Other Everything else not covered in the main topics goes here. Please avoid brand and flame wars. Don't try and up your post count. It won't work in here.

Household Electrical Question

Thread Tools
 
Search this Thread
 
Old Apr 12, 2016 | 11:47 AM
  #1  
Chrisreyn's Avatar
Thread Starter
DTR's Night Watchman & Poet Laureate
 
Joined: Jun 2004
Posts: 2,156
Likes: 1
From: Lyndon KS
Household Electrical Question

Ok, this is for any professional electricians we have around here...
I'm installing three new appliances in our kitchen, DW, disposal and over the range microwave. The house hasn't had these in the past so I've upgraded tge service panel to accommodate the new circuits and am pulling wire this weekend
Question is :
20 amp dedicated circuit 12-2 with ground for microwave
Sound good?
Disposal and DW sharing a 12-2 line on a 15 amp circuit..
This one I'm unsure of.
Gas range's electrical needs will share the countertop outlets 15 amp circuit
Refrigerator is using existing 15 amp circuit shared with single ceiling light
Anyone see potential issues there?
It would simplify things if the stove and microwave shared a circuit
Reply
Old Apr 12, 2016 | 12:21 PM
  #2  
j_martin's Avatar
Registered User
 
Joined: Nov 2011
Posts: 4,479
Likes: 211
From: Isanti, MN
Stove would draw an amp for lights and clocks unless it has some kind of a freaky electric self cleaning deal in it, which I doubt. Wouldn't be a problem sharing with the microwave.

(edit) Are you sure the dishwasher is only needs 15 amps at 120 volts. Might have a heater in it. I think I would split up the DW and disposal anyway.

I usually wire 20A, 240V, (split at the devices) to quad outlets, one leg for each duplex set for counter top. Most counter top appliances draw a lot of juice. Wire would be 12/3 w ground.
Reply
Old Apr 13, 2016 | 08:03 AM
  #3  
Chrisreyn's Avatar
Thread Starter
DTR's Night Watchman & Poet Laureate
 
Joined: Jun 2004
Posts: 2,156
Likes: 1
From: Lyndon KS
Originally Posted by j_martin
Stove would draw an amp for lights and clocks unless it has some kind of a freaky electric self cleaning deal in it, which I doubt. Wouldn't be a problem sharing with the microwave.

(edit) Are you sure the dishwasher is only needs 15 amps at 120 volts. Might have a heater in it. I think I would split up the DW and disposal anyway.

I usually wire 20A, 240V, (split at the devices) to quad outlets, one leg for each duplex set for counter top. Most counter top appliances draw a lot of juice. Wire would be 12/3 w ground.
The install manual for the stove says 15 amp so I didn't think putting it on the 20 with the MW would bean issue but wanted a second opinion

DW manual says 120 at 15.? Haven't bought the disposal yet
They just finished stripping the walls and it looks like the previous counter top outlets are all on one 30 amp circuit but since it worked so far,
Don't think I'm gonna change them following the
If it ain't broke philosophy
Reply
Old Apr 13, 2016 | 10:10 AM
  #4  
ssandlin's Avatar
Registered User
 
Joined: Apr 2006
Posts: 743
Likes: 1
From: Del Rio, TX
Amperage should not exceed 80% of the circuit breaker rating. If amperage is not known use Ohm's Law to calculate, operating watts divided by voltage = amperage.
Reply
Old Apr 14, 2016 | 12:41 PM
  #5  
j_martin's Avatar
Registered User
 
Joined: Nov 2011
Posts: 4,479
Likes: 211
From: Isanti, MN
Originally Posted by Chrisreyn
The install manual for the stove says 15 amp so I didn't think putting it on the 20 with the MW would bean issue but wanted a second opinion
15 amp is the circuit expected. I suspect actual draw will be about 1 amp.

Originally Posted by Chrisreyn
DW manual says 120 at 15.? Haven't bought the disposal yet
You need 2 separate circuits.


Originally Posted by Chrisreyn
They just finished stripping the walls and it looks like the previous counter top outlets are all on one 30 amp circuit but since it worked so far,
Don't think I'm gonna change them following the
If it ain't broke philosophy
Maximum fusing to a standard 120v outlet is 20 amps. Wiring such a circuit with a 30 amp breaker is a fire waiting to happen.

Like I said, modern adequate kitchen wiring is several 20 amp circuits. The easiest way to do that with minimum materials is as I described.

As long as you're tearing the place all apart, why not spend an extra $50 and do it right.
Reply
Old Apr 18, 2016 | 11:52 AM
  #6  
Chrisreyn's Avatar
Thread Starter
DTR's Night Watchman & Poet Laureate
 
Joined: Jun 2004
Posts: 2,156
Likes: 1
From: Lyndon KS
Ok, so here's what I've run:
Circuit A: existing **** and tube, 15 amp breaker
One duplex countertop outlet and light over the sink-outlet is located where it won't be used often
Circuit B
12-2 nmb w/ground 20 amp breaker- disposal
Circuit C
12-2 w/ground, 20 amp breaker
4 countertop outlets, one is duplex, and fridge, first outlet inline is GFCI
Circuit D
12-2 w/ground 20 amp
Stove and MW
Curcuit E
Existing **** and tube 20 amp to pantry countertop outlet then 12-2 to pantry ceiling light and kitchen ceiling light with switch legs off each light
Circuit F not yet run
14-2 w/ground 15 amp
Dishwasher( will be run during installation
Sound good??
Reply
Old Apr 18, 2016 | 06:14 PM
  #7  
j_martin's Avatar
Registered User
 
Joined: Nov 2011
Posts: 4,479
Likes: 211
From: Isanti, MN
Originally Posted by Chrisreyn
Ok, so here's what I've run:
Circuit A: existing **** and tube, 15 amp breaker
One duplex countertop outlet and light over the sink-outlet is located where it won't be used often
Circuit B
12-2 nmb w/ground 20 amp breaker- disposal
Circuit C
12-2 w/ground, 20 amp breaker
4 countertop outlets, one is duplex, and fridge, first outlet inline is GFCI
Circuit D
12-2 w/ground 20 amp
Stove and MW
Curcuit E
Existing **** and tube 20 amp to pantry countertop outlet then 12-2 to pantry ceiling light and kitchen ceiling light with switch legs off each light
Circuit F not yet run
14-2 w/ground 15 amp
Dishwasher( will be run during installation
Sound good??
It'll work.
Reply
Old Apr 18, 2016 | 10:21 PM
  #8  
jrs_dodge_diesel's Avatar
Administrator
 
Joined: Nov 2003
Posts: 4,569
Likes: 40
From: League City, TX
Wow, K&T wiring!?!

How old is your house?
Reply
Old Apr 19, 2016 | 05:31 AM
  #9  
Chrisreyn's Avatar
Thread Starter
DTR's Night Watchman & Poet Laureate
 
Joined: Jun 2004
Posts: 2,156
Likes: 1
From: Lyndon KS
Originally Posted by jrs_dodge_diesel
Wow, K&T wiring!?!

How old is your house?
She was built in 1878, " The Rankin-Lowe House" on the National Historical Registry....,
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
s cesnick
Other
17
Jun 19, 2007 11:01 PM
Patrick Campbell
Other
9
May 14, 2006 08:17 PM
tool
Other
8
Feb 7, 2004 12:25 AM
Mexstan
Other
4
Sep 12, 2003 07:09 PM
White02Sport
Performance and Accessories 2nd gen only
5
Oct 6, 2002 07:11 PM




All times are GMT -5. The time now is 11:51 AM.