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In a normal electrical circuit, current flows to a light or an appliance through the live wire and flows back to the power station through the neutral wire, which is connected to the earth. Occasionally, however , something goes wrong with this operation. If for example, a piece of flex insulation is damaged, allowing the live wire to make contact with the metal casing of an appliance, then the casing itself becomes live. The danger which then arise is that someone will touch the live metalwork, providing the current with an alternative path to the earth and receiving a possibly lethal shock in the process. It is for this reason that all electrical appliances apart from those double insulated must be connected to an earth wire. In the event of a fault, the earth wire first carries the current along to an earth terminal in the consumer unit. From here, a second wire then takes the current safely to earth usually via the metal sheathing of the Electricity Board뭩 underground service cable, but sometimes by way of a copper clad rod that is driven into the soil. Because of its low resistance, the earth wire allows the current to flow at an increased rate and this in turn blows the appropriate fuse or circuit breaker, thereby cutting off the power supply. Where the mains gas and water pipes are made of metal, these should be linked, or bonded, to the electrical earthing system. Other metalwork such as sinks, baths, tower rails, should also be bonded to earth. See video clips with our works here
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Do you need planning permission? Building Refrences Post Codes we cover
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We operate in the following areas:
Central London (wc1, wc2, ec1, ec2, ec3, ec4): Barbican, Clerkenwell, Monument, Shoreditch, West End, Gray's Inn, Bloomsbury, Holborn, Soho, Moorgate, St Paul's Cray, Tower Hill, St. Paul's, Covent Garden, St Mary's Cray, Belgravia,
North London: (n1, n2, n3, n4, n5, n6, n7, n8, n9, n10, n11, n12, n13, n14, n15, n16, n17, n18, n19, n20, n21, n22)East Barnet, Archway, Finsbury, Alexandra Palace, Fortis Green, Barnet, Kentish Town, Canonbury, Crouch End, East Finchley, Enfield Park, Cockfosters, Enfield, Finsbury Park, Friern Barnet, Epping Forest, Hampstead Garden Suburb, Finchley Central, Islington, Barnsbury, Highbury, Highgate, Hornsey, Lower Edmonton, Tufnell Park, Manor House, New Southgate, Holloway, North Finchley, Hendon, Palmers Green, Pinner Green, Pinner, Ponders End, Muswell Hill, Potters Bar, Woodside Park, Seven Sisters, Winchmore Hill, Southgate, Totteridge, Upper Edmonton, Whetstone, Tottenham, Woodford Green, New Barnet, Stoke Newington
West London: (w1, w2, w3, w4, w5, w6, w7, w8, w9, w10, w11, w12, w13, w14)Isleworth, Acton, Eastcote, Bayswater, Charlton, Brook Green, Chiswick, Ealing, Uxbridge, Greenford, Hanger Lane, Hanwell, Hammersmith, Holland Park, Kensington, Elsham, Notting Hill, East Molesley, Ladbroke Grove, Marylebone, Mayfair, North Kensington, Warwick Avenue, Osterley, Paddington, Perivale, Shepherd's Bush, Strand,Addlestone, West Brompton, Kensal Green, Queens Park, West Ealing,
Northwest London :(nw1, nw2, nw3, nw4, nw5, nw6, nw7, nw8, nw9, nw10, nw11, nw12, nw13, nw14, nw15):Neasden, Plumbers Brent Cross, West Hampstead, Wembley, Camden Town, Northolt, Hampstead,Kilburn, Havering, Golders Green, Harrow, Temple Fortune, Cricklewood, Kingsbury, Plumbers St John's Wood, Greenhill, Harlesden, Colindale, Maida Vale, Mill Hill, Regent's Park, Hampstead Heath, Harrow on the hill, Willesden, Sudbury, Plumbers Swiss Cottage
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Electrical Earthing and Bonding