PVC TYPE A

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INGMRS

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san jose, Costa Rica, code NEC USA
Hello,

I have a question, what are the permitted uses for Type A PVC conduit? I've been reviewing article 352, but it only refers to SCH 40 and SCH 80 pvc conduits, Type A is mentioned later in the tables in chapter 9 and in appendix C, but only there is it mentioned.

I will appreciate if somebody can tell me more about where can i use this conduit, or if this conduit has the same uses of the PVC conduit SCH 40.

Thanks in advance for your responses.

Regards,
 
According to this document type A is listed for use with concrete encasement along with type EB.

Type EB and A conduit and fittings
The Type EB and Type A rigid PVC conduit and fittings mentioned in 1.1.1 are intended for use at 50°C (122°F) and lower ambient temperatures. Type A rigid PVC conduit and fittings are intended for use with 75°C (167°F) wiring. Type A and Type EB rigid PVC conduit and fittings, where encased in concrete in trenches outside of buildings, may be used with 90°C (194°F) wiring.


Type EB (encased burial) rigid PVC conduit is intended for encasement in concrete in trenches outside of buildings. Type A rigid PVC conduit is intended for encasement in concrete in any location.
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Hv&Lv said:
I’ve used type EB a lot on the utility side, along with schedule 40 & 80 as most here have..

I don’t believe I have ever laid eyes on a stick of type A...
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Hi,

Interesting, puting in context, here in Costa Rica, before adopting the NEC 2008 as the official version of the "national electrical code", we had been using a kind of local manufactured conduit PVC, tha was adapted to the EMT connectors (i know that it is a violation, in fact, mike holt used that connection in one of his figures as an example). Now the people in Costa Rica is using more the Type A for residential (thanks to a licences otorgued by the local jurisdiction ( as exception)) but just for single family dwellings, in Multi-family dwelings or other uses is not permitted (exept its own permitted use).

Regards,
 
See the Ul white book RIGID NONMETALLIC PVC CONDUIT (DZYR)

Type A – Can be installed with its entire length in concrete in any underground location.
Type EB – can be installed with its entire length in concrete in trenches out-side of buildings.
 
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