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Rigid Conduit, Fittings, and Accessories – Frequently Asked Questions

25701 Science Park Drive

Cleveland, Ohio 44122

216-464-3400

1-800-3CARLON (322-7566)

www.carlon.com

I am looking for a 4" fiberglass conduit product. Do you make such a product?

Carlon does not make a fiberglass conduit. We do sell 4" fiberglass Multi-Gard

with three or four pre-installed innerducts, but not on its own. Two companies

come to mind: United Fiberglass (USA) and FRE Composites Inc. (Canada).

I am working for the U. S. Government for the "Office of Overseas Buildings

Operations (OBO). We have procured big quantity of "Carlon plus 40 rigid non

metallic conduits" for the project work, being executed in Abu Dhabi. Please

advice us of your recommendation on storage of "Carlon plus 40 rigid non

metallic conduits". Can "Carlon plus 40 rigid non metallic conduits" be stored in

an open to sky area in direct sunlight, the temperature in this region goes up to

50C to 55C with 100% humidity.

Carlon Schedule 40 PVC Conduit is designed for outdoor applications in all

weather conditions. Therefore can be stored outside without any additional

protection. We recommend when stacking the crates that the wood "slates" used

to bundle the conduit are placed on top of each other and not directly onto the

conduit.

What is the difference between sch 40 and sch 80? What applications would you

use one compared to using the other one?

Schedule 80 Conduit will have a thicker wall. OD's will remain the same. Section

347-3(c) of the 1999 NEC (352.12(C) of the 2002 NEC) states that Rigid

Nonmetallic Conduit is not permitted where subject to physical damage unless

identified for such use.

Schedule 80 conduit is listed and identified for the areas of physical damage. If

you are concerned with impacts or crushing after the raceway has been installed

than schedule 80 conduit should be used.

Gross Automation (877) 268-3700 · www.carlonsales.com · sales@grossautomation.com

Summary of content (10 pages)

PAGE 1
Rigid Conduit, Fittings, and Accessories – Frequently Asked Questions I am looking for a 4" fiberglass conduit product. Do you make such a product? Carlon does not make a fiberglass conduit. We do sell 4" fiberglass Multi-Gard with three or four pre-installed innerducts, but not on its own. Two companies come to mind: United Fiberglass (USA) and FRE Composites Inc. (Canada). I am working for the U. S. Government for the "Office of Overseas Buildings Operations (OBO).
PAGE 2
Rigid Conduit, Fittings, and Accessories – Frequently Asked Questions I'm trying to deal with a Government spec that speaks in terms of thick wall and thin wall PVC. Can you tell me what these terms mean as they relate to your products? We refer to Schedule 40 conduit as heavy wall EPC (electrical plastic conduit) and our Schedule 80 conduit as Extra Heavy Wall EPC. There is no official definition of thin wall vs. thick wall as it is relative.
PAGE 3
Rigid Conduit, Fittings, and Accessories – Frequently Asked Questions Yes, our conduit and duct is rated for 90 deg C conductors. The DB duct is not UL listed, however. The Plus 40 and Plus 80 is actually UL listed for 90 C conductors. E35297 is our UL file number. Carlon Plus 40 and Plus 80 is the product you want to use in accordance with Article 347 of the 99 NEC.
PAGE 4
Rigid Conduit, Fittings, and Accessories – Frequently Asked Questions (2) Intermediate Metal Conduit (3) Rigid Nonmetallic Conduit Suitable for the Location (4) Electrical Metallic Tubing (5) Other approved means The only Rigid Nonmetallic Conduit suitable for the location (Area of Physical Damage) is Schedule 80 Rigid Nonmetallic Conduit. In the 2002 NEC, they replaced "(3) Rigid Nonmetallic Conduit Suitable for the Location" with "(3) Schedule 80 Rigid Nonmetallic Conduit".
PAGE 5
Rigid Conduit, Fittings, and Accessories – Frequently Asked Questions and Sch. 80 conduit and fall under the UL category of conduit, not fittings) since the fittings have been UL approved to be used with both Schedule 40 and Schedule 80. Schedule 40 PVC has not necessarily been severely limited as Schedule 80 is only required in areas subject to physical damage, which is usually a limited height coming out of the ground along the exterior wall of a building (Articles 300.5 (4) and 352.
PAGE 6
Rigid Conduit, Fittings, and Accessories – Frequently Asked Questions Of course this can change depending on the type of cable you are pulling in. I also recommend you see the attached website. It has a lot of information including a calculator for determining the actual tension per pull. www.polywater.com Is your conduit the same as CPVC? No. We don't carry CPVC, which is chlorinated polyvinyl chloride.
PAGE 7
Rigid Conduit, Fittings, and Accessories – Frequently Asked Questions Can one of you tell me what the radius is on the following items - UA5AR, UA5AN ? The same radius applies as for the standard 90 and 45 degree elbows. See page 145 of the 2001 Price Guide. For the 6" elbow, the radius is 30". For the 4" elbow, the radius is 16".
PAGE 8
Rigid Conduit, Fittings, and Accessories – Frequently Asked Questions Acetonitrile - Not sure, usually anything with Acetone is bad and PVC should not be used. Dimethylformamide - Not Recommended, severe effect Methanol - Excellent, no effect Pyridine - Not Recommended, severe effect Tetrahydrofuran - Not Recommended, severe effect Toluene - Not Recommended, severe effect This is a great site for determining chemical resistance: http://www.coleparmer.com/techinfo/chemcomp.
PAGE 9
Rigid Conduit, Fittings, and Accessories – Frequently Asked Questions occur. Covering the product with a tarp doesn't hurt, but you don't have to. The worst thing that could occur is that some discoloration (aesthetic appearance), but that won't affect he integrity of the conduit. We are in the process of providing an installation in a salt-water environment. We are utilizing PVC raceways, fiberglass equipment enclosures and stainless steel hardware.
PAGE 10
Rigid Conduit, Fittings, and Accessories – Frequently Asked Questions If it is an external crush than we would refer to the UL Product Standard, UL651 Section 11, Resistance to Crush. These load requirements vary from 750 Pounds Foot to 1000 lbf for different sizes of Schedule 40 product and is 2000 lbf for all sizes of Schedule 80 product. Basically you load the conduit with this weight and the product cannot deform more than 70%. This test procedure is similar to ASTM D2412.