ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
ShoutChat
Recent Posts
Lowes Selling this fan
by timmp - 07/25/21 10:58 PM
How's all our Non-US folks doing?
by djk - 07/23/21 09:13 PM
Switched Receptacles -Top or Bottom?
by donles - 07/23/21 10:51 AM
Do You Travel?
by Bill Addiss - 07/20/21 04:26 PM
Backup Generator Done Right
by timmp - 07/18/21 12:20 PM
New in the Gallery:
February, North East Indiana
February, North East Indiana
by timmp, July 25
Red Green would be proud
Red Green would be proud
by timmp, July 25
Who's Online Now
1 members (NORCAL), 26 guests, and 15 robots.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
#45947 12/09/04 12:04 PM
Joined: Jul 2004
Posts: 136
C
cgw Offline OP
Member
A new nursing home is having a high incidence of lighting ballast failures. The lighting is 277V. The ballast manufacturer thinks it is power surges.
I have two possible ideas:
1. The facility test the emergency generator under the building load once a month (the lights are on the generator).
2. I do not know, but maybe the contractor used a common neutral for the lighting circuits.
Any ideas?

#45948 12/09/04 07:24 PM
Joined: Apr 2001
Posts: 507
G
Member
Is this nursing home in york, NE??

The other possibility is that electronic ballasts are crap for reliability!

There is another thread here on this issue. Search on "electronic balasts"

GJ

#45949 12/14/04 08:30 PM
Joined: Nov 2002
Posts: 267
W
Member
Had an old timer come in the other day with an old GE ballast. I said "wow, that looks to be about 20 years old," he said it's closer to 50. I replied, well they don't last that long anymore. he asked why not?!?!? Couldn't help but be amused by his question, all I could say was they just don't build them like they use to.


Link Copied to Clipboard
Featured:

Tools for Electricians
Tools for Electricians
 

* * * * * * *

2020 Master Electrician Exam Preparation Combos
2020 NEC Electrician
Exam Prep Combos:
Master / Journeyman

 

Member Spotlight
Bill Addiss
Bill Addiss
NY, USA
Posts: 4,039
Joined: October 2000
Top Posters(30 Days)
timmp 7
Rachel 4
Popular Topics(Views)
281,535 Are you busy
215,174 Re: Forum
202,017 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.7.5