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1. Junior Member
Join Date
Feb 2009
Location
jupiter,florida
Posts
20

## load to much for gfci

Hello,I have two separate loads,feeding (temporaliy),from one gfci feed.20a..there is 250ft of 14/2,,and a few outdoor lights. 800w of lights.The second load is 150ft,14/2 and 300w of lights. When I plug both in,I trip the gfci,not the breaker,,I have a CLAMP METER,can I go on a hot wire for each individual load,when on,and try to determine the amp draw??thanks,each of these loads work OK by themselves.

2. ## Re: load to much for gfci

800 W plus 300 W equals 1100 W divided by 120 volts = 9.17 amps no where near 20 amps. GFCI are tripped by a difference in current flow between the "hot" and "neutral" not by excessive current. The breaker didn't trip so you are not drawing more than 20 amps. DO NOT "hot wire" , find the cause.
Jack

3. Junior Member
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Location
jupiter,florida
Posts
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## Re: load to much for gfci

U are right,I will find the cause or run new leg.My 2nd question,for a little education, is with the clamp meter..can I go on one leg(hot),at any point on the wiring and test the amp draw??when the load is lighting?thanks

4. ## Re: load to much for gfci

Originally Posted by schlo
U are right,I will find the cause or run new leg.My 2nd question,for a little education, is with the clamp meter..can I go on one leg(hot),at any point on the wiring and test the amp draw??when the load is lighting?thanks
Yes you just need to make sure you seperate the legs.
Jack

5. Member Rank 1
Join Date
Aug 2008
Posts
109

## Re: load to much for gfci

Originally Posted by schlo
Hello,I have two separate loads,feeding (temporaliy),from one gfci feed.20a..there is 250ft of 14/2,,and a few outdoor lights. 800w of lights.The second load is 150ft,14/2 and 300w of lights. When I plug both in,I trip the gfci,not the breaker,,I have a CLAMP METER,can I go on a hot wire for each individual load,when on,and try to determine the amp draw??thanks,each of these loads work OK by themselves.
14/2 should be protected by 15 amp max, for long distances may have to increase size.

Sensors on these outdoor lights (motion/light levels) timers? Power supplies/transformers?

Suspect a wiring error or fault. Water infiltration, condensation, continuity, poor bond to ground all possibilities.

Voltage drop issues also possible.

6. ## Re: load to much for gfci

Originally Posted by Gray Watson
14/2 should be protected by 15 amp max, for long distances may have to increase size.

Sensors on these outdoor lights (motion/light levels) timers? Power supplies/transformers?

Suspect a wiring error or fault. Water infiltration, condensation, continuity, poor bond to ground all possibilities.

Voltage drop issues also possible.
Because this is a plugged in circuit it is not necessary to have 15 amp protection, however the rest of your post is valid.
Jack

7. Member Rank 1
Join Date
Aug 2008
Posts
109

## Re: load to much for gfci

Originally Posted by JLMCDANIEL
Because this is a plugged in circuit it is not necessary to have 15 amp protection, however the rest of your post is valid.
Jack
I didn't see where he said that. Figured a deadfront GFCI with two loops one 250 ft out the other 100 ft out on 14/2. Either way 14/2 shouldn't be part of a 20 amp circuit.

Unless you're saying he's throwing a cap on 14/2 and plugging it into a GFCI receptacle on one end and wiring the other end to a receptacle in a box? (which would be very bad)
Last edited by Gray Watson; 03-07-2009 at 05:40 PM.

8. ## Re: load to much for gfci

In the OP he said "When I plug both in" .
Jack

9. Member Rank 1
Join Date
Aug 2008
Posts
109

## Re: load to much for gfci

True but also said temporary and also mentioned the new leg, so I'd call that a leap in logic.

Rather depend on the author to indicate the meaning since not clear at all that was refering to a cord cap.

I suspect this is a continued effort on this other discussion about tripping GFCI, pool and yard lighting:

14 awg doesn't belong on a 20 amp circuit.

If this is the same project Schlo needs qualified on-site help. You must have EGC near pool.

Bonding pool area essential.

A Pro can check service bond and check for stray voltage from drop, pole and transformer locations.
Last edited by Gray Watson; 03-07-2009 at 05:49 PM.

10. Junior Member
Join Date
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Location
jupiter,florida
Posts
20

## Re: load to much for gfci

Thank u for all the info.OK,I misread or did not clarify the info in my orig.post about tripping gfci.The old condition that existed was very bad.I tried to do this at a reasonable cost.I realize that 12 should have been run.I'm stuck now,induldge me, as posted,my original plan was to break the circuit,using two gfci's,and then use the two different runs on the load sides,hard wired.I'm using plug ends now,(industrial 3 prong plugs on the end of the romex), only as a temp condition,pluging into the existing one gfci that's there.testing my work as I move along.As was posted,one main feed,for 2 gfci's controlled by 2 switches. if I limit the load wattage,that's on the 2 different runs,still using the 14,will that help??I have the longer run working now.all the connections are now above ground in waterproof boxes.and are more than 4 ft from water.thanks
Last edited by schlo; 03-09-2009 at 09:20 AM. Reason: add on

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