521. BS 6833-6:1992. Apparatus using cordless attachments (excluding cellular radio apparatus) for connection to analogueinterfaces of public switched telephone networks. Specification for cordless portable parts and cordless fixed parts asseparate stand alone items of apparatus. (31st October 1992) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (64 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
522. Draft standard to match to and work with ETS 300 001/NET4 "Apparatus using cordless attachments (excluding cellular radio apparatus) for connection to analogue interfaces of public switched telephone networks run by certain public telecommunications operators". Specification for cordless telephone apparatus using radio links Part 2, (31st October 1992) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (64 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
523. Guide to hierarchical interconnection technology. (15th March 1993) 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) ↗
524. Safety in electroheat installations. General requirements Part 1, (15th November 1993) 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) ↗
525. On-load tap-changers. (15th March 1994) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (48 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
526. Intrinsically safe power supplies for use in coal mines. Specification for rechargeable battery units Part 3, (30th September 1982) 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) ↗
527. Specification for electrical measuring instruments for use on intrinsically safe circuits in coal mines. (28th August 1987) 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) ↗
528. Elements of electrical and optical connection. Test methods. Discontinuity of contacts in the microsecond range Part B4, (15th February 1994) 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) ↗
529. Specification for circuit-breakers for equipment (CBE). (15th July 1994) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (88 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
530. Shunt power capacitors of the self-healing type for a.c. systems having a rated voltage up to and including 1000 V. Ageing test, self-healing test and destruction test Part 2, (15th March 1994) 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) ↗