A 12 2 romex will have a blackhot and a whiteneutral wire as well as an unsheathed copper wire for ground. Parallel switch and series an electrical circuit is a closed course through which electricity continuously flows from a source through a hot wire to the device to be powered and then back to the source again through a neutral wire.

Light Switch Wiring Electrical 101
Different types of wiring diagram. Lead sheathed or metal sheathed wiring. Unlike a schematic its. The red on a 12 3 is used for three way light switches which are covered later. A 12 3 romex will have a blackhot redhot whiteneutral and bare copper. Parallel and switch wiring diagrams an explanation of the differences among the three types of wiring. One line diagram or single line diagram.
From the main switchboard various types of electrical loads such as fans lights room coolers and refrigerators are connected through the wiresthere are different types of wirings used for connecting the loads to the mains which can be used for house electrical wiring as well as industrial electrical wiring. A one line diagram or single line diagram is a simplified way to represent a three phase power system. Wiring diagram a wiring diagram is the most common form of the electrical wiring diagram. Schematic diagrams schematic electrical wiring diagrams are different from other electrical wiring diagrams because. One line diagrams do not show the exact electrical connections of the circuits. Cts or trs or pvc sheath wiring.
Wooden casing and capping wiring. The ladder diagram is used to draw the relay control circuits the ladder diagram is different from the wiring diagram because the ladder diagram is more schematic and shows a different horizontal row on each branch circuit. Different types of electrical wiring systems. These diagrams will describe the function of each branch and the resulting performance.