Using the BX shielding as your ground varies on building codes. The good thing is that if you have the shielding there and it's a home run to the box, you can ground it to the outlet on one end and the panel on the other. At a minimum consider using a GFI outlet in case this shield shorts somewhere...
No ground wire???
Recently moved to a house built in 1961. When replacing outlets found that there's no ground wire, two wires only. Boxes are steel and I think there's metal conduit in there. Is ground provided by the screws holding the outlet in the box? Effective? I would assume only if the conduit is grounded?
Have a newer box with circuit breakers and a lot of Romex coming out but not to my two audio outlets.
Any comments or opinions would be appreciated. Considering having an electrician run a new line for audio (which wouldn't hurt in any case). I would be more comfortable with a separate copper ground wire. All y audio stuff is three prong.
Have a newer box with circuit breakers and a lot of Romex coming out but not to my two audio outlets.
Any comments or opinions would be appreciated. Considering having an electrician run a new line for audio (which wouldn't hurt in any case). I would be more comfortable with a separate copper ground wire. All y audio stuff is three prong.