SC 77A

EMC - Low frequency phenomena

Label	Title
Working Groups
WG 1	Harmonics and other low-frequency disturbances
WG 2	Voltage fluctuations and other low-frequency disturbances
WG 6	Low frequency immunity tests
WG 8	Description of the electromagnetic environment associated with the disturbances presenton electricity supply networks
WG 9	Power Quality measurement methods

Country	Country Code	P/O Status	IEC Membership
Australia	AU	P-Member	Full Member
Austria	AT	P-Member	Full Member
Belgium	BE	P-Member	Full Member
Brazil	BR	O-Member	Full Member
Bulgaria	BG	P-Member	Full Member
Canada	CA	P-Member	Full Member
China	CN	P-Member	Full Member
Colombia	CO	P-Member	Full Member
Croatia	HR	O-Member	Full Member
Czech Republic	CZ	P-Member	Full Member
Denmark	DK	P-Member	Full Member
Egypt	EG	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	P-Member	Full Member
India	IN	P-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	P-Member	Full Member
Netherlands	NL	P-Member	Full Member
New Zealand	NZ	O-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	P-Member	Full Member
Singapore	SG	O-Member	Full Member
Slovakia	SK	O-Member	Full Member
Slovenia	SI	O-Member	Full Member
South Africa	ZA	P-Member	Full Member
Spain	ES	P-Member	Full Member
Sweden	SE	P-Member	Full Member
Switzerland	CH	P-Member	Full Member
Thailand	TH	P-Member	Full Member
Turkey	TR	P-Member	Full Member
Ukraine	UA	O-Member	Full Member
United Kingdom	GB	P-Member	Full Member
United States of America	US	P-Member	Full Member

Chairman	Mr Emmanuel De Jaeger (BE) Term of office : 2019-01	Send Email
Secretary	Mr Hervé Rochereau (FR)	Send Email
Technical Officer	Mr Pierre Sebellin	Send Email

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Committee	Description
Internal IEC Liaison
SC 3C	Graphical symbols for use on equipment
TC 8	Systems aspects for electrical energy supply
TC 13	Electrical energy measurement, tariff- and load control
SC 22E	Stabilized power supplies
SC 22G	Adjustable speed electric drive systems incorporating semiconductor power converters
SC 22H	Uninterruptible power systems (UPS)
SC 23B	Plugs, socket-outlets and switches
SC 23E	Circuit-breakers and similar equipment for household use
TC 26	Electric welding
TC 34	Lamps and related equipment
TC 38	Instrument transformers
TC 57	Power systems management and associated information exchange
SC 61J	Electrical motor-operated cleaning appliances for commercial use
TC 85	Measuring equipment for electrical and electromagnetic quantities
TC 108	Safety of electronic equipment within the field of audio/video, information technology and communication technology
CISPR	International special committee on radio interference
Liaison A
CIGRE/SC C4	Power system performances
CIRED	International Conference on Electricity Distribution
EURELECTRIC	International Union of Producers and Distributors of Electrical Energy
IEEE/SC22	IEEE/SC22
OIML	International Organization of Legal Metrology
OIML/TC 1	Terminology
OIML/TC 12	Instruments for measuring electrical quantities
OIML/TC 2	Units of measurement
OIML/TC 5	Electronic instrument and software
UIC	International Union of Railways