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AS NZS 60079.29.3:2016 pdf free.Explosive atmospheres Part 29.3: Gas detectors—Guidance on functional safety of fixed gas detection systems. 5.2.6 Poisoning and adverse chemical reaction Particular sensor technologies suffer from common cause failures; airborne substances can inhibit or poison certain sensor technologies (e.g. catalytic sensors) whereas electrochemical sensors can suffer from adverse chemical reactions. Sensors using such technologies have a dangerous...

AS NZS 60079.17:2017 pdf free.Explosive atmospheres Part 17: Electrical installations inspection and maintenance. 4 General requirements 4.1 Documentation For the purposes of inspection and maintenance, up-to-date documentation (verification dossier) including any modification records, of the following items shall be available: a) zone classification of areas and, if included, the equipment protection level (EPL) required for each location (see lEG 60079-10-1...

AS NZS 60079.5:2015 pdf free.Explosive atmospheres Part 5: Equipment protection by powdered filling 'q'. 4.1.1.3 Containers intended to be opened for repair Electrical equipment, parts of electrical equipment, or Ex components that are designed to be repaired shall incorporate sealing methods that are capable of being renewed without damage to the container when the equipment is repaired, re-filled, and re-sealed....

AS NZS 60079.15:2020 pdf free.Explosive atmospheres Part 15: Equipment protection by type of protection "n" (IEC 60079-15:2017 (ED.5.0) MOD). 4 General 4.1 Equipment grouping and temperature classification Equipment grouping and temperature classification shall be in accordance with the equipment grouping and temperature classification clauses of IEC 60079-0. 4.2 Potential ignition sources In normal operation and in certain regular expected occurrences...