Feeder pull-tension records before cable termination

Direct answer

Before feeder conductors are terminated, record the feeder ID, source and load, approved route, cable or conductor type, size, material, insulation, voltage rating, reel or cut numbers, raceway or tray path, pull boxes, bends, calculated maximum pulling tension, sidewall-pressure check, clearance or jam-risk check where applicable, pull direction, pulling device rating, grip or pulling eye, rope, swivel, lubricant, crew, start and finish time, measured peak tension, stops or spikes, visible cable condition, required test status, open exceptions, and release decision.

The record belongs before termination because the cable is still inspectable and the pull crew's facts are still fresh. Once conductors are cut, dressed, landed, torqued, and hidden in gear, a damaged jacket, tension spike, wrong reel, unrecorded route change, or exceeded pulling limit becomes a much harder dispute.

Use this field note as documentation guidance only. The adopted code, AHJ, engineer, project specifications, cable manufacturer, pulling equipment manufacturer, qualified electrician, commissioning plan, test procedure, lockout plan, and site safety plan control the actual pull, inspection, testing, repair, and termination release.

Do not let the pull disappear into the lugs

Large feeders can look successful at the end of the pull even when the record is weak. The conductors may be in the room, the ends may be long enough, and the crew may be ready to terminate. That does not prove the pull stayed within the cable limit, that the route matched the approved plan, or that a hard stop did not damage the jacket.

The termination crew inherits every hidden assumption. If the record does not show which reel was pulled, which route was used, which bend created the controlling sidewall-pressure risk, which direction was chosen, which lubricant was used, and what the peak tension was, the person landing the conductors is being asked to accept an undocumented installation.

Treat the pull record as a handoff. It does not approve the electrical design or replace required testing. It preserves the facts needed before terminations make the evidence harder to see.

Start with feeder identity and route basis

The first page should identify the feeder in a way the drawings, panel schedule, cable schedule, and termination tags all recognize. Record source equipment, load equipment, feeder tag, circuit number, drawing sheet, revision, cable schedule line, raceway number, tray segment, duct bank, pull box sequence, and any field route change.

Then record the cable basis. Capture conductor size, material, insulation type, voltage rating, number of conductors, parallel set count, equipment grounding conductor, outer diameter where it affects jamming or clearance, approximate weight where it affects tension, reel number, cut length, manufacturer, and any manufacturer pull limit used by the crew.

If the route used in the calculation is not the route used in the field, write the exception before termination. A changed pull box, added bend, shorter sweep, temporary detour, blocked duct, or reversed pull direction can change both pulling tension and sidewall pressure.

Record the calculated limits before the pull starts

A pull-tension record should include the limit that controlled the pull, not just the final meter reading. Record maximum allowable conductor tension, pulling-device rating, rope rating, grip or pulling-eye rating, swivel rating, sheave and support ratings where applicable, and the most restrictive value the crew agreed not to exceed.

For bends, preserve the sidewall-pressure check. Sidewall pressure is tied to tension leaving a bend and bend radius, and it often controls long or multi-bend pulls before the conductor tension limit does. The record should identify the controlling bend or bends, inside radius or sweep basis, calculated sidewall pressure, and accepted limit.

Where three single conductors share a raceway, record the clearance or jam-risk check when the route, fill, or cable diameter makes it relevant. A pull can stay below the straight-pull tension limit and still become unsafe or damaging if the cable jams in a bend.

Pull direction, setup, and lubricant are part of the evidence

The pull setup should be documented before the first conductor moves. Record pull direction, reel end, feed end, tugger or winch location, reel stand, rollers, sheaves, entry bells, communication method, pull-box spotters, stop command, and the person watching the tension reading.

Pull direction is not a minor preference. Depending on the route, pulling through major bends earlier can materially change ending tension and sidewall pressure. If the crew reversed the planned pull direction, write why and record whether the calculation was checked for that direction.

Record lubricant as a field condition, not a vague note. Capture lubricant product, compatibility basis when required, estimated quantity, where it was applied, whether duct cleaning or mandrel proofing was completed, and any point where the pull stopped long enough that restart tension became a concern.

