Page 94 - McWane Poles Sales Manual 2024

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McWane Poles, A Division of McWane Inc.
SPECIFICATIONS
2.4 Performance and Classification
A. Ductile iron poles shall be classified according to the maximum allowable tip load (minimum pole
capacity) as established by ANSI 5.1 for wood poles and as modified by the National Electric
Safety Code (NESC) for Grade B installations.
B. Ductile iron poles shall be designed to handle NESC Grade B Wood Pole equivalent design loads.
These loads are lateral tip loads and shall be applied 2 feet from the tip of the pole. The pole shall
be considered to have an embed depth of 10% of the pole length plus 2 feet.
NESC Grade B Wood Pole (ANSI 5.1) Equivalent Tip Loads (lbs)
Class 5 4 3 2 1 H1 H2 H3 H4 H5 H6
Tip Load 1235 1560 1950 2405 2925 3510 4160 4875 5655 6500 7410
2.5 Failure Mode
A. Poles shall be considered to have failed when the yield strength of the pole has been reached.
This is the point where permanent deformation has occurred. This criteria applies whether the
deformation is visible or not.
B. All poles shall be designed such that when they are loaded beyond the yield point, the pole shall
not absolutely fail (cease to be able to support significant load) by any method other than ultimate
tensile failure (fracture). This gives a predictable overload capacity for the pole. Poles shall be so
designed such that they will not encounter a buckling failure mode.
C. The failure mode shall be verified by independent testing or testing witnessed by independent
observers recognized as knowledgeable in the field of mechanical engineering.
2.6 Submittals
A. Unless noted otherwise in the Inquiry or Purchase Order, the pole manufacturer shall provide
fabrication drawings in the format shown in this document. These drawings shall include the
following information:
• Pole Description
• Hole locations
• Ground connection locations
• Nameplate location
• Overall Length
• Pole Class
• Finish Option
• Cap Option
• Hole Plug Option
• Customer Name
• Customer PO Number
• Special Instructions
• Ground line moment capacity
POL-4024 Rev. (12/1/22)