Moving Switchgear With Rollers And Jacks - Siemens WL Series Instruction & Installation Manual

Type WL Low Voltage Metal-Enclosed Switchgear
Receiving, Handling & Storage
A drawing packet is provided with each lineup of switchgear.
Location of drawing packet is identified at the front top of each
switchgear section. This packet includes a general arrangement
drawing of the switchgear lineup, plus a drawing with installa-
tion and handling instructions for the equipment. A copy of this
instruction manual is included. Review this information carefully
before moving equipment.
The angle of the lift cable relative to a horizontal plane must not
be less than 45 degrees. (See Figures 2 and 3). Also note the
tension on each cable of a four cable lift at 45 degrees is 70.7%
efficient, that is, 1/4 of the total load divided by .707 will equal
the force in pounds on each cable. Lesser angles could damage
the switchgear.
Make certain the crane used is of adequate height and capacity.
A safe estimate of required crane capacity would be 4000 lbs.
(1820 kg) per vertical section for indoor equipment, and 5000
lbs. (2275 kg) per vertical section for outdoor equipment.
NOTE: A spreader bar must be used in conjunction
with the lift cables when lifting all enclosures.
Spreader bar not furnished with equipment.
Figure 3. Lifting Points (Indoor or Outdoor)
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Courtesy of NationalSwitchgear.com

Moving Switchgear with Rollers and Jacks

Moving switchgear in an obstructed area where a crane cannot
be employed can be accomplished by the use of rollers (indoor
enclosure only); however, this must be done before the wooden
shipping skid is removed. If pipes are used as rollers they should
be of sufficient diameter that they will roll with ease without
digging into the skid. In placing rollers under the skid, or remov-
ing them, it will be necessary to lift the switchgear shipping
group by either jacks or a fork lift truck.
If a fork lift truck is used to lift indoor switchgear, it must
be used with utmost caution to avoid possible damage to
switchgear, and under no circumstances are the points of
the lift contact to be other than the following:
• Indoor switchgear: Lift using the optional jacking angle
provided near the bottom at each end of the shipping group.
Outdoor switchgear: Use of a fort lift truck to handle or
move outdoor switchgear is NOT recommended. Outdoor
switchgear should be lifted only from above, using the
attachment points shown in Figure 3.