Transformer and loop-feed cable · 15 kV / 25 kV
Padmount cable buyers in New York
Padmount work produces a kind of cable lot that scrap pricing handles badly: many short lengths, each with a separable connector on the end, and almost none of it long enough to sell by the foot.
- New York State
- Documented lots
- Reels and cut lengths
- Buyer review
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Padmount lots are short, terminated and mixed. The cable is 15 kV or 25 kV class URD, usually aluminum with a concentric neutral, run in loops between pads. Lengths of a hundred to three hundred feet are normal, elbows and inserts are counted separately, and the whole lot is reviewed as terminations plus cable rather than as weight, because the connectors often outvalue the copper behind them.
The cable behind a padmounted transformer
A padmounted transformer is a dead-front cabinet on a concrete pad, and everything electrical about it happens at separable connectors. The primary cable comes up out of the trench through the pad opening, is cut to length in the compartment, and terminates on a load-break elbow that pushes onto a bushing well. The elbow is the interface between cable and equipment: it is where the cable shield is grounded, where the stress cone is moulded into the rubber body, and where the circuit can be opened under load with a hotstick.
The cable itself is underground residential distribution construction — XLPE insulated, 15 kV or 25 kV class at the 133% level, with a concentric copper neutral over the insulation shield and a jacket over that. Aluminum is the usual conductor because it is lighter to pull and less expensive across the thousands of feet a subdivision needs. Copper appears where an owner's standard still calls for it, in older installations, and on services where the fault duty is high.
The compartment is small, which is why elbow cable is short and sharply bent. Bending radius governs how the cable is dressed inside the pad, and a length that was made up neatly for one pad may be too short by a few feet to reach a relocated bushing. That is how usable cable becomes cut-offs.
Loop feed, radial, and why the short lengths are normal
Most padmounted systems are loop fed. Each transformer has two primary ways, one from each direction along the street, and the loop is normally open somewhere beyond it so that a fault or a planned outage can be isolated and the transformers back-fed from the other side. A third position is often fitted for a future way or a spare. In a radial arrangement there is one way only, and the transformer is fed from a single direction with no back-feed available.
That topology dictates the lengths. Pads are sited to serve a cluster of houses or a commercial lot, so the distance between adjacent pads is short — often a few hundred feet, sometimes less where a lot corner or a driveway forces them close together. A subdivision job therefore produces dozens of cable sections of a hundred to three hundred feet, each cut for a specific span, rather than a few long reels.
Add the service laterals and the picture gets more mixed: secondary cable at 600 V, direct-buried, in lengths set by the distance from the pad to the meter, plus the odd length left over from a riser at a pole. A padmount lot is a mixed low-and-medium-voltage lot by nature. Separating the 15 kV from the 600 V is the first thing a buyer does, and the second is separating cable from connectors.
Elbows and inserts are a separate value line
A separable connector is not an accessory in the sense that a cable clip is. It is a moulded EPDM body containing a semiconducting insert that controls stress at the cable end, a copper or aluminum compression lug, a probe or contact assembly, a test point and a grounding eye. A 200 A load-break elbow can break load current; a 600 A deadbreak tee cannot be operated under load and is bolted instead, because above the elbow rating the connection has to be mechanically fixed.
Used connectors cannot simply be re-issued. The rubber body takes a compression set, the grease that keeps water out of the interface migrates, and the stress control insert is damaged by any contamination that reached it. What a buyer can separate is the metal: the compression lug at the end of the cable, the probe assembly, and the cable itself. Where a connector is new in its box, with the kit and the instructions, it is stock and is priced as stock.
So the practical instruction to a seller is to count the hardware before it goes in a pile. How many 200 A elbows, how many 600 A tees, how many inserts and parking stands, how many are new and boxed. Then state the cable lengths separately, with the terminations noted. The two lines are reviewed on completely different logic and a lot that mixes them gets valued at the lower one.
| Interface | Rating and operation | Where it is used |
|---|---|---|
| 200 A load-break elbow | Operable under load with a hotstick and load-break tool | Padmount transformer and switchgear connections at 15 kV and 25 kV |
| 600 A deadbreak tee | Bolted, not operated under load; higher continuous and fault current | Feeder junctions, vaults, larger transformers, sectionalising points |
| Feed-through insert | Extends a bushing position to a second connector | Where a pad or a switch has to accept an extra way |
| Parking stand | Insulated parking point for a disconnected elbow | Loop switching, temporary isolation, spare ways |
Subdivision work on Long Island and in the Hudson Valley
Long Island is the state's densest underground residential market. New subdivisions there are built underground as a matter of course, the distribution is largely 13.2 kV with 23 kV circuits in parts of the territory, and the coastal soils and high water table make jacket integrity and corrosion the deciding condition questions on any recovered cable. Storm restoration and road reconstruction on the island also move a good deal of pad-mounted equipment and the cable that feeds it.
The Hudson Valley — Westchester, Rockland, Putnam, Orange, Dutchess and Ulster — mixes new subdivision work with municipal projects, school and campus expansions, and road widening. Distribution there runs at 13.2 kV and 13.8 kV with 34.5 kV subtransmission in the rural counties. Ground conditions vary from river silt to rock, and where trenching hits rock the job uses more conduit and more short pulls, which is another reason the lengths come out mixed.
