Put lights on their own circuit?

Reply

  #1  
Old 09-13-15, 09:21 AM
S
Member
Thread Starter
Join Date: Sep 2015
Location: USA
Posts: 33
Received 0 Votes on 0 Posts
Put lights on their own circuit?

I have managed to confuse myself. I know that outlets should be on 12 gauge and lights are 14. I have 5 rooms on one circuit and plan to break them up into individual rooms. If I run 12 gauge wire to a junction box and 12 from there to each receptacle, can I run 14 from the same box to the lights and switches (1 room will be a 3way)? Should I run a sixth line from the breaker of 14 to power the lights in all of the rooms?
 
Sponsored Links
  #2  
Old 09-13-15, 09:28 AM
PJmax's Avatar
Group Moderator
Join Date: Oct 2012
Location: Northern NJ - USA
Posts: 57,042
Received 835 Votes on 782 Posts
If you put lighting and receptacles on the same circuit then you must use all #12 wiring.

I'd put the lighting on its own 15A circuit.
 
  #3  
Old 09-13-15, 09:54 AM
S
Member
Thread Starter
Join Date: Sep 2015
Location: USA
Posts: 33
Received 0 Votes on 0 Posts
Can I put 3 bedrooms and 2 bathrooms on a single light circuit? There will be 2 exhaust fans as well.

Rethinking that: Each bathroom should go on its own 20 amp circuit. This covers me for outlets, exhaust fan, and lights. A single lights circuit for all 3 bedrooms on a 15 amp circuit. Then each bedroom gets its own 20 amp circuit for the outlets. That's 6 circuits for 5 rooms. Is this good practice?
 

Last edited by SoloChoneWookie; 09-13-15 at 10:09 AM. Reason: A better thought
  #4  
Old 09-13-15, 10:26 AM
pcboss's Avatar
Forum Topic Moderator
Join Date: Jul 2002
Location: Maryland
Posts: 15,114
Received 69 Votes on 59 Posts
It all depends on the load. What lighting loads are planned? I doubt you are even close even with one lighting circuit.
 
  #5  
Old 09-13-15, 10:40 AM
S
Member
Thread Starter
Join Date: Sep 2015
Location: USA
Posts: 33
Received 0 Votes on 0 Posts
Planning a ceiling fan in each room. We will be using CFLs for light.
 
  #6  
Old 09-13-15, 10:43 AM
PJmax's Avatar
Group Moderator
Join Date: Oct 2012
Location: Northern NJ - USA
Posts: 57,042
Received 835 Votes on 782 Posts
That all can be on one circuit.

Ceiling fan with CFL light +/- 60 watts
exhaust fans +/- 100 watts
 
  #7  
Old 09-13-15, 12:26 PM
Tolyn Ironhand's Avatar
Group Moderator
Join Date: Nov 2007
Location: Twin Cities, MN
Posts: 13,415
Received 151 Votes on 135 Posts
I know that outlets should be on 12 gauge and lights are 14.
Not true. Receptacle circuits are commonly run on #14 and 15 amp circuits.
 
  #8  
Old 09-13-15, 01:09 PM
pcboss's Avatar
Forum Topic Moderator
Join Date: Jul 2002
Location: Maryland
Posts: 15,114
Received 69 Votes on 59 Posts
I think a 20 amp receptacle circuit for each bedroom is way more than you need. Most bedrooms have some lamps, alarm clocks and maybe a tv.
 
  #9  
Old 09-13-15, 05:24 PM
S
Member
Thread Starter
Join Date: Sep 2015
Location: USA
Posts: 33
Received 0 Votes on 0 Posts
How many/amp size circuits would you recommend?
 
  #10  
Old 09-14-15, 06:57 AM
I
Forum Topic Moderator
Join Date: Feb 2005
Location: Near Lansing, Michigan
Posts: 10,944
Received 42 Votes on 40 Posts
Code recommends general-purpose circuits supply 3W / sq ft minimum. Therefore one 2400W (20A) circuit could supply receptacles for up to 800 sq. ft. of general living space. The two reasons you would want dedicated circuits to each bedroom would be if you use window air conditioners or space heaters.
 
Reply
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


Thread Tools
Search this Thread
 
Ask a Question
Question Title:
Description:
Your question will be posted in: