![]() To view Code training materials offered by this company, visit /code. These materials are provided to us by Mike Holt Enterprises in Leesburg, Fla. Splice plates shall be fastened to the outside of the cable ladder side-rails. This document is titled “NEMA VE2, Cable Tray Installation Guidelines.” CABLE TRAY E-LINE CTA GRP Series Cable Tray. When using expansion splices, it is important that the straight run be fixed permanently to its support at the approximate center be-tween expansion joints whenever possible, and that all. The length of the straight cable tray runs and the temperature differential govern the number of expansion splice plates required (see Table 1 below). This Code section gives no guidance on how to determine the need for an expansion splice plate but there is a National Electrical Manufacturer’s Association (NEMA) document available as a free download that may assist. Expansion Joint Splice Plates Expansion splice plates for Ladder or Trough are designed to allow 1-1/2 free move-ment between adjacent straight lengths. Thermal contraction and expansion It is important that thermal contraction and expansion be considered when installing cable tray systems. For the raceway to properly serve its function, it must be able to expand, as well as contract, and expansion joints provide the ability to do so. ![]() Thermal expansion is often overlooked and can be a problem without the installation of raceway expansion joints. Expansion splice plates for cable trays must be provided where necessary to compensate for thermal expansion and contraction. ![]() What does the Code require to compensate for the thermal expansion of a cable tray? See answer below.Ī. Expansion Splice Plate, Allows Expansion and Contraction of Cable Tray, For Use with 4 In Load Depth Aluminum Ladder Tray, Recommended Every 84 Ft. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |