ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Top Posters(30 Days)
twh 10
Admin 4
Recent Posts
Windows 10, who's upgraded?
by ElectricianBud. 05/27/17 11:02 AM
How do you find a good employee?
by ElectricianBud. 05/27/17 10:58 AM
Recall notice: Bosch Solar panels
by ElectricianBud. 05/27/17 10:53 AM
Correct rotation, wrong sequence
by Potseal. 05/27/17 12:15 AM
Dryer, Range grounding from "Main" panel
by sparkync. 05/25/17 05:49 PM
New in the Gallery:
SE cable question
Popular Topics(Views)
236,977 Are you busy
171,994 Re: Forum
164,865 Need opinion
Who's Online Now
0 registered members (), 66 guests, and 10 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate This Thread
#98452 - 12/01/04 07:55 AM Section 410.73(G) Disconnecting Means  
Joe Tedesco  Offline
Member
Joined: Oct 2000
Posts: 2,749
Boston, Massachusetts USA
Good reason for the new proposed rule in Article 410 that will become effective in January 2008.
http://www.osha.gov/OshDoc/data_FatalFacts/f-facts60.html

Quote
410.73(G) Disconnecting Means.

In indoor locations, other than dwellings and associated accessory structures, fluorescent luminaires (fixtures) that utilize double-ended lamps and contain ballast(s) that can be serviced in place or ballasted luminaires that are supplied from multiwire branch circuits and contain ballast(s) that can be serviced in place shall have a disconnecting means either internal or external to each luminaire (fixture), to disconnect simultaneously from the source of supply all conductors of the ballast, including the grounded conductor if any.

The line side terminals of the disconnecting means shall be guarded.

The disconnecting means shall be located so as to be accessible to qualified persons before servicing or maintaining the ballast.

This requirement shall become effective January 1, 2008.

Exception No. 1: A disconnecting means shall not be required for luminaires (fixtures) installed in hazardous (classified) location(s).

Exception No. 2: A disconnecting means shall not be required for emergency illumination required in 700.16.

Exception No. 3: For cord-and-plug-connected luminaires, an accessible separable connector or an accessible plug and receptacle shall be permitted to serve as the disconnecting means.

Exception No. 4: A disconnecting means shall not be required in industrial establishments with restricted public access where conditions of maintenance and supervision ensure that only qualified persons service the installation by written procedures.

Exception No. 5: Where more than one luminaire is installed and supplied by other than a multiwire branch circuit, a disconnecting means shall not be required for every luminaire when the design of the installation includes locally accessible disconnects, such that the illuminated space cannot be left in total darkness.


Joe Tedesco, NEC Consultant

2017 / 2014 NEC & Related Books and Study Guides

#98453 - 12/01/04 08:01 AM Re: Section 410.73(G) Disconnecting Means  
iwire  Offline
Moderator
Joined: Jan 2003
Posts: 4,391
North Attleboro, MA USA
Joe my only comment on this is why did they let the manufacturers have until January 1, 2008 to comply.

Three full years to add a disconnect, give me a break.

Don't get me wrong that is aimed at the manufacturers not the NFPA. I would be willing to bet the manufacturers asked for even more time. [Linked Image]

Bob


Bob Badger
Construction & Maintenance Electrician
Massachusetts


Member Spotlight
HotLine1
HotLine1
Brick, NJ USA
Posts: 6,826
Joined: April 2002
Show All Member Profiles 
Featured:

2017 NEC and Related
2017 NEC
Now Available!

Shout Box
Powered by UBB.threads™ PHP Forum Software 7.6.0
Page Time: 0.009s Queries: 14 (0.002s) Memory: 0.7456 MB (Peak: 0.8608 MB) Zlib enabled. Server Time: 2017-05-29 13:20:03 UTC