Distinguishing welding cables

Today, the application of welding cable is becoming more and more popular, and the market is more and more welding cable types. So, how to distinguish between "national standard" and "nonstandard" of the welding cable?

A look. See whether there is a welding cable product quality system certification, the certification is standard, the factory name, the site, inspection seal, production date, see the wire is printed trademarks, specifications, voltage, etc. Depending on the cross-section of the copper wire, copper products, in bright colors, soft colors, or defective excellence.

Double test. It is desirable that the head wire is repeatedly bent, feels soft, has anti-fatigue strength, is plastic or rubber, and has no cracks of wire insulation, which is a superior product.

Three weight. Good quality cable, the total weight of each 100m in the specified weight range. As a commonly used cross-sectional area of 1.5mm2 plastic insulation single stranded copper core wires and weight per 100m 1.8-1.9kg; 2.5mm2 plastic insulated single stranded copper core and weight per 100m 3-3.1kg; 4.0mm2 plastic insulated single stranded copper core, per 100 parts by weight of the 4.4-4.6kg. Wire weight is not enough, the length is not enough, or too many impurities in the wire.

Four ratios. Due to low production costs, for the inferior wire. Therefore, traders in the sale, often under the guise of low-cost sales, so that people can be fooled. Therefore, at the time of purchase, it is time to pay attention, not to "cheap" and "cheap" business, and ultimately deceived. Five see copper. Qualified copper core wire and copper core should be purple, shiny, and soft feel.

The fake copper core line is purple-black, yellow, or white, impurities more, poor mechanical strength, toughness is not good, a little force will be broken, and there is often a broken phenomenon. Check, as long as you tear the head, and then use a piece of paper on the copper core to slightly rub if the white black material in the copper core can be identified as non-standard welding cable.