Did you know that halogen light fittings operate at very high temperatures and therefore can be hazardous?
Manufacturers’ instructions that are supplied with compliant light fittings specify safe distances from flammable materials, including materials it can be safely mounted on. The Australian/New Zealand wiring rules electricians follow also has requirements around the safe installation of lighting, particularly downlights.
Incorrectly installed halogen light fittings or those installed using inadequate instructions can potentially cause fires. For example, due to a process called pyrolysis*, halogen light fittings installed too close or on a surface unsuitable for prolonged contact with hot temperatures (e.g. wooden timber joists, building paper, thermal insulation) may cause fires through long-term use.
We have been notified of significant fires in dwellings likely due to pyrolysis, including one case involving the chemical decomposition of wood due to the continuous application of heat from a halogen light fitting.
Halogen light fittings are now commonly replaced by low temperature LED technology. If old halogen light fittings need replacing, we recommend you use LED light fittings as they're safer and cheaper to run.
Make sure you do checks at home or engage an electrician to do this. For halogen light fittings, checks should be done periodically for any indication of overheating – look out for evidence of black/brown discolouration around the light fitting or any odd smells. We also recommend engaging an electrician to check downlights installed in ceiling spaces to prevent the risk of electric shock or falling from height.
*Pyrolysis is the chemical decomposition of substances through action of heat, in the absence of oxygen and may result in the risk of the material catching fire at much lower temperatures.
|