PBs series positive pressure explosion-proof distribution cabinet (P) description:

1. Its explosion-proof principle mainly adopts the explosion-proof measures of medium isolation ignition source to achieve the purpose of electrical explosion-proof;
2. This product can be installed with various ordinary detection instruments, analysis instruments, display instruments, monitors, microcomputer touch screens, high-power frequency converters, and ordinary electrical components according to user requirements, and there are basically no restrictions on the user's internal electrical components;
3. It mainly consists of a cabinet, an automatic control system, a gas distribution system, an alarm system, and a power distribution system; The cabinet consists of a positive pressure chamber and a secondary chamber, which is equipped with an automatic control system, an alarm system, and user access cables; Install user's power distribution system components in the positive pressure chamber;
4. It can be customized into box style, piano table style, and cabinet style structures according to user requirements. Cabinet style structures are further divided into upper and lower structures and left and right structures. Box type is generally made of welded steel plates, coated with plastic on the surface, and operated with a front door; The cabinet frames of the piano table and cabinet are welded with standard profiles and sprayed with plastic on the surface. Each joint surface has undergone special sealing treatment; Front door opening operation and rear door opening maintenance. The steel plate material is generally GB710-88 cold-rolled steel plate, or GB3280-84 stainless steel material can be selected according to user requirements;
5. Divided into ventilation type and compensation type according to the intake method. The ventilation type provides uninterrupted and continuous gas supply, and the working heat of the components installed in the positive pressure chamber can be carried away with the gas path, which has good heat dissipation function; Compensation type is intermittent gas supply, with good sealing in the positive pressure chamber and low gas consumption;
6. The user must provide a gas source, which requires purified air or nitrogen gas with a pressure range of 0.2MPa to 0.8MPa; Usually, the instrument air at the user's site can meet the requirements. According to user requirements, a self supplied gas system can also be designed for them.

PBs series positive pressure explosion-proof distribution cabinet (P)