Siemens SB2 Manual De Usuario
source of approximately 250 watts output within each vertical
section to prevent condensation. Space heaters are not standard
equipment on indoor switchboards. Remove any loose packaging
or flammable materials inside the switchboard before energizing
the heat source. Lubricate any moving parts such as hinges,
shutters, etc., if storage is for an extensive period of time.
section to prevent condensation. Space heaters are not standard
equipment on indoor switchboards. Remove any loose packaging
or flammable materials inside the switchboard before energizing
the heat source. Lubricate any moving parts such as hinges,
shutters, etc., if storage is for an extensive period of time.
3.5.2 Storage – Outdoor Switchboards
It is important that outdoor switchboards are stored exactly
as described for indoor switchboards. When it is necessary to
store outdoor switchboards in an area exposed to the weather
or under humid conditions, they should be kept clean and dry
as described above. Energize the self-contained space heaters
(if provided) and make certain that louvers and vents are
uncovered to allow air to circulate and cover shipping splits
to protect from the elements. Refer to wiring diagram drawing
for space heater circuit connections. Lubricate hinges, shutters,
and other moving parts.
It is important that outdoor switchboards are stored exactly
as described for indoor switchboards. When it is necessary to
store outdoor switchboards in an area exposed to the weather
or under humid conditions, they should be kept clean and dry
as described above. Energize the self-contained space heaters
(if provided) and make certain that louvers and vents are
uncovered to allow air to circulate and cover shipping splits
to protect from the elements. Refer to wiring diagram drawing
for space heater circuit connections. Lubricate hinges, shutters,
and other moving parts.
Section 4.0 - INSTALLATION
The proper switchboard installation method depends on whether
the units are shipped as one complete group (maximum of 84.0”)
or in two or more shipping sections.The general arrangement
drawing supplied by the factory will indicate the shipping groups
and their respective location within the lineup. Units must be
assembled in accordance with the general arrangement drawing.
the units are shipped as one complete group (maximum of 84.0”)
or in two or more shipping sections.The general arrangement
drawing supplied by the factory will indicate the shipping groups
and their respective location within the lineup. Units must be
assembled in accordance with the general arrangement drawing.
4.1. Location
Find the designated area on the building plan where the switch-
board will be installed. If this area is not specified, the location
chosen for installation should provide working clearances com-
plying with article 110.26 of the National Electrical Code (NEC).
Front accessible switchboards require that field connections
including mains, branches, ground, and neutral are accessible
and maintainable from the front. Equipment drawings identify
switchboards that require rear access.
Find the designated area on the building plan where the switch-
board will be installed. If this area is not specified, the location
chosen for installation should provide working clearances com-
plying with article 110.26 of the National Electrical Code (NEC).
Front accessible switchboards require that field connections
including mains, branches, ground, and neutral are accessible
and maintainable from the front. Equipment drawings identify
switchboards that require rear access.
4.2. Foundation Requirements
Extreme care should be taken in layout of foundation or floor.
Refer to general arrangement drawing for exact location of
anchor bolts, area for conduits, other limitations, and instruc-
tions. Foundations must be sufficiently strong to support
the weight of the equipment. Conduit couplings should be
stubbed flush with or below the finished floor level. (Refer to
NEC 408.10) After the equipment has been lowered to the
foundation and set in place, conduit extension sleeves may
be screwed into couplings.
Extreme care should be taken in layout of foundation or floor.
Refer to general arrangement drawing for exact location of
anchor bolts, area for conduits, other limitations, and instruc-
tions. Foundations must be sufficiently strong to support
the weight of the equipment. Conduit couplings should be
stubbed flush with or below the finished floor level. (Refer to
NEC 408.10) After the equipment has been lowered to the
foundation and set in place, conduit extension sleeves may
be screwed into couplings.
Floors and sills must have a smooth level surface and be in the
same plane. The surface of the foundation must not protrude
above the grouted sills or bed plates at any point. Grouted sills
or bed plates must be set true and level and be in an aligned
position in the same plane to each other over the entire length.
same plane. The surface of the foundation must not protrude
above the grouted sills or bed plates at any point. Grouted sills
or bed plates must be set true and level and be in an aligned
position in the same plane to each other over the entire length.
