New Electrical Work

To answer this question the motor use should be defined. Knowing that information the right kind of protection can be installed and wiring methods defined.

Armoured cable is not rated for underground installations. You have to use a cable with a designation for direct burial or wet and damp locations.

A 3/0 aluminum conductor will limit the voltage drop to 3% or less when supplying 150 amps for 150 feet on a 240 volt system. This size will allow the conductor to be loaded to 120 amps. 150 x 80% = 120

Conductors are only allowed to be loaded to 80% or their rated capacity. If you need the full 150 amps then you would need to use a wire with a rating of 190 amps. 190 x 80% = 152 amps

A 4/0 aluminum conductor will limit the voltage drop to 3% or less when supplying 190 amps for 150 feet on a 240 volt system.

Yes, as the wire size physically becomes larger so doesits capacity to handle a larger current.

The following sizes of bus-bar will have the capacity to handle 1000 amps,

3/16 x 4", 1/4 x 3 1/2", 3/8 x 2 1/2", and 1/2 x 2".

12 ga, 20 amp.

14 ga, 15 amp.

16 ga, 10 amp.

What you term as a four wire cable is known as a three wire cable in the electrical trade. The ground wire is not counted in the cable set as it is not a current carrying conductor. Turn the power off to the circuit in question. Remove the three prong outlet from the junction box. If you see a red, black, white and bare ground then you have a three wire cable feeding the receptacle. If this is what you see and the purpose of this question is to see if it can be changed to utilize a new four blade recepticle then the answer is yes.

Brown is the "hot" wire and blue is the neutral on a UK 220 volt power system.

Not if the GFCI breaker is supplying the circuit you are wanting to put the GFCI receptacle into.

In Canada the grounding electrode requirement is for two steel 5/8" x 10' copper clad rods spaced 10 feet apart.

There are zero amps in 6600 watts. Watts are the product of amps times volts. W = A x V. To find amperage use the following equation, A = W/V, so as you can see a voltage value is needed in the equation to result in an amperage.

There is a wide variety of electric boiler ratings. This is because an electric boiler rating is based on the square foot area of the heating coils. The larger the system the more heating power will be needed.

A 10 mm squared conductor is equal to a #8 AWG.

A #8 copper conductor with an insulation factor of 75 or 90 degrees C are both rated at 45 amps.

When running CAT 5 cable the rule of thumb is 25 feet. So with that being said you need a signal booster installed ever 25 feet if you want to have full use of the internet through the cable.

The volts won't generate any heat at all. It's the amps (current) that generates the heat. The 12 AWG wire is designed with different types of insulation that can handle temperatures expected in various conditions.

If a 12 AWG wire (or any wire) is overloaded, then it becomes more like a resistor than a conductor, generating heat, increasing the resistance, increasing the current, in a thermal runaway until there is enough heat to melt the wire (assuming the overcurrent protection has not already disconnected the power).

The formula you are looking for is I = KVA x 1000/1.73 x E, I = 35 x 1000 = 35000/1.73 x 220 = 381, 35000/381 = 92 amps on the primary side.

35000/1.73 x 480 = 830, 35000/830 = 42 amps on the secondary.

Transformer conductors need to be rated at 125% so the primary will need an ampacity of 92 x 125% = 115.

A #3 copper conductor with an insulation factor of 90 degrees C is rated at 115 amps.

The secondary conductors will need an ampacity of 42 x 125% = 53 amps

A #8 copper conductor with an insulation factor of 90 degrees C is rated at 55 amps.

For new 200 amp services the conduit size should be 3 inch PVC.

If you are talking about #6 building wire, it needs to have mechanical protection. This means that it has to be run in conduit. If you are talking about #6 cable set like Romex, then it only has to have mechanically protection below a five foot elevation from the garage's finished floor. If the wall that the cable set is running in is going to be finished with drywall or plywood then that is considered protected.

A #4 copper conductor with an insulation factor of 75 or 90 degree C is rated at 110 and 115 amps respectively.

As for the distance this is a voltage drop question and a voltage needs to be stated.

To control a light with a switch, the switch has to be connected in series with the light fixture.

Not in the latest edition of the code book. It should be on a 15 amp dedicated circuit.

Changing out a meter base is a complicated job in as much as you have to know wire sizes, ampacity of wires and proper electrical workmanship. Such a project should be left to a licensed electrical contractor to take out the proper permits and call for proper inspections. By taking this route it will leave you confident that if any mishaps happen to the installation down the road your insurance company will be behind you 100%.

The labour to do a simple old to new change out, where the meter base is located on the outside of the home, will be in the neighbourhood of 5-6 hours. Using 6 hours times the charge out rate of the contractor will give you a ball park figure of what it will cost. Two hours for two people plus two hours for material gathering and travel time to your location. These hours are for replacing an old meter for a new meter using the existing conductors. Obtain three quotes from individual electrical contractors. These quotes should not cost you anything. If there is a price for the quotes look for another contractor. When you talk to the contractor make sure that the price for a permit is in his quote. If the contractor states that you will not need a permit, look for another contractor.

A down stream receptacle that is connected to the upstream GFCI will be protected. If the downstream receptacle senses a fault the upstream GFCI will trip.

YES the white wire can shock. There are a few reasons why it might:

1) the white wire is actually connected to a switch. When the installer connects the white wire from the switch to the light, the National Electric Code requires the white wire to be "hot", and to be marked to indicate that it is hot. Sometimes this doesn't happen. The problem comes later when Joe homeowner replaces the light fixture. He sees the white wire with a black mark or maybe not, and connects the white wire to all of the other white wires. When the switch is turned on, the black wire that he placed on the other side of the switch connects to the white wire and trips the breaker. When Mr. Homeowner checks it out, touching the white wire gives him a shock.

2) The white wire returns the current to the source of the circuit. When the white wire is shared with two circuits, It returns the current from both circuits to the panel. When someone (even a professional) turns off only one of the circuit breakers to these circuits, the white wire still carries the current from the second LIVE circuit. If the person is replacing a receptacle withonly one of these circuit breakersoff, he or she could touch the white wire (called an open neutral) and get a shock from the returning current from the second circuit.