Cable branch box-stainless steel
Metal cable transfer box box body mainly adopts stainless steel material (304) or cold rolled steel plate processing molding. It has anti-seismic corrosion, good sealing performance, beautiful, with all-weather protection function, can meet the outdoor engineering projects in a variety of harsh environments and places. It is widely used in power substation and distribution stations, public and mining enterprises, both sides of the street, garden residential neighborhoods, high-rise buildings, airports, key construction and renovation projects and other outdoor public places in the three-phase low-voltage transmission and distribution system, as a complete set of stereotypical equipment with a cable to the distribution of electrical energy to other users or equipment.
Categories：
Cable Branch Box
Technical parameters
Execution standard: GB/T7251.GB/T7251.2
Rated insulation voltage: AC690V
Rated working voltage: AC400V
Protection grade: IP44
Rated working current：63-630A
Rated short-time withstand: 10KA/S
Application environmental conditions
Air temperature: the maximum temperature of indoor environment does not exceed +40℃, the maximum temperature of indoor environment does not exceed +45℃, the lower limit of ambient temperature is -25℃, the maximum daily temperature difference is 25K;
Pollution level: Ⅲ(indoor)/IV(outdoor);
Humidity: the average daily value of relative humidity is not more than 95%, and the average monthly value is not more than 90%;
Altitude: no more than 1000m above sea level;
Solar radiation intensity: 0.1W/cm2;
Seismic capacity: horizontal acceleration of the landform 0.2g m/s2, vertical acceleration of the ground 0.15g m/s2, sinusoidal resonance of 3 cycles of the safety factor of not less than 1.67.
Cited standards
GB 7251 Low-voltage switchgear and control equipment
GB 14048 Low-voltage switchgear and control equipment
GB/T 20641 Low-voltage switchgear and control equipment, the general requirements of the empty casing
GB 4208 Enclosure protection level (IP code)
GB 4720 Low-voltage electrical and electronic control equipment
Key words:
Cable branch box
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The company mainly operates transformer and distribution equipment such as screens, desks, cabinets, and boxes, as well as transformer and distribution equipment, transformers, switches, automation control systems, etc
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