JHH-2、3、4 type Mine intrinsically safe circuit with junction box

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Posting date : Oct 11, 2013

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MINERAL PRODUCTS | Mineral fu

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27-

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JHH-2、3、4 type Mine intrinsically safe circuit with junction box 1. According to Q/HX003-2007 standard production 2. Explosion-proof marks: Exib Ⅰ 3. Explosion-proof type: mine intrinsically safe This product can be used with control and monitoring system for coal mine communication, cable accessories, can be used in coal mine underground mining working face and tunnel caverns, down the mountain on a gas and coal dust explosion hazard environment, as this type of communication, monitoring and control system equipment cable connection device. Explosion-proof type: mine intrinsically safe Explosion-proof marks: Exib Ⅰ The environment temperature ：-10℃-+40℃； Relative humidity：≤95%（+25℃时）； The atmospheric pressure：86-106KPa； Environment with explosive gas and coal dust explosive substance; Environment should be no corrosive gas. The technical requirements The rated voltage ：60V Rated current ：3A Contact resistance is less than 0.01 ohms Insulation resistance is greater than 500 ohms Less than 1 x 109 Ω surface insulation resistance Wiring should be paid attention to after the completion of the cover and seal.