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Paul— About the term “network service,’ in the US, ANSI C84.1 60Hz-voltage ratings states in the footer notes: {Referring to 208Y/120-volt 3ø 4w} “A modification of this three-phase four-wire system is available as a 120/208Y-volt service for single phase, three-wire, open-wye applications.” I suppose it’s somewhat of a slang term by utilty meterguys and line crews, because it’s derived from a (potentially quite large) 4-wire network.
From one US electric utility’s electric rule book: “In locations where PG&E maintains a {4-wire} 120/208 volt secondary system, 3-wire single-phase service normally shall be limited to that which can be supplied by a main switch or service entrance rating of 200 amperes.” From: pge.com/customer_services/business/tariffs/doc/ER2.doc
An example might be a metropolitan area surrounded by multi-story office buildings, with a little old cigar store and its small electric service; i.e., 60 amperes, with only lighting loads so 208 V (versus 240) is not of concern.
[This message has been edited by Bjarney (edited 05-23-2002).]
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Ok theorists, help me out
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Steve Miller
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05/01/02 12:46 AM
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Re: Ok theorists, help me out
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Steve Miller
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05/01/02 12:50 AM
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pauluk
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05/01/02 08:46 PM
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Steve Miller
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05/02/02 03:00 AM
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Bjarney
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05/02/02 03:23 AM
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pauluk
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05/02/02 07:45 AM
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Bjarney
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05/07/02 03:08 AM
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pauluk
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05/07/02 11:35 PM
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Bjarney
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05/12/02 01:23 AM
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pauluk
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05/12/02 08:43 PM
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hurk27
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05/15/02 06:11 AM
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pauluk
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05/15/02 07:15 PM
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hurk27
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05/16/02 05:14 AM
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pauluk
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05/16/02 09:36 PM
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Scott35
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05/18/02 06:27 PM
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Bjarney
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05/18/02 07:29 PM
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pauluk
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05/19/02 08:34 PM
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Bjarney
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05/19/02 10:05 PM
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Bjarney
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05/20/02 03:08 PM
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pauluk
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05/20/02 06:30 PM
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Bjarney
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05/23/02 06:23 PM
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JBD
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05/23/02 08:48 PM
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pauluk
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05/24/02 09:56 AM
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resqcapt19
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05/24/02 11:49 AM
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JBD
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05/24/02 01:11 PM
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resqcapt19
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05/24/02 02:47 PM
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Scott35
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05/25/02 03:28 AM
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Scott35
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05/25/02 03:35 AM
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pauluk
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05/25/02 01:33 PM
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Bjarney
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05/25/02 08:13 PM
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Re: Ok theorists, help me out
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Bjarney
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05/25/02 08:55 PM
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