Just as with UL's requirements, this means you can't change the path of a cable tray by removing parts (like rungs) and bending. You need to instead add on fittings that not only allow for the directional change, but also maintain the cable tray's structural integrity and grounding. If you have an upcoming cable tray installation, be sure to take our simple code-compliance advice — set your project up for a passing grade from the get-go. It doesn't matter if your cable tray system was UL classified or Why the sudden change? For starters, UL does not stand behind field modified. This field modification can usually be avoided by selecting a cable tray with 12 or 18-inch rung spacing. For proper installation, design, and maintenance, adherence to international standards is essential. One of the most recognized frameworks globally is the IEC standard for. Below are 100 questions that comprehensively cover the basic definitions, material classifications, selection principles, load capacities, installation methods, fire protection requirements, corrosion treatments, and wiring techniques of cable trays, aimed at providing a detailed and comprehensive. Never dealt with cable trays, but didn't you just cut your width in half? See the notch? That's going to be installed around something So once you're around that corner, do you go back to the full width or stay with the narrower tray? I'd assume it attaches the the next piece that would flare out. Voice and data designers and installers viewed basket tray as a versatile replacement to the J-hooks and bridle rings commonly in use while offering savings of 50%–75% less than legacy aluminum ladder type trays. As demand for voice and data cabling grew and cable bundles ballooned from a handful.