In wires and cables, t represents copper. 

Wire and cable T

In wires and cables, t represents copper. That is, if the pipeline is straight inside, it is usually necessary to connect the zero line and then the live line, and it can also be measured with a multimeter.

Wire and cable representation

The wire and cable representation method mainly consists of three parts: model, specification and standard number.

Cable model explanation

Insulation type: V represents PVC; X stands for rubber; Y stands for polyethylene; YJ stands for cross-linked polyethylene; Z represents paper. 2. Conductor material: L represents aluminum; T (omitted) stands for copper. 3. Inner sheath: V represents PVC sheath; Y polyethylene sheath; L aluminum sheath; Q lead sheath; H Rubber sheath; F Neoprene sheath. 4. Features: D does not drip; F phase separation; CY oil filling; P lean oil dry insulation; P shield; Z DC. 5. Control layer: 0 None; 2 Double steel strip; 3 Fine steel wire; 4 Thick steel wire. 6. Outer cover: 0 None; 1 fiber outer covering; 2 PVC sheath; 3 Polyethylene sheath. 7. Add ZR before the code of flame-retardant cable; Add NH before the code of fire-resistant cable; DH shall be added before the code of fireproof cable.

What wires are prohibited for hydropower transformation?

In order to ensure the smooth operation of the hydropower project, we should also select the appropriate products when configuring the wires. The following are the precautions for configuring the wires in the hydropower transformation. 1. When we choose and buy wires, if the price is lower than the normal market price, we should not buy them. Normally, we will go to large and regular shopping malls. However, if we are not very clear, we can also consult professional personnel. Now most of the wires on the market are domestic, and the brands are different, so the price is also different. The higher the normal performance-price ratio, the better the quality, and the excellent technology and materials. Therefore, under the condition of sufficient funds, Give priority to products with high cost performance; 2. Check the brand of the wire again. Because the wire is related to the safety of electricity in our daily life, we must give priority to brand products, so that even if there is a problem in the future, we can contact after-sales personnel to repair; 3. Then check whether the wire core is copper core, and the copper wire can't be too thin, otherwise the quality is not up to standard. Because the wire core is too thin, it can not guarantee the conductivity, and it is easy to have leakage accidents, so the thick copper wire should be preferred when purchasing.