220/240v appliances in the US
robwhittier
4 years ago
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GreenDesigns
4 years agolast modified: 4 years agoRon Natalie
4 years agolast modified: 4 years agoRelated Discussions
4 wires for 240v appliance
Comments (8)"The circuit is still the same, if wire gauge is large enough to carry the current without resistance." There is ALWAYS a voltage drop in a wire carrying current, no matter how large the wire is. The grounding conductor (AKA 'safety ground') is NOT intended to be part of the circuit in normal operation. It is there to keep the chassis at zero volts to earth, and provide a path for fault currents to trip breakers (or fuses) if the chassis should become electrically hot from a fault in the equipment. If the ground was not present the chassis could be at 120 V until another path to ground occurs, like through a person touching the chassis and a ground. Very old radios without a polarized plug could have the chassis at 120 V. Touch a metal knob or the chassis and ground and you competed the circuit. Since no current is flowing in the grounding conductor (safety ground) it is reliably at zero volts to earth. The neutral (AKA grounded conductor) is NOT at zero volts since it is part of the circuit, carries current, and the current creates a voltage drop (it may be very small, but it is not zero). A typical US house uses an Edison circuit, created by grounding the center tap of the secondary winding on the pole transformer. This limits the voltages to 120 V to earth, while providing 240 V leg-to-leg for larger loads. Since transformers always have leakage from the primary side to the secondary side (through inter-winding capacitance) and the lowest distribution voltage is 7,200 volts the secondary will charge to this value if it is not connected to the primary somehow to create a return path for the leakage current. This is normally done by using a 3-phase Y to distribute power, with the center of the Y connected to earth and used as a neutral to return any imbalance in the three phase loads. One side of each phase transformer is thus tied to earth and neutral. Any leakage from the primary side can then return through the earth connection from the house main panel to the pole primary earth connection. While the earth is a poor conductor at 120 V, it works well at 7,200 V (and higher) most of the time. In some areas (sandy dry soil) a neutral is run on the poles to ensure it is available for current even when the earth resistance is excessive. One of the hazards that was created by using metal water pipes as a grounding electrode is that water line workers can be injured or killed. If they cut a water line and then touch each side of the cut pipe there can be enough voltage and current to kill. Arguably the current might still be there if the pipe was NOT used as a grounding electrode though. The pipe would likely still be a lower impedance path, and current would preferentially flow in it over a higher impedance earth only path....See MoreHow to wire 240v 4 wire appliance to 3 wire in wall?
Comments (6)"The manual did stated that 110V or 240V was acceptable." I highly doubt this. I bet it was more like 120/240v, which is what a 240v 4-wire circuit is. The 120v receptacle on a 30A breaker is also a nice big code violation. You first need to confirm the requirements of the range. More than likely if it is a free standing electric range a 40A circuit is sufficient. If the old wire IS in fact #8 then you do have what you need to make it work. You can use an old 3-wire non-grounded 120/240v circuit if it is existing. This is one of the rare cases this is allowed. Confirm the wire size and get back to use. PLEASE don't just hook this thing up to #10 wire because it is there. You want to keep your family safe, and not trip breakers every time you cook....See MoreImported 220V/240V 50hz/60hz Euro appliances
Comments (1)The appliance will probably work. 22v 60hz is the same in the EU and it is here. But check with the manufacturer to be sure. Keep in mind, however, that an appliance optimized for 220v 50Hz operation will work, but it will lost a lot of its efficiency operated at 60 hz. If you plug it in, you will need an adapter since N. American 220v plugs differ from Euro 220v plugs, but if you intend to hard wire, you avoid this problem. The real problem I see is with the certification. A European CE certification is not the same as a N. American UL listing, the standards against which the appliance is tested are quite different. Most electrical codes, and most U.S. fire codes, prohibit installing a non-listed appliance. I doubt you will find an electrician that will install it. Your best course is to contact your local code authority and fin out if a CE certified appliance can be legally installed in your state....See MoreMiele 240v washer vs other 240v washers sold in U.S.?
Comments (16)@Weedmeister - In speaking with Miele customer service, I’ve actually learned that my washer is un-repairable. To replace the worn ball bearings require the ability to lift the drum out, which only a few repair shops can do, due to the weight and construction of the machine. In the past, people would actually ship their washers to Miele in New Jersey, but Miele is no longer doing that. So repairing the machine is not an option. I will look into the Bosch and the Asko Logic, as well as the newer Miele washers that don’t work on 240v, just to see if that might be a viable option....See Morerobwhittier
4 years agoElmer J Fudd
4 years agolast modified: 4 years agorobwhittier
4 years agoRon Natalie
4 years agowdccruise
4 years agoElmer J Fudd
4 years agoRon Natalie
4 years agoRon Natalie
4 years agojwvideo
4 years agolast modified: 4 years agoRon Natalie
4 years agolast modified: 4 years agojwvideo
4 years agolast modified: 4 years agoGreenDesigns
4 years agotoxcrusadr
4 years agoRon Natalie
4 years agokaseki
4 years agolast modified: 4 years agotoxcrusadr
4 years agoM
4 years agolast modified: 4 years agoweedmeister
4 years agoplllog
4 years ago
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