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  1. #66
    Join Date
    Jan 2015
    Location
    Iowa
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    They were all Dim Light Bulbs so they got Out Screwed & Taken to the Dump !
    Your personal history?

    You are mixing grid and local utilities conditions and problems as if they are interchangeable, they are not. Nor does it mean either has an adverse effect on the other.

    You can not tell if the power you are using is from hydro, solar, natural gas, wind, geothermal, nuclear, coal, or fuel oil. You may live next door to a power plant but your power may not come from it, it just depends how your local utility distributes power. (Did you know most power from hydro is typically DC and must be converted to AC)

    Yes if you can see cause and effects thousands of miles away but that does not mean it is of any magnitude that can cause an adverse effect to you or a single customer. Generators, switch yards, substations all contain protection equipment that is there to maintain the power quality. Here's a question, did you have any damage from the Oklahoma earthquake yesterday? Why not?

    Wheeling of power is not a daily thing. It is a continuous process and happens thousands of times per day across the grid. Ill guarantee you, you local utilty manipulates power many times per day. Variation may be from generators coming on line or going off line, normal system maintenance, from lightening strikes, squirrels in transformers, car accident take out a power pole, or some knucklehead with a shovel in eastern Tennessee severing a line

    Yes, I have experienced damage from power fluctuation. I had three PTAC's fail during an ice storm & blizzard last winter. What was damaged was not the fan motor, compressor or relays/switches but the electronic ciruit card that controlled everything. But only 3 out 25 were damaged. (I get your message it was caused by the evil utility, right!) The fluctuation was not caused by the Utility or lack of adequate equipment it was weather.

    Had a guy tell me yesterday how the evil power company ruined his electric water heater and damaged his circuit breaker box because of a power surges. He claimed the damage was caused by the power company not the 2 feet of water he had in the basement because the sump pump discharge line separated and sprayed both of them.

    Yes a local utility may have one or multiple problems in various places. Yes automatic switching and reclosure devices can cause fluctuations, but at it has been pointed out most HVAC devised you are warning about can operate with power in a range without damage. Is the power supply into your house 220 or 240 VAC, what your AC need?

    Since you are the one making the claim the utility companies are the cause. I challenge you connect some testing equipment and monitor the power and offer it as evidence. You'd be the hero in a class action law suit by all the customers that had damage in east Tennessee if you can prove it

  2. Likes David Goodman liked this post
  3. #67
    Join Date
    Mar 2016
    Location
    Pahrump, NV
    Posts
    2,178
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    Quote Originally Posted by Answer-Man View Post
    Since you are the one making the claim the utility companies are the cause. I challenge you connect some testing equipment and monitor the power and offer it as evidence. You'd be the hero in a class action law suit by all the customers that had damage in east Tennessee if you can prove it
    I agree with Answer-Man. If you truly want to make a case against the power company, then you will likely need to set up several data logging power quality analyzers. One will need to be on the service entrance. You will also need devices to record the start-up and operation of other systems on the property. These should all be installed by a qualified electrician.

    There generally isn't a great risk of an arc blast when working with 230V residential service. However, electrocution is a high risk if you don't know proper safety practices.

    You may also need to have a synchronized record of lightning strikes in your area. It is possible that a local airport keeps data on lightning strikes.

    The person analyzing the data recorded will need to have the ability to determine if the power quality issues shown at the service entrance were POCO related or conditions created by your own equipment/system.

    This is definitely not a task for a homeowner to attempt on their own.
    It's an upside down world we live in.

  4. #68
    Join Date
    Mar 2013
    Location
    Billington Heights, NY
    Posts
    21,628
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    youtube has a few videos of 240 volt arc blast

  5. #69
    Join Date
    Nov 2006
    Location
    Southeastern Pa
    Posts
    32,038
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    Quote Originally Posted by Sooty View Post
    Not just Niagara Falls more than half of all power generated here is hydroelectric. Brownouts are also incredibly rare.

    Anyway the idea of power spikes or surges damaging equipment is just bizarre. All equipment is made with a +/- range for electrical needs because while the o.p is possibly retarded power does fluctuate and this is known as "power quality" (look it up) and manufacturers know it and design equipment accordingly. If you need a perfectly stable power supply because you work in a lab or whatever there is equipment you can buy to maintain it but to my knowledge nothing in the HVAC industry is that sensitive and HVAC equipment is certainly tougher than a TV or laptop which I don't see bursting into flames on a daily basis. This whole thing has the same ring of untruth as those junk emails about Obama secretly trying to sell Idaho to ISIS or Canola oil causing tumours.
    Niagara Falls was the genesis of the term "hydro," and it became a nickname for power utilities.

    From a power standpoint, it is extremely unlikely that a power utility issue is causing some sort of AC disconnect problem.
    [Avatar photo from a Florida training accident. Everyone walked away.]
    2 Tim 3:16-17

    RSES CMS, HVAC Electrical Specialist
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  7. #70
    Join Date
    Dec 2002
    Location
    in a house, Appomattox, Va.
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    must have been a lot of brownouts in the 70s, with all that aluminum wire failures?
    Col 3:23


    questions asked, answers received, ignorance abated

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