Power Cord Grounded Plug Wiring Diagram
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Power cord grounded plug wiring diagram. The worry is that a miswired plug poses a fairly serious shock hazard. Wire a plug to maintain correct polarity. The bonding jumper which goes between the grounded screw and the neutral terminal as shown in the 3 wire hook up wiring diagram below. Replacing the male or female plug on a cord is far less expensive than replacing the entire cord and it s easy to do.
The danger isn t fire. Wire a range power cord for 3wire and 4wire cords. Green yellow stripe ground. Some three prong plugs are also polarized and when they are the same rule applies.
When the screw is tightened on the side of the hole it draws the wire into the hole as a worm gear. The grounded screw is attached to the metal frame of the electric range and is usually located under the neutral wire terminal location. Wire the opposite end of a three wire extension cord in the same manner with a female plug. Long extension cords especially outdoor ones can be costly and though they should work for years the plugs often wear out before the cords do.
Reassemble the replacement plug and tighten the screws holding it to the cord. On a polarized grounded cord the smaller prong connects to hot and the semi rounded pin underneath the two prongs connects to ground. Make sure to choose a plug that is suited for the cord a grounded three prong plug if the cord has a ground wire a two prong polarized plug for simple household extension cords etc. The main thing to remember is to buy a plug designed for the wire gauge of the cord.
Heavy duty plugs attach to wiring by inserting the wire in the hole next to a screw. The larger prong connects to neutral. If you use a computer power cord or other cord based on the international wiring color code. Extension cords come in many forms as so do the replacement plugs used to fix them.
When replacing a three prong plug connect the black wire in the cord to the brass terminal screw the white wire to the chrome terminal and the green or bare wire which is the ground wire to the green ground screw in the plug. The key is to make sure you connect the wires to the proper terminals in the plug. Three prong plugs have a hot wire a neutral wire and a ground wire. On cords of this type the larger prong connects to the neutral wire.
The tester s lights will indicate whether the wires are hooked up correctly and the cord is grounded. Wiring a new plug isn t difficult but it s important to get the hot and neutral wires connected to the proper prongs. If you re wiring a grounded plug for extension cord ends see how you can tackle this project easily.