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To ensure the construction quality, especially the production quality of the cable head must strictly meet the specified requirements.

When the cables cross each other, the high-voltage cable should be under the low-voltage cable.

According to the national standard, the surface of the wire should have a continuous mark of the manufacturer's name, product model and rated voltage.

The wire and cable products used in the power system mainly include overhead bare wires, busbars (bus bars), power cables (plastic cables, oil-paper power cables (basically replaced by plastic powe...

Looking at the packaging, the wires of the national standard are often made better, neat, and have a sense of quality in the hand.

Appearance standard, the wire must have the certification mark, manufacturer, wire diameter, etc., and the ground wire must have a yellow-green insulating layer.

The vast majority of wire and cable products are products with the same cross-section (cross-section) shape (ignoring errors caused by manufacturing) and long strips, because they are used as lines...

The main features of this type of products are: pure conductor metal, no insulation and sheath layers, such as steel-cored aluminum stranded wires, copper-aluminum busbars, electric locomotive wire...

Wire and cable are wire products used to transmit electrical (magnetic) energy, information and realize electromagnetic energy conversion.

The optical fiber cable is processed by a plurality of single optical fibers through coloring, one-stacking into a ribbon and two-layered optical fiber ribbon as a unit.

Outdoor optical cable mainly has three types of structure: central tube optical cable, layered optical cable and skeleton optical cable.

Indoor optical cables are generally made of polyvinyl chloride or flame retardant polyvinyl chloride. The appearance should be smooth, bright, flexible and easy to peel.