Editing Heating element (section)

== Life cycle ==
The life of a heating element specifies how long it is expected to last in an application. Generally heating elements in a domestic appliance will be rated for between 500 and 5000 hours of use, depending on the type of product and how it is used.<ref name=":1" />{{Rp|page=164}}

A thinner wire or ribbon will always have a shorter life than a thicker one at the same temperature.<ref name=":1" />{{Rp|page=58}}

Standardized life tests for resistance heating materials are described by [[ASTM International]]. Accelerated life tests for Ni-Cr(Fe) alloys<ref>{{Cite report |url=http://www.astm.org/cgi-bin/resolver.cgi?B76-90R18 |title=Test Method for Accelerated Life of Nickel-Chromium and Nickel-Chromium-Iron Alloys for Electrical Heating |last=B02 Committee |publisher=ASTM International |doi=10.1520/b0076-90r18 |language=en|url-access=subscription }}</ref> and Fe-Cr-Al alloys<ref>{{Cite report |url=http://www.astm.org/cgi-bin/resolver.cgi?B78-90R19 |title=Test Method of Accelerated Life of Iron-Chromium-Aluminum Alloys for Electrical Heating |last=B02 Committee |publisher=ASTM International |doi=10.1520/b0078-90r19 |language=en|url-access=subscription }}</ref> intended for electrical heating are used to measure the cyclic oxidation resistance of materials.