Download Section [26 13 19] [16341]

Section [26 13 19.14] [16341]
MEDIUM VOLTAGE VACUUM INTERRUPTER SWITCHGEAR
Schneider Electric
Gas Insulated Switchgear
PART 1
GENERAL
1.1
SUMMARY
A.
Scope: Provide labor, material, equipment, related services, and supervision required, including, but
not limited to, manufacturing, fabrication, erection, and installation for medium voltage vacuum
interrupter switchgear as required for the complete performance of the work, and as shown on the
Drawings and as herein specified.
B.
Section Includes: The work specified in this Section includes, but shall not be limited to, the following:
1.
1.2
Medium voltage (38 kV and below) GHA gas insulated arc-resistant switchgear with vacuum
circuit breakers.
REFERENCES
A.
General: The publications listed below form a part of this Specification to the extent referenced. The
publications are referred to in the text by the basic designation only. The edition/revision of the
referenced publications shall be the latest date as of the date of the Contract Documents, unless
otherwise specified.
B.
ASTM International (ASTM):
C.
1.
ASTM B117, "Standard Practice for Operating Salt Spray (Fog) Apparatus."
2.
ASTM D1654, "Standard Test Method for Evaluation of Painted or Coated Specimens Subjected
to Corrosive Environments."
Canadian Standards Association (CSA):
1.
CSA C22.1, “Canadian Electrical Code, Part I, Safety Standard for Electrical Installations.”
2.
CSA C22.2 No. 14, “Industrial Control Equipment.”
3.
CSA C22.2 No. 31-10, “Switchgear Assemblies.”
4.
CSA C22.2 No. 58, “High-Voltage Isolating Switches.”
5.
CAN/CSA C60044-1, “Instrument Transformers - Part 1: Current Transformers.”
6.
CAN/CSA C60044-2, “Instrument Transformers - Part 2: Inductive Voltage Transformers.”
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7.
D.
European Standards (EN):
1.
E.
F.
EN 50181, “Plug-In Type Bushings above 1 kV Up to 52 kV and from 250 A to 2,50 kA for
Equipment Other Than Liquid Filled Transformers.”
Institute of Electrical and Electronics Engineers, Inc. (IEEE):
1.
ANSI/IEEE C37.010, "Application Guide for AC High-Voltage Circuit Breakers Rated on a
Symmetrical Current Basis."
2.
ANSI/IEEE C37.016, “Standard for AC High-Voltage Circuit Switchers Rated 15.5 kV through 245
kV.”
3.
ANSI/IEEE C37.04, "Standard Rating Structure for AC High-Voltage Circuit Breakers.”
4.
ANSI/IEEE C37.06, "AC High-Voltage Circuit Breakers on a Symmetrical Current Basis-Preferred
Ratings and Related Required Capabilities.”
5.
ANSI/IEEE C37.09, "Standard Test Procedure for AC High-Voltage Circuit Breakers Rated on a
Symmetrical Basis."
6.
ANSI/IEEE C37.20.3, "Metal-Enclosed Interrupter Switchgear."
7.
ANSI/IEEE C37.20.4, “Indoor AC Switches (1 kV to 38 kV) for Use in Metal-Enclosed
Switchgear.”
8.
ANSI/IEEE C37.54, "Indoor AC High-Voltage Circuit Breakers Applied as Removable Elements in
Metal-Enclosed Switchgear - Conformance Test Procedures.”
9.
ANSI/IEEE C37.57, "Switchgear - Metal-Enclosed Interrupter Switchgear Assemblies Conformance Testing.”
10.
ANSI/IEEE C37.58, "Switchgear - Indoor AC Medium-Voltage Switches for Use in Metal-Enclosed
Switchgear - Conformance Test Procedures.”
11.
ANSI/IEEE C57.13, “IEEE Standard Requirements for Instrument Transformers.”
International Code Council (ICC):
1.
G.
CSA TIL No. D-25, “Technical Information Letter for Pressurized Gas Insulated Switchgear
(GIS).”
ICC IBC, "International Building Code."
International Electrotechnical Commission (IEC):
1.
IEC 60044-1, “Instrument Transformers - Part 1: Current Transformers.”
2.
IEC 60044-2, “Instrument Transformers - Part 2: Inductive Voltage Transformers.”
3.
IEC 60529, “Degrees of Protection Provided by Enclosures (IP Code).”
4.
