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Choose good electrical tape

by:Kint      2020-04-14
Choose good electrical tape electrical tape to teach you to pick a good tape: electrical tape is used for wire wound and the insulation of the thread, involve the electric safety, so, choose a good insulating tape, is each electrician to face problems, many on the market of PVC electrical tape, how do you choose? First, start from the appearance of the roll of tape, a roll of good electrical tape, and color should be uniform, cross section should be flat and not convex volumes, there is no glue overflowing, because if have glue overflow, prove the tape glue has been aging, use the tape around the threads, not the long time will own loosen, forming the consequences of the leakage. Then, we can spread out the tape, feel the tape by hand spread out the peel strength with the sticky glue, generally speaking, the adhesive tape peel strength can moderate, too light to owe good round wire, very difficult to spread out the workers and simple pull tape deformation. Rubber surface viscosity is better some, but also not the glue the better, because in terms of the characteristics of rubber, rubber surface do rough proof glue do very bad, is very simple rotten glue to stick. Finally we put the tape twice as hard to long, look at the tape reverse condition, if the color of the tape does not change attack may only attack a little change, prove the tape base material without maybe just a little bit of filling material, if the tape color becomes very white, prove that the manufacturers to reduce costs, add a lot of filling material in PVC base material, reduces the tape insulation function. So, a roll of flat section, moderate viscosity, there is no or only a little white electrical tape, is a roll of good electrical tape. The power cord connector is divided into 'ten' word connection, the character 'one' connection, 'ding' word connection, etc. Joint should be put in mind, smooth without a thorn. Before thread broken, should press gently with wire cutters, first around to mouth, and then from side to side, thread will be submissive to the disconnect joint. If the connector in a dry place, should use insulation cloth wrapped two layer first, and then wrapped in plastic tape ( Also called PVC adhesive tape) Two layers, the second with J - 10 insulating adhesive tape stretched around 200% around two or three layers, and finally up two layers of plastic adhesive tape. Due to the direct use plastic tape shortcomings of: plastic tape moment open a long plastic displacement, plastic easily; Electrical load weight, fever, joint plastic electrical tape is easy to melt to shorten; Mains connections in the terminal box, each other connector have burr, simple stamp empty plastic tape, etc. , these concerns directly endanger the personal safety, caused by short circuit may be abnormal, the formation of a fire. And use black insulation tape will not more than present conditions. It can have a certain strength, flexibility, long time in tapping, affected by time and temperature and dry type fixed, not falling, and flame retardant. Moreover, with black insulation tape wrapped up again after tape to moisture, rust. Has its drawbacks as well as insulating adhesive tape, however, it has good waterproof function but easy to break, so it should be wrapped in two layers of plastic tape as a protective layer, the insulation of the joint and the joint since stick with each other not sticky, function better. Institute of electrical tape using the method, used correctly, to avoid leakage, cut the hazards.
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