Single-phase v three-phase ac current systems
The Illustrated Guide to Electrical Building Services, Third Edition (BG 32/2014), by David Bleicher & Peter Tse, published by BSRIA in 2014, states; ‘A single-phase AC (alternating current) system employs a single live conductor and a single neutral conductor. A three-phase AC system employs three separate live conductors (L1, L2 and L3) and a single neutral conductor. The voltage and frequency in each of the three live conductors is the same, however each is out of phase with the others by one third of a cycle.’
--BSRIA
[edit] Related articles on Designing Buildings Wiki
Featured articles and news
British Architectural Sculpture 1851-1951
A rich heritage of decorative and figurative sculpture. Book review.
A programme to tackle the lack of diversity.
Independent Building Control review panel
Five members of the newly established, Grenfell Tower Inquiry recommended, panel appointed.
Welsh Recharging Electrical Skills Charter progresses
ECA progressing on the ‘asks’ of the Recharging Electrical Skills Charter at the Senedd in Wales.
A brief history from 1890s to 2020s.
CIOB and CORBON combine forces
To elevate professional standards in Nigeria’s construction industry.
Amendment to the GB Energy Bill welcomed by ECA
Move prevents nationally-owned energy company from investing in solar panels produced by modern slavery.
Gregor Harvie argues that AI is state-sanctioned theft of IP.
Heat pumps, vehicle chargers and heating appliances must be sold with smart functionality.
Experimental AI housing target help for councils
Experimental AI could help councils meet housing targets by digitising records.
New-style degrees set for reformed ARB accreditation
Following the ARB Tomorrow's Architects competency outcomes for Architects.
BSRIA Occupant Wellbeing survey BOW
Occupant satisfaction and wellbeing tool inc. physical environment, indoor facilities, functionality and accessibility.
Preserving, waterproofing and decorating buildings.