Box to connect underground concrete encased conduits

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anbm

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TX
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Concrete encased conduits run underground, per nec when the total turn exceeds 360 degree, a pull box is needed, for concrete encased conduit installation, what is the technical name for this pull box? concrete pull box? who will build and supply the box?
 
See article 100 definitions of handhole, and part V of article 110. Who builds and supplies is up to you. Manhole installations are more complicated due to space requirements
I have used old castle. Try a google search
 
We used quazite, as they are lightweight, easy to cut or drill. But the lip the cover sets in is easily damaged. So went back to concrete boxes with hd galv lid.
 
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