Copper Cable Handling and Installation
Copper cable handling and installation protects both electrical performance and physical integrity. Know the cable's listing and application-plenum, riser, or general-purpose-and keep it matched to the space. Store boxes and reels off the floor, protect ends from moisture and debris, and handle reels without dropping or dragging. During installation control pull tension, bend radius, and twist. Do not exceed the manufacturer's published tension; for four-pair horizontal cable a common planning limit is about 25 lbf (110 N), but manufacturer data governs. Avoid kinks, sharp bends, pinches, and cable dragged over edges.
Support cable with listed J-hooks or supports at the required intervals; use hook-and-loop ties rather than tight plastic ties. Keep telecom cable separated from power per code and design, and do not bundle so tightly that cables deform. Leave service loops and slack at boxes and closets, but not so much that cable is abused. Label as you pull.
Traps include pulling by the conductors, stapling cable, over-tightening ties, exceeding bend radius at a closet entrance, mixing cable categories, and assuming a Cat6 jacket makes a Cat6 link regardless of installation. Worked example: when pulling a bundle through a sleeve, pull from the reel with a swivel and monitor tension; if cable begins to flatten, stop and reduce load or add a pull point. Rule: if it looks kinked, crushed, or stretched, do not terminate it-replace it.