Auxiliary Gutters Nec

In concealed spaces as permitted in nec section 376 10.

Auxiliary gutters nec.

A similar code change occurred in article 376 for metal wireways. This article covers the use installation and construction requirements of metal auxiliary gutters and nonmetallic auxiliary gutters and associated fittings. Where in the nec is it permitted to install an auxiliary gutter in a length longer than 30 ft. Articles 376 and 378 focus on wireways not auxiliary gutters.

Articles 376 and 378. The openings must be closed. This auxiliary gutter used as a pull box is 5ft long 14inches deep by 14inches in height. Of its interior cross sectional area 366 22 a b this is for both sheet metal and nonmetallic gutters.

Metallic wireway selection reference nfpa 70 national electrical code 2. Below is a preview of article 366. Most auxiliary gutters are made of ferrous metal therefore it only makes sense to keep parallel conductors grouped properly behind the gutter box cover. Nowhere 30 ft is the maximum length for any auxiliary gutter.

In hazardous classified locations as permitted by nec articles 501 502 and 504. See the actual nec text at nfpa org for the complete code section. Unused cable or raceway openings in boxes raceways auxiliary gutters cabinets cutout boxes meter socket enclosures equipement cases or housings shall be effectively closed to afford protection substantially equivelant to the wall of the equipment if they are not going to use it. Figuring the 20 is easy for example.

The term gutter is used in this non raceway location in the nec. Nec 110 12 a unused openings. We are allowed by code to fill a gutter to 20. Article 366 auxiliary gutters i.

Listen as paul abernathy talks about the requirements for not exceeding 20 fill for wireways and auxillary gutters. I get a lot of calls to make sure that the gutter that they are using is up to code. As extension through walls if the length passing through a wal is unbroken and access to conductors can be mained from. Once there click on.