000 00378nam a2200109 4500
999 _c66732
_d66732
008 190515b ||||| |||| 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
_bBSI
_c1982
300 _a4p.
310 _a0
942 _cSTDS