Cable pulling surplus buyers in New York

The cable that was pulled and never terminated

Every so often a cable is installed and then the job stops. A route is abandoned, a scope is deferred, a section is pulled and left in duct while a decision is made, or a length is pulled for training or proving and set aside. It is the most valuable category of pulling surplus because it is a full manufactured length, and it is also the most conditional.

The question a buyer has to answer is whether that cable is still fit for service at its rated voltage. It has been exposed to a pulling tension, to sidewall pressure on every bend, and to whatever storage it had afterwards. If the pull was recorded and stayed inside the limits in the manufacturer's installation instructions, the cable is usually recoverable. If nobody knows, it is a cable of unknown history, and unknown history at medium or high voltage is priced accordingly.

Physical evidence still matters. A jacket scuffed through to the metallic screen, a sheath with a deep gouge, a coil stored below the minimum bend radius or a cable left with unsealed ends will remove it from the reusable category regardless of what the log says.

Tension and sidewall pressure: the record that decides reuse

Two numbers govern whether a pulled cable survived the pull. The first is pulling tension, which must stay below the limit the manufacturer sets for the conductor and, on larger cables, below the limit set by the pulling eye or grip. The second is sidewall pressure at bends, the force the cable exerts on the inside of a bend while under tension; it rises steeply with tension, falls with a larger bend radius, and is the usual cause of invisible damage in a pull that looked fine.

A pulling log records tension against distance, and often the calculated sidewall pressure at each bend. Where a pull was recorded and stayed inside limits, the cable's history is documented. Where there is no log, the cable is not necessarily bad, but the buyer is being asked to trust an absence of evidence.

There is also the jam ratio, the relationship between cable diameter and duct bore, which predicts whether three cables in one duct will cross and jam. A pull that jammed and was dragged free has been subjected to forces nobody measured, and that is exactly the kind of thing a log would have shown.

• Pulling log with tension against distance, signed and dated
• Calculated sidewall pressure at each bend, or the bend radii used
• Duct size and configuration, for a three-phase pull in one bore
• Jacket and sheath inspection notes, with photographs of any abrasion
• How the cable was stored afterwards, and whether the ends stayed sealed

Pulling equipment is a separate valuation

Rope is the clearest case. A pulling rope is a wear item of known construction, usually a double-braided synthetic, and it is retired on inspection: glazing, flat spots, sheath damage, and the number of pulls it has done. A rope with a clean history and a recorded length has a resale value; a rope with a glazed jacket and an unknown history is a consumable. Keeping the two apart is the whole of the valuation.

Grips are sized, not generic. A wire mesh grip that fits one cable diameter will not fit another, so grips are worth selling as a matched set with their sizes marked. Rollers are valued on frame condition and on whether the mandrel still turns freely. Lubricant is valued on container condition and on storage: it has a shelf life and it does not enjoy freezing, which matters in a New York yard.

Pulling eyes, swivels and sheaves sit in between: durable, identifiable by size and rating, and worth more as a set than as individual pieces.

Assembling a pulling surplus for review

The most useful thing a seller can do is keep the cable records with the cable. A drum surplus with its reel tag, a tail with a stated length and voltage class, and an unterminated length with its pulling log are three assets. The same three items with no paper are a drum of cable, a length of cable and a length of cable, and they will be priced at the low end of the range for exactly that reason.

Second, keep the equipment out of the cable pile. Rope coiled around a reel flange, grips thrown in a bucket with lugs and a can of lubricant is the normal state of a laydown yard and the worst state for valuation, because each item has to be extracted before it can be assessed.

Third, be straight about what the cable is and what was done to it. A seller who says a length was pulled and never terminated, and that no pulling record exists, gets a clear answer. A seller who presents it as unused drum stock gets a dispute at collection, which costs everybody a day.