Application of copper bars
Release time:
2023-05-25 17:44
Due to the superior conductivity of copper compared to aluminum, copper bars have been widely used in electrical equipment, especially in complete power distribution devices; Generally, copper bars are used for the A, B, C, N phase busbar and PE busbar in the distribution cabinet; Copper bars are generally marked with phase color letters or painted with phase color paint during use. Phase A copper bars are marked with "yellow" color, Phase B with "green" color, Phase C with "red" color, Phase N with "light blue" color, and PE bus bars with "yellow green" dual color.
Copper bars are mainly used on primary lines (high current phase lines, zero lines, and ground wires all use copper bars). Copper bars are used for the connection of high current primary components on electrical cabinets. For example, a row of electrical cabinets is connected to the main busbar between cabinets, and the main busbar is divided into branch busbar on the switch electrical (isolation switches, circuit breakers, etc.) of each cabinet. Copper bars can be tinned or bare, and the connection of copper bars in the electrical cabinet can be treated with tin plating, embossing, or adding conductive paste. The spare parts can be protected by heating shrink sleeves, and some are also insulated with paint. The main consideration for using copper bars is the current carrying capacity. Choose a suitable copper bar based on the current size, and tighten the screws at the connection, otherwise there may be a possibility of melting the copper bar when the current is high.
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