nanog mailing list archives
Re: L6-20P -> L6-30R
From: Larry Sheldon <LarrySheldon () cox net>
Date: Wed, 19 Mar 2014 17:58:14 -0500
On 3/19/2014 7:00 AM, Alex Rubenstein wrote:
Go look at any standard household lamp. It has a 5-15P on the end of it, which could be plugged into an outlet rated for 20 amps (5-20R), with 16 gauge lamp cord rated for 10 amps or less.Mine all seem to be NEMA 1-15P, some (most?) with 18 AWG wire. Have I been shortchanged? :)I wrote that too fast, you are absolutely right. But my point remains. Appliance/load wire size is often, and many times smaller than the ampacity of the circuit. Heck, how many times have you plugged in a 14 gauge extension cord to a 5-20R?
I believe the thinking behind the standards is that the breaker is sized to protect the wiring to the receptacle or fixture. After that you are on your own.
It is always safe to demand less current than the circuit is designed to provide.
It is never save to deform connectors.Changing a receptacle to one of a lower capacity is safe, if confusing to those who follow you. If I operated a facility I would offer short adapters cords rather that changing the receptacle.
-- Requiescas in pace o email Two identifying characteristics of System Administrators: Ex turpi causa non oritur actio Infallibility, and the ability to learn from their mistakes. (Adapted from Stephen Pinker)
Current thread:
- Re: L6-20P -> L6-30R, (continued)
- Re: L6-20P -> L6-30R Wayne E Bouchard (Mar 18)
- Re: L6-20P -> L6-30R Niels Bakker (Mar 18)
- Re: L6-20P -> L6-30R Stephen Sprunk (Mar 18)
- Re: L6-20P -> L6-30R Randy Carpenter (Mar 18)
- Re: L6-20P -> L6-30R Jay Ashworth (Mar 18)
- Re: L6-20P -> L6-30R Laszlo Hanyecz (Mar 18)
- Re: L6-20P -> L6-30R Wayne E Bouchard (Mar 18)
- RE: L6-20P -> L6-30R Alex Rubenstein (Mar 18)
- Re: L6-20P -> L6-30R Rob Seastrom (Mar 19)
- RE: L6-20P -> L6-30R Alex Rubenstein (Mar 19)
- Re: L6-20P -> L6-30R Rob Seastrom (Mar 19)
- Message not available
- Re: L6-20P -> L6-30R Larry Sheldon (Mar 19)
- Re: L6-20P -> L6-30R William Herrin (Mar 18)
- Re: L6-20P -> L6-30R Wayne E Bouchard (Mar 18)
- Re: L6-20P -> L6-30R Lamar Owen (Mar 19)
- Re: L6-20P -> L6-30R William Herrin (Mar 19)
- Re: L6-20P -> L6-30R Lamar Owen (Mar 19)
- Re: L6-20P -> L6-30R William Herrin (Mar 19)
- Re: L6-20P -> L6-30R Chuck Anderson (Mar 19)
- Re: L6-20P -> L6-30R William Herrin (Mar 19)
- Re: L6-20P -> L6-30R Jay Ashworth (Mar 19)
- Re: L6-20P -> L6-30R Aaron (Mar 19)