Electrical equipment for explosive atmospheres - Explosion-protection techniques Pressurized rooms or pressurized enclosures
Standards Australia
Specifies requirements for the design, construction and testing of rooms and enclosures of electrical equipment in which the entry of flammable gas or vapour is prevented by maintaining the air (or other non-flammable gas) within the room or enclosure at a specified pressure above that of the external atmosphere. Requirements for the use of pressurized rooms and enclosures in Class II, combustible dust areas are also included.
RECONFIRMATION NOTICE
Technical Committee EL-014 has reviewed the content of this publication and in accordance with Standards Australia procedures for reconfirmation, it has been determined that the publication is still valid and does not require change.
Certain documents referenced in the publication may have been amended since the original date of publication. Users are advised to ensure that they are using the latest versions of such documents as appropriate, unless advised otherwise in this Reconfirmation Notice.
Approved for reconfirmation in accordance with Standards Australia procedures for reconfirmation on 8 April 2013.
The following are represented on Technical Committee EL-014:
Australian Chamber of Commerce and Industry
Australian Industry Group
Australian Institute of Petroleum
Australian Petroleum Production and Exploration Association
Australian Pipeline Industry Association
Aviation and Marine Engineers Association
Bureau of Steel Manufacturers of Australia
Department of Natural Resources and Mines, QLD
Department of Trade and Investment, Regional Infrastructure and Services, NSW
Electrical Compliance Testing Association
Electrical Contractors Association of New Zealand
Engineers Australia
Institute of Electrical Inspectors
Institution of Professional Engineers New Zealand
Ministry of Business, Innovation and Employment (New Zealand)
New Zealand Employers and Manufacturers Association (Central)
WorkCover New South Wales
To view or download a copy of the reconfirmation notice please go to the reconfirmation link near the top of this page.
This Standard specifies requirements for the design, construction and testing of pressurized rooms or pressurized enclosures, type of protection 'p', intended for use in Class I, Zone 1 and Zone 2 or Class II explosive atmospheres. While this standard covers enclosures with an internal release of flammable gas or vapour, it does not cover rooms with such a release, e.g. analyser houses nor rooms or enclosures with an internal release of combustible dust.
The requirements contained in this Standard are supplementary to those in AS 2380.1.
NOTES:
1 The classification of explosive atmospheres, termed hazardous areas, is dealt with in AS 2430. Further guidance may be obtained from Handbook SAA HB13.
2 Equipment with large areas which are subjected to pressures in excess of 1 kPa (e.g. sheet metal switchboard enclosures) may require approval from the relevant authority responsible for pressure vessel legislation in the State or Territory in which the enclosure is to be installed.
3 Rooms in which there is an internal release of flammable gas or vapour e.g. analyser houses are covered by IEC 79-16.
4 Areas not covered by this standard may be treated by protection by ventilation in accordance with AS 1482.
5 To minimise the risk of failure of an enclosure due to rupturing arc faults safeguarding against potential fault currents of an installation, especially where levels exceed 6 KA, should be provided.
| Document Type | Standard |
| Status | Current |
| Publisher | Standards Australia |
| ProductNote | Reconfirmed 26-07-2013 |
| Committee | EL-014 |
| Supersedes |
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