British Standards Institution

Sector: Governance & Resilience

Overview: Under the direction of EXL/31 is responsible for the UK input to the work of IEC/SC 31G and CENELEC/SC 31-3 and British Standards, for electrical apparatus for intrinsically safe apparatus and to participate in any corresponding international work on the subject.

Committee standards activity

In Progress (0)

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Reference	Standards description	Status ? The standards development process is divided into chronological stages: Proposal; Drafting; Public comment; Comment resolution; Approval; Published standard.

Published (3)

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Reference	Standards description	Status ? The standards development process is divided into chronological stages: Proposal; Drafting; Public comment; Comment resolution; Approval; Published standard.
BS EN IEC 60079-11:2024	Explosive atmospheres. Equipment protection by intrinsic safety "i" Categories: Explosion protection \| Electrical apparatus. Explosive atmospheres Published standard begins : 2024-12-09	Published standard
BS EN 60079-27:2008	Explosive atmospheres. Fieldbus intrinsically safe concept (FISCO) Categories: Electrical apparatus. Explosive atmospheres \| Printed circuits and boards Published standard begins : 2008-07-30	Published standard
BS EN 50394-1:2004	Electrical apparatus for potentially explosive atmospheres. Group I. Intrinsically safe systems. Construction and testing Categories: Electrical apparatus. Explosive atmospheres Published standard begins : 2004-05-10	Published standard

Withdrawn (8)

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Reference	Standards description	Status ? The standards development process is divided into chronological stages: Proposal; Drafting; Public comment; Comment resolution; Approval; Published standard.
PD IEC/TS 60079-39:2015	Explosive atmospheres. Intrinsically safe systems with electronically controlled spark duration limitation Categories: Electrical apparatus. Explosive atmospheres Withdrawn begins : 2019-06-20	Withdrawn
PD CLC IEC/TS 60079-39:2019	Explosive atmospheres. Intrinsically safe systems with electronically controlled spark duration limitation Categories: Electrical apparatus. Explosive atmospheres Withdrawn begins : 2020-11-06	Withdrawn
BS EN IEC 60079-25:2022	Explosive atmospheres. Intrinsically safe electrical systems Categories: Explosion protection \| Electrical apparatus. Explosive atmospheres Withdrawn begins : 2023-04-12	Withdrawn
BS EN 60079-27:2006	Electrical apparatus for explosive gas atmospheres. Fieldbus intrinsically safe concept (FISCO) and fieldbus non-incendive concept (FNICO) Categories: Electrical apparatus. Explosive atmospheres Withdrawn begins : 2011-04-01	Withdrawn
BS EN 60079-25:2010	Explosive atmospheres. Intrinsically safe electrical systems Categories: Explosion protection \| Electrical apparatus. Explosive atmospheres \| Multimedia systems and teleconferencing equipment \| IT applications. Office work \| IT applications. Information, documentation and publishing Withdrawn begins : 2013-11-08	Withdrawn
BS EN 60079-11:2012	Explosive atmospheres. Equipment protection by intrinsic safety "i" Categories: Electrical apparatus. Explosive atmospheres Withdrawn begins : 2012-08-13	Withdrawn
BS EN 60079-11:2007	Explosive atmospheres. Equipment protection by intrinsic safety "i" Categories: Electrical apparatus. Explosive atmospheres \| Coaxial cables. Waveguides Withdrawn begins : 2012-01-09	Withdrawn
AMD 15956	Electrical apparatus for potentially explosive Atmospheres - Intrinsic safety 'i' Categories: Electrical apparatus. Explosive atmospheres Withdrawn begins : 2009-10-05	Withdrawn

Standards Development

EXL/31/2 - Intrinsically safe apparatus

Committee standards activity