The distribution box and switch tank of security technology，and The construction site using tertiary distribution by electrical means,The total distribution box,the distance of diatribution box and switch tank.
Requirements for the safe use of distribution box and switch tank:
1:The material of distribution box and switch tank should choose steel plate,Also can choose insulation board, but you can't choose woodiness material.
2:The distribution box and switch tank should be installed correctly and firmly,Cannot be inverted, askew.Stationary distribution box and switch tank at the bottom of the vertical and the ground distance should be between 1.3 m —— 1.5 m.Mobile distribution box and switch tank at the bottom of the vertical and the ground distanceshould be between 0.6 m —— 1.5 m.
3:The power cord into the switch tank, it is forbidden to use plug connection.
4:The distance between the distribution box cannot be far away.The distance of distribution box and switch tank should not exceed 30 m.the distance of Switch tank and electrical equipment should not be more than 3 m.
5:Each electric equipment should have their own special switch tank,Must meet the "one machine, a brake, a leakage, a case of" requirements.It is forbidden to use the same switch directly control two more than two sets of electrical equipment (including strip).Switch tank must be set the leakage protector.The rated current < 30 ma, leakage action time < 0.1s.
6:All distribution box should match the lock, and may not be in the distribution box and switch tank to hook up or plug other electric equipment,switch tank it is forbidden to put sundry.
7:Wiring distribution box and switch box shall be conducted by the electrician operation, non electrical personnel shall not connecting.
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