New Electrical Work

PVC is a material, Poly vinyl chloride - a type of plastic. 20 mm is a size, probably inner diameter of a cylindrical pipe. Conduit means that it's used to run something like other wires, or a thinner pipe, through.

A #6 copper conductor is rated at 65 amps. To connect to a 50 amp RV outlet you will need a four conductor #6 SOW 600 volt cabtire. The black and red wires go on terminals X and Y. The white wire goes on terminal W. The green wire goes on terminal G.

There are zero watts for 4000 amps. The formula for watts is; W = A x V, so you see a value for voltage has to be stated to give an answer.

12

In North America an ordinary electrical receptacle is rated at 15 amps.

The minimum size wire that engineers spec for industrial and commercial installations is #12 and it usually is stranded not solid wire.

Yes, flex can be used on a bathroom outlet. All code regulations have to be strictly adhered to regarding distances from openings and plumbing fixtures. Bathroom circuits have to be supplied from GFCI breakers.

A 240 volt street light circuit is wired in parallel connections. In the base of the street fixture an inline fuse is connected into the circuit that goes up to the fixture to protect the lamp head.

A 350 amp service is not a standard service distribution. It jumps from a 200 to a 400 amp rated distribution equipment. The only way to obtain a 350 size service is to install 400 amp equipment and fuse it at 350 amps. The standard size home distributions in North America today are rated at 200 amps. The cost of the service differs through out the continent. Ask your local electrical contractor for an estimate on an electrical upgrade to the required service that you want.

A permit in Tucson can run up to 95 dollars depending on the size of the installation. The best way of finding out a price of the permit is to ask an electrical contractor for an estimate on the job that you want done. Ask the contractor what the cost of the permit is, as a break out price. If the contractor says that you don't need a permit then move on to another contractor. It is in your best interest to obtain a permit and get the job inspected by an inspector. That way if anything goes wrong after the installation is finished and the insurance company gets involved, you won't get blamed for an illegal wiring installation that had never been inspected.

When sizing wire, the highest amperage that the circuit may carry has to be used. In this case 80 amps will be the highest current to be applied. A #4 copper conductor with an insulation factor of 75 or 90 degrees C are both rated at 85 amps.

In North America the cable colour coding is Red and Black, usually used for the current carrying conductors. The third wire is White and it is used as the neutral on a three wire electrical circuit.

ideally "line out" on the receiver to "audio in" on the amplifier, left and right...

If there isn't a "line out" use the the "audio out" but keep the volume on the receiver relatively low to prevent overdriving the inputs on the amplifier.

No, you cannot use a 10 amp switch to open a window in a 12 volt DC system. This is because the switch would not be able to handle the current necessary to power the window motor. The amount of current required to open a window in a 12 volt DC system is typically much higher than 10 amps, and so the switch would not be able to cope with the load. In addition, the switch would not be able to sustain the current necessary to keep the window open, which could lead to the window becoming stuck in the open position. Furthermore, the switch would not be able to handle the circuit protection requirements necessary to keep the window safe. For these reasons, it is not recommended to use a 10 amp switch to open a window in a 12 volt DC system.

2x20 Watts

To answer this question a voltage needs to be stated. Wire is sized by the amount of amperage the load takes. W = Amps x Volts. Amps = 650/ volts.

Any device that uses the generator to supply its operating voltage is electrically classed as a generator load.

Yes you can but the electrical code does not require it. To use one where it is not requested to do so is just adding to the over all expense of the project.

as many times times two as there are switches. All circuit boxes should have a main disconnect according to most electric codes and the NFPA, so that the box can be serviced or replaced safely. On household breaker panels the main disconnect is located beneath the service meter.

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The answer to this question is dependant upon how many breakers are in the panel. If you use the one finger method then the hand movement will equal the amount of breakers present in the load center. If you need all of the breakers off for some reason then use the outside of your hand and you can turn off eight at a time. If it is a 32 circuit load center then using this method it would take four hand movements.

This second answer is NOT recommended for safety reasons.

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Note: It is NOT recommended to put both hands into an electrical panel, as this could complete a circuit (from loose wires, broken switches, etc.) sending an electrical charge through the heart, stopping it. As few contacts as possible with the panel is recommended, one. Therefore, switches in a panel should only be thrown one at a time for the same reason; again, refer to electrical and NFPA Codes.

it truly depends on the device that is supplied and what you mean by " too much". Generally overvotage is bad and will shorten the components life, considering it was desined and built to work in a certain range. Severe over voltage will cause almost all electronic devices will burn though very quickly. A motor windings will burn out in short order or the insulation will punch through and cause a turn to turn short. Purely resistive load will over heat and fail very quickly

There will always be voltage to the ground wire, this is normal. The reason being is that the ground wire is bonded to the neutral terminal block back at the distribution panel. If you have a voltage reading to ground at the outside fixture with the switch in the on position then you have an open return neutral wire. This wire should be traced back from the light to the distribution panel. Check ever junction box that the circuit goes through and look for a loose or open white neutral wire. Closing the circuit where you find this fault will correct the problem.

The grounding conductor of a service distribution is sized by the ampacity of the service. By just stating the wire size, this does not give this information, as many variables enter into what wires are used depending on length, ambient temperature and insulation factor to name a few.

1awg

2

Yes, as long as the different wire is of the same size or larger and has the same insulation factor as the original wire.