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
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.
The current version is BS 7671:2018 (the 18th Edition) issued in 2018 and came into effect from 1 January 2019.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.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
Rugby is a market town in Warwickshire, England, close to the River Avon. The town has a population of 70,628 (2011 census) making it the second-largest town in the county. The town is the main settlement within the larger Borough of Rugby which has a population of 100,500 (2011 census).
Rugby is on the eastern edge of Warwickshire, near the borders of Leicestershire and Northamptonshire. It is 83 miles (134 km) north of London, 30 miles (48 km) east-southeast of Birmingham, 11 miles (18 km) east of Coventry, and 19 miles (31 km) south southwest of Leicester.
Rugby was a small rural market town until the mid-19th century, when the siting of a major railway junction at the town spurred the development of manufacturing and engineering industry, and the rapid growth of population.
Rugby School, an independent school situated in the town, is the birthplace of Rugby football, which according to legend, was invented in 1823, by a Rugby schoolboy William Webb Ellis. The school was founded in 1567, and rose to national prominence as a public school in the 18th century.