Electrical Repair Questions? Ask an Electrician for Answers ASAP
hi this is john and will try and help you
is the box metal
I'll check right now
ok if you look into the back of the box there will be a threaded hole for a ground screw to be used
the easiest way to do this is by purchasing what they call a grounding pigtail which is a piece of green ground wire that is already on the screw and all you have to do is screw it to the back of the box
then the grounds would then be attached to the mounting bracket and wire nutted together
with the ground from the fixture
I am not seeing a threaded hole in the box. My house was built in the20s.
there is a green ground wire connected to the new fixure.
what type of box is it...round, rectangle
it is semi round. the box is square with rounded corners
is there any pre drilled hole in the box
is there a screw holding a clamp that is holding the wires in the box
if the wiring is from the 20's there is a good chance it was wired with "knob and tube" wiring meaning there is no ground available to that box
there are a few holes in the box but the wires are fed through the sides of the box
are there only two wires in that box , single conductors
yes. a black and white
no signs of a bare ground any where
the wire entering the box...can you see if the shielding around the wire on the outside of the box is metal
it is not metal.
you can a least ground the fixture to the metal box using that pigtail device and then to the fixture..if there are holes in the back of the box the pigtail should self screw into the hole
if you have a tester with two leads we could test it for grounding if you like
were you speaking of the wires (shielding) that connect to the new fixture?
no the existing wire coming into the box
the shielding before it enters the metal box
OH. let me look
it has a black rubber like coating around it.
ok sometimes they used to attach the ground on the out side of the box, if you have a tester we can check real quick
there was a black and white wire to the old fixture. I don't have a tester.
Is it dangerous not to have a ground wire? Is it difficult to have it done?
its not dangerous.......however it would be a matter of running a new wire to light bow that has a ground and then to the switch
do you have a tester with two leads
no i don't
thats ok...you will be fine by doing what i said and grounding it to the box with the pigtail device
like i said home depot or loews has them and they are very economical....
so i would purchase the pigtail and connect it to the green wire existing with the new light fixure?
when you install the light....wrap the ground from the light around the ground screw on the mounting bracket and then wire nut it to the pigtail device
so it would be light to bracket to box
if you need any follow-up, you can come back to this question in the future even after you hit accept
what do I connect the pigtail device to? Do directions come with this device?
it should self tap into one of the holes in the back of the box...the device is just a green wire with a green screw on the end of it, the wire is pre-wrapped around the screw for you
OK>Since the old fixure was never grounded; can I take the groud wire off the new fixture and connect the two wires without worry?
thats up to you.........i can only tell you the way our code is written.....
The new fixture has two of the circline lamps my old one had one of the circline lamps. does this create a problem?
no, not at all
Can you tell me if it is safe to connect the black and white wires regardless of code?
connecting those wires are no problem at all....you asked how to ground the fixture to the box, what you do is up to you......personally i see no danger but i have to give you the correct answer to your question based on code thats all
thank you very much.