The Electrical Contractor Network

ECN Electrical Forum
Discussion Forums for Electricians, Inspectors and Related Professionals

Books, Tools and Test Equipment for Electrical and Construction Trades

Register Now!

Register Now!

We want your input!

Featured:
   

2017 NEC and Related
2017 NEC
Now Available!

   
Recent Posts
Forum Software Upgrade coming soon...
by Webmaster
01/18/17 12:03 AM
Re: Fabricating Guards out of Lexan?
by frank
01/17/17 04:11 PM
Would ELV branch circuits be a good idea?
by gfretwell
01/17/17 01:26 PM
Why cables look like they do
by Texas_Ranger
01/17/17 12:33 PM
100% breakers?
by Texas_Ranger
01/16/17 06:13 AM
New in the Gallery:
Desk-mounted "power-board"
Top Posters (30 Days)
Webmaster 20
HotLine1 19
gfretwell 13
ghost307 12
Trumpy 12
Who's Online
1 registered (Webmaster), 0 Guests and 73 Spiders online.
Key: Admin, Global Mod, Mod
Topic Options
Rate This Topic
#101953 - 03/24/04 07:29 AM Smallest Service Conductor Size
srinika Offline
Junior Member

Registered: 02/24/04
Posts: 9
Loc: Toronto, Ontario, Canada
Hi All!

I'm confused over the following;

In rule 6-302(4), it gives that the Service Conductor (Copper) should not be smaller than 10AWG.

In rule 8-200 (1)(b)(ii), it states that the minimum service supply current, should be 60A.

By going through the Table 2 (& even Table 1), it is clear that the ampacity of 10AWG will be 30A (or if it is in free air it is 40A)

Are these 2 rules contradict each other?

Top
2017 / 2014 NEC & Related Books and Study Guides
#101954 - 03/24/04 10:38 AM Re: Smallest Service Conductor Size
CDN_ELECTRICIAN Offline
Member

Registered: 01/22/03
Posts: 75
Loc: Concord,Ontario,Canada
6-302 covers general overhead services such as: feed to traffic light controller, flat rate hot water heater....


8-200 is minimum service size for a single dwelling.

Top


ECN Electrical Forums - sponsored by Electrical Contractor Network - Electrical and Code Related Discussion for Electrical Contractors, Electricians, Inspectors, Instructors, Engineers and other related Professionals