(206) 949-5683, Top Rated Plumber, Seattle
Page 2 of 2 FirstFirst 12
Results 16 to 30 of 30

Thread: Breaker Wattage Limits

  1. #16
    Electrical Contractor Jim Port's Avatar
    Join Date
    Aug 2009
    Location
    Maryland
    Posts
    156

    Default

    If you were to follow your "friends" advise there is good chance you and your kids will be living in a new house. That is after the current one gets rebuilt after the fire.

  2. #17
    DIY Senior Member BobL43's Avatar
    Join Date
    Mar 2011
    Location
    Long Island, NY
    Posts
    1,772

    Default

    my post had a little joke "PF" so as us who know, know that E*I = volt amps which does not take into consideration any power factor (PF). However, Amps is amps, and the breaker is rated in amps as all here except the original poster have said. do I need my shields up now? Yes, the formula IS P=EI (apparantly), but that's another pun not intended. Depends on the load, especially when inductances are involved, like motors with poor power factors.
    I am definitely not a pro plumber, but I am a pro crastinator

  3. #18
    Jack of all trades DonL's Avatar
    Join Date
    Mar 2011
    Location
    Houston, TX
    Posts
    3,642

    Default

    I think that maybe she was a little confused at first about Watts and Amps, But she corrected herself on here last post.

    Jim did a good job explaining it. (Way to go jadnashua)

    Most Appliances are rated around 1500 Watts Max so that they have no problem working on a 15 amp circuit.


    DonL
    Last edited by DonL; 07-27-2011 at 04:16 PM.
    Theory only works perfect in a vacuum.

    Cyber Security Protection for Windows C:\ > WWW.WinForce.Net

  4. #19
    DIY Senior Member BobL43's Avatar
    Join Date
    Mar 2011
    Location
    Long Island, NY
    Posts
    1,772

    Default

    Quote Originally Posted by DonL View Post
    I think that maybe she was a little confused at first about Watts and Amps, But she corrected herself on here last post.

    Jim did a good job explaining it. (Way to go Jim)

    Most Appliances are rated around 1500 Watts Max so that they have no problem working on a 15 amp circuit.

    DonL
    Jim who? Just kidding! at work we used to have an eastern European guy named Jim with a name so long, we all called him "Jim Who?" He changed his name to Jim Rockwell after he became a US citizen.
    I am definitely not a pro plumber, but I am a pro crastinator

  5. #20
    Jack of all trades DonL's Avatar
    Join Date
    Mar 2011
    Location
    Houston, TX
    Posts
    3,642

    Default

    Quote Originally Posted by BobL43 View Post
    Jim who? Just kidding! at work we used to have an eastern European guy named Jim with a name so long, we all called him "Jim Who?" He changed his name to Jim Rockwell after he became a US citizen.

    Sorry, I should have said jadnashua, but my mistake.

    He seems to be very good at explaining things, and the thing I like most is that he knows what he is talking about.

    jadnashua is the best.

    Sorry for the mix up.


    Have a Great Evening.


    DonL
    Last edited by DonL; 07-28-2011 at 01:56 AM.
    Theory only works perfect in a vacuum.

    Cyber Security Protection for Windows C:\ > WWW.WinForce.Net

  6. #21
    DIY Senior Member BobL43's Avatar
    Join Date
    Mar 2011
    Location
    Long Island, NY
    Posts
    1,772

    Default

    Quote Originally Posted by DonL View Post
    Sorry, I should have said jadnashua, but my mistake.

    He seems to be very good at explaining things, and the thing I like most is that he knows what he is talking about.

    Jim Port's post of putting her in fear was disappointing to me.

    jadnashua is the best.

    Sorry for the mix up.


    The Girls call me Don Juan, and I have to tell them to quit, because my girl wants to know how they know.


    Have a Great Evening.


    DonL
    I agree with you about jadnashua.

    Now about Don Juan, I don't want to know. Good for you
    I am definitely not a pro plumber, but I am a pro crastinator

  7. #22
    Moderator & Master Plumber hj's Avatar
    Join Date
    Aug 2004
    Location
    Cave Creek, Arizona
    Posts
    25,615

    Default

    Jim Port's warning was applicable to the friend's suggestion to change 15 amp breaker to 30 amps. That warning also applied to the days when people would just screw higher amperage fuses into the socket when the smaller ones kept blowing, (and if that did not do the job, a penny in the socket with the a burned out fuse to hold it in place was the ultimate solution). Sometimes a little fear is a good thing, if it does what it is supposed to.
    Licensed residential and commercial plumber

  8. #23
    Jack of all trades DonL's Avatar
    Join Date
    Mar 2011
    Location
    Houston, TX
    Posts
    3,642

    Default

    Quote Originally Posted by hj View Post
    Sometimes a little fear is a good thing, if it does what it is supposed to.
    I agree.

    It is always better to be safe than sorry.
    Theory only works perfect in a vacuum.

