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Musician questions

Former Community Member
Former Community Member

Hi there, 2 questions using my Seaward Apollo 500:

1- my radio connection between guitar and amplifier has a separate PSU, so is class 3? Should I simply PAT this as class 2?

2- my bass combo amp is a pretty new Ashdown Studio 15 which does not have any class marking (apart from RoHS CE) so has to be class 1? But this device fails earth continuity and I don't believe it is manufactured to earth the exposed metal parts. Can I ignore this test? If so, for what reason?

Thank you.

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    about as much use as a lot of supposedly electrical ‘PAT’ labels.

    I suggest that looking for mechanical damage, chewed leads and signs of strain at the plug will get 90% of dangerous conditions.

    I'd not necessarily  expect the audio jacks to be directly connected to mains earth, for reasons of hum loops they may be floating or audio transformer coupled,  but the panels you can touch probably are. 

    If you have connection to some part of the case and the earth pin of the plug that is probably all the reassurance you will get in practice to treat as class I

    Mike

     

     

     

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  • 0

    about as much use as a lot of supposedly electrical ‘PAT’ labels.

    I suggest that looking for mechanical damage, chewed leads and signs of strain at the plug will get 90% of dangerous conditions.

    I'd not necessarily  expect the audio jacks to be directly connected to mains earth, for reasons of hum loops they may be floating or audio transformer coupled,  but the panels you can touch probably are. 

    If you have connection to some part of the case and the earth pin of the plug that is probably all the reassurance you will get in practice to treat as class I

    Mike

     

     

     

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