Siemens 480V 사용자 설명서
480V Metal-Enclosed Switchgear
Construction Details
51
CSI Section 16470
Siemens Electrical Products and Systems
Specification Guide
480V Metal-Enclosed
Switchgear
4
General
General
The Siemens 480 volt switchgear assem-
bly consists of one or more metal-
enclosed, vertical sections. Normally the
end sections are designed to allow for
installation of future sections.
The Siemens 480 volt switchgear assem-
bly consists of one or more metal-
enclosed, vertical sections. Normally the
end sections are designed to allow for
installation of future sections.
Each vertical section consists of up to
four individually enclosed breaker or auxil-
iary compartments which are sized to
provide uniform height.
four individually enclosed breaker or auxil-
iary compartments which are sized to
provide uniform height.
Included in each assembly are various
components such as circuit breakers,
instrumentation and control equipment,
transformers, relays, three-phase bus
work, and all internal wiring, connectors,
and other supporting equipment.
components such as circuit breakers,
instrumentation and control equipment,
transformers, relays, three-phase bus
work, and all internal wiring, connectors,
and other supporting equipment.
In accordance with ANSI C37.20.1, the
maximum temperature for parts that are
handled is 50°C. The main bus maximum
temperature rise is 65°C above 40°C
ambient. The temperature rise of the air
surrounding the cable connection points
is limited to 45°C above 40°C ambient.
maximum temperature for parts that are
handled is 50°C. The main bus maximum
temperature rise is 65°C above 40°C
ambient. The temperature rise of the air
surrounding the cable connection points
is limited to 45°C above 40°C ambient.
Finish
During construction, the structural steel
parts, panels, and compartments are all
prepared for painting by a five-stage
wash system. Standard finish color is
light gray ANSI 61. If a different finish
color is required, it is applied over the
standard finish with conventional spray
equipment and is allowed to air cure. The
completed finish has a nominal 2 mils dry
film thickness.
During construction, the structural steel
parts, panels, and compartments are all
prepared for painting by a five-stage
wash system. Standard finish color is
light gray ANSI 61. If a different finish
color is required, it is applied over the
standard finish with conventional spray
equipment and is allowed to air cure. The
completed finish has a nominal 2 mils dry
film thickness.
Assembly Construction
Siemens metal-enclosed power
switchgear is constructed of preformed,
full-depth, 14-gauge steel sheets bolted
together and reinforced with cross-mem-
ber braces to form a rigid, self-supporting
compact assembly. The top and rear
plates, and side sheets are all 14-gauge
steel. When two vertical sections are
mounted together, two sheets of 14-
gauge steel separate adjacent circuit
breaker compartments.
Siemens metal-enclosed power
switchgear is constructed of preformed,
full-depth, 14-gauge steel sheets bolted
together and reinforced with cross-mem-
ber braces to form a rigid, self-supporting
compact assembly. The top and rear
plates, and side sheets are all 14-gauge
steel. When two vertical sections are
mounted together, two sheets of 14-
gauge steel separate adjacent circuit
breaker compartments.
Bolted steel / glass polyester compart-
ments housing each power circuit break-
er are mounted in the vertical section to
form the switchgear assembly. This iso-
lates the circuit breakers from the bus /
cable section and from adjacent circuit
breaker compartments.
ments housing each power circuit break-
er are mounted in the vertical section to
form the switchgear assembly. This iso-
lates the circuit breakers from the bus /
cable section and from adjacent circuit
breaker compartments.
The bus / cable section includes main
horizontal bus, riser bus, connections
from the main bus to each set of primary
disconnects, and load side copper run-
back bus.
horizontal bus, riser bus, connections
from the main bus to each set of primary
disconnects, and load side copper run-
back bus.
Grounded metal barriers can be provided
to isolate the main bus from cable con-
nections. Barriers are also available to
isolate the incoming line to the main cir-
cuit breakers from the main load bus of
the switchgear.
to isolate the main bus from cable con-
nections. Barriers are also available to
isolate the incoming line to the main cir-
cuit breakers from the main load bus of
the switchgear.
햴
햳
햲
햶
햵
햲
Inter-Unit Wiring Trough
햳
Meter and Auxiliary Compartment
햴
Ventilation and Lifting Structure
햵
Telescoping Breaker Drawout Rails
햶
Ventilation Openings (RL-2000, RL-3200, RL-4000
and RL-5000)
and RL-5000)