21. BS EN IEC 61010-2-011 AMD AA. Safety requirements for electrical equipment for measurement, control, and laboratory use. Part 2-011. Particular requirements for refrigerating equipment (3rd December 2020) 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) ↗
22. BS EN IEC 61010-2-012. Safety requirements for electrical equipment for measurement; control; and laboratory use. Part 2-012. Particular requirements for climatic and environmental testing and other temperature conditioning equipment (20th June 2023) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (116 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
23. BS EN IEC 61010-2-033 AMD AA. Safety requirements for electrical equipment for measurement, control, and laboratory use. Part 2-033. Particular requirements for hand-held multimeters and other meters for domestic and professional use, capable of measuring mains voltage (25th September 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) ↗
24. BS EN IEC 61290-1-3. Optical amplifiers. Test methods. Part 1-3. Power and gain parameters. Optical power meter method (10th January 2020) 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) ↗
25. BS EN IEC 61557-10 . 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 10. Combined measuring equipment (1st September 2023) 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) ↗
26. BS EN IEC 61557-13. 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. Part 13. Hand-held and hand-manipulated current clamps and sensors for measurement of leakage currents in electrical distribution systems (4th June 2021) 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) ↗
27. BS EN IEC 61557-14. 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. Part 14. Equipment for testing the safety of electrical equipment for machinery (30th April 2021) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (17 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
28. BS EN IEC 61557-9. 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. Part 9. Equipment for insulation fault location in IT systems (7th May 2021) 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) ↗
29. BS EN IEC 61869-1. Instrument transformers. Part 1. General requirements (7th May 2021) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (143 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
30. BS EN IEC 62057-1. Test equipment, techniques and procedures for electrical energy meters. Part 1. Stationary Meter Test Units (MTU) (24th July 2020) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (74 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