IEC 62271-1, “High Voltage Switchgear and Controlgear - Part 1: Common Specifications.”
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H.
5.
IEC 62271-102, “High Voltage Switchgear and Controlgear - Part 102: Alternating Current
Disconnectors and Earthing Switches.”
6.
IEC 62271-100, "High-Voltage Switchgear and Control Gear - Part 100: Alternating Current
Circuit-Breakers."
7.
IEC 62271-200, "High-Voltage Switchgear and Control Gear - Part 200: Alternating Current
Metal-Enclosed Switchgear and Control Gear for Rated Voltages Above 1 kV and up to and
Including 52 kV."
International Organization for Standardization (ISO):
1.
I.
National Fire Protection Association (NFPA):
1.
1.3
ISO 9001, "Quality Management Systems - Requirements."
NFPA 70, "National Electrical Code," hereinafter referred to as NEC.
SUBMITTALS
A.
General: See [Section 01 33 00 - Submittal Procedures] [Section 01300 - Submittals].
B.
Product Data: Submit product data showing material proposed. Submit sufficient information to
determine compliance with the Drawings and Specifications.
C.
Shop Drawings: Submit shop drawings for each product and accessory required. Include information
not fully detailed in manufacturer’s standard product data. Submit shop drawings indicating outline
dimensions, enclosure construction, shipping splits, lifting and supporting points, electrical single line
diagram, and equipment electrical ratings.
D.
Wiring Diagrams: Submit wiring diagrams detailing power, signal, and control systems, clearly
differentiating between manufacturer-installed wiring and field-installed wiring, and between
components provided by the manufacturer and those provided by others.
E.
Operation and Maintenance Data: Submit operation and maintenance data for medium voltage vacuum
interrupter switchgear to include in operation and maintenance manuals.
1.
1.4
Include switchgear recommended spare parts list.
QUALITY ASSURANCE
A.
Qualifications:
1.
Manufacturer Qualifications: Manufacturer shall be a firm engaged in the manufacture of medium
voltage vacuum interrupter switchgear of types and sizes required, and whose products have
been in satisfactory use in similar service for a minimum of five years.
2.
Installer Qualifications: Installer shall be a firm that shall have a minimum of five years of
successful installation experience with projects utilizing medium voltage vacuum interrupter
switchgear similar in type and scope to that required for this Project and shall be approved by the
manufacturer.
a.
Installer shall follow switchgear manufacturers written instructions during installation and
commissioning. The switchgear installer shall use factory trained and certified service
personnel to assist in the installation of the gas insulated switchgear and during the
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commissioning process.
B.
Regulatory Requirements: Comply with applicable requirements of the laws, codes, ordinances, and
regulations of Federal, State, and local authorities having jurisdiction. Obtain necessary approvals from
such authorities.
1.
Without limiting the generality of other requirements of this Section, all work specified herein shall
conform to or exceed the applicable requirements of the following standards; provided, that
wherever the provisions of said publications are in conflict with the requirements specified herein,
the more stringent requirements shall apply:
a.
ANSI/IEEE C37.20.3.
b.
ANSI/IEEE C37.010, ANSI/IEEE C37.04, ANSI/IEEE C37.06, ANSI/IEEE C37.09,
ANSI/IEEE C37.20.4, and ANSI/IEEE C37.016.
c.
ANSI/IEEE C37.54, ANSI/IEEE C37.57, ANSI/IEEE C37.58, and ANSI/IEEE C57.13.
d.
NEC and CSA C22.1.
e.
CSA C22.2 No. 14, CSA C22.2 No. 31-10, CSA C22.2 No. 58, CAN/CSA C60044-1, and
CAN/CSA C60044-2.
f.
CSA TIL No. D-25.
g.
IEC 60044-1, IEC 60044-2, IEC 60529, IEC 62271-1, IEC 62271-102, IEC 62271-100, and
IEC 62271-200.
h.
ISO 9001.
i.
ICC IBC.
C.
Pre-Installation Conference: Prior to commencing the installation, meet at the Project site to review the
material selections, installation procedures, and coordination with other trades. Pre-installation
conference shall include, but shall not be limited to, the Contractor, the Installer, manufacturer’s
representatives, and any trade that requires coordination with the work. Date and time of the preinstallation conference shall be acceptable to the Owner and the Architect.
D.
