621. Specification for instrument transformers. Three-phase voltage transformers for voltage levels having U m up to 52 kV. (15th April 1994) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (24 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
622. Specification for safety of household and similar electrical appliances. Complete particular specifications. Stationary instantaneous water heaters Part 3-3.9, (29th July 1988) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (54 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
623. Relays with forcibly guided (linked) contacts. (15th March 1998) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (10 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
624. Harmonized system of quality assessment for electronic components. Sectional specification: passive filter units for electromagnetic interference suppression (filters for which safety tests are required). (15th September 1995) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (42 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
625. BS EN IEC 62314. Solid-state relays. (24th January 2020) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (56 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
626. BS EN 61643-21. Low voltage surge protective devices. Part 21. Surge protective devices connected to telecommunications and signalling networks. Performance requirements and testing methods (30th March 2022) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (84 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
627. Tracked Changes. Piezoelectric sensors. Generic specifications Part 1, (8th February 2022) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (78 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
628. BS EN IEC 61347-2-11. Controlgear for electric light sources. Safety. Part 2-11. Particular requirements for miscellaneous electronic circuits used with luminaires (21st April 2022) 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) ↗
629. BS EN 62631-3-2 Ed.2.0. Dielectric and resistive properties of solid insulating materials. Part 3-2. Determination of resistive properties (DC methods). Surface resistance and surface resistivity (21st April 2022) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (33 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
630. Digital audio interface. General Part 1, (29th April 2022) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (44 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