|
Posted by TURTLE on August 3, 2005, 8:44 pm
> TURTLE wrote:
>>
>>>Turtle,
>>>The length of the wire is about 30 feet on the conservative side. I
>>>didn't get a chance to check the draw on the circuit though. I'll try
>>>getting that tomorrow assuming I can figure out how to do it
>>>correctly.
>>>Thanks for the help
>>>Joe
>>
>>
>> This is Turtle.
>>
>> The Ugly Book says you have up to about 50 feet or a little more for the 50
>> amp ability and 50 amp breaker. Your well under with 30 feet.
>>
>> TURTLE
>
> This is odd, could you explain that to me? I am an automotive systems
> engineer and I design the wiring for automobiles. The length of wire has
> nothing to do with the fuse rating. The device on the end of the wire also
> has nothing to do with the fuse rating.
>
> Well ok, some devices can terminate a few different sizes of wire, and this is
> a physical thing, nothing to do with current amount but with diameter, etc.
>
> So why does wire length matter for breaker size in a home?
>
> --
> Respectfully,
>
>
> CL Gilbert
>
This is Turtle.
In the World of Electricians we have a simi-rule book called a Ugly Book which
will tell use what size wire, load size, and breaker size that matches a load
and keeps the voltage drop to less than 2% of Voltage. If you have 120 volts
service. You don't want more than 2% or 2.4 volt drop caused by the wirte size
being too small for the ampcity. The fastest way to burn up a hvac system is to
run it on low voltage.
TURTLE
| 
Yahoo! 
Google 
Windows Live 
del.icio.us 
digg 
Netscape 
XML Sitemap