Explosion-proof distribution box structure requirements 1. proof distribution box junction box Ⅱ grade insulation material level of not less than 6 mm clearances, creepage distance of not less than 10 mm. 2. proof distribution box made of cast aluminum alloy shell material magnesium content of not more than 6% (by mass percent). 3. proof distribution shall be provided with internal and external grounding screw inside grounding screw size should be no less than M6, external ground screw size should be no smaller than M8. The explosion-proof distribution box housing should be provided in a prominent place clearly, permanently embossed sign "Ex". EX-- is proof of the total mark, English Explosionp-roof abbreviation. With this mark it shows that the product is explosion proof distribution box Which is good, it can be applied to specific dangerous places 5. proof distribution box flameproof joint with the housing volume corresponding to the minimum and maximum gap width L ic ⅡB category shall comply with GB3836.2-2000 in Table 3, ⅡC class specified in Table 4, the joints on the inside of the housing from the fastening bolt holes l GB3836.2-2000 in 5.2.6 should be consistent with the provisions joints surface The average roughness Ra of not more than 6.3μm. All metal parts black transparent adhesive member 6. direct distribution box observation window in the lid opening, from the inside to the outside of the flameproof enclosure by gluing joints shortest path is not less than 10 7. proof distribution box must have corrosion protection, surface coating off phenomenon may not have. 8. proof distribution box flexible operating handle must operate, reliable operation, and should have a clear "minute", "close" flag. 9. The distribution box should be set up manufacturing materials nameplate and warning signs, nameplates and warning signs with brass or other corrosion-resistant chemical. 10. For service use a professional tool repair outer shell 11. The distribution box silver powder topcoat paint. Explosion-proof joints distribution box painted 204-1 replacement anti-rust oil. Benefits proof distribution box distribution box type currently vary how much proof distribution box, usually used in home home distribution box, humid place necessary stainless steel distribution box, flammable and explosive proof distribution crankcase explosion distribution box manufacturers recommend, for aesthetic and the production of glass distribution box, dark place in the night with the lighting distribution box, as well as an upgraded version of the explosion-proof lighting distribution box. Next we take the necessary flammable and explosive proof distribution box to explain. What distribution box is it? Distribution box is used to allocate adequate proof power distribution box, so that the switching operation of the circuit can be simpler, filled the circuit, the circuit can be directly observed in the conduction. So for the distribution box, the proof distribution box the name suggests is to prevent an explosion of the distribution box. To be safe to have a proof distribution box is necessary, especially some of the more dangerous places, such as: petroleum and chemical industry or the military, etc. These are explosive risk is high places, for safety reasons the electrical box assembly more should mounted explosion-proof power distribution box. Original proof distribution box which now basically type of protection, are specially treated, the enclosure also generally increased safety, can be said to be foolproof distribution box. Although what kind of occasion for what kind of product, but proof distribution box can be applied in any place, even if not explosive dangerous places can also be used indoor and outdoor are possible. Some of the streets safe for distribution boxes installed masses of residents are also proof power distribution box. So in recent years, development has been proof distribution box to the rise is because of these reasons. Proof distribution box Quick Installation | Professional well-known manufacturers Koretoyo explosion | Wuqing proof power distribution box by Zhejiang Koretoyo explosion-proof electrical Co., Ltd. Tianjin offices. Zhejiang Koretoyo explosion-proof electrical Ltd. Tianjin Office (www.tjfangbao.com) is Tianjin, explosion-proof lighting leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs . Explosion in Koretoyo leadership with the staff warmly welcome all inquiries negotiations to create Koretoyo better future proof.