ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Top Posters(30 Days)
Recent Posts
VFD MotorFeeders
by gfretwell. 10/17/17 10:01 PM
What do you do?
by gfretwell. 10/17/17 01:08 AM
Good ol' copper pipe in the fuse holder trick
by HotLine1. 10/16/17 07:16 PM
Generator Cable Sizing
by HotLine1. 10/16/17 07:13 PM
Another generator question
by HotLine1. 10/16/17 07:02 PM
New in the Gallery:
Gallery Test
Popular Topics(Views)
241,353 Are you busy
177,304 Re: Forum
168,929 Need opinion
Who's Online Now
0 registered members (), 43 guests, and 7 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate This Thread
#5106 - 11/03/01 06:42 AM the Dog ate my homework...  
sparky  Offline
Member
Joined: Oct 2000
Posts: 5,311
I am besieged as an electrical contractor by all this energy saving, retrofit, efficacy & or efficacious lighting.
I get mailings ,as well as solictitaions to 'lighting'luncheons.
everyone say 'efficacious' now....chomp, chomp the celery...

There are homes that are retrofitted via programs with rebates that result in a PL-13 or two per room, at which the resident kicks back bragging about how much $$$ they're saving & how 'green' they are.

Of course your saving $$$$, BECAUSE YOUR IN THE %$@# DARK, YOU 3-TOED SLOTHS!

I have maintained the true MPG ( i.e.- efficacy there's that word again!)is lumens vs watts consumed, and have asked this Q of many of these manufacturer's
(they hate me by now)
As far as i know, there is no universal scale or accountability for this that is shown on ALL packaging.
There would seem to be more fixation on THD
ohmygod....loook at the THD Ethel!
than any such figure.
There should be some way or means to separate this 'manufacturing hype' from reality.

Your thoughts?


Work Gear for Electricians and the Trades

#5107 - 11/03/01 09:29 PM Re: the Dog ate my homework...  
electure  Offline


Member
Joined: Dec 2000
Posts: 4,262
Fullerton, CA USA
It's all a $$ trade off for the quantity and quality of light you get. If you use solely Lumens vs Watts as a criteria then low pressure sodium ought to be just dandy. I doubt even the Eco-Freak-Perched-in-the-Redwood could stand it very long


#5108 - 11/04/01 07:54 AM Re: the Dog ate my homework...  
sparky  Offline
Member
Joined: Oct 2000
Posts: 5,311
I couldn't get used to that yellowish glow makin' everybody look like they got jauntice.

That brings visible spectrum to mind, what is it? 400-700nm? How many elements/fixtures are marked accordingly? I'm told the whiter the light, the more visible spectrum it addresses, if true does less than this inefficent?

We could meet 210-70 with LED's no??
[Linked Image]


#5109 - 11/04/01 08:26 AM Re: the Dog ate my homework...  
electure  Offline


Member
Joined: Dec 2000
Posts: 4,262
Fullerton, CA USA
The fluorescents (including Compacts) are marked in degrees Kelvin. The lower the number, the closer to the red end of the spectrum. Standards are 27K, 30K, 35K, & 41K (as in F032-835).
Although you can hold a light meter below them, and end up with the same reading, the customers always seem to perceive the higher (closer to blue) numbered lamps as brighter.
Some prefer the 27 or 30K lamps, as their light more closely resembles that of the precious "Soft White" incandescent.
There's nothing wrong with Compact Fluorescent lights, other than, like you say, the "hype" and BS that people are spewing forth.


#5110 - 11/04/01 08:54 AM Re: the Dog ate my homework...  
sparky  Offline
Member
Joined: Oct 2000
Posts: 5,311
yes, well....i'm not out to trash fluoresants here, i'm just up to my eyeballs in 'spew'.

there's a story i'll pass on here,

1) the fed's are down on the nuke plants
so...
2) the pwr co's usage continues to grow
so....
3) there are all these 'subsidized' energy saving programs
and...
4) WE ( our trade) are on the bottom of the 'spew' triangle !

anyone gotta towel?



Member Spotlight
mersadrad
mersadrad
Montreal, Quebec, Canada
Posts: 28
Joined: March 2011
Show All Member Profiles 
Featured:

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

 

Shout Box
Powered by UBB.threads™ PHP Forum Software 7.6.0
Page Time: 0.015s Queries: 14 (0.003s) Memory: 0.7689 MB (Peak: 0.9055 MB) Zlib enabled. Server Time: 2017-10-18 07:21:49 UTC