Electrical wire buyers across Metro Knoxville
Knoxville, Maryville, Oak Ridge and Sevierville, where a university, a federal utility and a cleanup reservation produce three very different kinds of cable in one market.
Painted reels lined up along a substation fence
Send us your reel list
Six details are enough for a first review: what the cable is, the metal, the size, the footage or reel count, the condition and where it sits. Photographs can follow by text or email. There is no fee and no obligation, and nothing moves until written terms are agreed.
The Knoxville market can be drawn as a triangle: the university and the city center at one corner, the Tennessee Valley Authority headquarters at another, and the Oak Ridge reservation at the third. Each corner buys cable differently. The university fits out laboratories and classrooms, the utility maintains a transmission system, and the reservation runs cleanup programs that retire whole buildings at a time.
That mix makes this the most technical market in the state. One pickup can carry instrumentation cable from a laboratory, tray cable from a substation rebuild and MC from a dormitory renovation, and none of those should be priced the same way. We ask for the tag on each group and keep the groups apart through the scale. Sorting is most of the work, and it is the part sellers usually skip.
Instrumentation cable is the one category where a single missing tag can halve the value of a reel.
Coverage at a glance
- Cities covered
- Four
- Counties
- Knox, Blount, Anderson, Sevier
- Reservation
- ORNL, Y-12 and ETTP
- Cable families
- Control pairs to 500 kV
Cleanup work at ORNL, Y-12 and ETTP
Buildings retired whole, cable cut to length
The Oak Ridge reservation holds the national laboratory, the Y-12 National Security Complex and the East Tennessee Technology Park on the former K-25 site. Cleanup there retires buildings rather than machines, so cable leaves in a form that surprises most sellers: no reels, no footage, just coils cut at the panel and pulled through conduit. The metal is still there, and much of the cable is still good. Conduit runs are short, which is why the coils are short as well.
Instrumentation is the material worth slowing down for. Shielded pairs, drain wires, thermocouple extension and low-level signal cable look like control cable to a scrappy and nothing like it to a buyer. The pair count, the shield and the jacket compound decide the category. Where the tag is gone, the printing on the jacket usually settles it, so photograph the jacket before anything is cut back. One photographed label can settle a whole pallet.
Blount County and Sevier County complete the market. Maryville carries the DENSO plant and the automotive suppliers around it, where the lots are tray, control and VFD cable from line work. Sevier County builds for visitors, so the lots there are MC, THHN and SER from hotels and rental cabins. The two are close enough to share a truck and different enough to need separate tickets.
- Cut coils of feeder and branch cable from demolition
- Instrumentation cable with shield and drain wire
- Tray and control cable from supplier plants
- MC and SER from hospitality construction
TVA headquarters and the 161 kV system
Substation rebuilds and line work in the eastern division
TVA keeps its headquarters in Knoxville and operates the bulk system from there, with 500 kV and 161 kV transmission and 69 kV subtransmission across the region. For a buying desk that means substation material more than line material: bus wire, grounding grid conductor, control cable and the shielded power cable that runs from a transformer to a switchgear building. Bus and grid are the two items most often overlooked in a switchyard inventory.
A decommissioned substation is retired in a sequence. The yard is isolated, the bus is cut out, the grid is lifted, and the control house is stripped last. Every one of those steps produces a different grade, and mixing them turns four priced lots into one weighed lot. If the yard is coming out, ask for the removal to be photographed bay by bay.
Line work is the other half. Reconductoring puts 500 kV conductor and OPGW on reels, and the OPGW is usually the more interesting item because it carries the strand, the fittings and the splice boxes with it. Conductor footage is often marked on the reel and confirmed by the drum weight, and a reel that has been partly respooled rarely matches its tag. Drum weight is the check we trust when the tag is doubtful.
- Bus wire and grounding grid conductor
- 161 kV shielded cable and terminations
- 500 kV conductor from reconductor jobs
- OPGW with strand, fittings and splice boxes
Cities covered in this market
Each page carries the county, the local industry and the cable families that move there.
Cable families reviewed here
- Tray cableTray-rated multi-conductor cable, TC and TC-ER
- Control cableMulti-conductor cable for motor control and plant interlocks
- THHN and THWN wire600 V nylon-jacketed building wire, copper or aluminum
- XHHW and XHHW-2 wire600 V cross-linked polyethylene wire for feeders and wet locations
- Instrumentation cable300 V twisted pair and triad cable for process signals
- MC and metal-clad cableInterlocked armor cable for branch circuits and feeders
- Data centre cableTray cable, MV feeder and bus left from Nashville and Memphis fit-outs.
- Welding cableFine-stranded flexible cable for welding leads
Transmission, substation and plant cable
- 161 kV cableHeavy shielded cable at transmission voltage
- Decommissioned substation cableBus, control, power and ground cable from retired stations
- Substation bus wireFlexible bus, jumper conductor and aluminum tube bus
- OPGW cableOptical ground wire with fiber inside a shield conductor
- Grounding grid conductorBare copper and copper-clad steel for station grids
- 500 kV conductorBundled large ACSR from the transmission backbone
Questions from sellers in the Knoxville metro
What cable comes out of a building demolished on the reservation?
Feeders pulled from conduit, branch circuit wire, tray runs cut at the supports, control cable from mechanical rooms and instrumentation from laboratories. It arrives as coils rather than reels, and the length of each coil is usually unknown. We price on conductor size, insulation type and condition, and we expect the lot to need sorting before it is weighed. Coils that have been dragged through a demolition are inspected one by one.
How do you tell instrumentation cable from control cable?
Pair count, shield and jacket. Instrumentation cable is usually twisted pairs with an overall shield and a drain wire, and often a jacket rated for low smoke. Control cable is more likely to be multi-conductor with a numbered core and no pair twist. The printing on the jacket settles it when the tag is missing, which is common on pulled cable. Print a foot of jacket and the question usually answers itself.
Do you buy OPGW that was cut out of a line?
Yes, and we buy it with the fittings if they are still on it. OPGW is priced on strand type, fiber count and length, and cut sections are normal after a rebuild. Splice boxes, dead ends and suspension clamps travel with the reel and are worth keeping together. A length under a few hundred feet is usually priced as salvage rather than as line stock. Fiber count is the number that moves the price most.
Send us your reel list
Six details are enough for a first review: what the cable is, the metal, the size, the footage or reel count, the condition and where it sits. Photographs can follow by text or email. There is no fee and no obligation, and nothing moves until written terms are agreed.
Cable from a Knoxville rebuild?
Send the building or bay number, the cable schedule and the photographs, and we will price the groups.
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