http://www.sru-lika-gospic.com/plemjanik/gigabet/5725 The NECA 102-2004 Standard for Installing Aluminum Rigid Metal Conduit (ANSI) was published in 2004, and describes installation procedures for aluminum rigid metal conduit, including aluminum RMC with a supplementary PVC coating. NECA 102 is approved as an American National Standard (ANS).

official statement

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http://biblioteka-chrzastowice.pl/marysja/4329