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Manufacturer News / Re: The UberBUSS - quite a review!
« Last post by tmazz on May 18, 2019, 01:14:57 PM »

When I was young I worked in a music store (surprise  :lol: ) and one summer the air handlers in the mall shut down.  We got some large floor fans to circulate air.  I went to move them while they were running.  I grabbed one and went to get the other one.  As I grabbed the second one I became immediately aware that one of the plugs had been replaced without following color code with a non polarized plug.  I couldn’t let go.  My boss saw what was happening and quickly unplugged one.  I think he saved my life that night.


Which is essentially the same thing as using some kind of cheat to force a polarity change on a polarized plug.

I rest my case.
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Manufacturer News / Re: The UberBUSS - quite a review!
« Last post by tmazz on May 18, 2019, 12:47:27 PM »
For safety purposes the safety ground should be big enough to carry the full capacity if the circuit. Unless it can handle the fault current when a phase to chassis fault occurs, this wire will most probably overheat and possibly even fuse.

The National Electric code recommends on Table 250.122 that for a circuit connected to a breaker of up to 30 amps the size of the safety ground wires should be the same as the current carrying conductors for a given breaker size. So unless the gauge of your IC wire is equal to or greater than that of the power cored connecting the unit you are running  a risk by relying on the IC to provide a a safety path to ground.

And this of course assumes that the return of the IC circuit is designed to be at earth potential and it is not a floating ground circuit in which case the IC cable would not have a earth path in the first place.
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Manufacturer News / Re: The UberBUSS - quite a review!
« Last post by rollo on May 18, 2019, 10:30:45 AM »
  OK Experts. What is wrong with components ungrounded except one [ Amp] to a grounded power conditioner. Are not the components grounded through interconnect ?
  Esplain.
 



charles
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Video Equipment / Re: Power Cords and TV
« Last post by rollo on May 18, 2019, 10:26:26 AM »
  Interesting Jim. For me glare is a bad thing due to a eye surgery gone wrong. So the darkening was a blessing. Valid point for others to consider.


charles
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Bipolar System Disorders / Re: Maintenance...
« Last post by rollo on May 18, 2019, 10:23:50 AM »
  Yes Sirre Bob. Clean connections do wonders for the high frequencies. Cable management is important as well. Should not touch each other. Power cords away from signal cables.
  Have fun Jim sorry I cannot make it doing demos.


charles
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Manufacturer News / Re: The UberBUSS - quite a review!
« Last post by P.I. on May 18, 2019, 10:13:25 AM »
Yes, sirs!  Failure to follow electrical protocols is just stupid when one has no idea what is the safe way to proceed.

Two personal cases here:

When I was young I worked in a music store (surprise  :lol: ) and one summer the air handlers in the mall shut down.  We got some large floor fans to circulate air.  I went to move them while they were running.  I grabbed one and went to get the other one.  As I grabbed the second one I became immediately aware that one of the plugs had been replaced without following color code with a non polarized plug.  I couldn’t let go.  My boss saw what was happening and quickly unplugged one.  I think he saved my life that night.

I worked in implant at Philips Semiconductor until they pulled up stakes in America.  Implanters back then pulled vacuums in the -8 torr range, developed huge magnetic fields, produced ionizing radiation, ran on poisonous gasses and voltages up to 1,000,000 V.  To top this off there was the source.  An implanter is essentially a single car garage.  The source arc is the filament.  Variable voltages from about2 - 25VDC at currents up to 250A.

I was on the ERT (emergency response team) and I saw the results of a moron (rest his soul) that did not follow strict lock out/tag out (LOTO) protocols.  It is something I will never forget.
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Manufacturer News / Re: The UberBUSS - quite a review!
« Last post by Triode Pete on May 18, 2019, 06:52:54 AM »
Guys I'm sorry if I sound like I am up on a soap box here, but I spent too many years designing industrial power plants and back-up systems to not have anything but the greatest respect to dangers that electricity brings into our homes. I have seen first hand the destructive force that even a "small electrical supply  (like a 24 volt DC battery plant) can unleash when safety protocols are not followed to the letter and an installer takes even a "minor" shortcut. People today have become blind to the dangers of electricity precisely because of the safety standards that the National Electric Code put into building wiring rules and the testing standards that organizations like Underwriters Labs have forced manufacturers to build into their products.

There is a reason that building inspectors need to certify the electrical wiring before the sheetrock goes up in a new house.  And that is because contractors that try to get away with doing installations that are not up to code to save themselves a few bucks result in houses that burn to the ground.

Safety standards are only effective if they are followed 100% of the time and this includes not only when an installation is done or product is manufactured but also every time the product is used throughout its lifetime.

Everything about electricity and electrical products needs to be safety first and functionality second.

We can all put our heads in the sand and say the odds of anything going wrong are tiny and it will never happen to me, but do you want to be that guy whose wife and kids were killed in an electrical fire who says to his friends "Yeah, the family is all dead, but damn you should have heard how much bigger the soundstage was when I flipped that plug."

I know I sure don't.

Tom, you're 100% correct! I know some "Audiophools" who defeat Safety Grounds and I have no idea what the dire consequences could be...

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Manufacturer News / Re: The UberBUSS - quite a review!
« Last post by tmazz on May 18, 2019, 06:04:26 AM »
Guys I'm sorry if I sound like I am up on a soap box here, but I spent too many years designing industrial power plants and back-up systems to not have anything but the greatest respect to dangers that electricity brings into our homes. I have seen first hand the destructive force that even a "small electrical supply  (like a 24 volt DC battery plant) can unleash when safety protocols are not followed to the letter and an installer takes even a "minor" shortcut. People today have become blind to the dangers of electricity precisely because of the safety standards that the National Electric Code put into building wiring rules and the testing standards that organizations like Underwriters Labs have forced manufacturers to build into their products.

There is a reason that building inspectors need to certify the electrical wiring before the sheetrock goes up in a new house.  And that is because contractors that try to get away with doing installations that are not up to code to save themselves a few bucks result in houses that burn to the ground.

Safety standards are only effective if they are followed 100% of the time and this includes not only when an installation is done or product is manufactured but also every time the product is used throughout its lifetime.

Everything about electricity and electrical products needs to be safety first and functionality second.

We can all put our heads in the sand and say the odds of anything going wrong are tiny and it will never happen to me, but do you want to be that guy whose wife and kids were killed in an electrical fire who says to his friends "Yeah, the family is all dead, but damn you should have heard how much bigger the soundstage was when I flipped that plug."

I know I sure don't.
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Manufacturer News / Re: The UberBUSS - quite a review!
« Last post by tmazz on May 18, 2019, 05:31:30 AM »
Dave you are right and I should clarify my rant. If a particular unit come with a non polarized plug then the design is not polarity sensitive and by all means go ahead and experiment. But if the AC cord for a unit is polarized, be it with a three  prong or a wide blade plug then the designer is trying to force you to power it with a certain polarity for a reason And most often that reason is safety.

And safety should always take priority over sound quality.

The bottom line here is if a plug allows you to change its orientation with no modifications at all then it is safe to do so and have fun.

But if you have to make any changes at all to the physical changes at all to make the polarity change happen whether they be  modifications to the plug itself, adding some kind of inline adapter or doing any kid of wiring change to the connections in the power cord or the unit it is connected to, this is probably not something that you should be doing.
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Album Reviews / Re: What are you listening to right now?
« Last post by tmazz on May 17, 2019, 10:32:30 PM »
Fiedler/Boston Pops: Salute to Disney



DG CD
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