General > General Technical Chat
Appliance power switch in neutral line - legal in aus?
Circlotron:
The other day I bought this small 10 watt Peavey guitar amplifier. Naturally I opened it up, as you do. First thing i noticed was the AC power switch is in the neutral line, and the active goes to a fuse then straight to the power transformer. i understand the safety aspects of this, but is this even legal in Australia?
RoadRunner:
Australia is upside down. So :-DD
NiHaoMike:
What's with the "trans tube" when I don't see any tubes? Is that marketing for a FET based amplifier since FETs are basically the solid state equivalent of triodes?
JohnnyMalaria:
--- Quote from: NiHaoMike on February 16, 2021, 01:27:49 pm ---What's with the "trans tube" when I don't see any tubes? Is that marketing for a FET based amplifier since FETs are basically the solid state equivalent of triodes?
--- End quote ---
https://peavey.com/TransTube-Series
(Don't Google "trans tube" unless you want to end up in a very different place)
bjbb:
AUZ/NZS 3000 -> see 3.8.3: phase (line) is brown and neutral is blue, so your analysis is correct. Current interrupt for appliances in the neutral input can be allowed for some standards and some construction; e.g., for Class II equipment where exposed metal is not referenced to a protective earthing and the equipment does not rely on a ground bond. Otherwise, current interrupt device on neutral wire is typically disallowed unless the interrupt device is dual-pole; ie, both line and neutral are being opened.
But the puzzle is the c-tick mark. These are deprecated per the RCM marking requirements. But the ACMA has allowed manufacturers of some stuff to continue using c-tick labels until stock has been exhausted. This should not apply for your equipment because it is printed on-demand. So something does not smell good.
Once again, I implore our glorious Dave to find a local accredited regulatory engineer and do a series on corporate compliance and product conformity.
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