![]() the neutral wire, will be connected through the receptacle's internal parts to the wide slot on the receptacle face in order to assure that the neutral wire side of an appliance being plugged-in there is properly connected. The "neutral" white wire should be connected to the silver-colored screw terminal on the electrical receptacle, usually marked NEUTRAL or WHITEĬarson Dunlop Associates' sketch points out that the white wire, i.e.The connection shown in our photo (left) is correct. The "hot" or "live" black wire (or red wire) should be connected to the brass-colored screw terminal on the.The hot and neutral wires must be connected to the proper terminals on the electrical receptacle or at any other electrical device or circuit. What is Reversed Polarity at an Electrical Receptacle and Why Is It Unsafe? We also provide an ARTICLE INDEX for this topic, or you can try the page top or bottom SEARCH BOX as a quick way to find information you need. ![]() The illustration at page top shows the typical wiring of an electrical outlet or "receptacle", courtesy of Carson Dunlop Associates (found at page bottom, Click to Show or Hide), A Toronto Home Inspection, Report Writing & Education Firm Electrical receptacles (also called electrical outlets or "plugs" or "sockets") are simple devices that are easy to install, but there are details to get right if you want to be safe. This article series describes how to choose, locate, and wire an electrical receptacle in a home. What happens if you reverse the hot and neutral wires at an electrical receptacle? We also explain the difference between reversed polarity and reversed LINE - LOAD connections in a building electrical circuit. Reversed polarity electrical receptacles:ĭefinition of reversed polarity at an electrical receptacle, its causes, cures, and dangers. We have no relationship with advertisers, products, or services discussed at this website. With luck, he will avoid becoming an Electrical Engineer (and earn a lot more money) so phases may never cause him worry.InspectAPedia tolerates no conflicts of interest. I have a bi-lingual (US/UK) grandson and they have great difficulty deciding what words he should use in instances like that. In the UK, it's the place where the pedestrians walk. Apparently, the word "pavement", in the states, is where the cars go. Did you know that, in the US and certain other places, they even drive on the wrong side of the road? And, my dear, the language. Things that you take for granted are so different elsewhere. We do live in an interesting world, though. It would not be usable when the neutral current could be ' diverted' through the other phase, though. It could work for individual outlets in the US system and anywhere after the neutral is 'split'. The RCD can only work when you can rely on the same current through both wires. I have done lots and lots of permanent mains wiring. I am very familiar with what happens here in the U.S. I suspect there are not that many differences if any. ![]() I need to research specifically the differences in an RCD in the UK and GFCI outlets and breakers we use in the U.S. It is not permitted to connect between phases where single phases are supplied. If (God forbid) the neutral came disconnected back at the transformer then two adjacent houses would each have RDC trips and one or both of them would instantly disconnect. This is yet another example of US /European misunderstandings about Mains electricity.Įlectrical suppliers in the UK have RCDs "off the shelf" and all new installations use them. So an RCD would disconnect the supply as soon as there are appliances connected between the two anti phase lines. But the UK moved on since then starting in the late 60s' I know because as I bought an RCD back then.ĪhA! Of course, I just realized: with a split phase system (US), the neutral current can easily not be the same as the live current. Such devices were used, back in the 60s in the UK - I know, as we had one. ![]() How could that not work? A simple trip which measures Earth currents directly would obviously give no protection if the current could take a non-earth path. It is a double pole isolator with four terminals which opens when there are different currents in live and neutral lines. I don't think you are understanding how a RCD works in the UK system. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |