ZMS Cable and Accessories

In order to eliminate the unsafe factors of the electric welding machine and avoid the occurrence of electric shock accidents, the welder should follow the following points when using the electric welding machine to weld cables : The electric welding machine is required. 1. Welding tongs—Use qualified welding tongs. There should be a protective cover over the terminal stud. The welding tongs must have good insulation properties, and it is strictly forbidden to use self-made simple welding tongs. 2. Welding cable—When using multi-strand thin copper wire without a connector cable, the welding cable should be connected with terminal blocks to the welding machine terminals. To prevent loose contact, overheating and sparks caused by random winding . There should be a protective cover over the terminal stud. The length of the welding cable is generally not more than 20~30 m. If it is too long, the voltage drop of the wire will increase. When the welding cable passes through the channel,...

OPGW fiber optic cable is mainly used in 500KV, 220KV, and 110KV voltage level lines , affected by line blackout, security, and other factors, and mostly used in new lines. We should consider the following points when choosing an OPGW optical fiber cable :  1. the requirements of meteorological conditions, the requirements of its own tensile strength, and the requirements of the allowable design load of the tower should be met. 2. The main technical data to be considered in the design of OPGW are: fiber type, fiber core number, fiber diameter, fiber cross-sectional area, fiber unit mass, ultimate tension strength, short-circuit current, DC resistance, modulus of elasticity, coefficient of thermal expansion, average annual operating stress, minimum bending diameter, maximum coil length, etc. 3. OPGW fiber optic cable can be selected under the condition that the ambient temperature is +15℃, no ice, no wind, and the arc droop of another ground wire is kept consistent. 4. Determination...