How much power pull my set, because...

I don't think the NAP200 draws enough current to blow your fuses. I've had my lights dim with an old Hafler DH200 (115wpc) on LOUD bass transients, but the house fuses never blew.

Your HCs and NAP200 might buzz/humm for a few second immediately after turning on, but this shouldn't continue unless you have a really crappy, noise mains.

Keith

quote:

Originally posted by sktn77a:
I don't think the NAP200 draws enough current to blow your fuses. I've had my lights dim with an old Hafler DH200 (115wpc) on LOUD bass transients, but the house fuses never blew.

Your HCs and NAP200 might buzz/humm for a few second immediately after turning on, but this shouldn't continue unless you have a really crappy, noise mains.

Keith

It's buzzz/hummm when i'm with my ear at 10cm from it. And ideed after serveral seconds it going lesser.

The fusus didn't blow out by music but by putting on and off.

The hum will probably come and go depending on mains supply.

I wouldn't worry about the position of the PS.

16A canblow. Try waiting a minute or so between switching on each box to le thtem draw current and stabilise individually.

Cheers

Mike

For new models you can find the quiescent power consumption in the manual.

The fuse rating is to be found on the rear panel – by the IEC inlet.

Upon switch-on, currents way in excess of the fuse rating may be momentarily drawn – up to many tens of amps. This is why the fuse is slow blow – giving protection in normal use but able to ride out the occasional excesses of switch-on. This is also why the system should be fired up - one unit at a time: source, preamplifier, power amplifier.

The advice on mains includes the advice to rate trips at 30 to 45 Amps.

quote:

The fusus didn't blow out by music but by putting on and off.

Your house fuses should not blow just by switching equipment on and off. There's something wrong either with the equipment or the connections.

Keith

I think you might have connected the Hicap and NAP 200 a bad way, this is probably the source of your humming noise --> Power supply clash into the NAC 202.

And that may blow a fuse or two...

Make sure that the NAP 200 is connected to the Hicap and no longer on the NAC 202, only the Hicap should deal with the NAC 202 now.

Bye.

quote:

Originally posted by sktn77a:
Your house fuses should not blow just by switching equipment on and off. There's something wrong either with the equipment or the connections.
Keith

OR - the rating of the trips.

An inadequately rated trip will operate - depending on the point in the power cycle at which power is initially fed to the transformer.

This is NOT a fault - it is correct operation.

Simply turning on my armageddon used to blow a house trip that was correctly rated. My electrician friend looked into it and found out that there we different speed trips. the fast "blow" ones will not take the surge but slow ones will. I would look into this if I were you.

Best wishes

Gary

quote:

Originally posted by sktn77a:

quote:

The fusus didn't blow out by music but by putting on and off.

Your house fuses should not blow just by switching equipment on and off. There's something wrong either with the equipment or the connections.

Keith

Probably not the case here.

The circuit breakers used in Europe are rated for different speeds as well as different current capacities as Fozz correctly points out. When I arrived in Germany in Sep, the circuit breaker tripped on powering up my 250s. Changing from the original H16A to a 'B' type 16A sorted the problem. If the circuit cable is not rated for 30 or 45 A then your electrician may not allow you to have a higher current breaker fitted for obvious reasons. A slower acting type is then the solution..or have a new mains cable installed of higher capacity.

Robbert

It is important to be clear here. Did you blow the 16A Fuse or did you trip the circuit breaker.

If you tripped the circuit breaker and did NOT blow the fuse then the explanation given by Jo Sharp is right. I have had my circuit breakers trip on me occasionally because they intentionally have high sensitvity.

If you blew the fuse and the circuit breaker did NOT trip then you should be carefull there maybe something wrong with your naim boxes or connections as Keith suggested.

If you think you blew the fuse AND the circuit breaker tripped at the same time it may actually be that the fuse did not blow but because the circuit breaker tripped and you think the fuse has blown. You can check that fairly easily.

If you want give me a call.

regards
Geoff

What is a circuit breaker and what is trip or tripped ?

What i mean is this:



One of these groups switched of. There is an automatic fuse in it. When there is to much power called these automatic fuses plup-up.

Ik turned of the naim stuff by hand and i could start it up again. Then one by one, with a small break of 20 seconds, i turned on the naim stuff.

So no problem now at all. It was only when i turn on and off (the HC2's and NAP200) in a very. small time.

OK Robbert

The two switches in the bottom row are what I call circuit breakers which each feed a group of resettable fuses in the top row. So when you say one of the groups switched off I am guessing one of the "circuit breakers" in the bottom row flipped to the OFF position and had to be reset to ON. The rest of what you say also fits with that.

regards
Geoff

OK, i understand.

The under didn't flipped to OFF. It's 1 of the above.

What i do is put the circuit breaker to zero/OFF and reset the upper. And then pull the circuit breaker back to ON.

So the fuse that i mean is a part of a group.

Nice to know that my topic is moved

Could you sent me a mail next time, i was searching for it.

But OK, this is the right place. Is it?? Becouse i ask about the power peak of naim stuff.