81. BS EN 60601-1-3 AMD2. Medical electrical equipment. Part 1-3. General requirements for basic safety and essential performance. Collateral Standard: Radiation protection in diagnostic X-ray equipment (7th August 2020) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (7 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
82. BS EN 60674-3-4 Ed.2.0. Specification for plastic films for electrical purposes. Part 3. Specifications for individual materials. Sheets 4 to 6: Requirements for polyimide films used for electrical insulation (5th June 2020) 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) ↗
83. BS EN 60700-1 AMD1. Thyristor valves for high voltage direct current (HVDC) power transmission. Part 1. Electrical testing (8th May 2020) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (7 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
84. BS EN 60700-2 AMD1. Thyristor valves for high voltage direct current (HVDC) power transmission. Part 2. Terminology (17th July 2020) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (6 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
85. BS EN 60947-5-3. Low-voltage switchgear and controlgear. Part 5-3. Control circuit devices and switching elements. Requirements for proximity devices with defined behaviour under fault conditions (PDDB) (5th May 2022) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (65 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
86. BS EN 60974-1 AMD AA. Arc welding equipment. Part 1. Welding power sources (15th June 2022) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (11 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
87. BS EN 61000-3-12 AMD1 FRAG1. Electromagnetic compatibility (EMC). Part 3-12. Limits. Limits for harmonic currents produced by equipment connected to public low-voltage systems with input current >16 A and ≤ 75 A per phase (29th October 2019) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (8 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
88. BS EN 61000-3-3 AMD2. Electromagnetic compatibility (EMC). Part 3-3. Limits. Limitation of voltage changes, voltage fluctuations and flicker in public low-voltage supply systems, for equipment with rated current ≤16 A per phase and not subject to conditional connection (15th May 2020) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (9 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
89. BS EN 61000-3-3. Electromagnetic compatibility (EMC). Part 3. Limits. Section 3. Limitation of voltage fluctuations and flicker in low-voltage supply systems for equipment with rated current 16 A (14th February 2023) 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) ↗
90. BS EN 61009-1 CORR1. Residual current operated circuit-breakers with integral overcurrent protection for household and similar uses (RCBOs). Annex N. Additional requirements and tests for RCBOs consisting of one residual current protection function and several independent two-pole overcurrent protection functions. (27th March 2020) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (15 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