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British StandardBS 7671"Requirements for Electrical Installations. IET Wiring Regulations", informally called in the electrical communityThe "Regs", is the national standard in theUnited Kingdomfor electrical installation and the safety ofelectrical wiringin domestic, commercial, industrial, and other buildings, also in special installations and locations, such as marinas or caravan parks and medical locations[1]
In general, BS 7671 applies to circuits supplied at nominal voltages (Uo) up to and including 1000 volts AC or 1500 volts DC. The standard therefore covers the Extra Low Voltage (ELV) range (0-50V AC, 0-125V DC), and the Low Voltage (LV) range (50-1000V AC, 125-1500V DC). The frequencies covered for AC are 50 Hz, 60 Hz, and 400 Hz, used in the UK for houses, offices, and commerce. It did not become a recognizedBritish Standarduntil the publication of the 16th edition in 1992. The standard takes account of the technical substance of agreements reached inCENELEC.[2]
The current version is BS 7671:2018 (the 18th Edition) issued in 2018 and came into effect from 1 January 2019.[3]Amendment 1 to the 18th Edition was published in February 2020 but the only changes were to section 722 (Electric Vehicle Charging Installations). These changes came into immediate effect upon publication release, unlike previous amendments where 6 months elapsed before changes became compliant.[4]BS 7671 is also used as a national standard byMauritius,St Lucia,Saint Vincent and the Grenadines,Sierra Leone,Singapore,Sri Lanka,Trinidad and Tobago,Uganda,Cyprus, and several other countries, which base their wiring regulations on
Tamworth (/ˈtæmwərθ/) is a large market town and borough in Staffordshire, England, 14 miles (23 km) north-east of Birmingham and on the West Coast Main Line. The town adjoins Warwickshire to the south and east, Lichfield to the north and west and local junctions of the M6 Toll motorway. It takes its name from the River Tame, which flows through it. Its resident population (mid-2019 est.) was 76,696.
Tamworth was historically divided between Warwickshire and Staffordshire until 1889, when the town was placed entirely in Staffordshire.[1]
Tamworth hosts a simple but elevated 12th century castle, a well-preserved medieval church (the Church of St Editha) and a Moat House. Tamworth was the capital of the Anglo-Saxon Kingdom of Mercia during the Heptarchy of seven kingdoms and throughout its later, greater, form.
The town's industries include logistics, engineering, clothing, brick, tile and paper manufacture. Until 2001 one of its factories was Reliant, which produced the Reliant Robin three-wheeler car and the Reliant Scimitar sports car.
The Snowdome, a prototype real-snow indoor ski slope is in Tamworth and 1.7 miles (2.7 km) south is Drayton Manor Theme Park and one of the many marinas serving the Coventry Canal and Birmingham and Fazeley Canal which combine south of the town.