Access decides the logistics more than the tonnage does. Nothing is disconnected until the pad has been de-energised, proved dead and grounded by the owner's qualified personnel; the crew that clears the site does not pull elbows. Pads are usually in an easement behind the houses, reached through a side yard or a shared driveway, so removal is a mini-excavator and a hand cart rather than a boom truck. Cable has to be coiled by hand and carried out, and a reel that cannot be got to the trench is not much use on that job.
Specification
What a buyer needs to know about this cable
Every row below changes what a lot is worth. If the reel tag is gone, the jacket print and a cut end usually answer most of it.
Missing detail is not a problem — say what is missing and the review works from photographs.
| Cable | 15 kV or 25 kV class URD, 220 mil or 320 mil XLPE insulation at the 133% level |
|---|---|
| Conductor | 1/0 to 1000 kcmil, aluminum in most subdivision work, copper where the specification requires it |
| Neutral | Concentric copper neutral, full or one-third, applied over the insulation shield |
| Interface | 200 A load-break elbows, or 600 A deadbreak tees where the current or fault duty requires them |
| Loop length | Commonly a few hundred feet between adjacent pads, and shorter across a driveway or a lot corner |
| Accessories | Inserts, parking stands, junctions, caps, hold-down bails and animal guards |
| Standard | IEEE 386 separable insulated connector systems; AEIC CS8 for the cable |
| Condition signals | Elbow bodies cracked or contaminated, grease dried out, jacket ring cuts at the elbow, water in the strands |
Constructions
Padmount lots we review
What comes off a padmount job depends on whether the pad was new, relocated, or rebuilt after a fault.
Loop sections between pads
Short primary runs cut for a specific span, usually with an elbow or a cut end at each termination point.
Radial services
Single-way feeds to a transformer or a customer, often the shortest lengths on the job and the least likely to be reusable.
Elbow and insert sets
Counted, identified by rating and condition, and priced apart from the cable. New boxed stock is the valuable part of this line.
25 kV class cable
320 mil construction from 23 kV and 27.6 kV systems, thicker and heavier than the 15 kV cable most crews are used to.
Spare and over-ordered reels
Full or part reels left from a subdivision close-out. These are the only pieces in a padmount lot that are still cable in the ordinary sense.
Relocation cut-outs
Cable pulled when a pad moves for road work or a lot redevelopment. Lengths are unpredictable and the terminations are usually still fitted.
New York
Padmount cable in the New York market
Underground residential distribution is the default for new residential construction downstate, and the padmounted transformer is its standard equipment. Every subdivision, every commercial pad site and every municipal lot improvement produces the same material: short primary sections, a quantity of secondary cable, and a box of connectors that were either used or left over.
The surplus arrives in two distinct forms. Close-out surplus is clean and often still on reels, because a contractor ordered more than the job used. Removal material is short, terminated and dirty, and comes from relocations, storm repairs and rebuilds. They should be enquired about separately, because they are priced on completely different grounds.
What helps a New York lot move
- How many primary lengths, and the length of each, rather than a total
- Conductor size and material — 1/0 aluminum and 500 kcmil copper behave very differently in a lot
- Connector count by rating, and which items are new in the box
- Whether the cable came from a new installation or was pulled from service
- Site access: whether a vehicle can reach the pad or the material has to be carried out
Seller questions
Questions sellers ask
Why are the cable lengths from a padmount job so short?
Because the pads are close together. A loop-fed subdivision places transformers to serve a cluster of houses, so the span between adjacent pads is often only a few hundred feet. Each section is cut to that span, terminated at both ends, and none of it is a factory reel length.
Can used load-break elbows be reused?
Rarely as connectors. The rubber body takes a compression set in service and the stress-control insert is damaged by any contamination that reaches the interface, so a used elbow cannot be certified by inspection. The recoverable value is in the compression lug, the probe and the cable end; new boxed connectors are the part that keeps its value.
What is the difference between 200 A and 600 A connectors?
A 200 A elbow is a load-break device: it can open and close load current with a hotstick and the correct tool. A 600 A connector is a deadbreak design that is bolted and is not operated under load; it exists because above 200 A the connection has to be mechanically fixed. The choice is set by continuous current and fault duty, not by preference.
Does the neutral matter on padmount cable?
It does. A full concentric neutral carries as much copper as the phase conductor, and a one-third neutral carries a fraction of it. Two reels of the same phase size can therefore differ materially in metal content, and the neutral count is normally printed on the jacket.
Do you take secondary cable from the same job?
Yes, but it is reviewed as a separate line. Secondary cable at 600 V direct-buried is a different product with a different value basis, and mixing it into a medium-voltage lot lowers the price of both. Count it separately and say what size and insulation it is.
Keep reading
Related pages
- URD cable buyersThe construction underneath padmount work
- Medium-voltage cable buyersThe wider 5 kV to 35 kV band
- Switchgear cable buyersWhere 600 A interfaces usually live
- Splice kit and accessory buyersConnectors, kits and terminations
- Riser cable buyersWhere the loop comes back above ground
- USE-2 cable buyersDirect-burial secondary and service cable
City pages
Where this turns up in New York
Next step
Send the lot details
Include the storage city, how it is stored and what can reach it. If you have photographs of reel tags or jacket print, send them with the enquiry.
Send the lot
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Prefer to talk? 614-715-3047 · saleselectricalbuyers@gmail.com