A new standard for dimmer 3 phase plugs

[GL]

yes... that situation would definitely end in tears and possibly another coroner's inquest. Most of all, and more importantly, it is a really sad indictment to have had your warning fall on deaf ears.

another example, but a really silly one.... "sparkie" was going to get me 60amps to power up a rehearsal. What "sparkie" did was, was to hook a 20amp breaker and a 40amp breaker in line on a cable supposedly able to handle the current... unfortunately for "sparkie", he did this during my earlier "loud" days and I think his ears are still ringing.
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"No matter what age we are, some have never quite left the schoolyard"

[zordmaker]

[GL]

sadly... a local, but in reflection (and it was the late 80's), I don't think he was a sparkie.

You made an excellent point on the wall.. the line of demarcation, the "that's their thing, let them deal with it" bit.
Trick is to keep the wall at bay, as it makes it easier to view the bigger picture (and how all the different threads feed into each other) and when that happens, life becomes so much more easy.
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"No matter what age we are, some have never quite left the schoolyard"

[David Ashton]

Just try explaining to your average sparky that the neutral current can exceed the phase current and that it is impossible to balance dimmer loads, there is much rolling of eyes and no comprehension of what you are raving about."Don't worry mate, there's no neutral to this socket, so I'll just link the earth to the neutral pin, it's only a temporary job. She'll be right."

[JBoer]

[zordmaker]

[Bivio]

The term "dirty electricity" and the chopped frequencies generated by switch mode power supplies (and the myriad of electronic appliances in use) is now being referred to in studies relating to health.

Although it's still early days (as with mobile phones and risks with mercury in fluoros and arc lamps etc) standards regarding power consumption and suppy need to be reviewed to take into account how we use electricity in the real world in the 2000s and beyond.

It seems we've replaced the old fuse box but everything else is primarily stuck in first generation. Isn't there an industry brains trust for these considerations? Leaving it to a government committee or waiting for the issue to become critical, for whatever reason, doesn't usually give us the most intelligent outcome.

In the meantime there's too much mis-information and speculation. There are power filters for "dirty power" that claim to improve sound quality on a hi fi or claim health improvements when used. Facts that can be scientifically proven should form these much needed new standards.

I think Electrician trade schools would be well advised to provide a more detailed engineering component to their course. I personally don't know the specifics involved in their training but I understand it's primarily focused on Aus Standards cable size and circuit hook ups in residential and commercial buildings.

[David Ashton]

With endless millions of CFL's and switch mode supplies for MR16's and inverter air cons, there will be buggerall resistive loads on our electrical networks, I'm doing my bit to help though with my incandescent lamps.

[zordmaker]

[zordmaker]

[GL]

[David Ashton]

"in the old days, mechanical earth on the dimmers/ double coil pickups on the guitars would go to solving that.
I seem to remember something about earth loops as well..
"
In the real old days, with resistance dimmers, no problems at all with neutral currents or interference or keeping the dimmer area warm.

[GL]

keeping the dimmer area warm??
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"No matter what age we are, some have never quite left the schoolyard"

[David Ashton]

In the Isle of Mann in the winter it gets bloody cold, so running the dimmers at 30% for 1/2 an hour would warm the backstage area nicely and warm up the grease on the dimmers to make them run smoother, this is where the old pre-heating myth started.In summer one would avoid running dimmers under full to avoid turning backstage into a sweatbox.We didn't have lighting designers to stuff things up in those days.

[GL]

perhaps someone should have just lashed out and bought a heater ?
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"No matter what age we are, some have never quite left the schoolyard"