    Cyber Security Protection for Windows C:\ > WWW.WinForce.Net

  9. #24
    Moderator & Master Plumber hj's Avatar
    Join Date
    Aug 2004
    Location
    Cave Creek, Arizona
    Posts
    25,615

    Default

    quote; Experience tells how it really is

    Experience keeps you from making mistakes. Making mistakes gives you experience.
    Licensed residential and commercial plumber

  10. #25
    DIY Senior Member BobL43's Avatar
    Join Date
    Mar 2011
    Location
    Long Island, NY
    Posts
    1,772

    Default

    and its always better when you learn from other people's mistakes, although your own are remembered much better. if you've never made a mistake, you've never done anything
    I am definitely not a pro plumber, but I am a pro crastinator

  11. #26
    General Engineering Contractor ballvalve's Avatar
    Join Date
    Dec 2009
    Location
    northfork, california
    Posts
    3,258

    Default

    The neighbor proved himself an idiot with the 30 amp breaker.

    But life and limb would likely survive if it was a 20 amp breaker. If the runs are short. But I do not suggest it.

    We all pull 16 to 20 amps regularly through fake 16 gage chinese extension cords that are really 18 gauge without much trouble.

    Take a look a this interesting wire ampacity chart and explain.

    http://sites.google.com/site/interfa...ilable-current

  12. #27
    DIY Senior Member BobL43's Avatar
    Join Date
    Mar 2011
    Location
    Long Island, NY
    Posts
    1,772

    Default

    Quote Originally Posted by ballvalve View Post
    The neighbor proved himself an idiot with the 30 amp breaker.

    But life and limb would likely survive if it was a 20 amp breaker. If the runs are short. But I do not suggest it.

    We all pull 16 to 20 amps regularly through fake 16 gage chinese extension cords that are really 18 gauge without much trouble.

    Take a look a this interesting wire ampacity chart and explain.

    http://sites.google.com/site/interfa...ilable-current
    The difference with an extension cord is being that it is open to the air, it may be able to dissipate the heat that it generates across its length due to the voltage drop it creates. I cannot run my C&H air compressor with a cheap extension cord, as it drops enough voltage to not allow the motor to start up against a head of pressure. But, my 12 gauge cord is just fine, even at 75 feet.
    Wires in the wall may not have the ability to get rid of the heat they generate if they are overloaded. And again, some household items with motors will actually draw more than their rated current when you run them on reduced voltages, and that will make them run hotter than normal. A 4 pole motor will try to run at its (with slippage) speed of 1725 RPM against the load. Doing its job at a reduced voltage and trying to drive that load at 1725 RPM, will draw more current.
    But yes you are correct, that we all use cheap extension cords and usually have no problem. In the unlike case that one of those started smoking, you'd hopefully see it and unplug it.
    I am definitely not a pro plumber, but I am a pro crastinator

  13. #28
    Moderator & Master Plumber hj's Avatar
    Join Date
    Aug 2004
    Location
    Cave Creek, Arizona
    Posts
    25,615

    Default

    quote; We all pull 16 to 20 amps regularly through fake 16 gage chinese extension cords that are really 18 gauge without much trouble.

    You DO? If you do it for any length of time have you EVER felt the cord to see how hot it is?
    Licensed residential and commercial plumber

  14. #29
    General Engineering Contractor ballvalve's Avatar
    Join Date
    Dec 2009
    Location
    northfork, california
    Posts
    3,258

    Default

    When we lost our last true tungsten mine, Which pretty much won the second world war [high above Bishop, California]
    At the sad day of the auction I bought a few miles of 10 gauge flexible mining cable, worth probably 10,000$ today, for 600 bucks. It also included about 60 spools of 16 through 4 gauge thhw wire.

    Now THATS the way to make a extension cord. Had one in the sun and rain for 5 years and just like new.

    http://www.borders.com/online/store/...sku=1888125349
    Last edited by ballvalve; 07-30-2011 at 11:35 AM.

  15. #30
    General Engineering Contractor ballvalve's Avatar
    Join Date
    Dec 2009
    Location
    northfork, california
    Posts
    3,258

    Default

    doubled up again.
    Last edited by ballvalve; 07-29-2011 at 11:28 AM. Reason: problems with posting lately.

Similar Threads

  1. Seattle featured on "Off Limits"
    By SteveW in forum Terry's Corner
    Replies: 1
    Last Post: 05-28-2011, 10:11 AM
  2. Boiler not operating within Hi Lo limits
    By ut7351a in forum Boiler Forum
    Replies: 3
    Last Post: 12-08-2010, 01:14 PM
  3. Starting Wattage?
    By silasgreen in forum Pumps and Tanks Well Forum & Blog
    Replies: 3
    Last Post: 01-01-2010, 05:04 PM
  4. Hot water heaters-- reccomend # of elementsand wattage, install costs
    By trav in forum Plumbing Forum, Professional & DIY Advice, Tips & Tricks
    Replies: 8
    Last Post: 02-28-2007, 07:52 PM
  5. Advice on height limits of Washing Machine disposal pipe
    By barryhepburn in forum Plumbing Forum, Professional & DIY Advice, Tips & Tricks
    Replies: 4
    Last Post: 05-29-2006, 04:52 PM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •