An intrinsically safe junction box, JHH-2 mine an overview of the production of the products according to Q/KH003-2010 standard. This product can be used with the coal mine communications, monitoring system cables supporting, can be used in coal mine working face, roadway cavern on down the mountain, such as gas and coal dust dangerous environment, as cable and intrinsically safe communications, surveillance systems equipment connecting means. , JHH-2 mine safety terminal box Ex-mark with this explosion-proof type: Mine intrinsically safe. Ex-mark: Exib Ⅰ. , JHH-2 mine safety terminal box with the use of the environment a Ambient temperature -10 ° C - +40 ° C; relative temperature: ≤ 95% (+25 ℃ when); :86-106KPa c, atmospheric pressure; the environment sexual gas and coal dust, and other explosive substances; e, the environment should be free of corrosive gas; four the JHH-mining intrinsically safe junction box technology requirements of the rated current of the rated voltage of 60V 3A contact resistance less than 0.01 ohm insulation resistance is greater than the of 500 megohms surface insulation resistance less than 1 × 109Ω five the JHH-mining intrinsically safe junction box terminals composition of the product by the four groups to each other in parallel instructions for use (1). Three pairs in each line, a total of 12 pairs. (2) This product can only be used for the operating voltage of 60 volts DC, intrinsically safe circuit working voltage 3A. (3) the product of the seals, the inner diameter of the flat washer, according to cable diameter chosen at random in the installation. (4) The installation must tighten the line nut fastening screws, to ensure reliable sealing. , JHH-2 Mine Use intrinsically safe junction box (1) This product can be used for intrinsically safe 60 volts communication, monitoring equipment, without proof review authority to confirm Road intrinsically safe power supply can not be turned on simultaneously . (2) The connector can be used to comply with the above conditions in the mine area, including the mining face. WARNING: The connector wiring operation should be carried out in case of power failure. Wiring should be noted that after the completion of the sealing of the lid and seat. , JHH-2 mine intrinsic safe junction box Order Information: Order to the contract based on the product name, quantity, mailing address, zip code, station Tel write clearly and associates.