Measured tension needs context

A peak tension number by itself is better than silence, but it is not a complete record. The packet should say how tension was measured, where the gauge or meter was placed, whether it was within calibration or inspection date when required, who watched it, what the alarm or stop limit was, and what the peak value was.

Record abnormal events. A sudden spike, hard stop, rope jump, jammed conductor, damaged entry bell, dry duct, missing roller, radio failure, or unplanned reset should stay in the record even if the pull was eventually completed.

If no tension meter was used, do not invent a number later. Write that measured tension was not recorded, preserve the pull calculation and crew observations, and identify whether the project requires an engineer, manufacturer, owner, inspector, or commissioning reviewer to accept the missing data before termination.

Inspect and test before landing conductors

Before termination starts, inspect the cable ends and visible length at pull boxes, gear, and transition points. Look for jacket cuts, crushed spots, flat spots, abrasion, pulled shields, damaged insulation, water or mud contamination, missing phase tags, short cut length, wrong conductor, and damage near the pulling grip or pulling eye.

Record required electrical testing status separately from the pull. Depending on project requirements, that may include continuity, phasing, insulation-resistance testing, shield checks, VLF or other medium-voltage tests, or manufacturer-specific steps. The pull record should state what was completed, what remains open, and what document controls the test.

Do not let termination hide an unresolved issue. If a jacket repair, cutback, retest, re-pull, manufacturer review, or engineering direction is needed, hold the termination release until the responsible reviewer has acted.

Minimum feeder pull-tension packet

Use the project cable pull plan, commissioning form, test report, or owner QA record first. Add this packet where those forms do not connect the pull calculation, field measurement, and termination release clearly enough.

Before cable termination checklist

Run this check after the pull is complete and before conductors are cut to final length, dressed, landed, torqued, or hidden inside equipment.

• Confirm feeder ID, source, load, drawing revision, cable schedule, and route match the approved basis.
• Record cable manufacturer, reel number, cut number, conductor size, material, insulation, voltage rating, conductor count, OD, and weight where used.
• Attach the pull calculation or record the maximum allowable conductor tension, sidewall-pressure limit, controlling bend, and most restrictive pulling-system rating.
• Record pull direction, feed end, pull end, tugger/winch, reel stand, rollers, sheaves, entry bells, rope, swivel, grip or pulling eye, and spotter locations.
• Record lubricant product, approximate quantity, application points, duct cleaning or proofing status, and any restart event.
• Record measured peak tension, stop limit, meter/gauge identity, calibration or inspection status where required, and the person watching the reading.
• Write every abnormal event: tension spike, hard stop, jam, dry spot, route change, communication failure, rope issue, damaged entry protection, or pull-box problem.
• Inspect visible cable at equipment, pull boxes, and transitions before termination work starts.
• Record test status and identify any continuity, phasing, insulation-resistance, shield, or medium-voltage test that remains open.
• Write the final status: released to terminate, released with named exceptions, partial release by feeder segment, or held.

Weak and strong pull notes

Weak note: feeder pulled, ok to terminate.

That note does not identify the feeder, route, reel, cable, pulling limit, sidewall-pressure check, pull direction, setup, lubricant, measured peak tension, damage inspection, testing status, or release authority.

Stronger note: Feeder MSB-2 to ATS-2 pulled on 2026-06-09 against cable schedule E-601 revision 5 and pull plan PP-ATS-2. Three 500 kcmil copper THHN/THWN-2 phase conductors plus equipment grounding conductor pulled from pull box PB-E2 toward MSB-2 using reel R-1847 and cut C-1847-03. Route included duct bank DB-2, pull boxes PB-E4 and PB-E3, and four 90 degree sweeps. Pull calculation attached; controlling limit was sidewall pressure at the PB-E3 sweep. Tugger, rope, swivel, and basket grip ratings were checked against the stop limit. Poly-compatible lubricant applied at feed end and PB-E4. Metered peak tension recorded at 1,860 lb with no stop above the planned alarm. One short restart occurred at PB-E3 and was noted. Visible jacket check at MSB-2, ATS-2, and pull boxes found no cuts, flat spots, or abrasion. Continuity complete; insulation-resistance test remains open before final landing. Released to dress conductors in gear, but not to energize or close test record.

