usa official voltage satandard (or range)

Reply

  #1  
Old 06-30-10, 08:36 AM
D
Member
Thread Starter
Join Date: Jun 2009
Location: usa
Posts: 109
Received 0 Votes on 0 Posts
usa official voltage satandard (or range)

i checked the voltage in several outlets with 3 different meters, one of them is professional grade fluke.....i get reading between 123 and 126.

searching the net, i find several answers: 110+/- 10%, 120+/- 10%. 110-130....

is there a power company or industry standard (nominal and tolerance or range)??

is 126 too high?

thanks
 
Sponsored Links
  #2  
Old 06-30-10, 09:06 AM
Tolyn Ironhand's Avatar
Group Moderator
Join Date: Nov 2007
Location: Twin Cities, MN
Posts: 13,499
Received 174 Votes on 156 Posts
126 volts is fine. A little on the higher side then what you normally see but within tolerances. As you have found, voltage is nominal and will vary. In your case it is 120 volts +\- 10%

The "normal" nominal voltages are 120/208/240, 277/480, 347/600. 120/240 is what you will find in a house. The rest is found in 3 phase systems.
 

Last edited by Tolyn Ironhand; 06-30-10 at 11:06 AM.
  #3  
Old 06-30-10, 09:16 AM
I
Forum Topic Moderator
Join Date: Feb 2005
Location: Near Lansing, Michigan
Posts: 10,944
Received 42 Votes on 40 Posts
Most places in the USA and Canada are 120V +/- about 10%; 126V is just fine. It will go down as the load in the house increases.
 
  #4  
Old 06-30-10, 11:26 AM
D
Member
Thread Starter
Join Date: Jun 2009
Location: usa
Posts: 109
Received 0 Votes on 0 Posts
tolyn, ibpooks, thanks for your speedy response. one less thing to worry about
 
  #5  
Old 07-01-10, 06:44 AM
D
Member
Join Date: Jul 2005
Location: Central Indiana
Posts: 192
Received 0 Votes on 0 Posts
Voltage standards are set or national standards are adopted by state utility commissions. In Indiana, the standard adopted is the national standard, ANSI C84.1. It basically says +/- 5% of nominal (120 V in your case) at the utility meter most of the time. Short duration excursions from this range are allowed. If you are so inclined, you can check with your utility to see if voltage is too high at the meter. 126 volts should not cause anything to fail.
 
Reply
Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Thread Tools
Search this Thread
 
Ask a Question
Question Title:
Description:
Your question will be posted in: