Wall duct steel enclosed electrical raceway is an economical, flexible, UL listed alternative to conduit systems for enclosure of wiring to medical diagnostic machines. Its primary advantage over conduit is its complete lay-in feature. Wall duct comes with continuous covers so cables can be installed and later accessed and changed, by simply removing all of the covers. This is especially important for medical diagnostic facilities considering the large Dia connectors that are often pre-terminated onto the high voltage power cables.