AADD set in!
If the house built in 1930 had AC cable and someone installed some 3 prong self-grounding receptacles would that be an issue?
Did the AC cable of that vintage have the bond strip?
Jim …
Read the guys original post again. Said ZIP about upgrade or change out. Then read my comment again.
I have been doing practice inspections and have come across some older houses (1920s to 1950s) with original wiring.
No but it wasn’t required at the time of installation either. The bonding strip was an improvement to an existing product and didn’t mean that AC cable manufactured without out it suddenly couldn’t be used as an EGC.
The 1930s house would not have come with 3 prong devices so there had been work done.
Even so if the cable armor was an EGC in 1930 then why couldn’t the receptacle be changed to a 3 prong? Same holds true for NM cable with reduced EGC’s. If the receptacle needs to be replaced must the entire circuit be rewired?
Has anyone ran into the neat trick where the house flipper/electrician adds a jumper wire from the neutral to the ground of the outlet?
We had jobs where we found that and had to give the person the bad news that they were getting shocked on their sink from the grounds and neutrals being tied together at a source other than the main service panel.
The equipment U ground was allowing a backfeed on the washing machine etc but most home inspectors miss it so I got in the habit of spot checking 4-5 outlets in different rooms especially in houses that were too old to generally have a good ground. You can also find aluminum wiring that way or in the panel.
My 2 centavos.