000 | 00255nam a2200073 4500 | ||
---|---|---|---|
080 |
_a _b |
||
245 | _aBS-5253 - 1975; Specification for AC disconnectors (isolators) and earthing switches of rated voltage above 1 kV | ||
700 | _aBritish Standards Institution | ||
260 |
_aLondon _bBSI _c1975 |
||
300 | _a49p | ||
999 |
_c32636 _d32636 |