What is the best way to wire a house to reduce electromagnetic fields in the home?
The current UK practice of wiring a house using ‘ring’ circuits can often lead to high electric and magnetic fields. In Europe ‘radial’ or ‘tree and branch’ wiring is more common than in the UK and these result in much lower levels of EMFs in buildings. In addition, running wires in metal conduit will reduce the fields to virtually zero. For new build homes this is the best option. There are different types of screened cable available when running wires in metal conduits is not possible. Mineral insulated cables can be expensive to install, some are fire retardant and are likely to need extra residual current devices or RCDs. There are difficulties with some braided cables which need earthing at every junction point, and some need extra space to allow for the necessary larger bending requirement. Most cables, including reasonably priced, flexible cable can be bought from an electrical goods supplier, such as used by professional electricians. Very competent DIYers can also re-wire hous
