The way in which an electric Meter Is actually Wired
The way in which an electric Meter Is actually Wired
The Role of Electric Meter
Close up of electronic powered meter
fotog / Getty Images It’s rare for a homeowner to operate along the electric meter that monitors current usage in the home. This particular device, which supplies the connection point where electrical power enters the house, is formally owned by the energy provider, not the household. Thus, any wiring contacts should be managed by an experienced electrician or by a tech support out of the power company. In reality, homeowners might be forbidden to have the electrical meter in a way.
Though it is able to still be useful to recognize the functioning of the electrical meter and also the particulars of how it’s wired.
Structure of an electric powered Meter Inside a regular home electrical meter box, there’s a middle neutral bus bar and 2 hot wire connection points just for the incoming (line) along with outgoing (load) wires. There’s in addition a hookup issue for the grounding wire. These wire connection terminals are generally not apparent unless the meter mechanism is taken out of the package.
The new overhead feeder wire connections descending from the weather conditions head turn up in the meter by way of a a metallic mast, then link to the best 2 great connection points (the series contacts) via terminal lug connections. In an ordinary 100 amp service link, these wires will probably be #2 THHN. The middle post is for linking the new neutral/ground wire.
The outgoing connection factors are definitely the load connection points. This’s the percentage of the meter which feeds the primary service panel or the power disconnect. As with the series link, the load link has the 2 popular feeds and a center basic connection. There’s in addition a #6-gauge ground wire which links the neutral/ground link on the meter on the grounding rod.
How the Electric Meter Monitors Power Usage
Electric meter power
Robert Llewellyn or Getty Images The electrical meter exists so that the power company is able to check current bill and usage you accordingly. The electrical meter is often a clear, glass encased metering device resembling an over sized mason jar. Inside, the glass contains the measuring devices which include wheels and dials on the older model meters. The meter not just measures power but additionally offers a better way that the energy company is able to disconnect power from the home of yours.
Generally, you will find 5 dials which measure kilowatts along with a big rotating wheel which sits below them. This particular kind of meter may be read by the proprietor of the property that reports the results. Or perhaps, the utility company is going to read it for you, often for a fee.
Newer electric meters are electronic and are literally read from the energy company’s workplace. A signal identifying your specific meter is sent on the line from the electrical meter to the energy company.
Electric meters read electricity use in kilowatt hours. In terms that are simple, 1-kilowatt-hour = 1,000-watt-hours. The meter reads the entire energy use (in watts) of gadgets, light fixtures, and also plug in devices within the house.
Reading the Meter If your electric system demands it, the moment every month you are going to “read the meter.” The way you try this will hinge on whether you’ve an old analog meter or even a more recent electronic meter.
On an analog meter, you are going to note the readings on 5 dials, from still left to correctly, and also imitate these readings on the article on the electrical power company. In general, the pointers within the switch is between numbers, and also you’ll report the cheaper of the 2 numbers. If a dial ‘s tip is roughly on a number, check out the dial quickly to the right. If it hasn’t yet passed zero, you’ll read make use of a lower number of the reading of prior dial. (The utility company of yours is going to have exact instructions for how you can read the meter of yours; in some instances, it might require you to merely copy the visual look of the dials, love drawing clock faces.)
With an electronic meter, reading through the meter simply documenting the numerical value shown over the electronic readout.
Connecting the Feed Hot Wires
Electric Meter Wired
When the electric company connects the meter, the tech support is going to bring the program cables down from overhead, or into the meter package through a subterranean feed. With the meter box open, and the service wires sealed off, the tech support will remove the 2 hot cables (or connect collars which enable the cables to be bolted on), then simply connect them in their designated terminals. He’ll then tighten on the screws as well as tug on the cables to make certain the connections are firm.
In certain devices, the hot feed cables are 2 black colored cables, while in various other methods there’ll be a dark & a white wire.
Wiring the Load Side on the Meter
Electric Meter Load Connection
The load aspect of the electrical meter, which has strength to the primary service board, is wired either straight with the board or even to an interim disconnect. To accomplish this, the ends on the 2 hot load wires are stripped and connected to the bottom two ton terminals within the meter. Once again, the tech support is going to tighten the screws as well as tug on the cables to ensure the connections are sound.
Connecting the ground Wire
Electric Meter Ground Connection
Together with the neutral and hot wires, the system has a separate grounding wire which results from the meter package to the earth. To successfully defend this particular ground wire, the tech support might run the grounding wire by way of a hollow metal conduit on the grounding rod buried in the planet. Without this safety, the ground wire could be harmed by a lawnmower or weed trimmer.
The ground wire is attached to the soil terminal in the middle of the meter, situated alongside the basic terminal. The other end of the ground wire connects to a grounding rod through a matching known as a grounding lug.
In non commercial installations, the basic and ground use one common connection referred to as a neutral/ground connection.
Continue to six of six below.
Connecting the Neutral Wires
Electric Meter Neutral Connection
The last phase is linking the basic line plus load wires, which are generally marked with yellow tape. The tech person strips and connects these neutral cables on the best as well as bottom basic terminals in the middle on the meter box. After tightening the screws securely by having a screwdriver, the technician tugs on the cables to ensure they’re sound.
The tech person today connects the meter mechanism, closes and also locks the meter, now turns on the energy on the program wires & checks to ensure the meter runs properly.