Modification of Old Electrical Work

A #14 copper conductor with an insulation factor of 90 degrees C is rated 15 amps. If it is continuously loaded it has to be de rated to 80% capacity. 15 x .8 = 12 amps. You are well within the range of a #14 wire, only drawing 8.3 amps.

No, the common (neutral) and ground wires should not be connected together in the main electrical panel. The common wire is used to carry current back to the electrical panel, while the ground wire is used for safety to prevent electrical shock. They serve different purposes and should remain separate.

Yes, if properly wired a 20 amp circuit is a great circuit for an 18 amp appliance.

Properly wired means you've used 12 gauge wire or larger and the circuit is protected by a 20 amp breaker or fuse and all connections are secure.

Yes, you can have an 18 amp appliance on a 20 amp circuit. It is important to leave some room for safety margin, and a 20 amp circuit should be able to handle the 18 amp load without any issues. Make sure the wiring and circuit breaker are correctly rated for the load.

First, let me clarify the question:

You want to use a 16V, 4.5 amp power supply to operate a device that uses 16V, 1.5 amps.

That's not a problem, the larger power supply simply has the capacity of 4.5 amps, meaning that you can use anything UP TO 4.5 amps.

On the other hand...

if you want to try using a device that pulls 4.5 amps, using a 1.5 amp power supply... sorry, won't work out well. That would overheat the power supply and it would fail.

Two wire to four wire conversion is the process of converting a communication or power system that uses two wires for transmission to a system that utilizes four wires. This conversion allows for improved signal quality, increased bandwidth, and reduced crosstalk and interference in the transmission line. It is commonly used in telecommunications, networking, and audio systems.

For a 225 amp 3-phase service, typically you would use 3 sets of 3/0 AWG copper conductors or 250 kcmil aluminum conductors for the service entrance conductors. Make sure to consult the National Electrical Code (NEC) and local regulations for specific requirements.

Wires are not to be spliced or otherwise connected except in an approved electrical box. The box should be accessible, such as an electric outlet or switch box. If you decide to NOT use the box as an outlet or switch box, make certain that you use a blank cover.

Soldering wire is used for joining metal components together by melting the solder and allowing it to flow between the parts, creating a strong bond when it solidifies. It is commonly used in electronics, plumbing, jewelry making, and other metalworking applications.

Yes, there are electric ranges available that draw 30 amps or less. These ranges are typically smaller in size and have fewer cooking elements, reducing their power consumption. It's important to check the manufacturer's specifications to ensure the range meets your electrical requirements.

The size of current that a 1.5mm wire can carry depends on factors like the material of the wire, temperature, and insulation. Generally, a 1.5mm wire can typically carry around 10-15 amps of current in normal household applications. For specific projects or applications, it's important to check the wire's current-carrying capacity based on the relevant specifications and standards.

The main electric panel is where neutral is bonded to ground. There is usually a screw or strap that connects the two so the same type panel could be used as a subpanel and have the neutral and ground unbonded in subpanel.

There should be two wires in the box, black and white and possibly a bare one depending on the age of the wiring in the house. The fixture has two screws on the base. One wire goes on each screw. If there are short wires on the fixture, black to black and white to white. If there is a bare ground wire in the house box, it attaches to the body of the fixture. If there is no ground screw on the fixture, do not worry about it.

Connect the black wire to the hot wire, the white wire to the neutral wire, and the green wire to the grounding screw or terminal on the dishwasher. Make sure to follow the manufacturer's instructions and all safety guidelines. If you are unsure, it's best to contact a licensed electrician to complete the wiring.

Using the formula for resistance of a wire (R = ρ * (L/A)), we can find the resistivity ratio (ρ_aluminum / ρ_copper) as 1.7 since the total current in both wires is the same and the lengths are different. Knowing that the resistivity of copper is 1.7 times less than that of aluminum, and given that resistivity is inversely proportional to cross-sectional area, the diameter of the copper wire will be √(1.7) = 1.3 times the diameter of the aluminum wire. Since the diameter of the aluminum wire is 2mm, the diameter of the copper wire will be 2mm * 1.3 = 2.6mm.

Your breaker panel has two separate bus bars and it is certainly best to balance your load between each bus. Typically every other breaker, as you move vertically, is an alternating bus.

While you can add up the ratings on each bus to try and balance, this will not provide the best balance in that many breakers may operate at no where near their rating. The best way is to have an electrician measure the current on each bus with a clamp-on amp meter.

While this balance is ideal, it is usually only necessary if you are having a problem with the unbalanced load, like all the lights in your house dimming when the air conditioner turns on.

On your ganged 30 amp breakers, 30 amps through either will trip that breaker.

Yes, the amp rating is a measurement of the highest amp load it should carry. So a 15 amp appliance will work on a 20 amp socket but you wouldn't want to use a 20 amp appliance on a 15 amp socket.

When ever a safety switch is thrown, be it to the on position or the off position, the operator must stand to one side of the switch. It is during the act of opening or closing a switch that a fault could occur. If a dead short occurs when doing this action the whole switch could explode. If the operator is standing in front of the switch their body would take the full force of the explosion.

Generally, if the electrician did it right, the BLACK wire is HOT, and the WHITE wire is NEUTRAL. Meaning that the white wire is the center tap of the main transformer, and the black wire(s) are either leg of the 240 volt output. Since the hot to center tap only takes half of the 240, it ends up being 120 volts at your outlet.

A ground wire is used for a direct path back to the distribution panel independent of the neutral. On a split phase secondary the neutral is used by other circuits on the system and indirectly makes its way back to the distribution panel. This indirect path introduces a resistance in the neutral which could interfere with an instantaneous trip of the over current device. Using a ground wire from the grounding pin on the three blade plug allows a direct low resistance path which takes the fault current back to the distribution panel which then causes an instantaneous breaker trip due to the high current in a short circuit.

You'll need to run a NEW circuit, including a new breaker in the panel, a new wire which has been properly sized for the application and a new outlet box and plug.

If you have ANY questions about the procedure, you should contact a local electrician to perform the work for you.

A 3/0 wire with an insulation factor of 90 degrees C is rated at 210 amps. The electrical code book states that 3 - 3/0 wires can be pulled into 41 mm conduit (1-1/2"). Most mast kits utilize 53 mm (2") schedule 40 conduit.