82nd Edition, September 30, 1982
Intrinsically safe power supplies for use in coal mines - Part 3: Specification for rechargeable battery units
Includes all amendments and changes through Reaffirmation Notice , August 2, 2013
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Description / Abstract:
Specifies the requirements for the construction and testing of a range of rechargeable battery units which are rechargeable from the power supply units specified in Part 1 and 2.