Earth hole size - CR4 Discussion Thread

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Kabir Participant Join Date: Jan 2008 Posts: 4	Earth hole size 02/15/2008 11:45 PM
	will anybody help me to know that Y d Eath hole size is bigger in the Plug point ?
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Sparkstation Guru Join Date: Nov 2007 Location: Christchurch, (The Garden City), South Island, New Zealand Posts: 4395 Good Answers: 230	#1 Re: Earth hole size 02/16/2008 12:58 AM
	Hello Kabir You don't say your location, therefore I don't know what actual plug and socket you are referring to. The Earth/Ground connection is normally made larger than the others, and the Earth/Ground pin on a plug is slightly longer, this is to ensure the Earth/Ground connection is physically stronger, and makes before all others, likewise disconnecting after all others. The reason is safety. Kind Regards.... __________________ "The number of inventions increases faster than the need for them at the time" - SparkY
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bwire Guru Join Date: Dec 2007 Location: Upper Mid-west USA Posts: 7498 Good Answers: 97	#2 In reply to #1 Re: Earth hole size 02/16/2008 1:55 AM
	Polarity issues are paramount...to safety also __________________ If death came with a warning there would be a whole lot less of it.
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tdbil Participant Join Date: Feb 2008 Posts: 1	#3 Re: Earth hole size 02/16/2008 5:32 AM
	For any electrical connection the thumb rule is that "earth connection is the first connection to be given and is the last connection to be removed". In that manner only the earth points are usually long and stout. Also has the advantage of polarity fool profing.
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biswanath.das Power-User Join Date: Oct 2006 Location: Kolkata, India Posts: 447	#4 In reply to #3 Re: Earth hole size 02/21/2008 7:22 AM
	In addition to all above answers the Earth point in acts as dowel pin. __________________ BNDas
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PWSlack Guru Join Date: Jan 2007 Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing, in the nation formerly known as Great Britain. Kettle's on. Posts: 32175 Good Answers: 839	#5 Re: Earth hole size 02/26/2008 6:41 AM
	In addition to the above, it is done so that the earth pin cannot be inserted into the neutral hole or (good grief, Ethel! ) the live hole. In that way, the casing of the appliance cannot become live inadvertently. __________________ "Did you get my e-mail?" - "The biggest problem in communication is the illusion that it has taken place" - George Bernard Shaw, 1856
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Users who posted comments:

biswanath.das (1); bwire (1); PWSlack (1); Sparkstation (1); tdbil (1)

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