How To Install A 3 Wire 220 Outlet

Information technology is very easy to understand why many people go confused when attempting to install an electric dryer. For starters, the heavy cable used on an electrical dryer may have three or 4 heavy wires. Since 2000, electrical code states that iv wires are required. For many people fooling with these heavy wires is very intimidating. The wires are heavy estimate considering the dryer heating element draws 15 Amps. Normal lamp string wiring volition go hot and melt.   I have seen many novices cause a lot of trouble by mixing heavy and light gauges.  Near folks are frightened away by the heavy wires and leave the job to apparatus technicians or electricians.

Many dissimilar situations are encountered. If a person moves an old dryer to a new firm they may be faced with an former three-prong line cord on the dryer and a four-prong outlet.

Second, a new dryer does not come with a line cord. Often a retailer will sell the customer a four-prong cord (The current lawmaking). When they get home, they notice that their house has a 3-prong outlet and they don't know what to practice.  Of course, they are irritated because they idea all they had to do was plug it in and start drying clothes.  I must acknowledge that fewer and fewer homeowners attempt to connect up annihilation involving 220 V.  Information technology scares them to death.  Nevertheless, this mail will explain the logic behind the national code changes and how to handle these situations.

Offset, let's review a scrap of history. When electric dryers kickoff came out 60-70 years ago they were all hardwired to the house (no cords were made back then).  The cable used was 10-3 with the ground. Information technology included 4 wires. 3 of the wires were 10 gauge a black, white and crimson. The fourth wire was 12 gauge, bare copper.

The three colored wires were attached to the terminal block on the dorsum of the dryer with the white wire going to the heart. The bare copper wire was screwed to the metal frame or shell or the dryer. The reddish and black are interchangeable but typically the red is connected to the right-hand side of the block. Nothing could be simpler. It was hard to become it incorrect. The white wire and the bare ground wire parallel one another back to the panel box and are connected together and to the world. The neutral wire carries minimal current while the crimson and black carry the heater circuit. The bare ground wire carries no current and it's purely a condom excursion.

As the years went by new homes were built with a dryer outlet already installed in the wall and three-prong line cords were made available to connect the dryer to the heavy outlet. These line cords were three wire only and did non include the bare wire.

A cautious electrician or homeowner would add together a bare wire, a ground wire, from the case of the dryer to the metal instance of the outlet or a water pipage. This insured that the metal example of the dryer was directly connected to the earth footing through the electric organization of the house.  Past doing so it was impossible to get a stupor by touching the dryer.

A grounding strap was added next to the terminal block within the dryer connecting the center tab (the white one) to the chassis metal of the dryer. This was the second way of ensuring that the metallic case was connected to earth because the white eye wire is connected to the world back at the panel box. All of these shenanigans are in identify to forestall or dissipate any voltage from appearing on the case of the dryer thus preventing electrocution.

With the appearance of the extra-safe 4-wire heavy line cord the missing bare ground wire from decades gone by has reappeared within the line cord. It is the quaternary wire and color-coded green. This green wire is to be continued to the chassis or example of the dryer. The grounding strap within the dryer (supplied past the manufacturer)  is removed. The new dark-green wire takes it place.

Back at the panel box the green wires, any blank copper wires,  the white centre neutral wire are all continued together and directly continued to the utility basis and also to a heavy copper rod that is driven into the earth.

Back to the problem at mitt, information technology is far easier to change the line cord then it is to modify the socket.

Consequently, friction match your line cord prongs to the socket holes and by a line cord that fits.

Wire the matching cord as shown here.

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Source: https://appliancerepairstartup.com/how-to-wire-a-three-or-four-wire-dryer-outlet/

Posted by: hartancries.blogspot.com

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