Thickened white base small box

Small white base box

Base box is widely used in hotels, apartments, high-rise buildings, ports, stations, airports, warehouses, hospitals, factories and other building lighting and small power control circuits. It is suitable for indoor lighting and distribution lines with AC 50Hz, AC single-phase 240V, three-phase 450V and below, and current 250A and below. Used for line overload protection, short circuit protection and line switching. This equipment is suitable for civilian or non-professional use

The use of the base box requirements: easy to manage, conducive to the maintenance of circuit failure. Base box, Distribution Cabinet, switchboard, etc. It is a complete set of equipment for centralized installation of switches, meters and other equipment. Commonly used foundation boxes are made of wood and iron plates. Now the electricity consumption is quite large, so the iron is used more. The purpose of the base box: of course, it is convenient to stop the power supply, and it plays the role of measuring whether the power supply is stopped.

The base box is mainly divided into two parts:

A complete set of components, that is, the base box shell and related accessories.

Electrical components and related accessories, that is, air switches and their required accessories.

The leakage protection organ of the base box has the function of leakage protection. The main function of the leakage protection device is that people will trip when they contact the live line to ensure personal safety; If the electrical equipment is poorly insulated and leaks into the housing, the leakage protector will also trip to avoid electric shock caused by human touch. At the same time, it has the functions of current break, overload protection and short circuit protection. The working principle of the leakage protection switch is a zero-sequence current transformer, which consists of a permalloy core and a secondary coil wound around a toroidal core. The phase line and the neutral line of the power supply pass through the round hole to become the primary coil of the zero-sequence transformer. The rear outlet of the transformer is the protection area. Correct understanding of the relevant knowledge of the base box can be more convenient in the actual construction.

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