Just because there is no flame does not mean there is no risk from electricity. Electric wires do not even have to touch anything for a spark to jump and a fire to start.

Safety tip: Turn off and unplug electrical appliances when they are not being used, unless they are designed to be left on (for example, freezers and dvd/video recorders).

• Watch out for hot plugs and sockets, fuses that blow for no reason, flickering lights, and scorch marks on sockets or plugs.
• Check electrical leads and plugs for wear and tear and faulty wiring. Frayed leads or exposed internal wires are fire risks.
• Do not overload sockets – use one plug in each socket.
• Keep electrical leads, plugs and appliances away from water.
• Keep electrical appliances clean and in good working order, and have them serviced regularly. This is especially important for washing machines and tumble dryers that may be left
  on overnight.
• Never buy an electrical appliance without knowing it is safe to use. New appliances should have the British or European safety mark on it. If the appliance is second-hand, always have it
  checked by a qualified electrician before you use it.

• Prevent overheating by using the right fuse
• Throw away and replace damaged cables
• Never use tape to mend or join cables
• Never run cables under mats or carpets where you cannot see wear and tear
• Do not overload sockets
• Wire plugs carefully
• Never cut sealed plugs off to use them again