FRP meter box low-voltage air circuit breakers technical requirements FRP meter box low-voltage air circuit breaker technology requirements Scope: rated insulation voltage 800V, AC 50Hz, rated working voltage up to 690V. Used to distribute power and protect circuits and power equipment from damage overload, short circuit faults. Products must comply with IEC947-2, GB14048.2 standards. Maximum ambient air temperature surrounding normal operating conditions the air temperature is + 40 ℃; ambient air temperature limit of -40 ℃; ambient air temperature for 24h average does not exceed + 35 ℃. Altitude meter box installation site altitude over 1000 meters. Atmospheric conditions Atmospheric relative humidity in the ambient air is + 40 ℃ not more than 50%; at lower temperatures can have a higher relative humidity; the wettest month of the monthly mean maximum relative humidity of 90%, and taking into account humidity changes in the surface of the product should not have condensation. FRP meter box meter box on how to lay cables on how to lay cables and the inlet and outlet devices Note: S, meter box should rain approaches. D, each meter box insulated copper not less than 4mm2, FRP meter box mold, wire loops should not be less than 0.5mm. W, multi-epitope meter box meter neutralino table may not be means to share. A, metering box should be insulated flame retardant wire color code should be: with yellow-green and red lines, the zero line is black; PE line of yellow and green lines. U, incoming unit is greater than 12mm creepage spacing, electrical spacing greater than 10 mm, glass steel meter box, export units creepage spacing greater than 8mm. P, in the meter box switch room should be equipped with a secondary terminal collector. K, measuring frame trunking cabling, wiring rational planning separate import and export. Symbol L, each meter box epitopes on the outlet side with rare-meter into the home of online features of the demarcation point "should be set up glass steel meter box factory, glass steel meter box, provided by LELING Jinyang Jinyang Electric Appliance Co., music Ling City Jinyang Electric Co., Ltd. (www.lljydq.com) strong, credible, in Dezhou power distribution equipment industry has accumulated a large number of loyal customers. The company better work attitude and continuously improve innovative ideas will lead the gold Yang appliances and you hand in hand into the brilliant, for a better future!