BS 6353:1983
Specification for underground loudspeaker communication systems in coal mines
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Summary:
Specifies electrical interface characteristics, interconnection facilities, tone signals and transmission distance.
Pages:
8
BS 6353:1983 Key Phrases:
Loudspeakers, Audio equipment, Underground, Telephone systems, Mines, Coal mining, Audio systems, Mining equipment, Communication equipment, Communication networks, Acoustic couplers, Safety devices, Electrical safety, Electrical protection equipment, Overcurrent protection, Overvoltage protection, Electric cables, Communication cables, Circuits, Input impedance, Output impedance, Network parameters, Voltage, Signal level, Speech transmission systems
BS 6353:1983 Cross References:
BS 1259, BS 5501:Part 7, BS 5501:Part 9, BS 6360, BS 6746, Mines and Quarries Act, 1954, Health and Safety at Work etc. Act 1974
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