The following Guangxi wire cable will take you to understand the key points of wire cable model specification selection.

1. Selection of wire cable models When selecting wires cables, the use, laying conditions safety should be considered; for example, according to the use, it can be divided into power cables, overhead insulated cables, control cables, etc.; according to the laying conditions, it can be divided into Usually plastic insulated cables, steel tape armored cables, steel wire armored cables, anti-corrosion cables, etc.; according to safety requirements, it can be divided into non-delayed combustion cables, flame-retardant cables, halogen-free flame-retardant cables, fire-resistant cables, etc.

2. When determining the wire cable specifications (conductor section), selection conditions such as heat generation, voltage loss, economic current density, mechanical strength should usually be considered. According to experience, the low-voltage power line has a large load current, so first the cross-section according to the heating conditions, then check its voltage loss mechanical strength; because of its high voltage level requirements, the low-voltage lighting line can be selected according to the allowable voltage loss conditions. For high-voltage lines, first the cross-section according to the economical current density, then check the heating conditions allowable voltage loss; for high-voltage overhead lines, the mechanical strength should also be checked.