Substation, switchgear and control house cable
A control house is a small building with a large amount of cable in it. Retiring one produces the cleanest conductor on the site and the longest list of things a buyer will not take.
- Control and relay cable
- De-energised, proven dead
- Equipment out of scope
Substation work is the most procedurally careful cable we are asked about. Nothing in a switchyard moves until the switching order is complete, the isolation is proven and the utility’s own people have signed. A buyer who does not understand that gets one visit and no second one. We work to the utility’s sequence, not around it. A teardown that starts with a buyer’s truck at the gate is a teardown that is not ready.
What comes out at the end is worth the patience. A control house holds relay and control cable, instrumentation, station service and grounding conductor, often in quantities that surprise the engineer who ordered the teardown. The switchgear and transformers around it hold oil, and oil is where our interest stops. The building is small, the cable is not, and the tray runs often hold more than the drawings admit. Treat the schedule as a starting point rather than an inventory.
What we will look at
Not everything in this situation is buyable, and the honest version of the list is more useful than the sales version.
- Control and relay cable, de-energised
- Instrumentation and signal cable
- Station service and AC distribution cable
- Grounding grid conductor and jumpers
- Battery and charger cable, dry
- Spare control cable from the store
- Medium voltage cable, proven dead
What comes out of a control house and a switchyard
Inside the building: relay and control cable, usually multiconductor and often shielded, run in tray and duct; station service cable; lighting and receptacle circuits; grounding conductor bonded to the grid. Outside: grounding conductor in the yard, control cable to current and potential transformers, and the occasional spare duct run with cable pulled but never terminated. The spare runs are usually the best material on site and the least documented.
What we need from you before a control house is cleared
A switching order reference and written confirmation that the circuits are isolated, locked out and proven dead. The cable schedule or the drawings, so the sizes and types are known before anything is cut. Whether the cable is to be pulled or cut in place, since pulled lengths hold value that chopped lengths do not. The staging area, the gate and escort arrangements, and the name of the person who signs the release.
Photographs of the tray, the duct banks and the terminations help more than a list. They show whether the cable is shielded, how it is supported, and whether the insulation has been cooked by decades of warm cabinet air. A cable schedule plus a dozen frames answers most of a buyer’s questions before anyone travels.
What makes it harder: what stays out of scope and why
Oil-filled equipment is out. Transformers, oil circuit breakers, tap changers and anything with a liquid dielectric belong to a licensed disposal route, and material with a PCB history belongs to a regulated one. Capacitors, batteries, relays with hazardous components, asbestos-containing arc chutes and fire-suppression cylinders stay with the utility or its environmental contractor. None of that changes because a buyer is on site.
Conductor is in scope only when it is dead, disconnected at both ends and free of the equipment. Cable that disappears into a cabinet we are not taking stops at the cabinet. And station grounding is a design item, not just copper: a buyer will ask whether the grid stays, because removing part of it changes the installation. Where the utility wants the grid left intact, we buy the jumpers and nothing else.
Questions sellers ask
Will you take the switchgear as well as the cable?
No. Switchgear, breakers, transformers and any oil-filled apparatus are outside what we buy, and most of it needs a licensed route with its own documentation. The cable connected to that equipment becomes buyable once it is disconnected, proven dead and removed. Until then it is part of the installation.
What proves a cable is dead enough to sell?
Your switching order, your lock-out and a test at the point of work, documented by the utility or its contractor. A buyer cannot accept a panel schedule as proof. In practice the cable is sold after removal, and the removal happens under your procedure with your people or your contractor holding the isolation.
Is shielded control cable worth more than unshielded?
It is worth reviewing differently. Shielding adds a tape or drain wire and changes how the cable is stripped and what the copper recovery looks like. Shielded control cable also tends to come from higher-consequence circuits, which means the schedule exists and the sizes are knowable, and documentation is what a buyer values most.
Can we sell spare cable from the substation store?
Yes, and it is usually the simplest part of the job. Store stock is tagged, uncut and indoors, and a utility reel card gives footage that no field removal can match. Keep it separate from salvage and describe it as stock. That is a different basis, and a better one.
Send the substation, switchgear and control house cable details
A short description, the quantity, the city and the deadline is enough to start.
Or email saleselectricalbuyers@gmail.com
- No fee and no obligation to sell.
- Written lot terms before anything moves.
- Pickup scheduled around your access rules.