Q:my old light fixture had 2 white wires (from ceiling) twisted together and connected to a screw, it also had a green wire (from ceiling)connected to it with a screw.no black wires were connected to light fixture although they are 3 wires in the ceiling taped off together.how do i test for hot wire, i got a tester that lights up.i got a new light fixture that has 3 wires, 1 wht 1blk and copper.i know the copper goes with green, white with white and black with black. so i untangled the black wires, and i connected one to new light.but now my new light doesnt turn off.so i know i by passed my switch.how do i test for hot wire....where does the hot wire go?is it possible one of the white wires is my hot wire and the other white whire my neutral....so help please, im confused and frustrated

It sounds like the old fixture may have been improperly wired. It should not have had the green wire going to one side (screw) with the white wires going to the other side of the fixture. The green wire is normally a ground, and is only connected to the housing of the fixture - it's purpose is solely for safety, in case the hot side comes in contact with the metal fixture housing (it blows the breaker by design rather than being an electrocution hazard). Typically, the hot (black) wire is switched, and the neutrals bypass the switch. Your best bet is to search online for a wiring diagram for a switched light fixture, print it out and working with your test light, find the switched hot wire by measuring from each wire to the ground wire (for convenience only - hopefully it is really grounded) with the switch set in both directions. Note the results on the diagram, and that should help you sort it out.

Q:Hi i would like to ask what is the diference between the two versions of wiring the RJ 45 connector. when I was making my first networking cable, i used the wiring according to an image that only was using/connecting four wires into the connector. the cable works and works well. Now i found plenty of other images, all of them reccomending the full /eight wires/ connecting. Do I run my network on lower Mbits/sec? what are the other four wires used for? Thanks

You should terminaqte all 8 wires even when running at 100M 10M speeds are ok using just the 4, but at 100M, while the unused pairs do not carry a signal, they do help with attenuation.

Q:1980 ford f150 300 engine i need the wiring specs for the back lights thank you for any answers

what okorder and go to the repair manual section.. Autozone has older (10 years or older) vehicle repair manuals online.. check it there as most include the wiring diagrams

Q:Which is live and which is not, there is a black wire and a blue wire?

They are both hot

Q:Okay I bought a new light for outside my home. I called the electrician, he got the wiring from the ground and we added cement so we would bolt down the light. Now i need help adding a photocontrol.

You take the black wire from the ground (line) and connect it to the black wire of the photo control. You take the white wire from the ground, (neutral) and connect it to the white wire of the photo control and the white wire of the lamp. Just make sure all whites are connected together. This assumes that the red wire of the photo control is already connected to the black wire of the lamp. There should be a bare ground wire. this should connect to a bare wire pigtail on the light fixture, or a ground screw on the lamp fixture.

Q:how do I wire the generator so it can spin 360 on the pole with out snapping the wires.... Thanks

You need some ring contacts and brushes that will be touching those rings that will be spinning while the generator does to complete a circuit without twisting wires. Make sure you get the right size rings and wire for the amount of current

Q:I just tore my old shed down, that was wired for electrical. though I never used power out there There is size 10 wiring (two wires), running from the house to where my shed was. I then bought a Tough Shed from The Home Depot and put it where my old shed was. While working on wiring my new shed for electricity, I turned power off to the entire house.I am trying to install power to the shed and I spliced the size 10 wires to size 14 (three cable, includes a ground) which I have connect to an electrical outlet in the shed, but once I turn the main power box back on, the circuit that runs power to the shed keeps tripping off. Am I missing something here?Thanks

GET A PRO,...................or atleast someone that knows enough about electricity not to make a death - trap

Q:putting new plug on wire. which wire connectswhere?

If the cord has three wires, black to the brass screw, white to the silver screw, and green to the green screw. If the cord has just black and white, ditto, except use a two-prong replacement plug, no green. If the cord is flat - no colors, just two wires side-by-side - the smooth side to the brass screw, the ribbed side to the silver screw.

Q:I noticed when looking at the wiring sticking out of the end of one of my laptop power cables (the end that enters the battery), that of the green, grey and pink cables there, the green one had snapped. However, my laptop power still works fine, so what does that green wire do exactly?? Is it dangerous to use it even with that wire snapped?

Power requires two wires, but a third wire called a ground wire is sometimes added. Usually the plug that goes into the wall has two or three prongs. If it has two prongs, no ground wire added. If it has three prongs, the ground wire is added. The ground is usually used when metal frames or cases are used. The purpose is to ground or short out the live (hot) wire should it accidentally come into contact with the metal frame, causing the circuit breaker to trip. If the ground wire was not there, it would allow a person to get shocked should they touch the metal frame.

Q:Source 115V 20A breakerI have 12/2 wire and want to wire this:GFCI 15A receptacle -to- 15A receptacle -to- 15A receptacleI have basic wiring skills, just need reassurance. Thanks.

Hi Mike, Simple circuit. You need to wire the colored wire (usually black) to the hot side of each plug first. Then install the common (usually white) to the common side of your plugs. Then wire the ground to each plug. (I would wire each plug complete as I went.) At the panel you should connect the common and the ground being careful you don't touch the power strip the breakers are installed on. Then you should install the breaker in the panel after you attach the colored (usually black) wire to it. I accept email if you want more info.