Re: Should I earth my supply ground?

siliconmike wrote:

Or in general, why are grounds earthed?

Mike


Theory: "Ground" is an infinite capacitor without any resistance or inductance and can accept currents of any size and frequency without building a voltage difference.
So supposedly it is a reference point and any grounded equipment, working OR faulty does NOT built voltages that can be fatal to people.
(Have you ever got a static shock from body of car, then you know what I mean)
In practice every part of equipment is connected (sometimes) to ground with a wire and the electrical properties of the connection will determine the quality of "grounding".

HTH "in general"

Stanislaw
Slack user from Ulladulla

.

Relevant Pages

  • Re: Panasonic SA-HT70 not working! :-(
    ... Should I be testing the voltage difference between pins 1 and 14? ... The reference is ground ie any piece of metalwork on the unit such as the ... be aware of the safety angles of working on a piece of live equipment. ...
    (sci.electronics.repair)
  • Re: Breaker Panel 220V problem
    ... you'd expect the lights on the "broken connection side" ... The voltage difference between the two legs at the panel is the ... Cycle the main breaker, and see if things work any better. ...
    (alt.home.repair)
  • Re: Panasonic SA-HT70 not working! :-(
    ... Should I be testing the voltage difference between pins 1 and 14? ... of the schematic as a pdf if you need it. ...
    (sci.electronics.repair)
  • Re: Panasonic SA-HT70 not working! :-(
    ... aarpay wrote: ... Should I be testing the voltage difference between pins 1 and 14? ...
    (sci.electronics.repair)