Shanghai Chuannuo Explosion-proof Electric Apparatus Co

Explosion-proof distribution boxes are divided into explosion-proof lighting boxes, explosion-proof power boxes, explosion-proof control boxes, explosion-proof control cabinets, explosion-proof distribution cabinets, explosion-proof operation boxes, explosion-proof boxes, explosion-proof starting boxes, explosion-proof motor starters, and explosion-proof soft starts. , explosion-proof frequency conversion box, explosion-proof star-delta starter box, explosion-proof auto-decompression starter box, explosion-proof magnetic starter box, explosion-proof power socket box, mobile explosion-proof box, explosion-proof distribution box, etc., provided for various workplaces that require explosion-proof facilities Safety protection measures

, usage, working conditions
Route
Series explosion-proof lighting (power) distribution box (hereinafter referred to as distribution box) is suitable for class or class, group The following levels and groups of areas and zones in dangerous places containing explosive gas environments are used in AC, rated voltage or circuits to control the starting and stopping of three-phase asynchronous motors, and can also be used to control motors remotely with overload , short circuit protection function.
Working conditions
The altitude does not exceed
The ambient air temperature is not higher than +℃, not lower than ℃, and the average value within hours does not exceed +℃
Surrounding air The relative humidity does not exceed (+℃)
In an environment without gas or vapor that damages the insulation
Pollution level
Installation category, class
For outdoor distribution boxes, Maximum solar radiation/㎡, rainfall intensity/
Places without significant shaking and severe shock and vibration
Structure and characteristics
This distribution box is universal according to the first part of electrical equipment for explosive gas environments. Requirements", Electrical Equipment for Explosive Gas Environments Part 2 Explosion-Proof Type", Electrical Equipment for Explosive Gas Environments Part 3 Increased Safety Type" standards are designed and manufactured, passed the inspection by the national designated inspection agency, and an explosion-proof certificate was issued.
, the shell is made of cast aluminum alloy die-casting, and the surface is sprayed with plastic. The main cavity adopts a flameproof structure, and the wiring cavity has an increased safety structure. Circuit breakers, AC contactors, thermal relays, explosion-proof control buttons, and explosion-proof can be optionally installed inside. Signal lights, etc. The distribution box adopts a modular design, and various circuits can be freely combined. The selection of electrical components can be determined by the user. It has a compact structure and beautiful appearance. The incoming and outgoing wires can be routed by steel pipes or cables, and the direction of the incoming and outgoing wires can be determined by the user. Depends on the requirements.
The shell of the non-standard distribution box is made of steel plate welding and sprayed with plastic on the surface. It is divided into a main cavity and a wiring cavity, both of which adopt explosion-proof structures. High-breaking circuit breakers and AC contactors can be optionally installed inside. , thermal relays, control buttons, signal lights and other components, can be opened and closed by operating the handle on the shell cover. The action performance is reliable, and there is a switching display signal light. The incoming and outgoing lines can be routed by steel pipes or cables. The direction of the incoming and outgoing lines and inside Components can be determined by user requirements. Other materials and shapes can be customized according to user requirements.
, Main technical parameters
Model

Rated voltage

Main circuit rated current

Number of branches

Branch circuit rated current

Explosion-proof sign

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, Appearance diagram example
The assembly method can be determined according to the user's requirements, and the design can be carried out according to the circuit diagram provided by the user.
, Installation and use
Before installing and using the product, check whether the technical data on the nameplate is consistent with the usage
The front-end power supply must be cut off before installation and maintenance
, Outgoing cables pass through The rubber sealing ring should be tightened with washers and compression nuts to ensure that the seal and cable cannot loosen
If the sealing ring is corroded, brittle, deformed, sticky or has a hardness change exceeding that of the factory during use, it should be reported to the manufacturer in a timely manner Purchase and replace to ensure reliable explosion-proof performance
When disassembling the protection, pay attention to the explosion-proof surface not to be bumped, scratched, or corroded, and apply anti-rust oil regularly
The electrical box must be inspected regularly during use. To ensure its good operation
Professionals are strictly prohibited from opening the cover for maintenance and inspection.
, Ordering Information
When ordering, you should indicate the complete model, name, specifications and order quantity of the product.
For example, / series explosion-proof distribution box, main switch current, sub-switch, station.