IS 11064-1984 PDF

Scope: 1.1 This guide defines the conditions in which an electrical apparatus liable to cause an ignition may be used in a room or building situated where flammable gases or vapours may be present, the ingress of these gases or vapours into the room being prevented by maintaining inside it a protec-tive gas at a higher pressure than that of the outside atmosphere. 1.2 This guide includes recommendations for the construction, equipping and operation of rooms or buildings and their a sociated parts, such as inlet and exhaust ducts for the protective gas, and auxiliary control devices necessary for the satisfactory production and maintenance of the overpressure. 1.3 This guide also recommends the tests necessary to show that the installation conforms to these recommendations and the marking to be placed on the rooms or buildings. 1.4 This guide concerns only rooms and buildings in the interior of which there is no internal release ( actual or potential ) of flammable gases and vapours.

IS 11064-1984 history

1985 IS 11064-1984 Guidelines for the construction and use of pressurized rooms or buildings for the installation of electrical equipment in explosive gas atmospheres