NEK EN 60079-25:2010

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Status: Check Published
Norwegian title: Explosive atmospheres - Part 25: Intrinsically safe electrical systems
English title: Explosive atmospheres - Part 25: Intrinsically safe electrical systems
Item type: Standard
Language: Engelsk
Edition: 2010-10 (2010-11-01)
Supersedes: NEK EN 60079-25:2004 Alert Withdrawn
NEK EN 50394-1:2004 Alert Withdrawn
NEK EN 60079-25:2004/Cor. Alert Withdrawn
Superseded by: NEK EN IEC 60079-25:2022 Check Published

NOK 2 970,00 (excl. VAT)
NOK 3 712,50 (with VAT)

Included in: ATEX Komplett
ATEX - Eksplosjonsfarlige områder
ATEX - Eksplosjonsfarlige områder - EL
Scope: IEC 60079-25:2010 contains the specific requirements for construction and assessment of intrinsically safe electrical systems, type of protection 'i', intended for use, as a whole or in part, in locations in which the use of Group I, II or III apparatus is required. This standard supplements and modifies the general requirements of IEC 60079-0 and the intrinsic safety standard IEC 60079-11. Where a requirement of this standard conflicts with a requirement of IEC 60079-0 or IEC 60079-11, the requirement of this standard takes precedence. This standard supplements IEC 60079-11, the requirements of which apply to electrical apparatus used in intrinsically safe electrical systems. The installation requirements of Group II or Group III systems designed in accordance with this standard are specified in IEC 60079-14. The significant changes with respect to the previous edition are: - extension of the scope from Group II to Groups I, II and III; - introduction of level of protection 'ic'; - addition of requirements for cables and multi-core cables; - reference to IEC 60079-11 regarding the termination of intrinsically safe circuits; - requirements for the assessment of an expanded and clarified intrinsically safe system regarding level of protection 'ic', simple apparatus and faults in multi-core cables; - introduction of predefined systems and merging of the system requirements for FISCO from IEC 60079-27; - addition of requirements for simple intrinsically safe systems containing both lumped inductance and lumped capacitance; - addition of a method for testing the electrical parameters of cables; - additional information for the use of simple apparatus in systems.
Committee: NEK/NK31
Adopted: 2010-11-01
ICS: 922.03.01 - ATEX - EN-normer og -standarder for installasjon av utstyr og sikkerhetssystemer relatert til brukerdirektiv 99/92 (Fhosex) - Elektrisk utstyr
29.260.20 - Elektriske apparater til eksplosive atmosfærer
903.01 - Elektrisk utstyr i gasseksplosjonsfarlige omgivelser
922.02.01 - ATEX - Harmoniserte EN-normer og -standarder for utstyr i eksplosjonsfarlige områder - Elektrisk utstyr