A good friend has a FPE 100 amp cabinet. Obviously the breakers are
JUNK! He lacks the $ for a new service right now. He wonders if he
could replace the 100 FBE cabinet with a 200 amp new service but
install for now a 100 amp main breaker till he has the bucks to replace
the service completely.

Anything unsafe about this rather creative idea?

wrote:
A good friend has a FPE 100 amp cabinet. Obviously the breakers are
JUNK! He lacks the $ for a new service right now. He wonders if he
could replace the 100 FBE cabinet with a 200 amp new service but
install for now a 100 amp main breaker till he has the bucks to
replace the service completely.

Anything unsafe about this rather creative idea?

Why? You don't get the benefit until you get both parts so why pay for
one now and not receive any benefit until you pay for the second. Put the
money in the bank until you can do it all. It will be less labor and maybe
you can save a couple of dollars as well.

--
Joseph Meehan

Dia duit

Joe FPE panels have KNOWN BAD BREAKERS THAT OFTEN DONT TRIP They are
a serious fire hazard!

So the benefit is not having his house burn down!

besides just swapping the panel is a DIY project for a couple
neighbors. they will do it safe.

mess with the drop other than pulling the meter will cause all sorts of
troubles.

besides many around here want a permanent standby generator that will
require a new panel anyway.

this is a interim step to prevent a fire and add more breaker slots,
his panel is jammed

wrote:
Joe FPE panels have KNOWN BAD BREAKERS THAT OFTEN DONT TRIP They are
a serious fire hazard!

So the benefit is not having his house burn down!

besides just swapping the panel is a DIY project for a couple
neighbors. they will do it safe.

mess with the drop other than pulling the meter will cause all sorts of
troubles.

besides many around here want a permanent standby generator that will
require a new panel anyway.

this is a interim step to prevent a fire and add more breaker slots,
his panel is jammed


With safer breakers and a generator interlock as the objective I would
suggest that you use a 200 amp main breaker panel with a generator
interlock kit installed.

You install a 100 ampere breaker as your generator breaker but use it as
you main breaker until you can afford to upgrade the service entry
conductors. If you already have a generator you can use the panels main
breaker to connect it to the service until you can upgrade. Since the
generator has built in over current protection the size of the breaker
used to connect it through the interlock kit need only be larger than
the generators built in breakers. Since the 100 ampere breaker will
protect your existing service entry conductors from overload there is
nothing dangerous about this technique.

If you connect the existing service entry conductors to the 200 ampere
main breaker there will be a serious risk of overload and a burn down of
your service entry conductors until the fault burns clear of ground, the
supply transformer's cutout opens of the structure takes fire from the
heat of the arcing service entry conductors.
--
Tom Horne

"This alternating current stuff is just a fad. It is much too dangerous
for general use." Thomas Alva Edison

"Joseph Meehan" wrote in message
. ..
wrote:
A good friend has a FPE 100 amp cabinet. Obviously the breakers are
JUNK! He lacks the $ for a new service right now. He wonders if he
could replace the 100 FBE cabinet with a 200 amp new service but
install for now a 100 amp main breaker till he has the bucks to
replace the service completely.

Anything unsafe about this rather creative idea?

Why? You don't get the benefit until you get both parts so why pay
for
one now and not receive any benefit until you pay for the second. Put the
money in the bank until you can do it all. It will be less labor and
maybe
you can save a couple of dollars as well.


I'm *STILL* waiting.........

For the ONE time to occur where you would actually ****ing THINK before
blurting out some pathetic excuse for a response.......

You dont know ****ing ****-all about electricity and your naive answers here
border upon being extremely dangerous....you dont even understand what the
OP's proposal was, for Christ's sakes

Lay down the frickin bottle, ( if applicable )...and above all, STFU
already.

--

SVL

wrote in message
oups.com...
A good friend has a FPE 100 amp cabinet. Obviously the breakers are
JUNK! He lacks the $ for a new service right now. He wonders if he
could replace the 100 FBE cabinet with a 200 amp new service but
install for now a 100 amp main breaker till he has the bucks to replace
the service completely.

Anything unsafe about this rather creative idea?


The mains breaker only protects the buss that it's being tasked with
feeding....and so it follows that it's utility as to providing overcurrent
protection has absolutely nothing to do with the ampacity of the circuit
that it's being fed from.

IOW, your overcurrent protection likely resides at the primary transformer
connection.....

Kapish ???

--

SVL

PrecisionMechanical wrote:

wrote in message
oups.com...
A good friend has a FPE 100 amp cabinet. Obviously the breakers are
JUNK! He lacks the $ for a new service right now. He wonders if he
could replace the 100 FBE cabinet with a 200 amp new service but
install for now a 100 amp main breaker till he has the bucks to replace
the service completely.

Anything unsafe about this rather creative idea?


The mains breaker only protects the buss that it's being tasked with
feeding....and so it follows that it's utility as to providing overcurrent
protection has absolutely nothing to do with the ampacity of the circuit
that it's being fed from.

