Connecting A Cable Light System To A Track Light System - Electrical - DIY Chatroom Home Improvement Forum


Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Electrical

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Closed Thread
 
Thread Tools Display Modes
Old 11-17-2013, 10:32 AM   #1
Newbie
 
Join Date: Nov 2013
Posts: 15
Rewards Points: 10
Default

Connecting a cable light system to a track light system


Summary Question:

Can a cable track light system use a line voltage track system as a power source?

Power:
Cable Light System: 4 x LEDs @ 6.7 watts. 1 100W transformer.
Track Light System: 5 x LEDs @ 6.7 watts. Line voltage (120V).

Details:

I am planning to install a cable track system (one of those with two parallel cables and light suspended from them). However, the electrical box is across the room on the top of the wall about 11 ft away. Also my ceiling as solid concrete and inaccessible for wiring.

So instead of drawing some kludge wire to the cable light system, I'm planning to add a line voltage track light system across the room and connect the end to power the cable system 100W transformer.

Am I correct to assume, since I am using low watt LEDs across the board, the cable light system will have sufficient power from the line voltage track and will be safe?

Any thoughts and advice will be greatly appreciated!

Advertisement


Last edited by megabyzus; 11-17-2013 at 11:37 AM.
megabyzus is offline  
Old 11-17-2013, 10:35 AM   #2
Licensed Electrician
 
k_buz's Avatar
 
Join Date: Mar 2012
Location: SE Wisconsin
Posts: 4,343
Rewards Points: 2,006
Default

Connecting a cable light system to a track light system


No, that would not be legal. I don't even know of a connector that would allow you to do such a thing.

I do know that there are cable track systems that allow you to wall mount the end feed, but you will have to do you own research on that.

Advertisement

__________________
__________________________________________________ ______________
Answers based on the National Electric Code. Always check local amendments.


k_buz is offline  
Old 11-17-2013, 10:36 AM   #3
Licensed Electrician
 
k_buz's Avatar
 
Join Date: Mar 2012
Location: SE Wisconsin
Posts: 4,343
Rewards Points: 2,006
Default

Connecting a cable light system to a track light system


Not to mention that your idea would look hideous. It would be much more atheistically pleasing to run wiremold to a box, instead of a track.
__________________
__________________________________________________ ______________
Answers based on the National Electric Code. Always check local amendments.


k_buz is offline  
Old 11-17-2013, 10:46 AM   #4
Newbie
 
Join Date: Nov 2013
Posts: 15
Rewards Points: 10
Default

Connecting a cable light system to a track light system


WHy would it be illegal? As for the connection, you can connect the two using a standard track plug-in. Can you please be technically specific as to what the problem is?

As for aesthetics, again I don't understand. I need a track light system. I need a cable light system. The two are very close to each other. I connect them. Am I misunderstanding you?

Thanks!
megabyzus is offline  
Old 11-17-2013, 10:51 AM   #5
Licensed Electrician
 
k_buz's Avatar
 
Join Date: Mar 2012
Location: SE Wisconsin
Posts: 4,343
Rewards Points: 2,006
Default

Connecting a cable light system to a track light system


The track would have to be listed for feed thru applications. I've never looked for such a beast, but I've never seen it done like you are suggesting.

Lighting track will have a rated max wattage to be connected or a max footage to be connected. There is no way to confirm that you are conforming to the listing if you feed thru a track.
__________________
__________________________________________________ ______________
Answers based on the National Electric Code. Always check local amendments.


k_buz is offline  
Old 11-17-2013, 10:53 AM   #6
Licensed Electrician
 
k_buz's Avatar
 
Join Date: Mar 2012
Location: SE Wisconsin
Posts: 4,343
Rewards Points: 2,006
Default

Connecting a cable light system to a track light system


I was interpreting that you were installing the track simply to feed the cable track. It's a no go either way.
__________________
__________________________________________________ ______________
Answers based on the National Electric Code. Always check local amendments.


k_buz is offline  
Old 11-17-2013, 11:06 AM   #7
Newbie
 
Join Date: Nov 2013
Posts: 15
Rewards Points: 10
Default

Connecting a cable light system to a track light system


Quote:
Originally Posted by k_buz View Post
The track would have to be listed for feed thru applications. I've never looked for such a beast, but I've never seen it done like you are suggesting.

Lighting track will have a rated max wattage to be connected or a max footage to be connected. There is no way to confirm that you are conforming to the listing if you feed thru a track.

I understood that *might* be correct for a lo-voltage track. However, I am referring to a line voltage track. Can you provide links indicating a 11 foot line voltage track is a problem? Better would be describing the physics. What are the physics?: 10-11 foot line voltage track with max watts draw of 63 watts (35 from track and 28 from cable track). Why is that a problem? That seems well within the power requirements of a simple track. Again, I'm looking for very specific indications and numbers why this is a problem.

Thanks!
megabyzus is offline  
Old 11-17-2013, 11:17 AM   #8
Licensed Electrician
 
k_buz's Avatar
 
Join Date: Mar 2012
Location: SE Wisconsin
Posts: 4,343
Rewards Points: 2,006
Default

Connecting a cable light system to a track light system


The hard track is not listed as a feed thru track. It is only listed to supply power to associated track heads.

From the NEC's definition...

Quote:
Lighting Track. A manufactured assembly designed to
support and energize luminaires that are capable of being
readily repositioned on the track
. Its length can be altered
by the addition or subtraction of sections of track.
As you can see, the definition alone prohibits you from feeding a separate track with a track.
__________________
__________________________________________________ ______________
Answers based on the National Electric Code. Always check local amendments.


k_buz is offline  
Old 11-17-2013, 11:23 AM   #9
Newbie
 
Join Date: Nov 2013
Posts: 15
Rewards Points: 10
Default

Connecting a cable light system to a track light system


Quote:
Originally Posted by k_buz View Post
The hard track is not listed as a feed thru track. It is only listed to supply power to associated track heads.

