5471. BS EN IEC 61558-2-4. Safety of transformers, reactors, power supply units and combinations thereof. Part 2-4. Particular requirements and tests for isolating transformers and power supply units incorporating isolating transformers for general applications (29th August 2019) 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) ↗
5472. BS EN IEC 61558-2-5. Safety of transformers, reactors, power supply units and combinations thereof. Part 2-5. Particular requirements and test for transformer for shavers, power supply units for shavers and shaver supply units (28th February 2023) 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) ↗
5473. BS EN IEC 61558-2-6. Safety of transformers, reactors, power supply units and combinations thereof. Part 2-6. Particular requirements and tests for safety isolating transformers and power supply units incorporating safety isolating transformers for general applications (29th August 2019) 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) ↗
5474. BS EN IEC 61577-6. Radiation protection instrumentation. Radon and radon decay product measuring instruments. Part 6. Passive integrating radon measurement systems using solid-state nuclear track detectors (19th April 2023) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (27 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
5475. BS EN IEC 61587-6. Mechanical structures for electrical and electronic equipment. Tests for IEC 60917 and IEC 60297 series. Part 6. Security aspects for indoor cabinets (8th November 2019) 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) ↗
5476. BS EN IEC 61591. Cooking fume extractors. Methods for measuring performance. (11th October 2021) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (37 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
5477. BS EN IEC 61643-01. Low-voltage surge protective devices. Part 01. General Requirements and test methods (14th January 2022) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (123 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
5478. BS EN IEC 61643-11. Low-voltage surge protective devices. Part 11. Surge protective devices connected to AC low-voltage power systems. Requirements and test methods (14th January 2022) 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) ↗
5479. BS EN IEC 61643-21. Low voltage surge protective devices. Part 21. Surge protective devices connected to telecommunications and signalling networks. Requirements and testing methods (15th August 2023) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (87 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
5480. BS EN IEC 61643-321. Components for low-voltage surge protection. Part 321. Performance requirements and test circuits for silicon PN-junction voltage limiters (30th August 2019) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (28 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