ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Top Posters(30 Days)
Potseal 11
Recent Posts
Dimmable LED 2x4 lay in fixtures
by HotLine1. 04/24/17 05:43 PM
Old decora style outlets
by Lostazhell. 04/22/17 07:59 PM
Permit Snafus...AHJs and Contractors Jump in
by gfretwell. 04/22/17 01:11 PM
How do you find a good employee?
by HotLine1. 04/22/17 10:44 AM
Electrode boilers question
by SteveFehr. 04/21/17 08:32 AM
New in the Gallery:
SE cable question
Popular Topics(Views)
234,712 Are you busy
169,457 Re: Forum
162,765 Need opinion
Who's Online Now
0 registered members (), 47 guests, and 7 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate This Thread
#141694 - 10/06/04 05:29 AM What about HID's?  
Text  Offline
Junior Member
Joined: May 2004
Posts: 16
Lipa City, Philippines
Hello everyone,

1. Can anybody show me the diagram of HID circuitry?(I mean how should i connect the capacitor, ignitor, ballast and the bulb).

2. What's the difference between elliptical, tubular and linear bulbs, is there any specific use?

3. Can i switch higher ballast wattage with lower bulb wattage or vice versa? what will be the effect?

4. What if i directly plug the bulb without capacitor or ballast or ignitor, will it blow?
(i dont want to experiment it's quite expensive.)

Thank You in advance!


Test Equipment:
Large Selection of Test Equipment For Electrical, HVAC, Test & Measurement
Large Selection of Test Equipment For Electrical, HVAC, Test & Measurement

#141695 - 10/06/04 08:30 AM Re: What about HID's?  
Trumpy  Offline


Member
Joined: Jul 2002
Posts: 8,211
SI,New Zealand
Hi Text,
By HID lighting I take it you mean High Intensity Discharge lighting.
HID encompasses the following types of lighting:
  • Mercury Vapour.
  • Sodium Discharge (High and Low Pressure types).
  • Metal Halide.

Please bear in mind that some lamps have thier own starting gear inside the lamp itself, (called a Self-Ballasted lamp) and others require a ballast matched to the wattage of the lamp to be used.
There really isn't much difference between the various shapes of lamps, it just depends upon what type of fitting the lamp is being used in.
I wouldn't personally intermix lamps and ballasts of different wattages, the lamp may not like it too much.
Sorry I can't help with any circuit diagrams, but I think Scott35 has some diagrams in the Technical Reference area, if I remember correctly.
One thing I do know is that you need an Ignitor unit on Metal Halide lamps to strike the lamp.
Here's some links to some circuit diagrams in the Tech Ref. area.
First link
Second link
Discussion on HID Ballasts

Hope that this is of some help.

Mike :]

{Message edited to add in links}


[This message has been edited by Trumpy (edited 10-06-2004).]


Let's face it, these days if you're not young, you're old - Red Green grin

#141696 - 10/10/04 03:17 AM Re: What about HID's?  
Trumpy  Offline


Member
Joined: Jul 2002
Posts: 8,211
SI,New Zealand
Just a small addendum to my original post.
The use of HID lighting is generally only used in areas where constant lighting is required, the likes of warehouses, factories and so forth.
HID lighting has the disadvantage of long starting/warm-up times and cannot be used where instant light is required, the same principle also applies where there is a supply failure, as in the place will be dark until the lamps reheat and strike.
If you'd like more information Text, please ask away. [Linked Image]


Let's face it, these days if you're not young, you're old - Red Green grin


Member Spotlight
richard
richard
L.I. New York
Posts: 94
Joined: August 2003
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: 0.011s Queries: 14 (0.002s) Memory: 0.7535 MB (Peak: 0.8790 MB) Zlib enabled. Server Time: 2017-04-26 07:47:31 UTC