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chapter 9 conductor properties #94169 07/13/05 01:53 AM
Joined: Mar 2005
Posts: 236
watersparkfalls Offline OP
Member
in table 8 wire awg 18-8 have two listings for ohm/1000 ft obviously solid and stranded which brings me off topic as to why there isn't two listings for #6 since nec requires #4 or larger to be stranded.

anyway is stranded wire less resistant than solid which would make it the first listng?

thanks h2o

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Re: chapter 9 conductor properties #94170 07/13/05 07:14 PM
Joined: May 2005
Posts: 177
J
John Crighton Offline
Member
Since you haven't gotten any other replies...

Good question. The table entry for #6 shows only the stranded info, but I know for sure I can buy #6 bare solid for grounding.

You can tell solid vs. stranded by looking at the "quantity" column: 1 = solid, 7 = stranded (7 strands). In all cases, stranded wire has a slightly higher resistance per unit length than solid, so I assume the same would be true of #6.

Re: chapter 9 conductor properties #94171 07/13/05 10:12 PM
Joined: Mar 2005
Posts: 236
watersparkfalls Offline OP
Member
thanks john...
i never noticed the quantity columb b4.
nec you never stop learning....


h20

Re: chapter 9 conductor properties #94172 07/17/05 04:53 PM
Joined: May 2004
Posts: 73
R
Ralpha494 Offline
Member
When was the last time you installed 7 strand wire? Solid or 19 strand is all I've seen for 20 years.


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