Supply wholesale CBCH series explosion-proof wiring boxes with reliable quality and heavy weight

Product Name B Explosion-proof Wiring Box
The cities that Zhejiang Xusheng Lighting Co., Ltd. mainly sells are Shanghai, Zhejiang, Jiangsu, Anhui, Inner Mongolia, Xinjiang, Chongqing, Yunnan, Shaanxi, Hebei, Henan, Hubei, Hunan, Jiangxi, Sichuan, Guangdong, Guangxi, Hong Kong, Jilin, Heilongjiang, Liaoning, Ningxia, Gansu, Shaanxi, Shandong, Fujian, Hainan Waiting places. Over the years, we have established long-term cooperative relationships with hundreds of customers based on our good quality and reputation.
Scope of application
◆ Suitable for explosive gas environments
◆ Suitable for ⅡⅡBⅡ explosive gas environments
◆ Suitable for combustible dust environments only
◆ Suitable for temperature The environment of the group
◆ Suitable for explosive hazardous environments such as petroleum mining, storage, chemical industry, medicine, military industry and military facilities.
Product Features
◆ The shell materials are die-cast aluminum alloy and cast steel
◆ The surface of the shell of aluminum alloy products is high-voltage electrostatic spraying, and the surface of cast steel products is galvanized
◆ Combination type Diverse to meet various on-site wiring needs
◆ Stainless steel exposed fasteners.
Technical parameters
Implementation standard BB
Rating mark II
Protection level
Anti-corrosion level
Product advantages
This product is an increased safety structure< br/>The shell is made of cast aluminum alloy, using advanced high-temperature one-time die-casting molding process, with smooth surface and exquisite appearance. The metal structure has high density, no bubbles or blisters inside, and good impact resistance (up to 100%). The shell has good explosion-proof performance, and the permanent explosion-proof mark is directly pressed on it
The product shell is first cleaned by high-speed shot blasting, and then high-voltage electrostatic Spraying process, the plastic powder has strong adhesion, and has good anti-corrosion, anti-oxidation, anti-static and anti-sunlight properties
The joint surface of the product body and the cover is sealed with rubber, which has good sealing and extremely waterproof performance
Structure Various forms, customers can choose according to their needs
The material of this product is cast steel, customers can choose according to their requirements
Explosion-proof wiring box applicable scope group meaning
Division of hazardous areas of explosive gas environment< br/> Different countries and regions divide explosion hazard areas according to their own standards. Our country divides explosive gas environments into districts and districts based on the frequency and duration of the occurrence of explosive gas mixtures. (Consistent with the International Electrotechnical Commission
An environment in which an explosive gas mixture appears continuously or for a long time in the area.
An environment in which an explosive gas mixture may occur in the area during normal operation.
An environment in which an explosive gas mixture is unlikely to occur in the area during normal operation or even if it does It is also an environment where explosive gas mixtures exist only for a short period of time.
Zones generally only exist in internal gas spaces such as sealed containers and storage tanks. In the actual design process, zones rarely exist, and most cases belong to zones.
Explosion-proof electrical equipment is divided into two categories
Category I electrical equipment for underground coal mines
Category II electrical equipment used in places other than mines
Category II electrical equipment, according to its applicable The maximum test safety gap or minimum ignition current ratio of explosive gas mixtures is divided into three categories: II, IIB, and II and is divided into six groups according to their maximum surface temperature.
Explosive gas mixtures are grouped according to ignition temperature, see table.< br/> Explosive gas mixtures are classified according to their maximum test safety gap or minimum ignition current ratio (R), see table.
Table
Group
Ignition temperature (℃
Table
Category
Maximum test safety gap
Minimum ignition current ratio
Ⅱ

ⅡB

Ⅱ

Properties: Under specified test conditions, the ratio of the minimum ignition current of an explosive gas vapor mixture to the minimum ignition current of an explosive methane mixture. China stipulates that gas vapor hazardous substances are classified into Class II [forbidden words], Class IIB and Class II according to the minimum ignition current ratio. Class. The minimum ignition current ratio is Class II[prohibited word], and Class IIB is Class II. For example, ethane, vinyl, and acetylene are Class II[Prohibited Word], Class IIB, and Class II hazardous substances respectively.
The products produced by Zhejiang Xusheng Lighting Co., Ltd. must be high-quality
Same business, different services, Zhejiang Xusheng Lighting Co., Ltd. is more professional
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Our advantages are complete product specifications, good quality, low price, service, patience and free follow-up maintenance in the future
Zhejiang Xusheng Lighting Co., Ltd. welcomes you
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Our company's products are original and authentic, based on brand, quality, and price standards. They are by no means imitations or handicrafts. After purchasing, we will help you handle the parameters as soon as possible during working hours. The following factory instructions are used as standards for domestic distribution. Merchants can contact the company by phone for discounts based on quantity. Zhejiang Xusheng Lighting Co., Ltd. has always received strong support from major companies. The company adheres to good product quality and wins more