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#95570 09/22/05 10:03 PM
Joined: Jan 2005
Posts: 5,445
Likes: 3
Cat Servant
Member
All in favor of eliminating pre-punched knockouts on anything painted grey- raise your hands!

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#95571 09/23/05 06:47 AM
Joined: Dec 2000
Posts: 4,294
Member
Hand up.

An alternative in many cases is to use reducing bushings with locknuts inside and outside.

An extreme gripe of mine is that small motors come with a 3/4" KO already knocked in them, heavily painted. It's a regular thing to find them with a 1/2" sealtite connector hanging by the conductors, RE washers floating around and a locknut floating on the inside :down:

#95572 09/23/05 10:56 AM
Joined: Apr 2005
Posts: 73
D
Member
What is with you guys? I'll bet that at least 1/2% of the times I've come across reducing washers, they have provided a good ground.
I hate those things!

#95573 09/23/05 02:03 PM
Joined: Jan 2004
Posts: 1,507
G
Member
.05% Wow that's bad. Did you mean 50%.

I'm sorry cheap shot but I'm a cheap shot artist. [Linked Image]


George Little
#95574 09/23/05 02:41 PM
Joined: Jul 2004
Posts: 9,931
Likes: 34
G
Member
George, you mean .5%? (cheaper shot)


Greg Fretwell
#95575 09/23/05 03:00 PM
Joined: Sep 2005
Posts: 106
J
Member
Found this picture on another site and thought it would say it all.
[Linked Image from nachi.org]

Thank you, Joe Tedesco

[This message has been edited by jw electric (edited 09-23-2005).]

[This message has been edited by jw electric (edited 09-23-2005).]

[This message has been edited by jw electric (edited 09-23-2005).]

After three trys I get it right, YEA!!
[Linked Image]

[This message has been edited by jw electric (edited 09-23-2005).]


Mike
#95576 09/23/05 03:12 PM
Joined: Oct 2004
Posts: 806
Member
First off, reducing washers are heavily used in my side of the biz. (Cinemas) Mainly on the flex for the DC leads to the Xenon lamp, though. Seems that the manufacturers of that equipment can't get on the same page and design a standard KO size for a given lamp type.

And did any of you catch the doublespeak in this from the UL white book? (Bold emphasis is added by me.)

Quote
GROUNDING
Metal reducing washers are considered suitable for grounding for use in
circuits over and under 250 V and where installed in accordance with
ANSI/NFPA 70, ‘‘National Electrical Code.’’


Stupid should be painful.
#95577 09/23/05 07:14 PM
Joined: Jan 2004
Posts: 1,507
G
Member
It was a test Greg to see if you were watching.


George Little
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