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#112508 - 06/30/01 12:34 AM Air Vents in Wireway  
Admin  Offline

Joined: Oct 2000
Posts: 3,447
[Linked Image]
Picture is of a 6" x 6" wireway with two PVC air vents running through the middle. The top of the vent is required to be a specific height above the equipment below, so holes were drilled in the wireway and the pipe run through it.

Tom Baker

Tools for Electricians:

#112509 - 06/30/01 07:40 AM Re: Air Vents in Wireway  
Joe Tedesco  Offline
Joined: Oct 2000
Posts: 2,749
Boston, Massachusetts USA
Looks like this violates Section 300-8. Installation of Conductors with Other Systems
Raceways or cable trays containing electric conductors shall not contain any pipe, tube, or equal for steam, water, air, gas, drainage, or any service other than electrical.

Joe Tedesco, NEC Consultant

#112510 - 06/30/01 09:12 AM Re: Air Vents in Wireway  
Bill Addiss  Offline
Joined: Oct 2000
Posts: 3,878
I guess too, in practicality there may be an issue with sharp edges from the holes that were cut being exposed (if not somehow bushed)


#112511 - 06/30/01 11:01 AM Re: Air Vents in Wireway  
sparky  Offline
Joined: Oct 2000
Posts: 5,311
it always amazes me that other trades have the unabashed gumption to mess with ours.

#112512 - 06/30/01 03:18 PM Re: Air Vents in Wireway  
nesparky  Offline
Joined: Jun 2001
Posts: 642
wonder what the other trades would do if you cut out the pvc pipes and plugged the wireway. how did this get by the AHJ?


#112513 - 06/30/01 03:52 PM Re: Air Vents in Wireway  
sparky66wv  Offline
Joined: Nov 2000
Posts: 2,236
West Virginia
I had this idea to make rubber mats, 30" x 36", 42" or 48" depending on conditions. These mats would be placed on the floor of areas dedicated to electrical working spaces and would say something in bright yellow letters such as:

"DANGER! ELECTRICAL ZONE... NOTHING GOES HERE as per 1999 NEC 110-16(a). Failure to comply will result in extremely expensive change-order costs and procedures."

Whaddya think?

Residential/Commercial Inspector
5 Star Inspections
Member IAEI

#112514 - 07/01/01 12:29 PM Re: Air Vents in Wireway  
nesparky  Offline
Joined: Jun 2001
Posts: 642
like that idea are you sure the general can read?


#112515 - 07/01/01 02:04 PM Re: Air Vents in Wireway  
sparky  Offline
Joined: Oct 2000
Posts: 5,311
well Virgil,the idea has merit!

on one job i worked there were some ornery drywallers , you know, the ones with the 4" router bits.....
i had installed the MDP, and wanted to keep it clear of the rif-raf, so i put a large piece of cardboard over it that read ;

Danger, 1000 Volts!

they all backed off, and all i heard was mumbles and grumbles about that sparky's higher than normal voltage!

[Linked Image]

#112516 - 07/02/01 06:33 PM Re: Air Vents in Wireway  
electure  Offline

Joined: Dec 2000
Posts: 4,260
Fullerton, CA USA
If you run into the character that did this on a job, replace his icemaker line for the refrig with a piece of bare #4 sol Cu. The fittings fit just perfectly, and it won't leak, even into the icemaker. [Linked Image]

#112517 - 07/02/01 10:59 PM Re: Air Vents in Wireway  
John Steinke  Offline
Joined: Apr 2001
Posts: 518
Reno,Nv., USA
Looks like a Darwin candidate was here! I'd like to know how he managed to avoid nicking any wires when he drilled- and how he killed the power!

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California ,Long Beach
Posts: 28
Joined: May 2007
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