Refinery turnaround cable buyer, Lima

Cable that has been through a unit, not a warehouse

Cable pulled during a refinery turnaround is not shelf stock with a shorter tail. It has run for years in a tray above a process unit, in radiant heat that drives plasticizer out of a jacket and leaves it hard and close to brittle, and in air that carries hydrocarbon vapor, caustic wash and steam. A tray cable that still prints TC-ER on the jacket is not automatically a tray cable that still performs.

Refinery work is scheduled and short. A unit comes down, the electrical contractor strips the tray, and the cable lands in a bin or on the ground beside the pipe rack within days. That pace shapes everything about the lot: hundreds of short pulls, several vintages of jacket compound, sizes mixed in the same container, and terminations cut off at both ends.

What the bins actually contain

Instrument home runs dominate the count, and they dominate it in feet rather than in weight. They are small — 16 and 18 AWG, twisted pairs, an individual shield over each pair and an overall shield, a tinned copper drain wire. A single run is worth almost nothing; several thousand feet of it in one gaylord is a different conversation.

Around those pairs sits the rest of a turnaround: 600 V tray cable in 14 through 10 AWG, thermocouple extension wire in its own color code, and the occasional feeder pulled out of a switchrack. Some of the material never went in at all. Reels issued to the turnaround and returned unopened are factory wrapped with legible print and full lengths, and they are reviewed on a completely different basis from anything that hung in a tray.

• Tray cable, 14–10 AWG, cut at both terminations
• Instrument pairs, shielded, with drain wire
• Thermocouple extension, color-coded, often unmarked
• 600 V feeder and switchrack pulls, short lengths
• Unissued reels from the turnaround store, still wrapped

Condition, permits and the release trail

Contamination is the first question, not copper content. Cable that has been in hydrocarbon service carries residue on the jacket, and residue decides how a load can be stored, handled and moved. Material that the contractor wiped and segregated by circuit is straightforward to review. Material dragged through an oily sump and coiled wet is a cleaning problem before it is a cable problem.

Documentation follows the permit. The circuit was cleared and locked out, and the material was released by the refinery's own authority, usually stores or procurement rather than the crew that pulled it. A removal record naming the unit, the circuit and an approximate length is worth more than a photograph of a pile, because it tells the next reader what the cable was doing before it became scrap.

How a review and pickup run inside the gate

Review starts with a walk of the laydown area and a sample from each container. Two feet cut from three or four pulls shows conductor, strand count, shield type and jacket print, and that is enough to describe the lot in writing. Nothing moves before those written terms exist.

Pickup is a scheduling problem more than a freight problem. The compound is fenced and gate-controlled, visitors are escorted, and a flatbed has to fit a window that does not collide with a unit start-up or a shift change. The site loads with its own equipment or a rented forklift, weights come off the gate scale, and the paperwork leaves with the load rather than following it.