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| ACTION PRINCIPLE OF GROUNDED SYSTEMS PREVENTED METHANE GAS FROM EXPLOSION AND GROUND-CHECK MONITORS FOR THE EFFECTIVENESS |
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Received:November 26, 2006
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| KeyWord:coal mine; electrical power systems; protective grounding; monitor |
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| Abstract: |
| This paper specifies that the fundamental theory of grounded systems prevented methane gas from explosion. The reason of grounded lose effectiveness and the potential serious danger of a fail - safe grounded are analyzed. The principle and property of domestic and foreign two general classification monitors use in mining are illuminated. The tenets of design ground- check monitor are put frward. |
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