BS 5501-3:1977
$102.76
Electrical apparatus for potentially explosive atmospheres – Pressurized apparatus ‘p’
Published By | Publication Date | Number of Pages |
BSI | 1977 | 18 |
Pressurized apparatus in which entry of a flammable gas into the apparatus enclosure is prevented by maintaining within the enclosure a protective gas, usually air, at a pressure above the external atmosphere. Supplements Part 1.