The IET is carrying out some important updates between 17-30 April and all of our websites will be view only. For more information, read this Announcement
Zoomup:I disagree as "functional switching" is defined on page 20 as;" An operation intended to switch "on" or "off" or vary the supply of electrical energy to all or part of an installation for NORMAL OPERATING PURPOSES." (Caps mine.)
Normal operating purposes like the use of a light switch is NOT involved here. The fused connection unit would only be used occasionally for testing purposes of the emergency light.
Z.
Is testing of emergency lighting not a 'normal' operation? It's certainly not emergency switching. Just because that switching operation may not be of daily frequency doesn't mean it's not 'normal', and some venues, especially places of entertainment could be conducting weekly emergency lighting testing. That seems a pretty 'normal' operation to me.
Zoomup:I disagree as "functional switching" is defined on page 20 as;" An operation intended to switch "on" or "off" or vary the supply of electrical energy to all or part of an installation for NORMAL OPERATING PURPOSES." (Caps mine.)
Normal operating purposes like the use of a light switch is NOT involved here. The fused connection unit would only be used occasionally for testing purposes of the emergency light.
Z.
Is testing of emergency lighting not a 'normal' operation? It's certainly not emergency switching. Just because that switching operation may not be of daily frequency doesn't mean it's not 'normal', and some venues, especially places of entertainment could be conducting weekly emergency lighting testing. That seems a pretty 'normal' operation to me.
We're making some changes behind the scenes to deliver a better experience for our members and customers. Posting and interactions are paused. Thank you for your patience and see you soon!
For more information, please read this announcement