while the heating element of self-controlled electric heating is its own PTC core belt.
Therefore, the parallel busbars of self-controlled electric heating cannot touch each other, which can easily lead to short circuit of electric heating and cause accidents
The fixation is relatively tight, and there is no reserved space. Or the self regulating heating cable is dragged on the ground when it is tied with metal wire.
The above situation leads to the destruction of the insulation layer. Among them, the tight fixation will cause the core belt to break due to the tight fixation of the electric heating when the electric heating belt is heated.
Tying or dragging with metal wire will destroy the insulation layer. In the above situation, in order to avoid barbaric operation, the fixed electric heating can be fixed with Niyou cable ties or special fixing tapes and thermal tapes for electric heating. It is strictly forbidden to tie with metal wire.
Frequently turn on and off the self regulating heating cable when the electric heating cable is working
In order to save electricity, many users manually control the electric heating. Frequent opening and closing will cause excessive current, and finally break through the core belt, resulting in a short circuit.
So please do not do this. The editor explains here that the self regulating heating cable is a kind of energy-saving and environmentally friendly electric heating belt.
It does not work 24 hours a day after power is turned on. Because the self-controlled temperature electric heating itself is a PTC semiconductor material with good memory performance. It can perform thermal compensation according to the temperature of the environment and the medium in the pipe.
When the temperature reaches the upper limit, the current will become very small. It is basically in a non-working state. If you are worried about the high electricity cost of the self regulating heating cable, create a reasonable external environment and reduce the “working pressure” of the heating cable.
Connect the electric heating to the instrument
In the instrument antifreeze electric heating project, many users have operational misunderstandings. It is a wrong operation method to connect the self regulating heating cable directly to the instrument.
The control of human interference becomes a more frequent start-up of the machine, which will not only cause a short circuit, but also may induce a fire. So remind customers not to do this.
When choosing self regulating heating cable with a shielding net, the shielding net was not removed, but directly inserted into the junction box; in an open-air environment, the junction box port was damp.
Because the above electric heating accessories were not installed with attention, it would cause the self regulating heating cable short circuit. The correct way is to peel off the shielding net and insert the exposed core belt into the junction box.
The junction box port is damp to avoid rainwater seepage. For specific installation of electric heating accessories, please refer to our “Electric Heating Installation Manual”.
Turns on the electric heating when the pipeline is frozen
Sometimes customers ask why the pipeline is still frozen after using electric heating? After asking clearly, I learned that it was because the customer turned on the electric heating cable when the pipeline was frozen.
At first, it could thaw, but later it had no effect. First of all, the customer misunderstood. The Self Regulating Heating Cable is an electric heating tape used for anti-freezing and heat preservation.
It does not have the function of thawing. It is the same as being sick. You can’t get better by taking medicine after catching a cold.
The above are the six common mistakes I have summarized when installing self-controlled electric heating. I hope it can help the majority of electric heating users use electric heating cables more safely and with confidence.
Please feel free to contact us for further information on heating cable wire.
sales5@lifetimecables.com
Tel/Wechat/Whatsapp:+86 19195666830
Post time: Jul-09-2024
