Wire fuses are just that, bare wire between two posts/fixings. They come in current ratings which relate to its diameter like 5 ampere, 10, 15, 30 etc. Its old style. The wire can run through a sleeve of what used to be asbestos or just an underlay the wire rests on. This is to help prevent/suppress fire.
Ceramic, cartridge fuses, are safer as the wire is enclosed. So the fire risk is gone. The wire runs inside a ceramic sleeve like lead in a pencil. They are more closely rated too in that the 'blow' current is closer than the open wire types and they can be made with really low current ratings, say 1/2 amperes or less.
When a fuse 'blows' people say its a faulty fuse. In fact it did its job admirably. If it did not blow some other wiring in the installation would overheat and maybe blow and cause a fire. The fuse is a definite weak part of circuits to break the current flow that would otherwise cause mischief. So its not a 'faulty fuse', its a faulty circuit.
Don't just replace a fuse - it almost for certain means there is a fault that needs finding. A fuse may melt not blow violently. This is because it is passing more current than it is designed to but not a lot more. If a fuse blows with a bang it has been subject to a very much higher current than designed to carry. Probably a short circuit.
I have known very old fuses fail, in the true sense of the word, through carrying the correct current. This is age and oxidation and maybe even by being tightened to its posts too tightly. Any electrician knows that you dont put in new fuse wire tightly.
Modern safety devices are trips that can be re-set. They can be thermal types that overheat and trigger it to switch off. A bit slow these.
There are also magnetically operated trips that work very fast indeed. The trip has probably tripped because of a fault, a short, or overload. Be prepared for it to immediately trip again when you switch it back on/re-set. Don't keep doing this - get the circuit meggered/tested.
G4CIR
Yes, the red wire is a positive wire (+) and the black wire is a negative wire (-) :D
# 6 will carry about 40 amps more than a number 12
GFI
A neutral wire provides a return path for the hot lead while an earth or "ground" wire is provided as a safety function only that is not normally intended to carry current except for the purpose of operator protection.
The correct answer is 120 volts between the hot conductor and neautral in a residential dwelling.You can have 347 volts between the neautral and hot in a commercial space.
The potential difference between the terminals of a connection wire is determined by the voltage difference applied across the wire. This voltage difference creates an electric field within the wire that causes charge carriers to move and establish a potential difference between the terminals.
An important type of winding wire
ewan ko
Yes, the red wire is a positive wire (+) and the black wire is a negative wire (-) :D
a voltage difference between two points in the wire. This creates an electric field that pushes the electrons along the wire, allowing them to flow and carry electrical current.
AWG= American wire guage SWG = standard wire guage
Somewhere, there is a loose wire, a broken wire, or a wire with the insulation scraped off. Go back to the right rear light and find your problem wire and fix it. You blow fuses rather than burn out your battery. Fuses are less expensive than batteries.
ceramic wire....
2 wire has a live wire to energise the field where as the single wire alternator self energises and does not need the powered feed.
Output of two wire transmitter in mA and Output of two three transmitter in volt
Fuse wire is designed to open under over current conditions. Just like a fuse.
they are the same metal