Installation Guide

PRIMUS WIND POWER DOCUMENT #0070 REV C
PRIMUS WIND POWER Page 8 of 26
2/4/05
Use the following table for Pipe / Tubing wall thickness guidelines:
Maximum
Wind Speed
84 mph.
96 mph.
120 mph.
Recommended
Wall Thickness
.065 inch (1.65 mm)
.090 inch (2.3 mm)
.140 inch (3.6 mm)
Pipe
Schedule
Tubing
Schedule 20
Schedule 40 *UL-Certified
Although the design of this tower kit will allow different wall thicknesses of pipe to be used in the
same tower, we recommend that the same thickness pipe be used for both the upper and lower
sections.
Pieces of Tubing Needed:
(1) 24 foot (7.3 M) length of pipe for tower (wall thickness selected for local conditions)
(1) 21 foot (6.4 M) length of pipe for tower (wall thickness selected for local conditions)
(1) 6 foot (1.8 M) length of tubing for tower base (.065 in. wall thickness)
(1) 21 foot (6.4 M) length of tubing for gin pole (.065 in. wall thickness)
****In some areas there are subsidies and grants available for installing renewable energy
systems. If you live in one of these areas and need an engineering analysis for this tower assembly
to satisfy your local authorities please contact us. We have an engineering analysis available for
this tower kit.
Step 3: Tower, Base and Anchor Layout
This tower kit should be assembled on a calm a day (no wind). The tower base and anchors should
be laid out as described in the drawing below. As a time saver the 24-foot length of tower pipe can
be used as a measuring stick between the tower base and anchor locations. Insure that the
installation area is free from obstruction, excess personnel and vehicles before
attempting to raise
the tower. Also insure that no power lines will interfere with installation. Power lines are an
extremely dangerous hazard.
The tower will be assembled laying on the ground and then tilted up into position.
If the tower is being erected on the side of a hill it will be much easier to raise the tower if it is
assembled to the uphill side of the base, as it will already be part way up once it is assembled. In
this case the two “side” anchors should be at the same height or elevation on the hill. The two
remaining anchors should be directly uphill and downhill from the tower base. There should be no
more than 5 feet of difference between the uphill and downhill anchor. If this difference exists, you
may want to relocate your installation to a different site.