Outdoor equipment is usually installed on a concrete pad with
a level and smooth surface. Outdoor equipment which has been
assembled on formed base plates must be supported at each
section. Adjacent units at each shipping split must be supported
on a single support, and this must be taken into consideration
when the foundation is designed and constructed.
a level and smooth surface. Outdoor equipment which has been
assembled on formed base plates must be supported at each
section. Adjacent units at each shipping split must be supported
on a single support, and this must be taken into consideration
when the foundation is designed and constructed.
4.3. Positioning of Sections
Positioning and connection of the switchboard sections at the
installation site is done in the following manner.
Positioning and connection of the switchboard sections at the
installation site is done in the following manner.
4.3.1. Space to the front and rear should be sufficient for
opening of doors, insertion and withdrawal of removable
breakers, inspection, and maintenance. Service entrance
equipment should be located as close as possible to
the incoming service of the building.
breakers, inspection, and maintenance. Service entrance
equipment should be located as close as possible to
the incoming service of the building.
4.3.2. Clean the mounting surface to remove all dirt and debris.
Start with the left end shipping group and continue in
sequence. Maneuver the section into the desired posi-
tion using procedures described under “Handling.” Use
care in locating sections over conduit areas and beware
of any conduits which stub-up above floor level as these
may block sliding the section in either direction.
sequence. Maneuver the section into the desired posi-
tion using procedures described under “Handling.” Use
care in locating sections over conduit areas and beware
of any conduits which stub-up above floor level as these
may block sliding the section in either direction.
4.3.3. Prepare for the connections across shipping splits before
the equipment is moved into final position. Bus supports
and bus joints should be removed using side, rear and
front access options as required. Note the mounting
position and orientation and save hardware for use in
reinstallation.
and bus joints should be removed using side, rear and
front access options as required. Note the mounting
position and orientation and save hardware for use in
reinstallation.
4.3.4. Remove the shipping skid and stand the section in an
upright position. Remove all packing material and the
bottom floor plate if one is installed in the section. To
protect the bottom channel, any sliding force must be
carefully applied across the bottom 4 inches (100mm)
of the side to fully distribute the sliding force.
bottom floor plate if one is installed in the section. To
protect the bottom channel, any sliding force must be
carefully applied across the bottom 4 inches (100mm)
of the side to fully distribute the sliding force.
4.3.5. All shipping sections must be leveled and aligned to
each other in order to maintain proper alignment of the
horizontal main through bus and splice bus connections.
Bolt all section frames together and connect all through
bus and ground bus at shipping breaks using the splice
plate bus and hardware supplied. Tighten bolted connec-
tions in accordance with torque specifications indicated
on the instruction label supplied.
horizontal main through bus and splice bus connections.
Bolt all section frames together and connect all through
bus and ground bus at shipping breaks using the splice
plate bus and hardware supplied. Tighten bolted connec-
tions in accordance with torque specifications indicated
on the instruction label supplied.
4.4. Anchoring, Leveling and Assembly
Indoor switchboard shipping groups are held in alignment by
bolts holding the vertical sections to each other. The entire
shipping group is to be anchored and leveled as a single
element without loosening any hardware until entire shipping
group is leveled and anchored. Supporting surfaces for the
switchboard at each anchoring bolt location must be level
and in the same plane. There must not be any projection above
this plane within the area covered by the switchboard cubicles.
Indoor switchboard shipping groups are held in alignment by
bolts holding the vertical sections to each other. The entire
shipping group is to be anchored and leveled as a single
element without loosening any hardware until entire shipping
group is leveled and anchored. Supporting surfaces for the
switchboard at each anchoring bolt location must be level
and in the same plane. There must not be any projection above
this plane within the area covered by the switchboard cubicles.
Figure 3
Installation
5
Typical bolt-down hole provisions for cubical bottom, each section.