IOW, your overcurrent protection likely resides at the primary transformer
connection.....

Kapish ???

--

SVL

Partly true. The main breaker in the panel not only protects the panel
bus, it also provides a level of protection for the service drop by
disconnecting large faults from that service drop. The protection for
the drop itself is basically the fuse on the primary side of the utility
transformer which only has a chance of protecting the service drop in
the event of a dead short which might blow the fuse before the drop
melts.

Since the utility transformer is normally supplying multiple homes and
indeed the utility transformers are rated to handle a 100% overload for
24 hours without damage, it is entirely possible to overload and
incinerate the service drop without any harm to the utility transformer
or it's primary fuse.

Pete C.

"Pete C." wrote in message
...
PrecisionMechanical wrote:

wrote in message
oups.com...
A good friend has a FPE 100 amp cabinet. Obviously the breakers are
JUNK! He lacks the $ for a new service right now. He wonders if he
could replace the 100 FBE cabinet with a 200 amp new service but
install for now a 100 amp main breaker till he has the bucks to
replace
the service completely.

Anything unsafe about this rather creative idea?


The mains breaker only protects the buss that it's being tasked with
feeding....and so it follows that it's utility as to providing
overcurrent
protection has absolutely nothing to do with the ampacity of the circuit
that it's being fed from.

IOW, your overcurrent protection likely resides at the primary
transformer
connection.....

Kapish ???

--

SVL

Partly true. The main breaker in the panel not only protects the panel
bus, it also provides a level of protection for the service drop by
disconnecting large faults from that service drop. The protection for
the drop itself is basically the fuse on the primary side of the utility
transformer which only has a chance of protecting the service drop in
the event of a dead short which might blow the fuse before the drop
melts.

Since the utility transformer is normally supplying multiple homes and
indeed the utility transformers are rated to handle a 100% overload for
24 hours without damage, it is entirely possible to overload and
incinerate the service drop without any harm to the utility transformer
or it's primary fuse.



Very good.

Now, suggest read NEC 230.9....because nobody here can give out the correct
answer until the service entrance conductor size has been determined.

--

SVL

PrecisionMechanical wrote:
wrote in message
oups.com...

A good friend has a FPE 100 amp cabinet. Obviously the breakers are
JUNK! He lacks the $ for a new service right now. He wonders if he
could replace the 100 FBE cabinet with a 200 amp new service but
install for now a 100 amp main breaker till he has the bucks to replace
the service completely.

Anything unsafe about this rather creative idea?



The mains breaker only protects the buss that it's being tasked with
feeding....and so it follows that it's utility as to providing overcurrent
protection has absolutely nothing to do with the ampacity of the circuit
that it's being fed from.

IOW, your overcurrent protection likely resides at the primary transformer
connection.....

Kapish ???

--

SVL


The Over Load Protection for your service entry conductors is your main
breaker or fuses. The only fault protection for your service
drop/lateral and service entry conductors is the supply fuse for the
transformer. Given that it is sized to the entire ampacity of the
transformer a lot of damage will occur before it opens. That is why it
is so important that the load calculation be carefully done and the main
Over Current Protective Device be properly sized. If the Service
conductors are properly sized the likelihood of an overload, that will
lead to insulation breakdown, and a fault condition developing, is very
small.
--
Tom Horne

"This alternating current stuff is just a fad. It is much too dangerous
for general use." Thomas Alva Edison

wrote in message
oups.com...
A good friend has a FPE 100 amp cabinet. Obviously the breakers are
JUNK! He lacks the $ for a new service right now. He wonders if he
could replace the 100 FBE cabinet with a 200 amp new service but
install for now a 100 amp main breaker till he has the bucks to replace
the service completely.

Anything unsafe about this rather creative idea?


Absolutely nothing at all wrong here--he'll just need to have the utility
shut down power to the mains for long enough to make the panel replacement.

Though, ( IMO ) even more "creative" would be to try and finish the job in a
single shot--Bring out a new mast in order to allow the utility transfer
power to.......in essence, you've now replaced everything, but you are
temporaraliy sub-feeding the new panel until the actual utility feeder
transfer takes place...regardless, the new mast isnt ever energized from
either direction unless the 200 amp mains breaker has actually been thrown.

--

SVL

" wrote:

Anything unsafe about this rather creative idea?

It isn't un-safe, it may be un-needed. If you replace the main panel,
you can put in a sub-panel right next to it, which is fed off the main
breaker. This allows more breakers than a standard 100 amp panel can
support. (or do the same with a 200 amp).

This was the suggested way of supporting more breakers than the panel
could handle, by the village inspector, who was inspecting my panel
upgrade, when I asked about it, 100 amp in a 200 amp panel.

As other have pointed out, and I have also done, is to upgrade to
125amps, which in the case I did, only required a size bigger on the
ground wire.
--
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