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电气安装工程中,电线的选择是非常关键的。电线质量的优劣,关系到千家万户的安全。这里介绍一些简单的鉴别伪劣电线的方法。1.观察颜色。优质电线绝缘层色泽鲜艳,表面光泽度好,无气泡,无杂质,导体处于绝缘层中间,无偏心现象。2.线心结构正确,线径足够。目前,原材料紧张,有些工厂生产的电线规格偏小,导线不够规则,致使导体载流量不足,甚至造成火灾事故。电线产品的标牌中,一般除了截面积外,还应标有如1/1.76、20/0.15等,前者系由1根1.76毫米的导线组成,后者由20根0.15毫米的铜丝束组成。用
In electrical installations, the choice of wires is critical. The quality of wire quality is related to the safety of millions of households. Here are some simple ways to identify inferior wires. 1. Observe the color. High-quality wire insulation layer bright color, surface gloss, no bubbles, no impurities, the conductor in the middle of the insulation layer, no eccentricity. 2. The core structure is correct and the wire diameter is sufficient. At present, raw materials are strained. Some factories produce wires with small specifications, and the wires are not regular enough, resulting in inadequate current carrying capacity of the conductors and even causing fire accidents. In addition to the cross-sectional area, the label of wire products is generally marked as 1/1.76, 20/0.15, etc. The former is composed of a wire of 1.76 mm, and the latter is composed of 20 copper wires of 0.15 mm. use