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Because if the wire is "hot", that is, has electricity flowing through it, and you touch a bare wire, then YOU become the "ground" and complete the circuit. This will cause at the least a bad shock, and at the worst it will cause death. The "ground" wires are bare, but that is because they do not have electricity flowing through them unless something shorts out (ie a "hot" wire which is normally black or red in color touches a ground or neutral wire which is normally white. The "ground" wires are either bare or have a green coating.
Wiki User
∙ 14y ago
Wiki User
∙ 7y agoWire without insulation is only supposed to be used for grounding purposes. It is the same as wire with green insulation. but is easier to connect to multiple outlets as it does not need stripping.
Wiki User
∙ 6y agoThe uninsulated (or green insulated) wire is the safety ground wire.
Wiki User
∙ 9y agoCopper wire is often used uninsulated for earth wires, and overhead cable are also usually uninsulated although aluminium is more common in those.
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What damage can heat cause to copper wires and its insulation?
Sufficient heat can melt the plastic insulation surrounding copper wiring, and can also cause the wire itself to oxidize or become brittle. Any of these situations causes an unsafe, and even dangerous, condition in the wiring.
Is copper in electrical wiring number one copper?
No, number one copper is used in buss bars. "Number one copper" is a term I am familiar with from recycling copper. It does indeed include buss bars, but also includes any solid wire whose insulation has been removed, or large gauge wire with large strands (as opposed to small gauge stranded wire) whose insulation has been removed. -- Sparkfighter
What is it called when a wire is coated in plastic to surround the wire are called?
Insulation
Size wire is needed to run a 125 amp panel?
In this state it is illegal for a non-electrician to do house wiring. Still it is done! The stores that sell the wiring supplies usually sell little booklets on house wiring. There are also books on wiring codes. Last time I looked, they were less than ten dollars. One guy saved a few dollars and burned down his house. Get a copy of one of those books.
What goes up first in new construction wiring or insulation?
Wiring. Insulation is placed over and around it; if it was placed first, it would make the electrician's job unnecessarily difficult.
What are the advantages of PVC Coated Copper Tubes?
PVC Coated Copper Tubes prevent corrosion and provide insulation, making them suitable for plumbing and HVAC.
How do PVC Coated Copper Tubes benefit plumbing and HVAC systems?
PVC Coated Copper Tubes provide corrosion protection and insulation, enhancing longevity and efficiency in plumbing and HVAC systems.
What damage can heat cause to copper wires and its insulation?
Sufficient heat can melt the plastic insulation surrounding copper wiring, and can also cause the wire itself to oxidize or become brittle. Any of these situations causes an unsafe, and even dangerous, condition in the wiring.
What is the price paid for copper wiring in san Jose?
depends on the size, type of insulation, quantity purchased?
What is the advantage of using insulated copper wires in wiring circuits?
Copper is : a good conductor, easy to work, and relatively cheap. And you use the insulation to help avoid shorts.
Are pipes coated before insulation?
No.
What is able to be stretched into wire?
There are several metals able to be stretched into wire. In electrical wiring, copper or copper coated aluminium is commonly used. Steel is also able to be stretched into wire.
Is there an oven available to melt insulation off of copper wire?
Well insulation has a higher heat tolerance than copper. So melting it would DEFINITELY NOT be the way to go. If you can, snip a piece off and slip the rubber insulation off. If you can't, get a professional. wiring is not something you should play around with. and melting is definitely worse.
Is copper in electrical wiring number one copper?
No, number one copper is used in buss bars. "Number one copper" is a term I am familiar with from recycling copper. It does indeed include buss bars, but also includes any solid wire whose insulation has been removed, or large gauge wire with large strands (as opposed to small gauge stranded wire) whose insulation has been removed. -- Sparkfighter
Is penny copper?
modern pennys are only copper coated
What is tinned copper wire?
copper wire that is coated with tin
What are the three use of copper?
Copper coins (though are more an alloy than pure copper nowadays), copper pipes in plumbing, copper plus tin and other metals to produce bronze. There is also the copper used to produce electrical wiring. There is even aluminium wires clad (coated) in a thin layer of copper for electrical use. The list could go on...!
