ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Shout Box
Recent Posts
Video: Inventor of the GFCI self-testing shocks
by Bill Addiss. 01/17/18 11:11 PM
FPE in Germany
by HotLine1. 01/17/18 07:07 PM
VDE 0100 to introduce AFCIs
by LongRunner. 01/17/18 10:32 AM
Fujifilm Recalls Power Adapter Wall Plugs
by Admin. 01/16/18 07:04 PM
Air Compressor feeder conductor sizing
by Potseal. 01/15/18 09:08 PM
New in the Gallery:
Housebilding DIY wiring
SE cable question
Who's Online Now
1 registered members (LongRunner), 10 guests, and 15 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
Checking Fluorescent light ballist #129259
12/05/04 09:27 AM
12/05/04 09:27 AM
A
aldav53  Offline OP
Member
Joined: Aug 2001
Posts: 545
Chandler, AZ USA
What should the voltage output on a ballist be on a standard 2 or 4 bulb 4ft fluorescent light fixture. How would you determine they are bad if its not visually obvious?


The Golden Rule - "The man with the gold makes the rule"
Tools for Electricians:
Re: Checking Fluorescent light ballist #129260
12/07/04 10:39 AM
12/07/04 10:39 AM
S
sabrown  Offline
Member
Joined: Dec 2002
Posts: 302
Ogden, Utah, USA
There are many different "standard" ballasts and lacking experience and not knowing if you are measuring starting voltage or filament voltage, I do not know the common answer. The answer would be available from your ballast manufacturer.

Now stating that, Lithonia offers "Fluorescent Ballast Testing" information in the back of their catalog which includes how to test and meter settings. The information appears to be fairly comprehensive.

Remember to wear proper PPE while doing this and take precautions (it would not be in your best interest to fall off a ladder).

Goodluck,
Shane

Re: Checking Fluorescent light ballist #129261
12/11/04 12:22 AM
12/11/04 12:22 AM
Scott35  Offline

Broom Pusher and
Member
Joined: Oct 2000
Posts: 2,708
Anaheim, CA. USA
Allrightee-Now [Linked Image] Here's some data per current issue...

For the Common type Lamp-Ballast Assembly, using "Magnetic" (Linear Reactor) type Ballasting to drive either one or two 48" Lamps, via Rapid Start and Hot Cathode operation method:

** 1: F32T8 Lamp Types:
a: Single Lamp -
* Starting Voltage = 200 VAC,
* Fillament Voltage = 3.4 to 4.5 VAC
b: Two Lamp -
* Starting Voltage = 300 VAC,
* Fillament Voltage = 3.4 to 4.5 VAC

** 2: F40T8 Lamp Types:
a: Single Lamp -
* Starting Voltage = 250 VAC,
* Fillament Voltage = 3.4 to 4.5 VAC
b: Two Lamp -
* Starting Voltage = 385 VAC,
* Fillament Voltage = 3.4 to 4.5 VAC

** 3: F40T12 Lamp Types:
a: Single Lamp -
* Starting Voltage = 200 VAC,
* Fillament Voltage = 3.4 to 4.5 VAC
b: Two Lamp -
* Starting Voltage = 256 VAC,
* Fillament Voltage = 3.4 to 4.5 VAC

These are 430 MA (Milli Amp) Lamps - the ones with the "Standard" Bipin ends.

Ratings for "H.O." (800 MA) and "V.H.O." (1500 MA) types are about the same for their 430 MA counterparts, when Started at 0°F, and around 15% lower when Started at 50°F.

Preheat methods require minimum Voltages of like 108 VAC for smaller Lamps, and like 176 VAC for larger Lamps.

Instant Start methods range from 270 VAC for smaller Lamps, to 675 VAC for larger Lamps.

This should be what you were looking for! [Linked Image]

Scott35


Scott " 35 " Thompson
Just Say NO To Green Eggs And Ham!

Featured:

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

 

Member Spotlight
Tom
Tom
Shinnston, WV USA
Posts: 1,044
Joined: January 2001
Show All Member Profiles 
Top Posters(30 Days)
sparky 20
Admin 20
Potseal 13
Popular Topics(Views)
243,537 Are you busy
180,340 Re: Forum
170,827 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.6.1
(Release build 20180101)
Page Time: 0.015s Queries: 14 (0.004s) Memory: 0.9513 MB (Peak: 1.0768 MB) Zlib enabled. Server Time: 2018-01-18 11:55:30 UTC