A/B Switching Question... - Electrical - Contractor Talk

A/B Switching Question...

 
Thread Tools Search this Thread Display Modes
Old 06-27-2010, 07:45 PM   #1
Project Manager HFH..
 
JumboJack's Avatar
 
Trade: GC
Join Date: Aug 2007
Location: Lakewood CA.
Posts: 3,711
Rewards Points: 2,004

A/B Switching Question...


I don't know if this is nation wide but here most commercial lighting applications need to have the lighting a/b switchable.

What I was thinking about the other day is this....

This is for commercial only......

The JHA looks at the size/area to be lighted and mandates the amount of lumen's needed to illuminate.I assume this is to keep the place from being too dark in certain areas.Correct?

Then they make it mandatory to be able to turn off 50% of the lights with a/b switching to conserve energy...

Am I missing some obvious logic?
__________________
in texas with framing and cornish people will do it for 3.00 a foot. What do yall think about that? Just laber
JumboJack is offline  

Warning: The topics covered on this site include activities in which there exists the potential for serious injury or death. ContractorTalk.com DOES NOT guarantee the accuracy or completeness of any information contained on this site. Always use proper safety precaution and reference reliable outside sources before attempting any construction or remodeling task!

   

Advertisement

 

Old 06-27-2010, 10:53 PM   #2
I own stock in FotoMat!
 
480sparky's Avatar
 
Trade: 132 on Bush, I've got him at gunpoint!
Join Date: Jan 2009
Location: Iowa
Posts: 12,383
Rewards Points: 13,024

Re: A/B Switching Question...


Nothing mandated in my area, but typically the 50% reduction in lighting would meet the minimum lighting level allowed, while 100% would be the lighting needed for the task.

Advertisement

__________________
This post has been modified from its original version. It has been formatted to fit this screen and edited for content.
480sparky is online now  
The Following User Says Thank You to 480sparky For This Useful Post:
JumboJack (06-27-2010)
Old 06-28-2010, 12:40 AM   #3
Fire up the BBQ
 
griz's Avatar
 
Trade: GC
Join Date: Nov 2009
Location: ex-calif
Posts: 23,631
Rewards Points: 3,056

Re: A/B Switching Question...


JJ, What seems to be the up & coming thing is occupancy sensors. The POCO really pushes them & they are popping up on funnies more often.
griz is online now  


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Question from lawyer trying to help contractor scp Business 52 02-25-2011 01:23 AM
Contract question MACEXCAVATING Excavation & Site Work 4 12-20-2008 09:24 PM
HVAC Licensing question kdan General Discussion 2 08-25-2008 08:17 AM

Join Now... It's Fast and FREE!

I am a professional contractor
I am a DIY Homeowner
Drywall Talk is for
PROFESSIONAL CONTRACTORS ONLY!

At DrywallTalk.com we cater exlusivly to professional contractors who make their living as a contractor. Knowing that many homeowners and DIYers are looking for a community to call home, we've created www.DIYChatroom.com DIY Chatroom is full of helpful advices and perfect for DIY homeowners.

Redirecing in 10 seconds
No Thanks
terms of service

Already Have an Account?