Introduction:
LWHG series distribution mcb box is a kind of modularized apperance with small volume industrial electrical box. Based on the advantages of being easy to install, it has excellent strucure and higher performance,and it's widely applied in building electrical distribution system's installation, industrial
electrical circuit and house rebuild fitment etc.
One, the danger of low-voltage distribution mcb box
1. It is the lowest level of control and protection facilities in the power system, and has a large opportunity to contact with people;
2. Large number, wide distribution, not easy to govern;
3. Easily affected by site conditions and in constant change;
4. Low-voltage distribution box is mainly metal shell, easy to occur leakage and other faults;
5. Many distribution boxes are in a bad environment, easy to aging or damage.
Two, the selection of low voltage distribution mcb box
The protection type of low-voltage distribution box should be selected according to the conditions of the workplace:
1. In the relative humidity is not more than 75%, and there is no dust, no corrosive gas or steam, no inflammable and explosive material is less dangerous place, the low-voltage distribution box can choose open type.
2 in the relative humidity of close to 100% of the special humid places and corrosive gas or steam places should choose protective type.
3. Dustproof distribution box should be selected in dusty places that can produce a large amount of dust.
4. Dust-proof type should be selected in h-1 and H-2 fire danger places with combustible liquid and suspended or accumulated combustible dust or combustible fiber; Optional protection type in h-3 fire danger place with solid combustible material.
5. Suitable explosion-proof distribution box must be selected in explosive dangerous places.
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