Transcription of Chapter 14 - Duct and Conduit - plastic pipe
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Chapter 14 14 - 1 Duct and Conduit 2021 The Plastics Pipe Institute, Inc. - PPI Handbook of PE Pipe Chapter 14 Duct and Conduit 1 Introduction This Chapter provides detailed information on the applications, features, and benefits, material, material selection, and installation of high density polyethylene (HDPE) Conduit and duct for direct buried or innerduct applications. HDPE Conduit provides a mechanically protected pathway that promotes an easy installation and replacement of communication and power cables, as well as improves overall system reliability. This Chapter provides sections covering: Conduit History Industry Terminology Standards and Specifications Applications Product Offerings Material Selection Design Conduit Installation Cable Installation within Conduit Joining Methods Specialty Applications Glossary of Common Terms Note that this Chapter does not address the safety aspects of handling and installing Conduit or cable.
thermoplastics. Beginning in the 1960s, the two primary thermoplastic materials used in extrusion, the process used to manufacture conduit, have been HDPE and PVC (polyvinylchloride). The industry experienced a significant increase in demand for HDPE conduit when telephone companies sought to add capacity in major metropolitan areas by removing
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