What happens to the short circuit in the distribution box?

Although the role of explosion-proof distribution box is huge, due to the development of our country soon, the majority of manufacturers from the transformation of the processing plant, its production technology has yet to be improved, explosion-proof distribution box quality problems are also more common, we need to know about this . Then, in the environment of explosion-proof power distribution box, its quality problems are mainly reflected in where? Below, Xiao Bian made an introduction for everyone.

Explosion-proof distribution box quality problems mainly reflect:

1. The inspection of the explosion-proof distribution box does not meet the requirements of the standard:

Most manufacturers do not test the shell, especially the cast iron shell material; the pressure test of the flameproof shell also exists in name only, from the whole inspection into a sampling inspection, and some are simply not detecting, not playing hydraulic pressure; Severely exceeded; some of the fasteners on the flameproof enclosure are not fastened securely

2. The process of the explosion-proof distribution box does not meet the requirements of the standard. For example, the unevenness of the explosion-proof surface is not bad, and arc-resistant paint is not painted in the explosion-proof cavity.

3. The explosion-proof structure of the explosion-proof distribution box does not meet the requirements of the standard:

If no internal or external grounding terminals are provided; electrical clearances and creepage distances are small; redundant steel inlets are not provided with steel blocking plates or replaced with paper blocking plates; the width or matching clearance of the flameproof surface exceeds the standard, and the explosion-proof surface The seal gasket is arbitrarily added between the two; the hardness of the rubber sealing ring used in the introduction device does not meet the requirements; the shell of the die-casting product for which individual enterprises do not comply with the standard requirements.

4. The material of the explosion-proof distribution box does not meet the requirements of the standard:

For example, the grades of aluminum alloy shell materials do not meet the requirements of the standard, and some companies even use scrap aluminum or miscellaneous aluminum die-casting shells to earn higher profits; some brands of cast iron shell materials do not meet the requirements; nameplate materials Does not meet the standard requirements.

For China's explosion-proof distribution box market, the explosion-proof distribution box quality problems mainly reflect the above four. In order to prevent the purchase of unqualified explosion-proof distribution box products, explosion-proof reminds you that when purchasing explosion-proof distribution boxes, try to choose large companies to cooperate, such as explosion-proof, which can effectively avoid the purchase of unqualified products.