Editing Switch (section)

===Incandescent loads===
[[File:General-Electric-silent-T-rated-light-switch.jpg|thumb|upright=0.5|A "T-rated" wall switch (the T is for ''Tungsten'' filament)<ref name="Electrical_Power_Systems_Technology_pg337">{{cite book|title=Electrical Power Systems Technology|last1=Fardo|first1=Stephen|last2=Patrick|first2=Dale|date=2009-01-01|publisher=The Fairmont Press, Inc.|page=337|isbn=9780881735864|url=https://books.google.com/books?id=bohwbWi3bUMC&q=switch%20T-rated&pg=PA337|access-date=2015-01-26|url-status=live|archive-url=https://web.archive.org/web/20171224053707/https://books.google.com/books?id=bohwbWi3bUMC&lpg=PA337&dq=switch%20T-rated&pg=PA337#v=onepage&q=switch%20T-rated&f=false|archive-date=2017-12-24 }}</ref> that is suited for incandescent loads]]

When turned on, an [[Incandescent light bulb|incandescent lamp]] draws a large [[inrush current]] of about ten times the steady-state current; as the filament heats up, its resistance rises and the current decreases to a steady-state value. A switch designed for an incandescent lamp load can withstand this inrush current.<ref name="Electrical_Power_Systems_Technology_pg337"/>