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I do have a receptacle tester. Both outlets are open ground. All the others are grounded.

Most if not all of the houses built before the early 60's have 2 prong outlets. Not unsafe, just less safe if a fault occurs. Most knob and tube is in houses built prior to the 20's. Don't worry, you are in no imminent danger. Would you be afraid of using a non GFCI outlet? Millions are out there. What about non arc fault? Once again millions are out there and it is current code in many places. As things evolve, they get "better" and "safer". Mostly to protect people from their own stupidity.

rjezuit wrote:Most if not all of the houses built before the early 60's have 2 prong outlets. Not unsafe, just less safe if a fault occurs. Most knob and tube is in houses built prior to the 20's. Don't worry, you are in no imminent danger. Would you be afraid of using a non GFCI outlet? Millions are out there. What about non arc fault? Once again millions are out there and it is current code in many places. As things evolve, they get "better" and "safer". Mostly to protect people from their own stupidity.

Thanks that's the answer I was looking for.

monkeywaffles wrote:I do have a receptacle tester. Both outlets are open ground. All the others are grounded.

do they make two prong receptacle testers? why would they? there is no ground so how could you have anything other than an open ground?

3b12f2 wrote:

monkeywaffles wrote:I do have a receptacle tester. Both outlets are open ground. All the others are grounded.

do they make two prong receptacle testers? why would they? there is no ground so how could you have anything other than an open ground?

2 to 3 prong plug adapters used on outlets.

3b12f2 wrote:

monkeywaffles wrote:I do have a receptacle tester. Both outlets are open ground. All the others are grounded.

do they make two prong receptacle testers? why would they? there is no ground so how could you have anything other than an open ground?

Something like this would work. And can tell you if the box is grounded when used properly:
http://www.homedepot.com/p/GE-90-300-Vo ... /203744891

It is actually legal/acceptable by the NEC code (National electrical Code) to replace a 2 prong outlet with a 3 prong BUT you must have it marked on the outlet and it must be a GFCI outlet or circuit. as ungrounded.

rjezuit wrote:Most if not all of the houses built before the early 60's have 2 prong outlets. Not unsafe, just less safe if a fault occurs. Most knob and tube is in houses built prior to the 20's. Don't worry, you are in no imminent danger. Would you be afraid of using a non GFCI outlet? Millions are out there. What about non arc fault? Once again millions are out there and it is current code in many places. As things evolve, they get "better" and "safer". Mostly to protect people from their own stupidity.

CORRECTION: What you mean is more costly. knob and tube will last forever if installed correctly, and circuits are correctly fused, and not overloaded. Jim

I have never lived in a house that was up to code never will, if I did they would just change " The CODE", what I do is make sure any changes I make are done correctly and safe.

Monkeywaffles wrote:

rjezuit wrote:Most if not all of the houses built before the early 60's have 2 prong outlets. Not unsafe, just less safe if a fault occurs. Most knob and tube is in houses built prior to the 20's. Don't worry, you are in no imminent danger. Would you be afraid of using a non GFCI outlet? Millions are out there. What about non arc fault? Once again millions are out there and it is current code in many places. As things evolve, they get "better" and "safer". Mostly to protect people from their own stupidity.

Thanks that's the answer I was looking for.

And all you do by protecting stupid people is to insure they will breed and make even people that are more stupid. Natural Selection is our friend, too bad it works so slowly. Jim

3b12f2 wrote:

monkeywaffles wrote:I do have a receptacle tester. Both outlets are open ground. All the others are grounded.

do they make two prong receptacle testers? why would they? there is no ground so how could you have anything other than an open ground?

Yes, it's called a light bulb! Jim

Guest wrote:

3b12f2 wrote:

monkeywaffles wrote:I do have a receptacle tester. Both outlets are open ground. All the others are grounded.

do they make two prong receptacle testers? why would they? there is no ground so how could you have anything other than an open ground?

2 to 3 prong plug adapters used on outlets.

exactly what i was thinking and that would explain the "open ground" as that is the 3rd connection

Goofproof, it's not the knob and tube itself that goes bad, it is the rubber insulation that degrades over decades. Leads to possible exposed wires. But not a hazard if not exposed.

Once you are knowledgable about your surroundings and how things work, you will have nothing to fear.
Fear comes from ignorance. Don't be "that guy".

rjezuit wrote:Goofproof, it's not the knob and tube itself that goes bad, it is the rubber insulation that degrades over decades. Leads to possible exposed wires. But not a hazard if not exposed.

If it's run right the wires will NEVER be installed so they can touch each other. if the insulation falls off, they should NEVER be positioned so they can touch. Jim