000 00405nam a22001097a 4500
999 _c66709
_d66709
008 190507b ||||| |||| 00| 0 eng d
245 _aBS:142 sec.1.2- 1982; Electrical protection relays; pt.1: Information and requirements for all protection relays sec. 1.21 specification for contact performance
260 _aLondon
_bBritish Standards Institutions
_c1982
300 _a4p.
310 _a0
942 _cSTDS