1. Understand the user needs to select the most suitable for users of the cabinet type the actual situation. 2. Try using well-known manufacturers of domestic container type, not blindly choose the technical parameters relatively high import and distribution of high quality proof cabinet power distribution box, which could easily lead to a waste of resources. 3. Due to the distribution of imported brands and cabinet cabinet adopted the main components are the same. So choose to import distribution cabinet, should pay attention to the parameters of the main components, it must be able to meet user needs. 7 distribution box low voltage cable into the outlet selection, selection of the cable should meet the technical requirements. For example 30kVA, 50kVA transformer distribution box into the line using corrosion proof VV22-35 × 4 cable distribution box, shunt outlet using the same specifications VLV22-35 × 4 cable; 80kVA, 100kVA transformer, distribution box into the line respectively using VV22-50 × 4, VV22-70 × 4 cable outlet splitter were using VLV22-50 × 4, VLV22-70 × 4 cable, its cable crimping copper and aluminum lugs and then bolt distribution box internal wiring trailer coupling connections. 8 fuses (RT, NT type) selection. The total distribution transformer low-voltage side overcurrent protection fuse rated current explosion distribution box, should be greater than the low-pressure side of the distribution transformer rated current, and generally 1.5 times the rated current explosion distribution box material, the melt should be rated overload multiples and fuse characteristics determined by the transformer allowed. Outlet circuit overcurrent protection fuse melt rated current and should not be greater than the total current protection fuse rated current, rated by melt loop normal maximum load current selection, and should escape the normal peak current proof distribution Box Shenyang, Chittagong proof distribution box, 20-year Koretoyo explosion-proof electrical by Zhejiang Koretoyo provide Ltd. Tianjin Office. Zhejiang Koretoyo explosion-proof electrical Ltd. Tianjin Office (#) strong, credible, in Tianjin's proof lighting industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving Koretoyo innovative ideas will lead into the brilliant explosion and you work for a better future!