I have a home alarm installed. The output plug is 16.5 vac and 20 va. This is
connected to a low voltage wire. When I stapled the wire to the wall, there
was a super small spark. I inspected the wire there was a small mark. The red
and black tiny wires were barely exposed and when I peeled away the white
insulation to inspect, actually the insulation a looks to be intact on red and
black wires and not touching as the power was still flowing to the alarm. I
used electrical tape to cover the exposue. Is this safe?

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