New Electrical Work

A 100 amp residential service requires a size #8 copper wire, it should be insulated in green.

A 500 MCM wire with an insulation factor of 90 degrees C is rated at 430.

Most 400 amp services will use parallel wires on each leg to feed the circuit.

A 3/0 wire with an insulation factor of 75 and 90 degrees C is rated at 200 and 225 amps respectively.

The insulation rating of these conductors will be 600 volts.

An electrical fuse is not repairable. They have to be replaced with a new one of the same value as the one that is being replaced. Years ago there were one time fuses that had replaceable links that could be changed out if the fuse blew. Safety codes have changed and now these types of fuses are no longer allowed to protect electrical circuits.

first of all you buy a double pole unit thermostat which should come with the mounting plate and thermostat and it should have 4 wires 2 red 2 black okay now you join the red to the red power wire and black to the black power wire and the 2 remaining wires which should be a red and black can be joined to the red and black wires on your heater .....now you should be good to go ............LEE48

Yes but there are two stipulations, one that the join or splice must be made in a junction box that is accessible and has a removable cover and the second stipulation is that the breaker that is supplying the power can not be larger that the smallest conductor. In this case no breaker larger that a 20 amp breaker as #12 wire is only rated at 20 amps..

Yes you do. The detached garage will either be fed with a single circuit or a sub panel. The wire feeding the garage will need to be protected and that is the purpose of the breaker (disconnect). The breaker size will be determined by the size of the wire that is used on this circuit.

A "splitter", which can be purchased at any store where electronics are sold. They are very cheap and easy to use.

Conductors by code are only allowed to be loaded up to 80 percent. In this case an over size wire set will be higher that what the wire is rated for in the code book. A 600 MCM copper conductor with an insulation factor of 90 degrees C is rated at 455 amps. Paralleled together will give an ampacity of 910 amps. After the derate the maximum amperage allowed is 728 amps. So to get the full 900 amp the wire size has to be increased to a 1000 MCM copper conductor with an insulation factor of 90 degrees C which is rated at 585 amps. Paralleled this give you an ampacity of 1170 amps. After the derate the maximum amperage allowed is 1170 x 80% = 936 amps

Where do you get electric power shower heads? The ones I have seen are the 120VAC kind and manufactured in Brasil. Their use is simple enough; you replace existing shower head with electric one; run the insulated 10 foot cable up high and out of the shower to an outlet or extension. People I've seen using them in Latin countries swear by them, as they are very useful when the weather turns cold. These devices have two wires and may not be legal in the US.

the height will depend on local building codes' requirements and also what time of outlet (ground, countertop for kitchen and bath, and ceiling such as in garage doors). Typically wall outlets are 16 inches on center from the finish floor.

For branch circuits (receptacles, lighting, etc.) you would use 14 gauge wire if the circuit breaker is rated for 15 amps. For 20 amp circuits, you would use 12 gauge wire. For built-in appliances such as stoves, ovens, dryers and air conditioners, the wire size depends on the specific appliance and must be determined on a case-by-case basis. The incoming power to the house (service entrance) likewise must be calculated for each house and depends on the service size.

Probably not, since a volume control switch is designed for extremely low current measured in fractions of a watt, while a dimmer switch is typically capable of handling several hundred watts.

Yes, you can install conduit outside the wall, and it is often done in exterior applications to protect electrical wiring from environmental exposure. When installing exterior conduit, it's important to use materials rated for outdoor use, such as PVC or rigid metal conduit, which can withstand weather conditions. Additionally, ensure that the installation complies with local electrical codes and regulations for safety and durability.

140 AMPS

AC voltage conversions are usually done with transformers.

Most commonly, a 3 phase 277/480v system is transformed to a 3 phase 120/208v system. You can, however transform to anything you like with the proper transformer. If you are trying to convert 480v single phase to 240v single phase, such as for home use, then ask for that type transformer. It would use only 2 phases of the 3 phase system. Using 2 phases is called single phase and there are reasons for this that are beyond the scope of this answer.

220v and 110v are field measurements of what is considered 240v and 120v when ordering equipment or applying code.

A #6 copper conductor with an insulation factor of 75 or 90 degrees C is rated at 65 amps.

A #8 copper conductor with an insulation factor of 75 or 90 degrees C is rated at 45 amp which is too small for a 45.5 amp load.

In North America 120 volts, in the UK and Europe 240 volts.

Notes:

1. Where multiple sets of service-entrance conductors are used as permitted

in Section 230-40, Exception No. 2, the equivalent size of the

largest service-entrance conductor shall be determined by the largest sum

of the areas of the corresponding conductors of each set.

2. Where there are no service-entrance conductors, the grounding electrode

conductor size shall be determined by the equivalent size of the

largest service-entrance conductor required for the load to be served.

1

This table also applies to the derived conductors of separately derived

ac systems.

2

See installation restrictions in Section 250-64(a).

Use a 30 amp breaker.

THere is no standard basin size. They come in a wide range of sizes. The size selected depends on the room available.

which kind of bathroom sink you want, glass sinks ? ceramic basin ?

so you won't get burned

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It serves as an electrical insulator to protect your from shock and the wires from shorting, and when placed near the ends (as a boot) it serves as a strain relief to protect the cord from pulling out of the device.

The maximum wattage that a 30 amp breaker can handle is 30 x 230 = 6900 watts. Other variables come into play and this number will decrease depending on the load, duty time, and difference in voltage fluctuation.