Peidiwch â gorlwytho cylchedau na defnyddio addaswyr sy'n cynnwys sawl plwg - un offeryn trydan yn unig ar gyfer pob soced ar y wal. Os oes rhaid i chi ddefnyddio gwifrau estyn sy'n cynnwys sawl soced, sicrhewch fod gan bob un ffiws ei hun.Peidiwch â cheisio cynnal a chadw neu addasu gosodiadau trydanol, na gosod offerynnau sefydlog fel cawodydd, gwresogyddion stôr neu boptai eich hun. Cyflogwch drydanwr cymwys i wneud y gwaith.Os oes gennych flwch ffiws hen ffasiwn, dylech gael un modern yn ei le sy'n defnyddio torwyr cylchedau. Peidiwch byth â cheisio newid ffiws eich hun.Cyflogwch drydanwr cymwys bob tua pum mlynedd i wirio eich gosodiadau trydan i gyd.
Don’t overload circuits or use multi-plug adaptors – only one appliance or device per wall socket.  If you have to use multi-socket extension leads, make sure they have a separate built-in fuse.Don’t attempt to maintain or adapt electrical installations, or install hard-wired appliances like showers, storage heaters or cookers, yourself. Hire a qualified electrician instead.If you have an old-style fuse box with plug-in fuses, try to have it replaced with a modern one which uses circuit breakers. Never try to repair fuses yourself.Have your whole electrical installation properly checked by a qualified.