Posted by John T on November 18, 2012 at 06:43:34 from (216.249.82.117):
In Reply to: Electrical question posted by Stephen Newell on November 18, 2012 at 01:49:53:
Without being there I have to take an "educated guess" at what you have which may or may NOT be what your post indicated. I just cant say settin here from your post alone, sorry.
If you really have a straight 220 volt (i.e. NO 120) device/saw and it has a factory installed 3 wire cord and/or plug Id GUESS THAT THIRD WIRE (especially if its bare or green instead of white) is the safety equipment GroundING Conductor NOT a Neutral !!!!!!!!!!!!
Put an ohm meter or continuity tester on that third wire and see if it's electrically attached to the saws outer conductive metal case/frame??? IF SO, ITS THE SAFETY EQUIPMENT GROUND ING CONDUCTOR NOT A NEUTRAL.
The ONLY reason you would need 4 (2 Hots, Neutral, Equipment GroundING Conductor) wires is iffffffffffffffff the device requires BOTH 120 and 240 volts. THEN AND IF SO YESSSSSSS USE 4 WIRES
HOWEVER if its straight 240 (NO 120) all you need is 2 Hots and the Equipment GroundING Conductor which is attached to the outer conductive metallic case/frame. Similar, if it were 120 volt ONLY, again all you need is 3 wires, Hot, Neutral, Equipment Ground
THE SAFETY EQUIPMENT GROUND ING CONDUCTOR ATTACHED TO A DEVICES OUTER CONDUCTIVE METALLIC CASE/FRAME SHOULD ALWAYSSSSSSSSSSSSS BE USED REGARDLESS IF 120 OR 240 VOLT.......... IT CAN SAVE YOUR LIFE
NEVERRRRRRRRRRR MIX N MATCH OR USE GROUND FOR NEUTRAL OR NEUTRAL FOR GROUND IT CAN GET YOU KILLED THEY ARE NOTTTTTTTTTT REPEAT NOTTTTTTTTTTTTT THE SAME. The Neutral is a live return current carrying GrounDED Conductor, the Equipment Ground is a GroundING Conductor dedicated to provide a direct low resistance current carrying path FOR FAULT CURRENT ONLYYYYYYY so the breaker can trip and de energize the circuit and save your life.
The live current carrying Neutral is insulated for a reason, you wouldnt peel off the Neutral insulated jacket and touch the wire would you ??????????? BUTTTTTTTT if you start mixin n matching and using Ground for Neutral or Neutral for Ground THAT COULD BE WHAT YOURE EFFECTIVELY DOING
If I missed anything hopefully other professional electricians, electrical techs, and engineers (NOT Billy Bob and Bubba who wired their own houses over a case of beer lol) can add to this
John T Longgggggggg retired Electrical Engineer and yes rusty on latest NEC so no warranty, but believe all the above is still true and potentially life saving advice
We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]
Today's Featured Article - Listening to Your Tractor - by Curtis Von Fange. Years ago there was a TV show about a talking car. Unless you are from another planet, physically or otherwise, I don’t think our internal combustion buddies will talk and tell us their problems. But, on the other hand, there is a secret language that our mechanical companions readily do speak. It is an interesting form of communication that involves all the senses of the listener. In this series we are going to investigate and learn the basic rudimentary skills of understanding this lingo.
... [Read Article]
Latest Ad:
2022 John Deere 5045E, 4wd, front end loader and 3rd function with grapple. 120 hrs, 55k new, must sell
[More Ads]
All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy
TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.