ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
ShoutChat Box
Recent Posts
Smoke & mirrors?
by HotLine1 - 09/21/20 03:42 PM
Pool Lights?
by Papa - 09/18/20 05:26 PM
Ever been afflicted by Gout?
by mbhydro - 09/15/20 05:50 PM
Questioning the electrical norms
by gfretwell - 09/13/20 01:17 PM
120/208 gives 240? please clarify
by NORCAL - 09/13/20 01:08 AM
New in the Gallery:
Facebook follies, bad wiring
FPE in Germany pt.2
Who's Online Now
0 registered members (), 13 guests, and 6 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
Safety Switch -- "Dimple" in Lieu of "Hole" #80503 04/23/02 03:22 PM
Joined: Oct 2000
Posts: 2,749
Joe Tedesco Offline OP
Member
Can that dimple be drilled out to allow the use of a padlock, while in the "ON" position, especially in a supervised public location like a baseball stadium?

Does anyone know about any legal case that might cover this situation?

[This message has been edited by Joe Tedesco (edited 04-23-2002).]


Joe Tedesco, NEC Consultant
2017 / 2014 NEC & Related Books and Study Guides
Re: Safety Switch -- "Dimple" in Lieu of "Hole" #80504 04/23/02 05:49 PM
Joined: Apr 2002
Posts: 2,527
B
Bjarney Offline
Moderator
Where opening of a disconnect would create a hazard, I don’t think you could omit the lock. For example, if the switch served lighting indoors or outdoors, operating the switch at night could create a hazard. An open disconnect for a storm-water pump could create a flooding hazard, and may not be evident until an area becomes ‘submersed.’ There are a number of situations where preventing a switch from being operated (opened or closed) at the wrong time could be considered “practical safeguarding of persons and property.”

But then, I wonder if any switch manufacturer provides printed instructions on proper “use” of the dimple?

Re: Safety Switch -- "Dimple" in Lieu of "Hole" #80505 04/24/02 09:14 AM
Joined: Oct 2000
Posts: 2,749
Joe Tedesco Offline OP
Member
[Linked Image]
DIMPLE

[Linked Image]
No Dimple

Which one is permitted?


Joe Tedesco, NEC Consultant

Featured:

2020 National Electrical Code
2020 National Electrical
Code (NEC)

* * * * * * *

2017 Master Electrician Exam Preparation Combos
2017 NEC Electrician
Exam Prep Combos:
Master / Journeyman

 

Member Spotlight
RH1
RH1
California
Posts: 22
Joined: August 2009
Show All Member Profiles 
Top Posters(30 Days)
Trumpy 8
NORCAL 3
Popular Topics(Views)
269,957 Are you busy
204,381 Re: Forum
192,599 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.7.3