Depth to bury PVC conduit [RE-wrenches]

[William Miller]

Dear AJ:

As mentioned by others, 18" of cover is required, or-- run it on the surface:

II. Installation
352.10 Uses Permitted.
The use of RNC shall be permitted under the following conditions.
FPN: Extreme cold may cause some nonmetallic conduits to become brittle and
therefore more susceptible to damage from physical contact.
(A) Concealed. In walls, floors, and ceilings.
(B) Corrosive Influences. In locations subject to severe corrosive
influences as covered in 300.6 and where subject to chemicals for which the
materials are specifically approved.
(C) Cinders. In cinder fill.
(D) Wet Locations. In portions of dairies, laundries, canneries, or other
wet locations and in locations where walls are frequently washed, the
entire conduit system including boxes and fittings used therewith shall be
installed and equipped so as to prevent water from entering the conduit.
All supports, bolts, straps, screws, and so forth, shall be of
corrosion-resistant materials or be protected against corrosion by approved
corrosion-resistant materials.
(E) Dry and Damp Locations. In dry and damp locations not prohibited by
352.12.
(F) Exposed. For exposed work where not subject to physical damage if
identified for such use.


William

PS:  Not that I typically recommend running PVC on the surface, but I
believe it is legal, if you can prove it is not subject to damage.  This is
appropriate in rocky areas or on steep hillsides where trenching is
impractical or contra-indicated.  I believe the logic is if you can see it,
you won't dig into it.

WM





At 01:14 PM 3/31/2003 -0500, you wrote:
>Hello-
>Does anyone have a recommendation as to how deep to bury 1 1/2" PVC
>conduit from an array to a LB at the house 100' away?  The soil is a
>silty clay and it is at least 8' to bedrock.  Thanks.
>
>ciao,
>aj
> 

__________________________________________________________________
William Miller
Miller Power and Communications
PO Box 50, Santa Margarita, CA 93453
Voice :805-438-5600     Fax: 805-438-4607	
email: wrmiller at slonet.org
http://millerpowerandcomm.com
License No. C-10-773985
_____________________________________________________________
Compatibility:
Word processor: WP10
Spreadsheet: Quatro Pro 10
CAD: Microstation 95, DXF, Visio 4.1T
_____________________________________________________________
"Every decent man is ashamed of the government he lives under."
                                    H. L. Mencken
__________________________________________________________________

- - - -
To send a message: RE-wrenches at topica.com

Archive of previous messages: http://www.topica.com/lists/RE-wrenches/

List rules & etiquette: http://www.mrsharkey.com/wrenches/etiquete.htm

Check out participant bios: www.mrsharkey.com/wrenches/index.html

Hosted by Home Power magazine

Moderator: michael.welch at homepower.com

==^================================================================
This email was sent to: michael_welch at sbcglobal.net

EASY UNSUBSCRIBE click here: http://topica.com/u/?bz8Qcs.bz9JC9.bWljaGFl
Or send an email to: RE-wrenches-unsubscribe at topica.com

TOPICA - Start your own email discussion group. FREE!
http://www.topica.com/partner/tag02/create/index2.html
==^================================================================