Empty reels from data-centre construction

The most cable-dense buildings there are

A data centre is a building designed around power and connectivity. It takes in large amounts of electricity through its own substation, distributes it through switchgear, transformers and backup generators to rows of equipment, and connects that equipment with fibre and copper cable. Every stage uses cable, and a large campus uses it in volumes few other projects approach. In the Philadelphia region, the clearest example is in Falls Township, Bucks County. WHYY reported in June 2025 that Amazon planned to invest at least $20 billion in data centres in Pennsylvania, including a campus at the Keystone Trade Center, previously the site of one of the world's largest steel mills, creating thousands of construction jobs. The Philadelphia Inquirer reported in August 2026 that the Falls Township project was the closest to completion of the township's data-centre projects.

Reels from every phase

Data-centre construction leaves reels in waves:

1. Site power. Medium- and high-voltage cable from the utility connection to the on-site substation, on very large wooden, bolted and steel reels.
2. Building power. Feeders from switchgear to distribution, on 48- to 84-inch reels in large numbers.
3. Equipment power. Branch circuits to rows of racks, on mid-size reels and spools.
4. Backup systems. Generator and battery cable, often heavy, on large reels.
5. Network. Fibre trunk and distribution cable on wide plywood reels, and copper on smaller ones.
6. Building services. Lighting, controls, security and fire alarm wiring, on small spools.

Each phase involves different contractors, and their reel piles build up in different parts of the site.

Returnables on data-centre sites

Large cable for the site's power systems often comes on returnable steel reels or stencilled wooden reels. The electrical contractor that bought the cable is credited when they go back. On a site this large, returnables are easy to lose in a general pile, so every pickup starts by setting them aside and listing them by maker and number.

Phased clear-outs

Data-centre sites are built in phases and often in several buildings at once. Rather than one clear-out at the end, the reel piles are best cleared as each phase finishes: large reels after site power, mid-size reels after building power, spools and fibre reels during fit-out. That keeps laydown space free and stops reels weathering through a winter. See clearing reels off a job site and large loads.

Site rules

Data-centre construction sites are strictly controlled: badged access, inducted drivers, booked delivery slots, set truck routes and high-visibility clothing. Give the procedure, the gate and the contractor contact in the request. Trucks are booked into the site's delivery system like any other vehicle.

What happens to the reels

Sound one-way reels go back into use: contractors and rewinders want large reels in matched sets, and data-centre sites produce exactly that. Fibre reels in good condition are wanted for rewinding and furniture. Damaged reels are recycled for wood and steel. Returnables go back to their makers through the contractor.

From substation to server

Power reaches a large data centre at transmission or sub-transmission voltage and passes through an on-site substation. Medium-voltage cable runs from there to unit substations and transformers around the campus. Low-voltage switchgear and busway feed uninterruptible power supply systems, batteries and power distribution units, and finally whips and power cords run to every rack. Generators, paralleling switchgear and fuel systems provide backup. Each stage uses cable of a different size and type, and each stage happens at a different point in the schedule.

Structured cabling and fibre trunks

Inside the data halls, network contractors install fibre trunks with multi-fibre connectors, copper patching, cable trays and ladder racks. Fibre often arrives on plywood reels that are light, clean and easy to reuse; copper Category cable arrives in boxes or on small reels. The volume of these small reels is enormous, and keeping them separate from the heavy power drums makes the pickup faster.

Commissioning and turnover

Before a data centre goes live, it goes through staged commissioning: equipment is started, loaded with test banks, and run through failure scenarios. During commissioning, the electrical contractor is finishing terminations and clearing the site, and the reel laydown yard is usually being emptied to make room. That is often the best time for a large collection. Afterwards, the campus enters operation, and further phases repeat the cycle.

Security and escorts

Operational data centres have strict physical security: badges, escorts, vehicle checks. We always collect from outside the secure perimeter.

Cooling plants and mechanical cable

Chillers, cooling towers, pumps, computer-room air handlers and, increasingly, liquid cooling distribution units each need power and controls. Mechanical contractors' electricians pull variable-frequency drive cable, shielded instrumentation and heavy feeders to rooftop and yard equipment. Those reels arrive alongside the mechanical equipment and are frequently left in the mechanical yard, separate from the main electrical laydown. When you request a pickup, mention both yards.

Adjacent substations and transmission

Utility substation and transmission work for new campuses is usually done by the utility's own contractors, with returnable reels.

Questions

Can you handle the volume from a large campus?

Yes, over several visits and phases. Tell us the expected volume and timing early.

Do you work for the developer or the contractors?

For whoever holds the reels, usually each electrical or network contractor, with the site's agreement.