How To Identify The True Copper Wire Of Copper Clad Ground Rod
How to identify ground rod 3 4 x 10
1. Look at the plastic sheath
The plastic sheath of regular wires is soft and smooth, with uniform color. On its surface, several items on the product certificate should also be printed, such as: specifications, factory name and address, etc. At the same time, the handwriting is clear and not easy to erase. The insulation layer of counterfeit wires seems to be very thick, but in fact, most of them are made of recycled plastic from optical cables. Over time, the insulation layer will age and leak electricity.
2. Look at the length
For the question of whether the length is enough, you can first count the number of turns, then measure the length of each turn, and then multiply the length of each turn by the total number of turns. The number obtained is the actual length of the wire.
3. Look at the product label
When purchasing wires, you should buy them in regular shopping malls and look for the national electrician certification mark. For wires produced by regular manufacturers, there will be a certificate under each bundle of transparent packaging paper. The content on the certificate should include: factory name and address, certification number, specifications, wire length, rated voltage, etc. Counterfeit and inferior wires are often "three-no products", but there are also ambiguous origin marks on them, such as Made in China, Made in a certain province or city in China, etc., which is actually equivalent to not marking the origin.
4. Look at the copper wire
When purchasing, you can cut off a small section of the plastic outer skin and check the copper wire inside. Touch the top of the copper wire with the palm of your hand. The copper core of a qualified copper core wire should be purple-red, shiny, and soft to the touch. The color of the copper wire of a regular wire is bright and reddish, while the copper core of a counterfeit copper core wire is purple-black, yellowish or white, with many impurities, poor mechanical strength, and poor toughness. It will break with a little force, and there is often a phenomenon of broken wires in the wire. When checking, just peel off one end of the wire by 2cm, and then rub the copper core with a piece of white paper. If there is black matter on the white paper, it means that there are more impurities in the copper core. The color of inferior copper wire is black and the hardness is relatively large. Roll ground rod 8 ft into a small circle. If threaded copperbond earth rod has too many impurities, such as copper-clad steel wire, it will rebound. If the copper is of good quality, it will not rebound and form a circle. Then slowly straighten the copper wire to restore it. When it is completely restored, it proves that the copper wire material is really good.
