BS 5501-7:1977被替代
Electrical apparatus for potentially explosive atmospheres. Intrinsic safety 'i'
出版：British Standards Institution
專家解讀視頻
Intrinsically safe electrical apparatus in which the electrical circuits themselves are incapable of causing ignition of a surrounding explosive atmosphere. Supplements and modifies Part 1.
? British Standards Institution 2013
Amendment notes:
AMD 3239 published 15 January 1980
AMD 3738 published 30 September 1981
AMD 3896 published 31 December 1981
AMD 4061 published 30 September 1982
AMD 4398 published 31 October 1983
AMD 4522 published 30 April 1984
AMD 4880 published 31 July 1985
AMD 5154 published 28 February 1986
AMD 5160 published 28 February 1986
AMD 5841 published 31 August 1988
AMD 6046 published 15 July 1990
AMD 6436 published 30 March 1990
AMD 6817 published 28 February 1992
AMD 6943 published 01 April 1992
AMD 6944 published 31 March 1992
AMD 6945 published 31 March 1992
AMD 8108 published 15 March 1994
