Also called copper busbars or copper busbars, they are made of copper.

 Their main task is to carry current in the circuit and connect various electrical devices.

 Imagine, without copper busbars, the current would fly around aimlessly, and electrical equipment would hardly function properly.

 Copper busbars truly shine in electrical equipment, especially in complete power distribution systems.

 Whether in large industrial equipment or household electricity, copper busbars play a vital role.

 They are like "highways" in the circuit, allowing current to flow smoothly and unimpeded.

 The reason copper busbars are used instead of copper rods in low-voltage switchgear is that, under the same cross-sectional area and surface temperature, the current carrying capacity of a rectangular copper busbar is greater than that of a copper rod.

 Secondly, for 50 Hz AC, the skin effect penetration depth of copper is approximately 9.3 mm, therefore the diameter of a copper rod must not exceed 20 mm, thus limiting the busbar's current carrying capacity.

 In practical applications, copper conduits are generally used as busbars in switchgear, rather than copper rods.

 Low-voltage switchgear has low voltage but high main busbar current, so the requirements for electrical clearance are not high, but temperature rise control is more critical than for medium- and high-voltage switchgear.

 The temperature rise of the main busbar is particularly important. Therefore, copper busbars are generally used in low-voltage switchgear, rather than copper rods.