Within the scope of a radio, or music amplifier, your protection lies in
the limited ampacity of a 18 gauge power cord.
When neutral and hot are being discussed in terms of home or commercial
service equipment, simply keep away. There is just too much danger.
A humble range breaker might light off a 10,000 amp minor sun inside
the panel, or even the wall plug, if a current measurement goes sideways.
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BREAKER 10 KA.JPG [ 18.89 KiB | Viewed 355 times ]