How to distinguish between genuine and multicore copper wires?
Is it a single core or multicore cable?. In fact, as long as the square is equal to the number that can be used, more cores generally smaller cross-sectional area, soft, practical lighting circuit installation, single wire convenient wiring, the cross-sectional area is relatively large, suitable for large power line socket etc.. Now the wire market successfully, the quality of the general consumers to find the best uneven in quality, a large shopping malls, shops to buy, do not buy cheaper because some unknown manufacturer of wire to avoid all kinds of trouble after installed after the.
Several poles, three-phase or single-phase, what type?. You can't answer it. Do you paint the paint? If it is the best, the strength, the strength of the machine, the setting time, the drying condition, etc..
The quality of the copper wire into identification: more than 1 core cable, copper wire, light is not flexible, resilient is in miscellaneous copper production of renewable materials, the core wire number and diameter agree with the nominal value. Plastic skin soft, less impurities. 2 single stranded hard wire, copper wire bright, repeatedly bending not cracking, purple color, pale pale, impurities. Authentic should be electrolytic copper, plastic skin wrapped tight, skin like casing, loose, is poor production conditions. Other strict diameter dimensions are key technical objectives. For reference.
