[Amps] TL922 Power Plugs

Paul Decker kg7hf at comcast.net
Tue Nov 3 09:50:42 PST 2009



Another possible and likely problem is if the neutral opens somewhere in the house it would cause the equipment to not work.   For example, you plug your stereophonic in with an open neutral, it wont turn on.   Then while you are trying to figure out why, you grab hold of your RCA console TV which is also plugged in, but on a different branch circuit where the neutral is intact.    Now  your body becomes the neutral between your stereophonic and the RCAs neutral.   



It may be overkill (bad choice of words?) , but most skydivers wear a backup parachute , the ground is really that backup chute. 





Paul (KG7HF) 





Message: 9 
Date: Tue, 03 Nov 2009 11:45:47 -0500 
From: Ian Hill - K8MM < ihk8mm at charter.net > 
Subject: Re: [Amps] TL922 Power Plugs 
To: " amps at contesting.com " < amps at contesting.com > 
Message-ID: < 4AF05E3B.70003 at charter.net > 
Content-Type: text/plain; charset =ISO-8859-1; format=flowed 

A lot of the residential wiring back then lacked a dedicated grounding 
conductor. It only had two wires, a "hot" and a neutral, unlike the wire 
used today which has three wires including a dedicated grounding 
conductor. The neutral was also used as an equipment safety ground. If 
the neutral opened up somewhere in the circuit, such a bad splice 
somewhere in the house, you no longer had a ground and ugly things 
happened when shorts would develop between the 120V conductor and the 
cabinet. 

Ian - K8MM 






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