JHH-2 mine explosion intrinsically safe circuit with a junction box

 JHH-2, JHH-3, JHH-4 type mine explosion-proof intrinsically safe circuit with a junction box price homegrown: Person in charge: Huang Hung 15666755709 0537-2164898 Overview This product is based on Q / HX003-2007 standards. ? Cable supporting this product and coal mine communications, surveillance system used, can be used for mining face coal mine roadway excavation, and so on down the gas and coal dust explosion hazard environment, as with intrinsically safe communications, surveillance system equipment The cable connecting device. Model meaning proof type: Mine intrinsically safe. Explosion-proof mark: ExibⅠ. Ambient temperature -10 ℃ - + 40 ℃; relative humidity: ≤95% (+ 25 ℃ when); Atmospheric pressure: 86-106KPa; an environment with explosive gas and coal dust and other explosive substances; environment should be free from corrosion gas; technical requirements for rated voltage 60V Rated current 3A Contact resistance is less than 0.01 ohm insulation resistance greater than 500 megohms insulation resistance is less than the surface of the cover and the seal seat should be noted that after the completion of wiring 1 × 109Ω. Phone: 0537-2164898 Fax: 0537-2583028 Mobile: 15666755709 QQ: 2445029269 Manager: Huang Hung-mail: 2445029269@qq.com Website: http://www.hengwanggk.com/ Ji Ning Hengwang Mining Machinery Co., Ltd.