581. Electrical relays. Electrical disturbance tests for measuring relays and protection equipment. Immunity to conducted disturbances induced by radio frequency fields Part 22-6, (15th August 2001) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (16 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
582. Electrical relays. Electrical disturbance tests for measuring relays and protection equipment. Radiated electromagnetic field disturbance tests Part 22-3, (15th May 2001) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (16 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
583. Electrical relays. Insulation coordination for measuring relays and protection equipment. Requirements and tests Part 5, (15th August 2001) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (36 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
584. Electrical relays. Single input energizing quantity measuring relays with dependent or independent time Part 3, (15th November 1998) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (14 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
585. Electrical relays. Specification for contact loads of preferred values used in endurance tests for electrical relay contacts Part 4, (29th April 1983) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (16 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
586. Electrical relays. Specification for contact performance of electrical relays Part 1, (31st October 1980) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (22 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
587. Electrical relays. Specification for test equipment used in endurance tests for electrical relay contacts Part 5, (29th April 1983) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (12 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
588. Electrical relays. Specification for the insulation testing of electrical relays Part 3, (31st October 1980) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (20 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
589. Electrical safety in low voltage distribution systems up to 1 000 V a.c. and 1 500 V d.c. Equipment for testing, measuring or monitoring of protective measures. Combined measuring equipment for testing, measuring or monitoring of protective measures Part 10, (31st July 2013) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (14 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
590. Electrical safety in low voltage distribution systems up to 1 000 V AC and 1 500 V DC. Equipment for testing, measuring or monitoring of protective measures. Part 3. Loop impedance Part 3, (8th July 2022) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (18 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