[HouseofPains]

I rent in a 1930's house.

I was wondering if the outlets ( a mix of 2 prong and 3 prongs all over the house) were grounded through the use of the BX grounding the outlet-boxes themselves.

Tested the 3 prong outlets with an outlet-tester, got 2 different results on 2 separate outlets: one giving me open ground (no ground existing) and the second being hot and neutral reversed. I think I can conclude outlets are not grounded.

That s why I was wondering if the boxes of the outlets were grounded through the use of BX,
And if they are then I would ground the outlets to the boxes by adding a ground wire.

Also, did they use BX back then, or different cables?

I have a fuse box, where the neutral is fused also.

Thanks

[donf]

The keyword here is "Rent". Which means you cannot add anything.

The LAHJ usually will allow homeowners to pull permits but renters cannot. Either the Landlord or a licensed electrician acting on behalf of the Landlord can pull a permit.