Yes, #2 wire can be spliced in a couple of ways. There is a device on the marked called an Insulink. The two ends of the wires are stripped about an inch in length and inserted into each end of the link. There is a special crimping tool that is used to crimp the wires into the link. You can find these types of splices in home distributions where the utility company connects to the wires that protrude from the weather head. Another type of splice for this size of wire is using #2 wire lugs on each end of the wire and then bolting the two lugs together back to back. This type of splice is used in motor connections. The splice is then half lap double wrapped with rubber amalgamation tape and then half lap double wrapped with regular electrical tape.
yes
what kind of circuit? if it's a subfeed from one panel to another same size as hot wires. if it's a straight 240 volt circuit #8. depends on what kind of circuit.
In the trade it is called a short circuit. It is a very very low resistance load that will create a very very high current flow. This is the very reason that circuits are, or should be, protected with the proper size breakers or fuses, to interrupt this fault current flow.
There is no problem using over sized wires on a breaker. It is only when the wires are undersized that the trouble begins. Oversize wire on a breaker is very common practice when overcoming voltage drop on a circuit.
The branch circuit circuit breaker or fuse protects the wire and devices that make up the circuit. If you have a 15 A breaker the wire size must be at least 14 AWG. You could have a larger wire size like 12 AWG, but not a smaller size like 18 AWG. Note as the number decrease the wire size is larger in cross sectional area. All the receptacles and switches should be rated equal to or greater than the branch protection device.
No they have different names because they are different not the same
what kind of circuit? if it's a subfeed from one panel to another same size as hot wires. if it's a straight 240 volt circuit #8. depends on what kind of circuit.
Yes, since the current is the same through out the complete circuit. the design size of the conductor entering the circuit should be the same size as the conductor leaving the circuit.
To do so LEGALLY, the circuit breaker must not be rated at a capacity (in AMPS) greater than the SMALLEST wire.
Fuse SizesThe Amperage ratings [sizing] of fuses [and circuit breakers] is determined by the SIZE of the conductors [wires] in the circuit which they serve.The size of the wires is determined by the maximum expected current [measured in Amperes (Amps) or Milliamps (mA] needed by the electrical devices "fed" by the circuit.Therefore, the answer to your question is that there are many different "size" fuses which range in Amperage from thousandths of an Amp to hundreds of Amps.
a. amperage and voltage b. the size and length of the wires c. voltage and resistance d. fuses and circuit breakers
No. Electrons are all the same size
Positively not. Never ever use a different size fuse in a circuit. The fuse is there to protect the wiring in the circuit from overheating and catching on fire.
Different wires come in cross-sections of different size.
The fuses restrict the amperage (electrical current/flow) of the circuit. The fuse is size according to wire size and load requirements. NEVER put in an over-sized fuse as it will allow to much amperage for the circuit which will cause overheating of the circuit and possible fire.
In the trade it is called a short circuit. It is a very very low resistance load that will create a very very high current flow. This is the very reason that circuits are, or should be, protected with the proper size breakers or fuses, to interrupt this fault current flow.
No. Same shape, but different size.
The word for this is "similar." The same shape and the same size is "congruent."