| 000 | nam a22 4500 | ||
|---|---|---|---|
| 245 | _aSpecification for factory-built assemblies of switchgear and controlgear for voltages up to and including 1000 V a.c. and 1200 V a.c. : part I general requirement | ||
| 260 |
_a[London] _bInternational Electrotechnical Commission _c1977 |
||
| 710 | _aBritish Standards Institution | ||
| 942 | _c22 | ||
| 999 |
_c4806 _d4806 |
||