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  • Kjj148 Mine Explosion Proof Switchboard - China

    price: contact company for price

    KJJ148 Mine Explosion proof Switchboard Product Summarize

    KJJ148 flameproof and intrinsically safe network switch (hereinafter referred to as 'explosion-proof switch'), the converter is flameproof and intrinsically safe, explosion-proof mark Exd [ib] I, used in coal with gas and dust explosion hazardous locations.

    The Explosion proof Switchboard allows installation in a coal mine gas explosion in hazardous dust and gas environment, used to make the downhole devices can be connected to the switch for data exchange with the ground, remote control and remote monitoring. Ground computer can connect to the switch of the downhole device management, network computers through a switch associated equipment for downhole data acquisition information and control management.

    KJJ148 Mine Explosion proof Switchboard Working Conditions

    Ambient temperature: 0 ℃ ~ +40 ℃;

    Relative Humidity <95%(+25℃);

    Atmospheric pressure 80KPa~106 KPa;

    Mechanical environment: No significant vibration and shock of the occasion.

    Don't in the strong electromagnetic field or the use of mobile phone electromagnetic shielding environment, available in methane and coal dust explosive used in the environment of coal mine, but shall not be used in the case of containing corrosive gas.

    KJJ148 Mine Explosion proof Switchboard Model Meaning

    KJ: mine monitoring and control products or equipment

    J: Switch

    148: Registration No.

    KJJ148 Mine Explosion proof Switchboard Parameters

    Power supply

    a)Input voltage 127V/220V/380V/660VAC/50HZ (transformer tap mode input)

    b)Enter Apparent Power (VA): ≤ 150

    Standby Power

    a)Use HYS1272 12V/7.2AH two lead-acid batteries in series

    b) charging voltage: 18V ~ 28V

    c)Discharge cut-off voltage: ≥ 18V

    d)Conversion time: ≤ 1S

    e)working time: ≥ 2h

    Ethernet optical ports

    a) transfer port: 2

    b) transmission mode: TCP / IP Ethernet optical signal transmission

    c) Transfer rate: 1000M bit / s

    d) Connection: LC switch

    e) Transmit Power: -14 ~ 1dBm (wavelength: singlemode 1310nm)

    f) Receiving sensitivity:-24dBm

    CAN signal transmission interface

    a)transfer port Quantity: 1 channel

    b)Transmission mode: master-slave, half-duplex, unipolar

    c)Transfer rate: 5Kbps

    d)Maximum transmission distance: 5km (use MHY32, MHYVRP, MHYVR cable, wire cross-sectional area of not less than 1.5mm2)

    e)the signal peak voltage: 1 ~ 5V

    KJJ148 Mine Explosion proof Switchboard Product Function

    1, with Ethernet optical signals between the redundant ring network data exchange capabilities;

    2, with optical and electrical interfaces between the data exchange capabilities;

    3, with the electrical interface between the bi-directional data transfer capabilities;

    4, with a CAN bus transmission function;

    5, with RS484 bus transfer functions.

    Company Contact:

    • Phone: 008618653763332

    • Address: No.69 Huoju Road, New & High Zone, Jining, China

    • Email: Email

    Published date: October 8, 2013 -

    • Business Description: Shandong China Coal Industrial&Mining Supplies Group Co.,Ltd

      (hereinafter referred to as china coal) is a group company, which is a

      collection of e commerce, machinery manufacturing, software, research

      and development, modern logistics of large diversified industrial group.

      The group has 100 million yuan registered capital , with more than 1100


      China coal is a professional manufacturing base of mines support equipment, transport equipment, lifting equipment, spray equipment, drilling equipment, ventilation equipment, lifting equipment and other products, as well as research and development new product and mine construction products with advanced high technology.

      In order to development of international trade , expansion overseas market, china coal established international trade branch company and import and export branch company. China coal actively expand foreign trade channels based on a good market image, brand, modern information platforms and capital protection. Based on the trading diversification strategy, the group established a chain loop trading system which is with import and export trade of the mining equipment as a core, the resources and market as the elements. China coal also formed a overseas sales team, that covers English, French, German, Portugal, Italy, Russian, Korean, Japanese, Arabic, and more than 10 language professionals to explore broader international markets on the Internet. At present, the group signed up for "china coal" trademark in the European Union, United States, Russia, United Kingdom, Taiwan, Macao, Singapore, Indonesia, Israel, and other countries, also get the right to use the trademark of the United Kingdom and Taiwan. Hundreds kinds of products such as tunnel boring machine, coal cutter machine etc. is exported more than 60 countries and regions which are the United States, Australia, Germany, Russia, Spain, France, Canada, United Kingdom, Italy, Portugal, Georgia, Austria, and Colombia. China coal is to establish long term, broader economic and trade cooperation and strategic partnership with a number of large state owned enterprises and customers, and won the unanimous approval of them.

      China coal has succeeded in passing a number of certification systems which are ISO9001, 2008 quality management system certification, United States ANAB management system certification, United Kingdom international authoritative certification bodies UKAS quality management system certification, SGS certification (made in China), Alibaba GIS certification. She has also obtained a variety of honor which are China excellent enterprise of mechanical industry, China equipment manufacturing operation top 10 enterprises, national reputation for quality assured supplier, China credit certification system demonstration unit, national quality trustworthy product for conformity assessment, national consumer satisfaction units, China AAA level quality trustworthy enterprise and Chinese e commerce company credit rating AAA level credit Enterprise.

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