Single Source Responsibility: Obtain medium voltage vacuum interrupter switchgear and required
accessories from a single source with resources to produce products of consistent quality in
appearance and physical properties without delaying the work. Any materials which are not produced
by the manufacturer shall be acceptable to and approved by the manufacturer.
1.5
DELIVERY, STORAGE, AND HANDLING
A.
Deliver materials to the Project site in supplier’s or manufacturer’s original wrappings and containers,
labeled with supplier’s or manufacturer’s name, material or product brand name, and lot number, if any.
1.
B.
Accept equipment on site and inspect for shipping damage.
Store materials in their original, undamaged packages and containers, inside a well-ventilated area
protected from weather, moisture, soiling, extreme temperatures, and humidity.
1.
Protect equipment from weather and moisture by covering with heavy plastic or canvas and by
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maintaining heat within enclosure in accordance with manufacturer's instructions.
PART 2
PRODUCTS
2.1
MANUFACTURERS
A.
2.2
The medium voltage vacuum interrupter switchgear shall be manufactured by Schneider Electric or an
approved equal.
GAS INSULATED SWITCHGEAR ASSEMBLY
A.
The gas insulated switchgear shall consist of a GHA indoor, single bus design containing circuit
breakers and the necessary accessory components, factory-assembled (except for necessary shipping
splits), and operationally checked. The assembly shall be a self-supporting and floor-mounted on a
level concrete pad. The integrated switchgear assembly shall withstand the effects of closing, carrying
and interrupting currents up to the assigned maximum short circuit rating.
1.
See [Section 13 34 23 - Fabricated Structures] [Section 13120 - Pre-Engineered Structures] for
requirements of the outdoor structure.
B.
System voltage shall be [____] kV nominal, three-phase [grounded] [ungrounded], 60 hertz.
C.
Maximum design voltage shall be [4.76] [15.0] [27.0] [38.0] kV.
D.
Impulse withstand (basic impulse level) shall be [60] [95] [125] [150] [170] kV.
E.
Power frequency withstand shall be [19] [36] [60] [80] kV, 1 minute test.
F.
Main bus ampacity shall be [1200] [1600] [2000] [2500] amperes, continuous.
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G.
Momentary current ratings shall be equal to the circuit breaker close and latch rating.
H.
Gas compartments shall be designed as hermetically closed, sealed pressure systems.
I.
Each compartment shall be filled with the SF6 gas at the rated minimum operating pressure, tested
and sealed at the factory. No desiccant or other moisture absorbents in any part of the switchgear shall
be installed at the site.
J.
The switchgear shall be three-phase encapsulated with stainless steel housing. Bus bar connections
between sections shall be single-phase encapsulated.
K.
Operations, service procedures, and cable connections shall be performed from the front side of the
switchgear.
L.
The enclosure shall be designed to allow for a plenum to be mounted on rear. The plenum shall extend
from end-to-end of the lineup and shall have flanged ends for easy customer coupling. In accordance
with the IEEE and CSA Testing Guides, the recommended plenum shall be tested with the arc-resistant
switchgear and shall thus be included in the certified test report from the testing laboratory.
M.
In the case of a section needing replacement, a single section shall be detached and removed without
moving the adjacent sections and without requiring gas handling on-site.
N.
Gas compartments shall be equipped with a gas pressure monitoring system. It shall provide two limit
values (pre warning and basic warning) and a visual indicator located on the front of the section shall
display the status of each compartment. Auxiliary contacts shall be provided for remote indication of the
warning levels. The device shall be self-monitoring.
O.
In order to reduce risk of leakage and avoid gas handling, the pressure monitoring system shall employ
a gas density switch directly mounted on the disposal valve. Use of tubing and piping with a manometer
(pressure gauge) shall not be permitted.
P.
Circuit breaker and bus bar compartments shall be separate gas-filled compartments electrically
connected with gastight bushings. Each gas-filled compartment shall be monitored independently of the
others.
Q.
Each gas compartment shall be provided with pressure relief device to limit the pressure in the event of
an internal fault. The pressure relief device shall be designed such that discharges resulting for internal
faults shall be directed away from locations where personnel may be present.
R.
The check of voltage presence shall be done with an electronic and integrated voltage detecting
system.
1.
The indication shall be tapped from a capacitive voltage divider in the cable connection
compartment.
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2.3
2.
The maintenance free voltage detection system shall work without any external energy and shall
monitor its connected test circuits continuously.
3.
For phase comparison, suitable connections shall be provided, which shall have to be covered
during general use.
