Magnitude and Duration of Inrush on various lighting technologies

Click For Summary

Discussion Overview

The discussion centers around the magnitude and duration of inrush currents associated with various lighting technologies, including incandescent bulbs and LEDs. Participants seek information on how these inrush characteristics vary with different ambient temperatures and types of light bulbs.

Discussion Character

  • Exploratory
  • Technical explanation
  • Homework-related

Main Points Raised

  • One participant requests a table detailing the inrush magnitude and duration for various lighting technologies.
  • Another participant notes that the duration of inrush is relative to the ambient temperature of a light bulb, suggesting that inrush duration will differ from room temperature to maximum temperature.
  • Questions are raised about the specific time frames for inrush durations, with inquiries into whether they are in the range of 20ms, 200ms, or 20s.
  • A participant suggests searching for "inrush" on a Wikipedia page about incandescent light bulbs for a general idea of inrush characteristics.
  • There is acknowledgment of the usefulness of the information provided, but a request for additional sources regarding other lighting technologies remains open.

Areas of Agreement / Disagreement

Participants do not appear to reach a consensus on specific values for inrush duration or magnitude, and multiple views on the topic remain unresolved.

Contextual Notes

The discussion lacks specific data on inrush characteristics for various lighting technologies beyond incandescent bulbs and LEDs. There are also unresolved questions regarding the influence of temperature on inrush duration.

mgookin
Messages
11
Reaction score
0
Hi:

I'm wondering where I can find a table with the magnitude and duration of inrush on the many various lighting technologies at the various levels they come in.

Any suggestions?

Thanks!
 
Engineering news on Phys.org
OK I'll make the question more generalized.

We know the duration of inrush is relative to ambient temperature of a light bulb.

From room temp to Tmax will be something.
And from zero deg to Tmax will be more.

But are we talking about 20ms, 200ms, 20s, etc?

Anyone have a clue for any type of light bulb?

Thanks!
 
mgookin said:
OK I'll make the question more generalized.

We know the duration of inrush is relative to ambient temperature of a light bulb.

From room temp to Tmax will be something.
And from zero deg to Tmax will be more.

But are we talking about 20ms, 200ms, 20s, etc?

Anyone have a clue for any type of light bulb?

Thanks!

Search for "inrush" on this page:

http://en.wikipedia.org/wiki/Incandescent_light_bulb

That should give you a ballpark idea for incandescent bulbs. I'm no help on the other lighting technologies -- well, except for LEDs :-p
 
berkeman said:
Search for "inrush" on this page:

http://en.wikipedia.org/wiki/Incandescent_light_bulb

That should give you a ballpark idea for incandescent bulbs. I'm no help on the other lighting technologies -- well, except for LEDs :-p

Thank you Berkeman. That is very useful information. If anyone knows any sources for other lighting technologies that would help as well. Thanks again.
 

Similar threads

  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 15 ·
Replies
15
Views
4K
  • · Replies 4 ·
Replies
4
Views
2K
  • · Replies 3 ·
Replies
3
Views
2K
  • · Replies 32 ·
2
Replies
32
Views
4K
  • · Replies 1 ·
Replies
1
Views
5K
Replies
21
Views
3K
  • · Replies 3 ·
Replies
3
Views
3K
  • · Replies 5 ·
Replies
5
Views
2K
  • · Replies 25 ·
Replies
25
Views
1K