Maximum Allowable Pulling Tension with a Pulling Eye

The equation below calculates the maximum pulling tension if a pulling eye is attached to the conductor.

IMPORTANT: Do not exceed this amount.

Tmax = KA

Where:

Tmax = Maximum pulling tension (lb)

K = 10,000 PSI for copper; 7,500 PSI for aluminum

A = Area of conductor (sq in)

Maximum Pulling Tension (Tmax) Using Pulling Eye

The following table shows Tmax for a standard single conductor (1/C) cable.

Conductor Size

Area (sq in)

Maximum Tension Per Conductor (lb)

Copper

Aluminum

#4

.03278

328

246

#2

.05213

521

391

#1/0

.08289

829

622

#4/0

.16620

1662

1247

350

.27490

2749

2062

500

.39270

3927

2945

750

.58900

5890

4418

1000

.78540

7854

5891

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