Electrical tape is used for electrical wiring and wire head insulation, involving electrical safety, so, choose a roll of good insulation tape, is every electrician to face the problem, the market PVC electrical tape many, how to choose?

First, starting with the appearance of the tape, a good roll of electrical tape should be evenly colored, the section should be flat, there is no convolution, and there is no glue spillage, because if there is glue spillage, the glue of this tape is proof that the old. The use of this kind of tape around the thread, how long will release itself, resulting in serious consequences of leakage.

Then, we can pull the tape and feel the adhesive force and adhesive of the tape with our hands. Generally, the adhesive tape can be stripped with moderate strength. If it is too light, it is not good to wrap the wire. If it is too heavy, the worker can not pull the tape. And it is easy to pull the tape. The adhesive surface is more viscous, but it is not as sticky as possible, because in the case of rubber, the rubber surface is rough to prove that the glue is very bad, and the glue is easily rotten.

Finally, we stretch the tape twice as hard, and look at the reverse whitening of the tape. If the color of the tape does not change or only slightly changes, the substrate of the tape is not added or only a little filler is added. If the color of the tape becomes very white, it proves that the manufacturer has added a lot of fillers to the PVC substrate to reduce the cost, which reduces the insulation performance of the tape.

Therefore, a roll of flat, moderate viscosity, no or only a little anti-white electrical tape, is a roll of good electrical tape.