COMPONENTS
A.
Stationary Structure:
1.
The switchgear shall consist of [___] sections, including, but not limited to, [___] breaker
compartments and [___] auxiliary compartments assembled to form a rigid self-supporting
completely enclosed structure providing steel barriers between sections.
2.
Sheet steel used shall be minimum 11 gage. Cell width shall be 24 inches (610 mm) to 39 inches
(991 mm). Cell depth shall be 63 inches (1600 mm) as the base offering. Non-bolted access
doors shall be pad lockable as an option. Provisions shall be made so that switch gear lineups
shall be able to be extended on either end without gas works.
3.
The sections shall be divided by metal barriers into the following separate compartments:
a.
Circuit breaker(s), instrument, main bus, auxiliary device, and cable. Each feeder section
shall have one circuit breaker compartment.
4.
Assemblies shall have a design lifetime of at least 30 years.
5.
The design leakage rate of the equipment shall not exceed 0.1 percent per year. Topping of gas
shall not be required for the lifetime of the equipment (minimum 30 years).
6.
Operator shall be protected against direct contact with live parts. Supervision and operation of the
switchgear shall be possible with front doors closed.
B.
Circuit Breaker Compartment: The circuit breaker compartment shall be designed to use the Schneider
Electric line of vacuum circuit breakers. The circuit breakers shall be fixed mounted in a sealed for life
SF6 (sulpher hexafluoride) gas compartment.
C.
Cable Compartment/Ground Bus:
1.
Cable connections shall be made using fully insulated plug-in cable terminations according to EN
50181, Type C by Euromold, Nexans, Tyco, etc.
2.
A continuous horizontal copper ground bus rated a minimum of 300 amperes shall be provided at
the bottom of the assembly extending through this compartment for the full length of the
switchgear.
3.
The cable compartment shall be able to accept standard customer requirements for cable
terminations. Cable supports shall be provided to avoid undue strain on the cable termination.
Cable entry shall be either from the top or the bottom of the switchgear. Space shall be allowed
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for the mounting of lightning arrestors.
D.
E.
4.
Provision for cable testing in front of the switchgear without disconnection of the cable shall be
included.
5.
Inside the cable compartment, adequate provisions shall be provided for grounding the screen
and/or armoring of each cable independently.
6.
It shall be possible to equip the cable termination with grounding stud for visual grounding.
7.
Space shall be allowed for the mounting of a zero sequence current sensor inside the cable
compartment without the need for a pit or vault under the equipment.
8.
The number of cables, size, and type for each section shall be shown on the Drawings [or
provided as appendix [XX] to this Section] and with complete cable datasheet.
Main Bus Compartment:
1.
The main bus shall be rated [1200] [1600] [2000] [2500] amperes. Bus bars shall be copper and
installed in a separate gas-filled bus bar compartment.
2.
The gas insulated bus bar connections between sections shall be by means of a single-phase
solid insulated link outside the gas compartment.
3.
For section replacement and extension the connection links shall be easily removable without
moving the adjacent section and shall not require any gas handling on-site.
Three-Position Switch:
1.
The upper bus bar compartment shall contain the bus bar system and a three-position switch.
The three-position switch shall be branch circuit on-off and prepared for ground.
2.
Setting of the three-position disconnector shall be as follows:
a.
On: The connection between the bus bar and the circuit breaker shall be closed.
b.
Off: The connection between the bus bar and circuit breaker shall be open.
c.
Grounded: The contacts shall be linked with the grounding contact.
3.
The three-position switch shall be equipped with auxiliary contacts as required for interlocking
and remote indication.
4.
Optionally, provisions for padlocks on the mechanical pushbutton of the three-position switch
shall be supplied.
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F.
5.
The isolation and ground switch shall be rated for a minimum of 1000 mechanical operations.
6.
The switch shall be externally operated with provisions for locking in all three positions.
7.
The three-position switch contacts shall be visible via a plug-on camera system to allow an
operator to visually confirm all three positions. The camera view shall show all phase contacts of
the switch in the same view.
Circuit Breakers:
1.
The circuit breakers shall be rated [____] nominal volts, [4760] [8250] [15,000] [24,500] [34,500]
maximum volts, 60 hertz, with a continuous current rating of [1200] [1600] [2000] [2500] amperes
and a maximum symmetrical interrupting rating of [25] [31.5] [40] kA system. The circuit breaker
shall be fixed mounted with one vacuum interrupter per phase inside an inaccessible circuit
breaker compartment. All three vacuum interrupters shall be actuated together via one shaft from
the circuit breaker mechanism.
