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Intrinsically safe power supplies for use in coal mines -- Specification for rechargeable battery units
This Part of this standard specifies requirements for the construction and testing of a range of nickel cadmium rechargeable battery units intended to be certified intrinsically safe for use in coal mines and which provide an intrinsically safe output.
These battery units are rechargeable from the power supplies specified in Parts 1 and 2 of this standard.
NOTE: The titles of the publications referred to in this standard are listed on the inside back cover.
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.
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