TC 31

Equipment for explosive atmospheres

Label	Title
Subcommittees
SC 31G	Intrinsically-safe apparatus
SC 31J	Classification of hazardous areas and installation requirements
SC 31M	Non-electrical equipment and protective systems for explosive atmospheres
Working Groups
WG 22	Responsible for MT 60079-0, maintenance of IEV 60050.426 and other specific tasks assigned by TC 31
WG 27	Electric Machines (motors and generators)
WG 28	Dusts
WG 30	Equipment process sealing
WG 31	Gas/dust hybrid mixtures
WG 32	Creepage and clearance distances
WG 37	Electrochemical cells and batteries in equipment for explosive atmospheres
WG 39	Adverse service conditions
WG 40	Luminaires
Maintenance Teams
MT 60079-1	Maintenance of IEC 60079-1
MT 60079-2-13	Maintenance of IEC 60079-2, -13, -16
MT 60079-7	Maintenance of IEC 60079-7
MT 60079-15	Maintenance of IEC 60079-15
MT 60079-18	Maintenance of IEC 60079-18
MT 60079-26	Maintenance of IEC 60079-26
MT 60079-28	Risk of ignition by radiation from optical equipment
MT 60079-29	Maintenance of IEC 60079-29 series
MT 60079-30	Maintenance for IEC 60079-30-1 and IEC 60079-30-2
MT 60079-31	Maintenance of IEC 60079-31
MT 60079-33	Maintenance of IEC 60079-33
MT 60079-35	Maintenance of IEC 60079-35-1 and IEC 60079-35-2
Joint Working Groups
JWG 29	with TC 101 - Electrostatics linked to TC 101
JWG 1	w/TC31/WG28 - Particular requirements for vacuum cleaners and dust extractors providing equipment protection level DC Managed by SC 61J
Advisory Groups
AG 36	Chairman's Advisory Group
ad-Hoc Groups
AHG 33	Safety Devices Related to Explosion Risk
AHG 41	High voltage

Country	Country Code	P/O Status	IEC Membership
Argentina	AR	O-Member	Full Member
Australia	AU	P-Member	Full Member
Austria	AT	P-Member	Full Member
Belgium	BE	P-Member	Full Member
Brazil	BR	P-Member	Full Member
Bulgaria	BG	O-Member	Full Member
Canada	CA	P-Member	Full Member
China	CN	P-Member	Full Member
Croatia	HR	P-Member	Full Member
Czech Republic	CZ	P-Member	Full Member
Denmark	DK	P-Member	Full Member
Finland	FI	P-Member	Full Member
France	FR	P-Member	Full Member
Germany	DE	P-Member	Full Member
Greece	GR	O-Member	Full Member
Hungary	HU	O-Member	Full Member
India	IN	P-Member	Full Member
Indonesia	ID	O-Member	Full Member
Ireland	IE	P-Member	Full Member
Israel	IL	O-Member	Full Member
Italy	IT	P-Member	Full Member
Japan	JP	P-Member	Full Member
Korea, Republic of	KR	P-Member	Full Member
Malaysia	MY	P-Member	Full Member
Mexico	MX	O-Member	Full Member
Netherlands	NL	P-Member	Full Member
New Zealand	NZ	P-Member	Full Member
Norway	NO	P-Member	Full Member
Pakistan	PK	P-Member	Full Member
Poland	PL	P-Member	Full Member
Portugal	PT	P-Member	Full Member
Romania	RO	P-Member	Full Member
Russian Federation	RU	P-Member	Full Member
Serbia	RS	O-Member	Full Member
Singapore	SG	O-Member	Full Member
Slovakia	SK	O-Member	Full Member
Slovenia	SI	P-Member	Full Member
South Africa	ZA	O-Member	Full Member
Spain	ES	P-Member	Full Member
Sweden	SE	P-Member	Full Member
Switzerland	CH	P-Member	Full Member
Thailand	TH	O-Member	Full Member
Turkey	TR	O-Member	Full Member
Ukraine	UA	P-Member	Full Member
United Kingdom	GB	P-Member	Full Member
United States of America	US	P-Member	Full Member

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Committee	Description
Internal IEC Liaison
TC 2	Rotating machinery
SC 17B	Low-voltage switchgear and controlgear
TC 18	Electrical installations of ships and of mobile and fixed offshore units
TC 27	Industrial electroheating and electromagnetic processing
SC 65A	System aspects
SC 65B	Measurement and control devices
TC 101	Electrostatics
TC 105	Fuel cell technologies
TC 109	Insulation co-ordination for low-voltage equipment
Liaison ISO
ISO/TC 45	Rubber and rubber products
ISO/TC 45/SC 1	Hoses (rubber and plastics)
ISO/TC 67/SC 8	Materials, equipment and offshore structures for petroleum, petrochemical and natural gas industries - Arctic operations
ISO/TC 197	Hydrogen technologies