2.
The circuit breaker shall have a minimum life of 10,000 open-close mechanical operations at
nominal current and 100 operations at short circuit breaking current.
3.
The circuit breaker shall be operated by means of a stored energy mechanism which shall be
normally charged by a universal motor but shall also be able to be charged by the manual handle
supplied for manual emergency closing or testing. The closing speed of the moving contacts shall
be independent of both the control voltage and the operator.
a.
Maximum symmetrical kA interrupting ratings shall be based on Table 1 of ANSI/IEEE
C37.06.
4.
Vacuum interrupter design shall limit the chopping current to below 5 amperes to eliminate the
need for surge protection against switching transients. Chopping current shall be measured,
noted, and referenced for engineering purposes.
5.
The operating mechanism for the circuit breaker shall be located in a separate compartment
behind the operator interface section allowing access from the front of the switchgear while the
primary equipment is in service.
6.
The operating mechanism and moving parts associated shall be serviceable from the front of the
section.
7.
An interlocking system shall be provided to prevent access to the cable compartment while the
circuit breaker is in the on position. In addition, the operating crank shall only be able to be
inserted/removed when the defined end positions have been reached. The circuit breaker shall
not be able to be actuated with the crank inserted for the isolation or grounding procedure.
8.
There shall be no maintenance required to the live parts of the breaker during the lifetime of the
section.
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24 volts DC tripping only is available, not for closing.
9.
G.
H.
The circuit breaker control voltage shall be [24] [48] [60] [125] [250] volts DC, 110/120 volts AC.
Provide one capacitor trip unit for each circuit breaker when AC control power is required.
Interlocks:
1.
To ensure maximum safety for operating personnel, the switchgear shall have complete
mechanical interlocking system. The system shall ensure by internal interlocks, that no incorrect
action shall be able to be initiated to the switching devices due to an operator error.
2.
It shall not be possible to ground the complete bus bar unless all three position switches are in
the open stage. It shall not be possible to close any of the three-position switches when the
complete bus bar assembly is grounded.
3.
Interlocks shall be provided to prevent grounding with any incoming feeder in the service position;
back feeding via cable transformer feeders and/or voltage transformers.
4.
Optional, if the three-position switch is motorized an additional cylinder lock shall be installed to
release either manual or electrical actuation of the mechanism.
5.
Direct switching from grounded to closed position shall not be possible.
6.
Actuating cranks shall not be removable when the disconnecting and/or grounding switches are
between the on or off positions.
7.
Simultaneous operation of switching elements shall not be possible.
8.
A manual mode shall be available in the event of auxiliary supply failure.
9.
The insertion of manual levels and cranks shall automatically disconnect the auxiliary voltage for
mechanism motors.
10.
The circuit breaker shall not be operable if the three-position disconnecting/grounding switch is in
an intermediate position.
11.
The circuit breaker shall automatically close and open via a mechanical link when the grounding
switch is going to be actuated.
Instrument Transformers:
1.
Each cable compartment shall have the provision for front accessible mounting of up to three
current transformers per phase (ANSI standard relay accuracy). The current transformer
assembly shall be insulated for the full voltage rating of the switchgear. The current transformers
wiring shall be Type SIS #12 AWG. Relaying and metering accuracy shall conform to ANSI
standards.
2.
Current transformers shall be bus bar and/or cable compartment mounted.
3.
Zero sequence current transformers shall be of ANSI relay class, window type construction.
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4.
Voltage transformers shall be mounted with primary current-limiting fuses and shall have ratio as
indicated. The transformers shall have mechanical rating equal to the momentary rating of the
circuit breakers and shall have metering accuracy per ANSI standards.
5.
It shall be possible to easily retrofit or replace the transformer primary fuse without any gas
handling.
6.
Voltage transformers shall be bus bar and/or cable compartment mounted.
7.
Voltage transformers shall be provided with an internal two-position disconnecting device
operable from the front of the switchgear. Optionally, provide complete with camera to provide
visual confirmation of grounding.
I.
Control Wiring: The switchgear shall be wired with Type SIS #14 AWG, except where larger size wire is
specified. The switchgear shall be provided with terminal blocks for outgoing control connections. Wire
markers shall be provided for each end of all control wires.
J.
