What happens if you oversize electrical wire?
yes, as long as it fits under the breaker lugs it is fine. Many times wire is oversized due to long distance pulls resulting in increased voltage drop. The thing you cannot do is undersize the wire for the rated breaker it is under.
Is the black hot wire positive or negative?
The positive wire, also commonly called the hot wire, will typically be black in color. It is the source of the electricity. The electrical current travels from the outlet or other power source on the positive wire, so if it is plugged in anywhere, it should be considered a live (and dangerous) wire.
Is the black wire the hot wire?
The black wire is the “hot” wire, which carries the electricity from the breaker panel into the switch or light source. The white wire is the “neutral” wire, which takes any unused electricity and current and sends them back to the breaker panel. This is to prevent the electricity from running through you!
What area of wire is better to use a wider or narrower?
First, the total length of the wires will affect the amount of resistance. The longer the wire, the more resistance that there will be. Wider wires have a greater cross-sectional area. Water will flow through a wider pipe at a higher rate than it will flow through a narrow pipe.
Why is my fuse box hot?
Excessive heat is often caused by high current through a high resistance contact. The current may be within limits. The contact may be a wire junction or it may be a bad breaker or fuse. You can usually detect it by checking the voltage drop across suspected connections.
Does thicker wire carry current?
The larger diameter of the bigger wire offers more area for electrons to move through the circuit. For this reason, smaller gauge wire is rated for lower amperage (electric current) limits than larger gauge wire. The smallest size of common household wire can carry 15 amps of current.
Does thick wire consume more electricity?
The thick wire has more cross-sectional area than the cross-sectional area of the thin wire for the same length and resistivity of the conductor. Therefore, the resistance of the thick wire is less than the resistance of the thin wire. The more the resistance, the more the power consumption.
How to replace the fuse box above the battery?
Replace the box. Get a 49″ #4 battery cable from parts supply house. The wire will have eyelets on each end. Use one eyelet and remove the other. Replace the missing end with one with a smaller hole; I found one at tractor supply. Next remove part of the stock so the end will fit the new fuse box.
What causes the fuse box above the battery to overheat?
It tends to get a break in the wire near the fuse box that then arcs and overheats; this is not a problem with a short otherwise the fuse would blow, this is an arc. I have a 2005 Golf MKIV and it did this also. Lost a/c, fans, overheated. The B+ wire from the alternator to the battery appears to be too small a gauge.
Why is my wife’s a / C fuse not tight fitting?
The B+ wire from the alternator to the battery appears to be too small a gauge. I went to a larger gauge wire and replaced the fuse block on top of the battery. It also appears that the contacts for the three green fuses are not to tight fitting. My wife’s a/c went out again last week.
What’s the wire between the alternator and the fuse box?
Replace the wire between the alternator and the fuse box. It’s called the alternator harness, but I haven’t found it for sale online. It is just a simple (large) wire with two ring connectors crimped on the ends.