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Can i get a diagram of the neutral and the ground lines at the home distribution box?
Wiki User
∙ 15y ago
The only place they are tied together is at the Service Entrance panel. They must not be mixed up anywhere else, or it will defeat the safety factor the ground wire provides. IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOB
SAFELY AND COMPETENTLY
REFER THIS WORK TO QUALIFIED PROFESSIONALS. If you do this work yourself, always turn off the power at the breaker box/fuse panel BEFORE you attempt to do any work AND always use a meter or voltage indicator
to insure the circuit is, in fact, de-energized.
Wiki User
∙ 15y ago
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On a 208 120 volt 3 phase electrical system what is the color code for the wires?
208/120 is typical for the US, so these are the colors for the US: A phase: black -------------------In Canada; A phase - Red B phase: red-------------------------------------B phase - Black C phase: blue -----------------------------------C phase - Blue neutral: white -----------------------------------neutral: white ground: green or green with yellow stripe
What is the voltage-to-ground on a 4160 V delta circuit?
There should be no voltage to ground on a delta system. That is the reason that these types of systems have to have a set of grounding lights to warn when the system inadvertently grounds. A delta system is a three wire connection, no neutral. A voltage to ground is only available on a three phase four wire (star or wye) connection system. The fourth wire being a neutral which is grounded thereby giving a voltage from each leg to neutral.
When using 10-2 wire for a 3 wire dryer can the neutral wire be the uninsulated ground wire or does it have to be insulated?
You need 10-3 PLUS ground for this 220v application. The ground is the only uninsulated wire. If you did it with 10-2, I would suggest re-doing it correctly ASAP. That leaves you without a neutral and potential for supply to go through grounding wire to breaker box (or through a person to ground, causing electrocution). Clarification: you do not need three current-carrying conductors for all 220 v applications. There is no neutral in 220, so you only need two "hot" leads and a bare safety grounding wire. If the appliance (as here, a dryer) actually needs 110 in addition to 220, then yes, you need 10/3 cable, plus grounding wire. First of all the word "shield" in electricity refers to blocking magnetic flux. What you meant to say is "insulated" which means to block conductivity. When #?-2 NM w/ Ground wire is used in a 240 volt circiut, there is no neutral conductor. You're connecting the black and white wires hot and the bare wire as equipment ground in the distribution panel. On the dryer a 3 wire cord is connected with the neutral and ground terminals jumpered, so that the ground wire ran to the dryer serves as both ground and neutral. This is how dryers have been wired for many years in most of North America. Electrically this works because ground and neutral have the same electrical potential. Technically, however, it's wrong because a ground wire shouldn't be used as a normally current carrying conductor, and in the case of a dryer, the motor and control circuits are 120 volt, causing a small current flow in the ground conductor with a 3 wire supply. The real question is: Does a residential dryer require a separate neutral conductor or just a ground conductor? The same question asked differently does a residential dryer require a #10-2 or #10-3 supply cable? The answer is: If this is an existing dryer supply, a #10-2 cable with a 3 prong cord will work just as well as it has for decades, but if this is a new installation, a #10-3 cable and a 4 prong cord is required to abide with current laws.
When wiring a 120V outlet from a 240V 3 wire service can you just connect the neutral white to the middle wire of the 240 and grab a ground from another source?
The 240 transformer that delivers power to your home has a "center tap", which gives 120 VAC to each side from the center and 240 from "hot" to "hot". It sounds like you're describing it correctly. Use the center tap and one of the hot lines to give you 120VAC, and there should be a ground bar inside the breaker panel that you would use to provide ground to the plug. The neutral and ground may or may not come from the same "source", depending on what you're trying to do. If you run a 240 feeder to a subpanel in a separate building you run two hots and a neutral and you put in a separate grounding rod to connect to the ISOLATED ground in the subpanel. The neutral and ground are not allowed to be connected together in that configuration. If you're running a 120 circuit instead, you run hot, neutral and ground together from the main panel to the subpanel.
How do you find neutral line among distribution lines?
US NEC: The neutral line is the white wire. Coming from the pole, it is the ground wire.
Why does power distribution lines have neutral?
They usually do not but very often high-voltage lines have an earth wire running along the top of the support towers as a lightning protection.
Why there is no neutral conductor in power transmission lines?
Using a distribution system (e.g. 11 kV in the UK) as an example, the primary of a three-phase distribution transformer is delta-connected, which requires to be supplied by three line conductors. So a neutral conductor is superfluous.
Does a toaster use a neutral phase?
There is no such thing as a 'neutral phase'. 'Live' or 'hot' conductors are called 'lines', whereas the neutralconductor is at approximately earth (ground) potential.So, a toaster would be connected between a line and a neutral conductor.
Why neutral is not required for vacuum circuit breaker?
Air-blast circuit breakers are used to disconnect high-voltage transmission or distribution circuits in the event of a fault. One circuit breaker is required for each of the three line conductors; there is not normally a neutral conductor in high-voltage three-phase transmission/distribution lines.
What do lines represent in an electirc field diagram?
The lines in each diagram represent an electric field. The stronger the field, the close together the lines are.
What do lines represent in an electric field diagram?
The lines in each diagram represent an electric field. The stronger the field, the close together the lines are.
How do you calculate water distribution lines to different location in cities Area from overhead water tanks and Under ground water tanks.?
Sir, We are going to make Project in Water supply schemes. what are correct method for water distribution lines from existing reservoirs to different locations in cities area.
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The adjoining sheets diagram is a diagram showing the state and or county lines?
False
