Q:Can we use pilot wire protection to protect overhead line, and which country use this scheme ?

Pilot wire protection can be used anytime anywhere. The question is not where it is used but why, and is it required. Pilot wire protection provides better discrimination of fault location, than, say, an impedance or distance relay. If the zones are too close, pilot wire may be the only feasible solution. .

Q:I am replacing an old outlet with a GFCI and I have encountered a red wire...what is the red wire for?

There might be a three way switch on the circuit,or a red wire can indicate a second hot wire. It gets complicated very fast, however almost all homes have these red wires in them, and they serve an imporatant service. Could be a red wire is used when you come out of a switch with hot and go into another switch as neutral.

Q:I like bending paperclips to make things, does anyone know where you could buy spools of the wire paperclips are made out of.(any type of wire that is the same size and material will work)

Paper Clip Wire

Q:I have an old house with old wiring. I have no colors to go by.

By electrical code (not sure how old this code is, but I think very old) if there are 2 wires for a circuit the one with any type of marking is the neutral or negative wire. For instance, it is common for a cord to have 1 smooth wire and 1 ribbed wire (there are raised grooves that go the length of the wire), the ribbed wire is the neutral. Or in outlets the larger plug hole is the neutral. Testing the continuity to ground is the best method, but make sure to turn the breaker off before you test it, as you might break your meter if you test continuity of a hot circuit.

Q:Wiring

when connecting a wire dryer outlet to 10/2 with ground romex, where does the white/black and ground connect to on the outlet?

Q:is this a wire that like is the same as buying any other one?

8g might be a little overkill. A 10g 2 conductor wire should be sufficient for nearly any application. Here's a link with more than anyone ever needs to know about speaker wire:

Q:Hi,I'm trying to connect a Panasonic CQ RDP200-LEN car radio. Normally,there is red and yellow wire for ignition and constant,and a black wire for ground. However,this unit has 2 yellow wires,2 black wires and a red. Where do these wires go? thanks

Honest answer is to take it to a audio specialist. finding and wiring a stereo from scratch (termed hardwiring) is a hard job even for the most advanced audio specialist. This is speaking from experience. Most wires are not colour coded and you will need a amp meter to measure the current, voltage, continuity and resistance in order to find out what wire does what. One wrong wire could mean new speakers or in the worst case set fire to your car. I've have done hardwires for over 5 years, and I've seen some real mess, which quite possibly could have been avoided for a few quid but impatience and inexperience has lead to new cables, trim and other pieces which were damaged due to bad installations. Please be careful!! added 9/11/06: (Note To other answeres) Don't use Choc connections or block connectors for wiring stereos as these are open connections with exposed areas of metal if they came into contact with earthed chassis they can cause a short try using bullet style or butt connectors they are more secure and sheilded!

Q:Does lime wire add a lot of pop-ups and slow down your computer?

limewire itself does not but you should just watch what you download. In general audio files wont do anything bad, movies might, and programs are very bad especially if they are .zip. I use ARES because it is much more safer. The files people get are automatically uploaded from their computer if the file is in the ARES folder meaning the programs are put on without anyone's consent and no one can put a virus on it because they would be screwing up their own computer. But don't worry to make sure what others are downloading from your computer on ARES. Right click any file and click locate file. And the folder that it shows is what anyone can download.

Q:HiI want to cover a large section of a wall at home with wire. There is a plug socket (electrical outlet) in the wall. How can I ensure that I do not drill into electrical wiring within the wall? Is there some way to scan a wall to locate the wires?Thanks.

If the house is newer construction, it should have nail guards over the wire to prevent you from nailing into the wires. But that's should have guards. There are devices that you can use to sniff out wires inside the wall. Prices vary. Depending on how long the nails/ staples are that you are using, you should be ok just putting them in where ever, most of the wiring is pulled through the center of the studs, that gives you a nearly an inch on either side of where the wire is pulled through, if its in a 2X4 wall.

Q:I have a set of two rotating beacon lights on my truck. I would like to wire these directly to the vehicle with an on/off switch. I picked up a two prong toggle switch from autozone, as well as some wire. I'm not sure how I need to do the wiring. I read somewhere about running wire from the fuse box? And how about grounding?

Truck Beacon Lights