What is the installation requirements for low voltage distribution enclosure?
What is a distribution box?
It is the distribution box of the total circuit of all users. Its working principle is based on measuring the assembly of measuring instruments on the enclosed or semi-enclosed metal cabinet or a screen under the rules of electric wires to protect the equipment and auxiliary equipment to form a low-voltage power distribution equipment instrument.
In normal life and work, the circuit can be switched manually or automatically, and it can also be opened or disconnected. In the event of a malfunction or abnormal operation, an alarm or a circuit protection device is cut off. The measuring instrument can display various technical parameters in the operation of the system, and can adjust certain electrical parameters to prompt or send out signals that deviate from the normal management of work and life.
The distribution box is easy to manage and facilitates maintenance when the circuit fails. Power distribution boxes and power distribution cabinets and power distribution boards are complete sets of equipment for centralized installation of switches, instruments and other equipment. Commonly used distribution boxes are made of wood and iron plates, which consume a lot of power, so more iron is used. Of course, the distribution box can also conveniently stop and transmit power, and play a role in measuring and judging shutdown and power transmission.
According to the structural characteristics and usage classification, it can be divided into the following three types:
01
Fixed screen switch control equipment, usually called a switchboard or power distribution panel, is a kind of screen-locked switch technology device, which has an important role in protecting the front part, and can still touch the live parts on the back and sides. , But the protection level is low, and it can only be mainly used for industrial and mining enterprises with low power supply continuity and low reliability.
02
Protect the switchgear, that is, the low-voltage switch is enclosed on all sides except the mounting surface. The electrical system components such as switch, protection and monitoring of the cabinet are installed in a closed enclosure made of steel or insulating structural materials. There can be no isolation measures between the circuits in the cabinet, and grounded metal plates or insulating plates can also be used for isolation. Normally, the main door switch and the operating mechanical switch can be interlocked. In addition, there are switch cabinets (ie consoles) of the environmental protection management platform, and the panel data is equipped with electrical appliances such as control, measurement, and signals.
03
Drawer switch control equipment. This kind of switch cabinet is made of steel plate into a closed shell. The electrical and electronic components of the import and export circuits are installed in the extractable drawers to form a functional analysis unit that can complete its own power supply tasks in a certain way. It is between the functional unit and the bus or cable. , The functional board made of grounded metal plate or plastic is divided into three areas: bus bar, functional unit and cable. Among the functional units, the switch cabinet drawers have high reliability, safety and interchangeability, and are suitable for industrial and mining enterprises and high-rise management buildings that require high reliability of the power supply system.
Distribution box installation requirements and specifications
one
Determining a reasonable installation location according to the actual needs of the site, standardizing the installation height, and firmly installing the distribution box are the basic skills that a qualified electrician should possess;
two
The iron distribution box must be painted with anti-rust paint first, and then painted with two coats of gray paint. Various iron parts buried in advance should be painted with anti-rust paint and be grounded clearly and reliably. When the panel leads, the panel wire hole is smooth and free of burrs, and the metal panel should have an insulating protective cover;
three
The distribution box should not be installed in a humid, steamy, or corrosive place. It is generally installed behind the door or in a place where the upper part of the shoe cabinet is easy to open. The distribution box should be equipped with leakage circuit breaker, with overload protection function, divided into several routes to control the lighting and air-conditioning sockets, and the circuit should ensure the normal use of the load.
Zhongfeiya Tech makes sheet metal fabrication products. For example, laser cutting parts, bending parts, welding parts.Our metal electric enclosures can be made of stainless steel, carbon steel. aluminum, galvanized steel. etc.
Most Popular is electric box enclosure, metal battery cabinet welcome in Australia, USA, please Contact Us for more details
Pls Send ZFY TECH your drawing or sketch, we can make sample for your testing quality before mass production. For custom metal enclosures,email zfymeterbox@aliyun.com .Or visit https://www.zfymeterbox.com
