Socket Rings: Three separate ring circuits are often used for sockets around the home, one upstairs, one downstairs and one for the kitchen. Each separate ring is fed from the consumer unit via an individual 32A type B circuit breaker and a separate 30mA RCCB via a split
READ MOREIn Part 6 Chapter 62 of the 17th Edition BS 7671 we find guidance on completing a periodic inspection and test on an existing electrical installation. Section 621: 621.1contains the where, why and 621.2 to 612.4 is all of the whats and the who is mentioned in 621.5
READ MOREAppendix 3: BS7671 (2015) RCDs From Table 3A Time / Current RCDs ‘disconnection times’ Non-delay: Residual current of 1 x its rating = 300ms max Residual current of 2 x its rating = 150ms max Residual current of 5 x its rating = 40ms max Delay ‘S’: Residual
READ MOREBS7671 requires an Electrical Installation Certificate (EIC) accompanied with a Schedule of Inspection and a Schedule of Test Results is issued with all new electrical installation work. The Electrical Installation Certificate (EIC) gives the client the re-assurance that the installation complies with the latest requirements of the standards
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