From the NEC's definition...



As you can see, the definition alone prohibits you from feeding a separate track with a track.
I'm afraid I don't read it that way at all. Where does it say that? In fact, it says it can be ALTERED TO ADD TRACK. In my case, the 'track' is a much lower power cable system. Plus, I'm still waiting on the physics. Please describe the physics. Note the line voltage track is rated at 150W which I'm going to draw only about half of that from it.

Can anyone help confirm/deny my calculations? Thanks!

Last edited by megabyzus; 11-17-2013 at 11:26 AM.
megabyzus is offline  
Old 11-17-2013, 11:31 AM   #10
Licensed Electrician
 
k_buz's Avatar
 
Join Date: Mar 2012
Location: SE Wisconsin
Posts: 4,343
Rewards Points: 2,006
Default

Connecting a cable light system to a track light system


It's not about physics. It's the listing of the equipment.

I will admit, if you aren't used to reading these codes it may be confusing, but you have to look at every word and how it is used to determine what the code is saying.

Quote:
Lighting Track. A manufactured assembly designed to
support and energize luminaires that are capable of being
readily repositioned on the track. Its length can be altered
by the addition or subtraction of sections of track.
It is specifically saying that the track is designed to support and energize luminaires on THAT track.

It does say addition or subtraction, however, the addition/subtraction would be of that specific track, not a completely separate track system. You are proposing two separate track systems, not one.
__________________
__________________________________________________ ______________
Answers based on the National Electric Code. Always check local amendments.



Last edited by k_buz; 11-17-2013 at 11:34 AM.
k_buz is offline  
The Following User Says Thank You to k_buz For This Useful Post:
gregzoll (11-17-2013)
Old 11-17-2013, 11:35 AM   #11
Newbie
 
Join Date: Nov 2013
Posts: 15
Rewards Points: 10
Default

Connecting a cable light system to a track light system


Quote:
Originally Posted by k_buz View Post
It's not about physics....
My question was/is not about regulations. My question was/is about the physics. Do you see a problem with the physics? If you do please advise.

Thanks!
megabyzus is offline  
Old 11-17-2013, 11:40 AM   #12
Licensed Electrician
 
k_buz's Avatar
 
Join Date: Mar 2012
Location: SE Wisconsin
Posts: 4,343
Rewards Points: 2,006
Default

Connecting a cable light system to a track light system


And with that...I'm done.
__________________
__________________________________________________ ______________
Answers based on the National Electric Code. Always check local amendments.


k_buz is offline  
The Following 2 Users Say Thank You to k_buz For This Useful Post:
gregzoll (11-17-2013), jbfan (11-17-2013)
Old 11-17-2013, 11:53 AM   #13
Newbie
 
Join Date: Nov 2013
Posts: 15
Rewards Points: 10
Default

Connecting a cable light system to a track light system


Quote:
Originally Posted by k_buz View Post
And with that...I'm done.
Yes, the math is where it get's hard!

Does anyone here have experience with explaining the physics of my rather simple set up? I like feedback in calculations in my power requirements. To repeat:

I would like to power my cable light system via my track light system where:
1. Track light system('line voltage' i.e. 120V): has five 6.7 watt LEDs (~35 watts total). The track system is designed to handle 100 watts minimum.
2. Cable light system ('lo voltage' i.e. 12V): has four 6.7 watt LEDs (~28 watts)
2A: The cable track is connect to the source via a 100W transformer.

If I power the cable system via the track system, the max draw on the track system will be 63 watts (much less than 100 watts). Even though there is a 100 watt transformer in between. Is this calculation correct?

Thanks!

Last edited by megabyzus; 11-17-2013 at 11:59 AM.
megabyzus is offline  
Old 11-17-2013, 12:26 PM   #14
Newbie
 
Join Date: Nov 2013
Location: Burkburnett TX
Posts: 15
Rewards Points: 10
Default

Connecting a cable light system to a track light system


Physics? Simple math? K_buz is right. However, rather than have him explain why this can't be done only to have you question his logic, just put the dang contraption together, install it in your home then call the fire dept, grab some dogs and buns and enjoy the cookout as your house burns to the ground. :-)
NotaDIY/Pro is offline  
Old 11-17-2013, 12:31 PM   #15
Newbie
 
Join Date: Nov 2013
Posts: 15
Rewards Points: 10
Default

Connecting a cable light system to a track light system


Quote:
Originally Posted by NotaDIY/Pro View Post
Physics? Simple math? K_buz is right. However, rather than have him explain why this can't be done only to have you question his logic, just put the dang contraption together, install it in your home then call the fire dept, grab some dogs and buns and enjoy the cookout as your house burns to the ground. :-)
Why would it burn to the ground? Can you explain that in science rather than cookouts?

Thanks!

Advertisement

megabyzus is offline  
Closed Thread


Thread Tools
Display Modes

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
Please Help! 3 way switches controling 2 light fxtures. HelloMotto Electrical 52 11-05-2014 05:28 PM
Better way of connecting cable loop to roller chain? deleyd General DIY Discussions 1 06-30-2009 11:52 PM
Non-working cable reed with neon light DIY.Willow Electrical 4 02-08-2009 04:26 PM
cable going outside for entrance flood light amakarevic Electrical 23 11-11-2008 01:42 PM
Cable track lighting justtired Electrical 10 09-23-2006 01:53 AM




Top of Page | View New Posts