The stronger note works because it separates pull completion, conductor dressing, testing, termination, and energization. It also names the controlling risk instead of relying on a generic pass.

Common mistakes

The first mistake is recording only that the cable was pulled. A feeder can be physically in place and still have an undocumented exceeded limit, damaged jacket, wrong route, or missing test.

The second mistake is treating maximum conductor tension as the only limit. Pulling-device ratings, rope, grips, sheaves, supports, sidewall pressure, bend radius, clearance, and jamming risk can control the job.

The third mistake is losing the reel identity. If reels, cuts, and cable schedule lines are not tied to the feeder tags before termination, later test failures become much harder to trace.

The fourth mistake is ignoring restart events. A cable that stopped in the conduit may see a higher breakaway load than the moving pull. Record where the stop happened and what the tension meter showed.

The fifth mistake is letting termination begin while damage review or required testing is still unresolved. Dress work can continue only if the responsible procedure allows it. Final landing, torque, test closure, and energization need their own approval chain.

Questions that come up

Is a pull calculation enough if no tension meter was used? It may be accepted on some jobs and rejected on others. The record should state that measured tension was not captured, preserve the calculation, and identify who accepted that gap before termination.

Should sidewall pressure be recorded for every feeder? Record it when the project, manufacturer, engineer, route complexity, conductor size, bend count, or pull calculation makes it relevant. For long or multi-bend pulls, it is often one of the most important checks.

Can the pull record approve a damaged cable repair? No. It can document the damage, location, photos, test status, and hold. The repair path belongs to the cable manufacturer, engineer, owner, AHJ, project procedure, or other responsible authority.

Does passing an insulation-resistance test prove the pull was acceptable? No. Testing is important, but it does not replace route, tension, sidewall-pressure, reel, setup, and visible-condition evidence. Keep the test report and pull record together.

Compliance and safety limits

This field note is not an electrical design, code interpretation, cable-pulling calculation, energized-work permit, test procedure, torque procedure, repair approval, termination instruction, commissioning approval, or manufacturer instruction. The adopted code, AHJ, engineer, project specifications, cable manufacturer, pulling equipment manufacturer, qualified electrician, test agency, commissioning authority, and site safety plan control the work.

Do not use this checklist to bypass lockout, energized-work controls, PPE, confined-space requirements, underground utility precautions, lifting and rigging limits, pulling-equipment ratings, cable manufacturer limits, lubricant compatibility, inspection requirements, electrical testing, torque requirements, or approval for repair. The packet preserves the pull and release record. It does not authorize unsafe work or unapproved termination.

Sources checked

• Southwire, Power Cable Installation GuideUsed for cable installation parameters including pulling tension, sidewall pressure, clearance, jamming, and manufacturer-controlled limits.
• Southwire, Maximum Pulling Tension for Electrical ConductorsUsed for maximum conductor tension, pulling device limits, sidewall-pressure cautions, and pulling-system rating context.
• Okonite, Sidewall Pressure LimitationsUsed for sidewall pressure as radial force at bends and the relationship between bend tension and inside radius.
• Okonite, Pulling Direction and Tension Multiplying FactorUsed for pull-direction planning and the effect of bends and friction on pulling tension and sidewall pressure.
• Prysmian, Installation Pulling Tensions and Side Wall PressuresUsed for current manufacturer guidance on route complexity, friction, pulling force, rollers, lubricant, bend radius, and pull direction.
• Polywater, Cable Lubricant Application Guide for Electrical CableUsed for lubricant planning, duct inspection, pull-direction calculations, compatibility, quantity, continuous application, and bend-radius setup.
• Service Wire, Maximum Pulling TensionsUsed for pulling-eye and basket-grip tension-limit examples and warnings around device loads and simultaneous conductors.
• eCFR, 29 CFR 1926.416 General RequirementsUsed for electrical construction safety boundaries around work near energized circuits, load ratings, and damaged cords or cables.

Related guides