The International Electrotechnical Commission (IEC) provides detailed guidelines for cable tray systems under IEC 61537. This standard outlines the construction requirements, testing methods, and performance parameters for cable trays and related support systems. Hubbell Take Off Support provides the contractor, engineer, end user a completed BOM, including all related products, counts, symbol legends and information required to price a project. Don't spend the many hours required to do counts and create BOMs for projects, rely on Hubbell's take off. The work covered under this section consists of the furnishing of all necessary labor, supervision, materials, equipment, tests and services to install complete cable tray systems as shown on the drawings. Cable tray systems are defined to include, but are not limited to straight sections of. us-trations without notice. Span support criteria shall be as specified (Reference the following table): 3. The mechanical and electrical characteristics, tests, certifications, overall quality management, recommendations mentioned in this technical guide only apply to our own cable management ranges and cannot under any circumstances be transpos regulations which. Visit our Download Center to access 'Download Cable Tray' resources, including detailed manuals, CAD files, and specifications.