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#175876 - 03/13/08 02:46 PM Tray Cables into Mcc's termination methods???
Yoopersup Offline
Member
Registered: 03/04/03
Posts: 822
Loc: Michigan
I;ve seen Chase nipples put into the top of Mcc's (in wireways only) then several Tray cables run into them . I told the conmtractor I didn't feel this was a approved termintation method. I;ve seen Nipples from Mcc's up to the tray (lest them 24inches . But never Chase nipples?? My concern was even thought the nipples open into the wireways it leaves an unprotected opening.YER opinions Please.
YoopersUp
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#175878 - 03/13/08 03:24 PM Re: Tray Cables into Mcc's termination methods??? [Re: Yoopersup]
JBD Offline
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Registered: 07/12/01
Posts: 599
Loc: WI, USA
I have seen what you describe. The wiring trough area of MCC's (for load conductors) does not provide direct access to any energized parts, I would be more concerned with securing the TC.
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#175882 - 03/13/08 04:16 PM Re: Tray Cables into Mcc's termination methods??? [Re: JBD]
Yoopersup Offline
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Registered: 03/04/03
Posts: 822
Loc: Michigan
The drop from the tray to the Mcc's is only about 24-36 inches Max.what about 392.8(c)
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#175884 - 03/13/08 05:30 PM Re: Tray Cables into Mcc's termination methods??? [Re: Yoopersup]
resqcapt19 Offline
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Registered: 11/10/00
Posts: 2148
Loc: IL
Take a look at 312.5(C) and 314.17(B).
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#175887 - 03/13/08 06:27 PM Re: Tray Cables into Mcc's termination methods??? [Re: resqcapt19]
Yoopersup Offline
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Registered: 03/04/03
Posts: 822
Loc: Michigan
But does a MCC come into play in that section??
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#175997 - 03/17/08 04:55 PM Re: Tray Cables into Mcc's termination methods??? [Re: Yoopersup]
resqcapt19 Offline
Member
Registered: 11/10/00
Posts: 2148
Loc: IL
In my opinion, between Articles 312 and 314, all electrical enclosures are covered.
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#176032 - 03/18/08 03:27 PM Re: Tray Cables into Mcc's termination methods??? [Re: resqcapt19]
Yoopersup Offline
Member
Registered: 03/04/03
Posts: 822
Loc: Michigan
The Scope sections 312.1 & 314.1 says otherwise.
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#176121 - 03/20/08 06:04 PM Re: Tray Cables into Mcc's termination methods??? [Re: Yoopersup]
resqcapt19 Offline
Member
Registered: 11/10/00
Posts: 2148
Loc: IL
I think that I can stretch the scope of 314 to cover just about any electrical enclosure including MCCs.
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#176144 - 03/21/08 05:25 PM Re: Tray Cables into Mcc's termination methods??? [Re: resqcapt19]
Yoopersup Offline
Member
Registered: 03/04/03
Posts: 822
Loc: Michigan
314 No way. 312 you'd have to use 90.4 and I really think you'd be streaching it. Which one is it a Cabinet(see definitions) Cut out box (No), Meter Socket encloser (No).
So then a MCC must be a Cabinet .
Cabinet (an encloser that is designed for either surface mounting or flush mounting and is provided with a frame ,mat, or trim in which a swinging door or doors are or can be hung. Doesn;t sound like a MCC does it??
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#176160 - 03/22/08 08:12 PM Re: Tray Cables into Mcc's termination methods??? [Re: Yoopersup]
resqcapt19 Offline
Member
Registered: 11/10/00
Posts: 2148
Loc: IL
The part of the MCC that you run the cables into is used as a pull box.
Quote:
314.1 Scope
This article covers the installation and use of all boxes and conduit bodies used as outlet, device, junction, or pull boxes, depending on their use, and handhole enclosures.
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