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Discussion Starter #1
Working on a demo job. I had been taught to tie the hot and the neutral together on the homerun to trip breaker if someone had turned it back on before I could get back and pull it out. Another guy says this could trip the main and cause the whole section to go down. Who is right?
 

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Discussion Starter #4
someonespecial said:
What? Why not disconnect it at the panel first?
We are tracing multiple ckts. Want to get into the panel one time. Pulling all cables back to the elec. room then disconnect.
 

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ampman said:
with improper coordination it could trip the main
Screwdrivers from the bus to the neutral jumper trip the main too!
 

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Tie em together. ..let some a $$ hole reset a breaker and dump the main...then walk into the panel room and throw a hammer at the jerk who is turning breakers back on.
 
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If you turn the circuit off, demo said circuit back to the homerun box. I have no problem grounding the conductor out, then take your handy dandy meter and remove the "shorted to ground" conductors from the "over current device"
 

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Working on a demo job. I had been taught to tie the hot and the neutral together on the homerun to trip breaker if someone had turned it back on before I could get back and pull it out. Another guy says this could trip the main and cause the whole section to go down. Who is right?
You could trip the main in a building doing that and cost that business millions depending on what their working on,A good example is a site I was on they used a metal halide lamp that cost $20,000 ( used to simulate direct sunlight) it is good for one start and only will last a few months before it would start loosing it's full brightness , once the lamp got shut off it would not start again and they had several spares locked up in a safe and it would take a wile to get one on order.
 

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Discussion Starter #15
CADPoint said:
You need more tools and you are scary!
Just to be clear we are using a ckt tracer and turning the ckt off before removing the devices. We are not tripping the breaker to locate it.
 

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Locknutz said:
Just to be clear we are using a ckt tracer and turning the ckt off before removing the devices. We are not tripping the breaker to locate it.
Locknutz said:
Working on a demo job. I had been taught to tie the hot and the neutral together on the homerun to trip breaker
You sure??
 

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You could trip the main in a building doing that and cost that business millions depending on what their working on,A good example is a site I was on they used a metal halide lamp that cost $20,000 ( used to simulate direct sunlight) it is good for one start and only will last a few months before it would start loosing it's full brightness , once the lamp got shut off it would not start again and they had several spares locked up in a safe and it would take a wile to get one on order.
Sounds like they should have it on a UPS.
 
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