IEC: 79 - 1 - 1990; Electrical apparatus for explosive gas atmospheres Part <I=one> Construction and verification test of flameproof enclosures of electrical apparatus
IEC: 79 - 1 - 1990; Electrical apparatus for explosive gas atmospheres Part Construction and verification test of flameproof enclosures of electrical apparatus
- Geneva IEC 1990
- 99p
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