Colours of inner wires within a cable
|green and yellow stripes||earth|
The black (hot) and white (neutral) wires carry the current, and the copper wire is the ground. Note that the outlet's screw terminals are certain colors. The white wire goes on the silver screw. The bare copper or green wire goes on the green screw.
The following wiring color requirements apply in Canada: Ground wires: green, or green with a yellow stripe. Neutral wires: white. Single phase live wires: black (or red for a second live wire)
The earth wire creates a safe route for the current to flow through if the live wire touches the casing. You would get an electric shock if the live wire inside an appliance, such as a cooker, came loose and touched the metal casing.
The protective ground is green or green with yellow stripe. The neutral is white, the hot (live or active) single phase wires are black , and red in the case of a second active. Three-phase lines are red, black, and blue. sleeve covering the conductor is used for eathing in india.
To distinguish between them different countries use different color code for identification. In India 3 colors i.e. Red, Blue and Yellow are used for 3 phase live supply, Black is used for neutral and Green or Green with yellow stripes wire is used for earthing(ground) . Here's a Wikipedia link for electrical wiring.
If a fault occurs where the live wire connects to the case, the earth wire allows a large current to flow through the live and earth wires. This overheats the fuse which melts and breaks the circuit. If a faulty live wire touches the inside of the plastic case there's little risk as the case is an insulator.
Note: The Yellow/Green wire (Earth) needs to be slightly longer than the blue (Neutral) and Brown (Live) wires, in order to reach the top terminal. It is better to have the cables slightly longer than necessary and cut them to the correct length than try to stretch cables to make them reach the terminals.
Black, Red and Blue are used for hot wires and White is used as the neutral wire in a 120/208 V circuit. Brown, Orange and Yellow are used as hot wires and gray is used as the neutral wire in a 277/480 V. For grounding, regardless of the voltage, Green is used.
You can find more on the colors of Venus here. Earth: mostly blue with white clouds. Oceans and light scattered by the atmosphere make Earth prevailingly blue. Depending on the area seen in an individual picture, brown, yellow and green continents can be seen or parts of Earth can be covered by white clouds.
Feed a length of 14-3 type NM cable (or 12-3, if you're connecting to 12-gauge wire) between the two boxes. The 14-3 cable has three insulated conductors: white, black and red (plus a bare ground wire). Connect the wires to the new three-way switches with ground screws using one of the two wiring diagrams (Fig.
The power source, or "feeder wire" is a 2-wire cable with a ground, meaning it has one black (hot) wire, one white (neutral) wire and a bare copper ground wire. The black hot wire from the feeder cable is connected to the common terminal on the first switch. Neutral wires do not connect to switches.
Black: Black wires are used for power in circuits and they are usually hot (or live). They often run between a switch and an electrical load. Never attempt to use a black wire as a neutral or ground wire. Red: Red wires are usually secondary live wires in circuits.
Blue, previously used as a phase colour, is now the colour for neutral. Black, which was previously used for neutral, now indicates a phase. Household wiring does not usually use three-phase supplies and the clash only occurs in three-phase systems. Wiring to the old standard can be detected by use of a red wire.
Most houses today have two 110 volt wires and one neutral wire running into the house from the local distribution system. These wires can run underground or above ground. If there are two 110 volt wires running to the house, then the house has 220 volt service and appliances, such as dryers and air conditioners.
Neutral is a circuit conductor that normally carries current back to the source. In the electrical trade, the conductor of a 2-wire circuit connected to the supply neutral point and earth ground is referred to as the "neutral".
Wiring Color Codes. Black wires identify negative or hot wires. Switches connect on negative side of battery to the load (light). White wire is used to identify the positive polarity.
Thermostat Wiring Color Code Chart
|Marking||Wire Color Code||Description|
|Marking||Wire Color Code||Description|
|Rh||Red||Power from heat, 24 Vac transformer|
|C||Black/Blue||Common of 24 Vac transformer|
|W||White||Primary heat cell relay|
Line connections have wires attached to them in colors like black, red, and blue. These are considered the hot wires and carry the current to the devices. White wires are used for neutral connections, while green or bare copper wires are used for ground wires. The load connections follow these same principles.
The new three- phase core colours are brown, black and grey, with blue for neutral and green/yellow for the earth/protective conductor. The following limitations apply: Green/yellow cores shall be used only as protective conductors and shall not be converted e.g. by sleeving for use as neutral or line/phase conductors.