Civil Engineering Reference
In-Depth Information
2
To allow the Manufacturer to perform the design function properly, the
Purchaser should provide the following information in the design
specifi cations.
The structure confi guration should be made clear to the Manufacturer.
Structures can be either single- or multipole. The information should
include the pole heights above ground, pole embedment depths, and the
location of all wire and equipment attachments. Splices may be necessary
as a result of weight or length limitations. If the pole is to be guyed, the
location, size, and material of the guy wires at both the pole attachment
point and at the groundline should be supplied. Terrain features can
sometimes result in long guy wires. Providing this information is best and
most clearly communicated with a drawing.
The magnitude and direction of all the loads imposed on the structure
should be provided. These loads should comply with the requirements of
the National Electrical Safety Code (ANSI 2007) and other applicable codes.
Other wind and ice loads required by the Purchaser, and the dead weight
loads of any attached equipment, should also be communicated. A load tree
or load table in LVT (Longitudinal /Vertical /Transverse) format is the
preferred method of supplying the load data. A detailed discussion of the
types of design loads to be considered is presented in Chapter 4.
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