ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
ShoutChat
Recent Posts
Underground phone and coax depth?
by libellis - 02/08/23 08:38 PM
Al Hildenbrand - Minneapolis - obituary
by Bill Addiss - 02/03/23 07:38 PM
Violation?
by renosteinke - 01/27/23 09:52 PM
Does NEC 551.71 (F) apply to dwellings?
by BigB - 01/20/23 10:46 AM
New in the Gallery:
Burger King crown sillyness
Burger King crown sillyness
by wa2ise, December 11
240/208 to a house
240/208 to a house
by wa2ise, October 9
Who's Online Now
1 members (Scott35), 15 guests, and 11 robots.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
Joined: Oct 2000
Posts: 2,722
Scott35 Online Happy OP
Broom Pusher and
Member
In regard to the Thread Size Feeder?, located at the NEC Forum Area, I have compiled and attached (4) Panel Schedules for example descriptions.

Basic Descriptions:

a. System = 208Y/120V 3 Phase 4 Wire,
b. Panelboard(s) are 30 Space, 200 Amp, 3 Phase 4 Wire, MLO,
c. Loads are as described in the Thread, and per each Schedule's notes.

Post #1 of 2:
Example #1 (PSCHED 1M): 30 Space Panelboard with L-L VA figured as Amperes x 208 / 2; Neutral Load from L-N Circuitry only.

and,

Example #2 (PSCHED 2M): 30 Space Panelboard with L-L VA figured as Amperes x 120; Neutral Load from L-N Circuitry only.

--Scott (EE)


Attached Images
Attached PDF document
PSCHED_1M_ECN_121229.pdf (185.58 KB, 130 downloads)
Attached PDF document
PSCHED_2M_ECN_121229.pdf (185.61 KB, 107 downloads)
Last edited by Scott35; 12/29/12 10:08 PM.

Scott " 35 " Thompson
Just Say NO To Green Eggs And Ham!
Joined: Oct 2000
Posts: 2,722
Scott35 Online Happy OP
Broom Pusher and
Member
Post #2 of 2 - examples #3 and #4:

In regard to the Thread Size Feeder?, located at the NEC Forum Area, I have compiled and attached (4) Panel Schedules for example descriptions.

Basic Descriptions:

a. System = 208Y/120V 3 Phase 4 Wire,
b. Panelboard(s) are 30 Space, 200 Amp, 3 Phase 4 Wire, MLO,
c. Loads are as described in the Thread, and per each Schedule's notes.

Post #2 of 2:
Example #3 (PSCHED 3M): 30 Space Panelboard with L-L VA figured as Amperes x 208 / 2; Neutral Load from ALL Circuits.

and,

Example #4 (PSCHED 4M): 30 Space Panelboard with L-L VA figured as Amperes x 120; Neutral Load from ALL Circuits.

--Scott (EE)

Attached Images
Attached PDF document
PSCHED_3M_ECN_121229.pdf (185.98 KB, 90 downloads)
Attached PDF document
PSCHED_4M_ECN_121229.pdf (185.97 KB, 86 downloads)

Scott " 35 " Thompson
Just Say NO To Green Eggs And Ham!

Link Copied to Clipboard
Featured:

Tools for Electricians
Tools for Electricians
 

* * * * * * *
2023 National Electrical Code (NEC)
2023 NEC Now Available!
 
* * * * * * *

2020 Master Electrician Exam Preparation Combos
2020 NEC Electrician
Exam Prep Combos:
Master / Journeyman

 

Member Spotlight
HappyElectrician
HappyElectrician
Penn USA
Posts: 31
Joined: December 2011
Top Posters(30 Days)
triple 2
Popular Topics(Views)
303,305 Are you busy
232,258 Re: Forum
217,018 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.7.5