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
East Anglia in the East of England comprises the four counties of Norfolk, Suffolk, Cambridgeshire and Essex and is close to London. It is well-connected with Europe and the rest of the world through London Stansted Airport, the International Gateway to the East of England. There is also Norwich International Airport and London Southend Airport. The region has an excellent rail service with Greater Anglia, including the Stansted Express.
A recent report shows that East Anglia is home to three out of five of the fastest-growing city economies in the UK. Cambridge topped the list, with Ipswich second and Norwich fifth nationally according to The UK Powerhouse study.
The report reveals that Ipswich had the second-highest rate recorded of GVA growth rate (a measure of the value of goods and services produced) in the UK in the first three months of the year (2.5%), while Norwich enjoyed a growth rate of 2.4%.
Looking forward, the report also predicts the three locations will maintain their top 10 positions by the final quarter of 2028.