Final Pulling Tension
–
continuous route
Manufacturer Limit
–
governing pull limit
Tension Utilisation
–
maximum route value
Max Sidewall Pressure
–
bend exit tension / radius
Overall
–
tension + bend + SWP checks
Continuous Pull Route
| # | Route Segment | Type | Length m | Angle ° | Radius m | μ | Tension In N | Segment Effect N | Cumulative Out N | Out kN | % Limit | SWP N/m | Status |
|---|
Tension Profile
Engineering Checks
| Calculated cable weight force | – | N/m |
| Conductor pull limit (area × stress) | – | N |
| Governing pull limit | – | N |
| Manufacturer minimum bend radius | – | m |
| Smallest route bend radius | – | m |
| Bend radius check | – | |
| Maximum sidewall pressure | – | N/m |
| Overall continuous-pull result | – |
Calculation Basis
Straight / inclined: Tout = Tin + wL(sin θ + μ cos θ)
Bend / capstan: Tout = Tin × eμθ, θ in radians
Vertical rise: Tout = Tin + wL
Sidewall pressure: SWP = Tout / R
Governing pull limit: lower of conductor stress limit and manufacturer maximum pulling tension
Friction coefficients, pulling attachment, bend radii, sidewall-pressure limit and all cable manufacturer constraints must be confirmed for the actual installation before construction.
References
[KEI-1] KEI Industries, 2 × 1C Aluminium Conductor XLPE Insulated & PVC Sheathed Feeder – Duplex Cable 1500 V DC to EN 50618 & AS/NZS 5000.1. Manufacturer cable construction and 400 mm² technical data.
https://www.kei-ind.com/wp-content/uploads/2018/04/solar_cable_Catalogue.pdf
https://www.kei-ind.com/wp-content/uploads/2018/04/solar_cable_Catalogue.pdf
[KEI-2] KEI Industries, Solar Cable Catalogue – Mechanical Features. Minimum bending radius = 4 × cable diameter; safe pulling force = 50 N/mm².
https://www.kei-ind.com/wp-content/uploads/2018/04/KEI-Solar-Cable-Catalogue.pdf
https://www.kei-ind.com/wp-content/uploads/2018/04/KEI-Solar-Cable-Catalogue.pdf
[R1] IEEE 1185-2019, IEEE Recommended Practice for Cable Installation in Generating Stations and Industrial Facilities.
https://standards.ieee.org/ieee/1185/6194/
https://standards.ieee.org/ieee/1185/6194/
[R2] Southwire, Power Cable Installation Guide, used as a general cross-check for pulling tension, capstan/bend and sidewall-pressure methodology.
https://www.southwire.com/medias/Power-Cable-Installation-Guide-Southwire.pdf
https://www.southwire.com/medias/Power-Cable-Installation-Guide-Southwire.pdf
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