Pathway and Space Preparation
Pathway and space preparation starts with a survey, not a pull. Walk the route and identify every pathway: conduit, tray, J-hooks, sleeves, raceways, ceiling voids, floor ducts, and closet entrances. Confirm capacity for the cable quantity and type, maintainable access, bend-radius room, support points, and separation from power. Check telecommunications spaces-MDF/IDF, equipment rooms, and closets-for access, lighting, power, grounding/bonding, HVAC, and room for racks and future growth. Firestopping and penetration protection must be planned before cable is installed, not after.
Traps in questions include planning only for today's cable count, ignoring sharp edges or burrs, overfilling conduit, supporting cable from ceiling grid or pipes, running telecom cable in the same raceway as power without required separation, and leaving penetrations unsealed. Another common trap is assuming a pathway is usable because it exists; it must be accessible, sized, and suitable.
Worked example: if a proposed conduit is already partly filled, do not guess that a few more cables will fit. Calculate fill using the applicable code and manufacturer guidance; if the result is marginal or exceeds limits, add a pathway or upsize. Rule of thumb: install pathway for the cable you have plus reasonable future capacity, and never use cable as a structural support.