Replacement of 2 prong to three prong recepticals

[Dennis Alwon]

when replacing the two wire receps with gfi's can you load out to other receps changed to grounded type if the e.g. is the conduit? Or do you have to change each recep with it's own gfi?

I may have misspoke here. First off if the conduit is a ground- ie, grounded back to the panel then there would be no need for the GFCI. Secondly, if the conduit is an extension of a 2 wire circuit that does not go back to the panel then you cannot use the conduit as a ground. The GFCI will not create a ground thus the conduit would still be ungrounded.

Thirdly, yes you can install a 3 wire receptacle down stream from the GFCI but it must be marked no equipment ground.

Also you cannot extend a 2 wire ungrounded circuit, IMO, unless you ground the circuit according to 250.130 (C).