Power Cable Pulling: FRICTION_COEFFICIENT
Power cable pulling tension limits, sidewall bearing pressure limits, friction coefficients, jam ratio thresholds, minimum bend radius multipliers, and NEC conduit fill limits. Covers copper (K=0.008) and aluminum (K=0.006) max tension by AWG/kcmil per ICEA P-79-561 / IEEE 1185-2019; SWBP limits for XLPE, EPR, PVC, armored, and lead-sheathed cables; COF by conduit type (steel/PVC/HDPE/FRP) and lubrication condition; jam ratio safe zones (danger: 2.7–3.1); NEC 300.34 bend radius multipliers.
| parameter type | record id | conduit type | insulation type | lubricant type | notes | value max | value min | value typical |
|---|---|---|---|---|---|---|---|---|
| FRICTION_COEFFICIENT | COF_DRY_PVC_CONDUIT | PVC_conduit | any | dry | PVC conduit without lubricant | 0.5 | 0.35 | 0.45 |
| FRICTION_COEFFICIENT | COF_DRY_STEEL_CONDUIT | steel_conduit | any | dry | Rigid galvanized steel (GRC/IMC) conduit, no lubricant; use 0.5 as conservative default | 0.6 | 0.4 | 0.5 |
| FRICTION_COEFFICIENT | COF_FIBERGLASS_DUCT | fiberglass_duct | any | polymer_compound | Fiberglass reinforced plastic (FRP) duct with lubricant | 0.2 | 0.1 | 0.15 |
This is a sample. Search the full power cable pulling dataset and 300+ more by creating a free account and accessing the database.
Get started for FREE