AS/NZS 60079.1.1:2002
Explosive atmospheres - Flameproof enclosure 'd' - Method of test for ascertainment of maximum experimental safe gap
Specifies a test method for the measurement of the maximum experimental safe gaps for gas- or vapour-air mixture under normal conditions of temperature and pressure so as to permit the selection of an appropriate group of flameproof enclosures. This Standard has been reproduced from and is identical to IEC 60079-1-1:2002.
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AS/NZS 60079.1.1:2002 ELECTRICAL APPARATUS FOR EXPLOSIVE GAS ATMOSPHERES - FLAMEPROOF ENCLOSURES 'd'-METHOD OF TEST FOR ASCER
PREFACE
CONTENTS
1 Scope
2 Definitions
2.1 maximum experimental safe gap (MESG)
3 Outline of method
4 Test apparatus
4.1 Mechanical strength
4.2 Interior chamber
4.3 Exterior chamber
4.4 Gap adjustment
4.5 Injection of mixture
4.6 Source of ignition
4.7 Observation windows
4.8 Materials of test apparatus
5 Procedure
5.1 Preparation of gas mixtures
5.2 Temperature and pressure
5.3 Gap adjustment
5.4 Ignition
5.5 Observation of the ignition process
6 Determination of maximum experimental safe gap
6.1 Preliminary tests
6.2 Confirmatory tests
6.3 Reproducibility of maximum experimental safe gaps
6.4 Tabulated values
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AS/NZS 60079.1.1:2002 ELECTRICAL APPARATUS FOR EXPLOSIVE GAS ATMOSPHERES - FLAMEPROOF ENCLOSURES 'd'-METHOD OF TEST FOR ASCER
PREFACE
CONTENTS
1 Scope
2 Definitions
2.1 maximum experimental safe gap (MESG)
3 Outline of method
4 Test apparatus
4.1 Mechanical strength
4.2 Interior chamber
4.3 Exterior chamber
4.4 Gap adjustment
4.5 Injection of mixture
4.6 Source of ignition
4.7 Observation windows
4.8 Materials of test apparatus
5 Procedure
5.1 Preparation of gas mixtures
5.2 Temperature and pressure
5.3 Gap adjustment
5.4 Ignition
5.5 Observation of the ignition process
6 Determination of maximum experimental safe gap
6.1 Preliminary tests
6.2 Confirmatory tests
6.3 Reproducibility of maximum experimental safe gaps
6.4 Tabulated values
AS/NZS 60079.1.1:2002
Online Library subscription information
Online library subscriptions provide a cost-effective solution for organisations of any size to access the latest standards, offering 24/7 access to a personalised catalogue. The service ensures subscribers have have the most up-to-date version of selected standards, incluing automatic updates for any amendments or versions. Pricing is dependent on the chosen standards and the number of concurrent users, with discounts applied from the standards PDF price. For customised subscriptions or further inquiries, contact the Online Library team.