ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
ShoutChat
Recent Posts
Do You Wrap Your Receptacles?
by gfretwell - 02/20/24 10:48 PM
Cable Chase Code Requirement
by renosteinke - 02/16/24 07:00 PM
Do we need grounding?
by gfretwell - 02/16/24 10:37 AM
Cordless Tools: The Obvious Question
by gfretwell - 02/08/24 07:28 AM
Is this really a thing
by renosteinke - 02/07/24 01:15 PM
New in the Gallery:
This is a new one
This is a new one
by timmp, September 24
Few pics I found
Few pics I found
by timmp, August 15
Who's Online Now
1 members (gfretwell), 31 guests, and 16 robots.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
Joined: Jul 2002
Posts: 6
C
CAB Offline OP
Junior Member
Can anyone suggest how the scott35 excel spreadsheet for single phase 120/240 could be modified to correctly calculate the load for a 120/208 panel? Also unsure of the use of abbreviations on the following columns: LTG, REC, MSC, BKR, LCL, BUS. Final question, would say a single phase compressor running at 208v and 24.4 amps be listed under columns A and B on the same row or on successive rows in order for the spreadsheet to correctly tabulate amperage?

Thanx in advance [Linked Image])
cb

Joined: Oct 2000
Posts: 2,723
Likes: 1
Broom Pusher and
Member
CAB,

Is this 120/208 VAC panel a 3 phase 4 wire panel? If so, try the spreadsheet for that type of panel.

If the panel is 1 phase 3 wire @ 120/208, then simply edit the cell with the voltage reference and make it "208" instead of "240".
That "Basic" version of the spreadsheet will use the new voltage value for calcs.

The abbreviations are as follows:
  • LTG = Lighting,
  • REC = Receptacles,
  • MSC = Misc.,
  • BKR = Breaker (Trip rating and number of poles),
  • LCL = Long - Continuous Loads (AKA 3 hours or more). This shows the amount of LCL added to the circuits' in the schedule,
  • BUS = Bus bar which has the listed load or identified circuit. The bus which the breaker is landed to.


When listing the Volt-Amps for L-L loads, list this in both rows / columns as necessary - list the load VA in the cells for line A and line B per circuit position
(example: L-L compressor 10.0 amps @ 208 VAC 1 phase connected to CKTs. 1/3. CKT 1 position = "Compressor" in the description cell and "1040" in the cell for "A". Do the same for CKT 3, except place the "1040" in the cell for "B")

Feel free to contact me if you need further assistance.

Scott S.E.T.

Last edited by Scott35; 01/25/20 06:37 PM.

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 + Exam Prep Study Guides Now Available!
 
* * * * * * *

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

 

Member Spotlight
sbi
sbi
indiana
Posts: 47
Joined: March 2008
Top Posters(30 Days)
maxecn 5
Admin 3
Popular Topics(Views)
317,836 Are you busy
242,667 Re: Forum
226,701 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.7.5