ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
ShoutChat Box
Recent Posts
Questioning the electrical norms
by gfretwell - 03/03/21 06:05 PM
Lock-down Thread
by gfretwell - 03/03/21 12:38 PM
Northern Tool Recalls Powerhorse Generators
by Admin - 02/25/21 09:49 PM
You will never guess
by gfretwell - 02/25/21 07:48 PM
New in the Gallery:
Facebook follies, bad wiring
FPE in Germany pt.2
Who's Online Now
1 registered members (NORCAL), 21 guests, and 22 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
Page 1 of 2 1 2
Cord hanging out of A/C disconnect #166714 07/26/07 07:39 PM
Joined: Oct 2000
Posts: 3,636
Admin Offline OP
Administrator
Member
Quote
Spotted this at a thrift store on my way to work. The cord is not only connected directly to the A/C disconnect, but is carrying 220V.

- hemingray

[Linked Image]

2017 / 2014 NEC & Related Books and Study Guides
Re: Cord hanging out of A/C disconnect [Re: Admin] #166718 07/26/07 08:32 PM
Joined: Jul 2002
Posts: 8,379
Trumpy Offline
Member
It's not called a thrift store for nothing is it?.

Re: Cord hanging out of A/C disconnect [Re: Trumpy] #166723 07/26/07 10:49 PM
Joined: Apr 2005
Posts: 200
H
Hemingray Offline
Member
Lol. yeah. Cord looked to me to be 12/2 w/g. I know that even at 20A/220V you would need 10/2.


Cliff
Re: Cord hanging out of A/C disconnect [Re: Hemingray] #166763 07/27/07 11:27 PM
Joined: Nov 2001
Posts: 52
K
KJ Offline
Junior Member
code does require outlet within 25 feet of outside equipment, no?

Re: Cord hanging out of A/C disconnect [Re: KJ] #166765 07/27/07 11:47 PM
Joined: Apr 2004
Posts: 810
Theelectrikid Offline
Member
Originally Posted by KJ
code does require outlet within 25 feet of outside equipment, no?


I don't think this is what they had in mind...

Ian A.


Is there anyone on board who knows how to fly a plane?
Re: Cord hanging out of A/C disconnect [Re: Theelectrikid] #166787 07/28/07 12:57 PM
Joined: Jan 2005
Posts: 5,316
renosteinke Offline
Cat Servant
Member
KJ, love your sense of humor laugh

Let's look at that idea a bit ...

Say you tap the required receptacle off the circuit feeding the equipment.
If tied in after the disconnect, there will be no power when you have shut the unit off for servicing. Kind of pointless.
If tied in before the disconnecting means, there is the issue of breaker sizing. You really can't put a 15 amp receptacle on a 40 amp breaker.
And, let's not forget that they usually don't have a neutral present ... which means that they're going to be tempted to do something 'clever' to 'make it work,' frown

Now, let's look at that cord.
-Cords not to be used in place of permanent wiring;
-"Temporary" limited to 90 days;
- Overcurrent protection suitable for wire size. Many such cords are #16;
-"Branch circuit wiring" must be at least #14; and,
-Such installs typically have poor / improper strain relief where they connect to the box.

Now... to be a 'wise guy' ... if the cord were 26 ft. long, woulf you consider the 'outlet' to be outside the 25 ft. requirement? laugh

Re: Cord hanging out of A/C disconnect [Re: Admin] #166810 07/29/07 10:33 AM
Joined: Mar 2004
Posts: 391
B
BigJohn Offline
Member
We installed some outdoor disconnects that are to be used by some tech. crews who come by regularly to do some power-quality monitoring. We did the line side only, being told they would take care of their load side hookups which are very temporary, only a couple hours a day every few months.

The technicians then went and installed something very similar to this picture here, which is most decidedly not temporary. The irony is, it was done almost right: Strain relief, water-proof connector, hard-service cord. But when they got the cord cap, they used a regular old NEMA 5-20 dry-location type, just hanging out their in every kind of weather waiting to be energized.

-John

Re: Cord hanging out of A/C disconnect [Re: BigJohn] #167458 08/12/07 06:44 PM
Joined: Jan 2007
Posts: 59
D
dilydalyer Offline
Member
Just a thought...Wouldn't the 12 "good" on an ac calling for 20 amp min. amps?:}

Re: Cord hanging out of A/C disconnect [Re: dilydalyer] #167520 08/14/07 09:05 PM
Joined: Jun 2007
Posts: 50
H
hardwareguy Offline
Member
Originally Posted by dilydalyer
Just a thought...Wouldn't the 12 "good" on an ac calling for 20 amp min. amps?:}


It is according to the inspector in my town.... 12/2 is routinely used for 240V window A/C units drawing 20A or less. If the cable length is longer than 50 feet or so, 10/2 is usually used.

Re: Cord hanging out of A/C disconnect [Re: Admin] #167521 08/14/07 09:06 PM
Joined: Jun 2007
Posts: 50
H
hardwareguy Offline
Member
Is it just me or is that cord entering the same KO as the A/C whip? shocked

Page 1 of 2 1 2

Featured:

2020 National Electrical Code
2020 National Electrical
Code (NEC)

* * * * * * *

2020 Master Electrician Exam Preparation Combos
2020 NEC Electrician
Exam Prep Combos:
Master / Journeyman

 

Member Spotlight
RonKipperDatacom
RonKipperDatacom
Kansas City, KS
Posts: 30
Joined: January 2013
Show All Member Profiles 
Top Posters(30 Days)
Popular Topics(Views)
275,597 Are you busy
209,516 Re: Forum
196,885 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.7.3