Home decoration wire how to choose

There are many varieties of wires in the market, and the brands of wires are also numerous. According to their own electricity load to purchase the right wire. Since the production process of wire manufacturing is relatively simple and the capital investment is not large, it is often referred to as the “short-quick-fast” project. Consumers lack sufficient expertise in understanding regular products, and therefore some manufacturers have fought to “put the ball behind the ball”. With regard to a large number of wire products, in the end how to choose the wires that meet the national standards and make people feel comfortable and satisfied, we now understand some of the basic knowledge of purchasing.

Look at the appearance. Qualified products have a flexible (sheath) layer that is flexible, ductile, and stretchable. The surface layer is dense, smooth, and has no roughness, and has a pure gloss. The insulation (sheath) layer surface should have a clear and rub-resistant sign. Products made of non-standard insulating materials have a transparent feel, brittleness, and no toughness.

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Look at the insulation layer. The national standard has the thinnest point of the uniformity of the wire insulation layer, and the average thickness has a clear data specification. The normal wire insulation has a uniform thickness, is not eccentric, and is tightly packed on the conductor.

See the certificate. The standard product certification shall indicate the manufacturer's name, address, after-sales service telephone, model number, size structure, nominal cross-section (that is to say usually 2.5 square, 4 square wire, etc.), rated voltage (single core wire 450/750V, Two-core protection sleeve 300/500V), length (national standard length 100M ± 0.5M), inspection staff number, manufacturing date, and the national standard number or certification mark of the product. Of particular note is the formal product indicated generally said single-core copper core plastic line model for the 227 IEC01 (BV), rather than BV, please purchase to pay attention to identify.

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Look at the core. Pure copper raw materials are used to produce and undergo stringent drawing, annealing (softening), twisted wire cores. The surface should be bright, smooth, free of burrs, flat and compact, flexible and tough, and not easily broken.

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