Ground Loop Isolators Messing Up Club Circuit?

[Shane]

instead of putting the ground loop isolators on your rca cables, why not put one on your power cable? Or you can just lift the ground on the power.. Apple laptop power supplies even have a 2 prong adapter you can use...

[K.T.I.T.]

instead of putting the ground loop isolators on your rca cables, why not put one on your power cable? Or you can just lift the ground on the power.. Apple laptop power supplies even have a 2 prong adapter you can use...

Yeah, I noticed Apple notebooks don't have that issue and an isolator for the power supply would probably the best solution but I couldn't find anything like that.

[zimfella]

There is also a much simpler (and cheap) way of isolating your laptops mains power supply.

To save you using 4 isolators, simply make up a short extension cable using 2 core cable (no earth) and plug your laptop into the extension, and the extension into the mains.

is this safe?

[jinx]

is this safe?

no, if the laptop power supply has 3 pins it could have a metal casing. if a malfunction is happening and the casing is under voltage the ground pin prevents current flow when touching it by pulling the case onto earth potential.
the easiest thing to do would be buying a power supply with 2 pins, these are most likely made out of plastic and not conducting.

but no way ground loop isolators can cause fuses to blow, it's most likely the current draw from the fogger which interrupted the laptop or soundcard power for a very brief moment causing the freeze. that's why you should use different circuits for sound and light if possible.
the heating part is where most current is drawn, that is either after the button is pressed and new fluid needs to be heated or if the fluid has been heated but the fogger wasn't used so it needs to reheat.

[sine143]

yeah. basically, he hits the button on the fogger. It turns the heating coil on for a sec, causes the breif drop out. A little while later, the fogger turns the heating coil up to reheat and boom, audio is gone.

[Archies'bald]

no, if the laptop power supply has 3 pins it could have a metal casing. if a malfunction is happening and the casing is under voltage the ground pin prevents current flow when touching it by pulling the case onto earth potential.
the easiest thing to do would be buying a power supply with 2 pins, these are most likely made out of plastic and not conducting.

but no way ground loop isolators can cause fuses to blow, it's most likely the current draw from the fogger which interrupted the laptop or soundcard power for a very brief moment causing the freeze. that's why you should use different circuits for sound and light if possible.
the heating part is where most current is drawn, that is either after the button is pressed and new fluid needs to be heated or if the fluid has been heated but the fogger wasn't used so it needs to reheat.

I thought computers (I admit laptops may be different) relied on a certain amount of Earth Leakage to operate smoothly anyway. I suppose it could depend on your countries wiring code, but I would certainly not suggest anyone wires a 2 core supply to anything that is meant to be earthed.

We advise any company who are running more than 4 PC's on a single circuit not to protect them with an RCD because of the risk of tripping.

[midifidler]

Yup as above that is not your isolators - just a poorly wired club causing surges which is fucking with your shit, long poorly routed cables form an inductance, inductors resist change in flow of current (turn the smoke machine on or off) by producing a voltage spike in the opposite polarity, this spike can cause issues with any nearby equipment running of the same circuit.
I also highly recommend not ever removing earth from a power supply that was designed to use

[jimsimp59]

I am an electrician as well as a dj. you have two problems I would think. Problem 1 the fogger should be on a dedicated circuit I would use a 20 amp circuit for this. Your dj equipment and computer should be on a dedicated circuit also I would use a 20 amp circuit for this as well. Dont know about the wattage about your amps but i d look at that as well. Not enough power going to these and the circuit will pop. Problem 2 something in your setup. cant help you there cause i dont know your setup. Never remove an earth ground. if you have a faulty mixer or something else you will get a nasty shock. another possible problem. a bad ground. run a wire from a cold water pipe to your outlets. this problem causes interference with your sound but this is a problem with the ground of the entire building and is just a quick fix. Get an electrician and explain your setup better and you will get better help

[jinx]

I thought computers (I admit laptops may be different) relied on a certain amount of Earth Leakage to operate smoothly anyway. I suppose it could depend on your countries wiring code, but I would certainly not suggest anyone wires a 2 core supply to anything that is meant to be earthed.

We advise any company who are running more than 4 PC's on a single circuit not to protect them with an RCD because of the risk of tripping.

That's not a problem. Some laptops come with a 2-pin (without ground) power supply regularly, for example the macbook.

[K.T.I.T.]

I also highly recommend not ever removing earth from a power supply that was designed to use

Ye, that doesn't sound reasonable and I'm not going to do anything like that.

Problem 2 something in your setup. cant help you there cause i dont know your setup.

I'm on a Sony Vaio notebook using an Audio 8 DJ and several MIDI controllers. So it all runs on USB power. The soundcard's 4 channels are then connected to the club's mixer (DJM-600).