Protective Relays: Provide relays as indicated on the Drawings for each circuit breaker.
.
K.
Circuit Monitor: With each circuit breaker, provide PowerLogic™ circuit monitor [with digital display]
[with waveform capture] [wired for communications to other devices] [stand-alone] multi-function
microprocessor-based metering/data acquisition device.
.
L.
2.4
System Display: With each switchgear lineup, provide one PowerLogic™ system display [with printer
port] [wired out to a receptacle].
FABRICATION
A.
Each equipment bay shall be a separately constructed cubicle assembled to form a rigid freestanding
unit. Minimum sheet metal thickness shall be 11 gage steel on exterior surfaces. Adjacent bays shall
be securely bolted together to form an integrated rigid structure. The rear covers shall be removable to
assist installation and maintenance of bus and cables. Each individual unit shall be braced to prevent
distortion.
B.
The GIS switchgear shall be fully assembled, inspected, and tested at the factory prior to shipment.
Large line-ups shall be split to permit normal shipping and handling as well as for ease of rejoining at
the job site.
2.5
FINISHES
A.
Factory Finishing:
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1.
Ferrous steel components of the switchboards shall be protected with zinc phosphate, unless
made of stainless steel.
.
2.
Paint color shall be [RAL 9003] [RAL 7044]; TGIC polyester powder, applied electrostatically
through air. Following paint application, parts shall be baked to produce a hard durable finish. The
average thickness of the paint film shall be 2.0 mils (0.051 mm). Paint film shall be uniform in
color and free from blisters, sags, flaking, and peeling.
3.
Adequacy of paint finish to inhibit the buildup of rust on ferrous metal materials shall be tested
and evaluated per Paragraphs 6.2.8.1-7 of ANSI/IEEE C37.20.3. Salt spray withstand tests in
accordance with ASTM D1654 and ASTM B117 shall be performed on a periodic basis to provide
conformance with the corrosion resistance standard of at least 600 hours minimum (indoor
equipment).
PART 3
EXECUTION
3.1
EXAMINATION
A.
3.2
Verification of Conditions: Examine areas and conditions under which the work is to be installed, and
notify the Contractor in writing, with a copy to the Owner and the Architect, of any conditions detrimental
to the proper and timely completion of the work. Do not proceed with the work until unsatisfactory
conditions have been corrected.
1.
Visually inspect switchgear for evidence of damage and verify that surfaces are ready to receive
work.
2.
Visually inspect to confirm that all items and accessories are in accordance with the
Specifications and the Drawings.
3.
Verify field measurements are as [shown on the Drawings] [shown on final shop drawings]
[instructed by manufacturer].
4.
Verify that required utilities (i.e., control voltage for heater circuits on outdoor switchgear) are
available, in proper location, and ready for use.
5.
The Owner reserves the right to witness any or all tests, plus any quality control dielectric tests.
Sufficient notification shall be given to allow the Owner to be present for the tests. A minimum of
five working days shall be allowed.
6.
The manufacturer shall allow the client a minimum of five working days to complete the precommissioning testing at the factory. The tests shall be performed by the client engineer and the
manufacturer shall provide an adequate test area with auxiliary power.
7.
Beginning of the work shall indicate acceptance of the areas and conditions as satisfactory by the
Installer.
INSTALLATION
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A.
Install medium voltage vacuum interrupter switchgear in accordance with reviewed product data, final
shop drawings, manufacturer’s written instructions and recommendations, and as indicated on the
Drawings.
1.
B.
Installation and testing shall be performed with the assistance and supervision of factory trained
and certified field service personnel.
Installation of the switchgear units, devices, and materials on the building site, including, but not limited
to, inserting the switching unit into the switchboard room, shall be performed by a certified and trained
service personnel. This shall include, but shall not be limited to, the following:
1.
Positioning and adjustment of the switching unit onto an existing base frame.
2.
Connection of the switchgear to an existing grounding system.
3.
Performance of an on-site rated alternating voltage test for the bus bar per section.
C.
Delivery and assembling of the base frame will be the province of the Owner/Contractor
D.
Install in accordance with manufacturer's instructions, applicable requirements of the NEC, and in
accordance with recognized industry practices.
E.
Install cables, as provided by the switchgear manufacturer, to connect the primary surge arresters.
F.
Bending of high voltage cables shall be avoided or minimized. Necessary bends shall meet at least the
minimum radii specified by the cable manufacturer.
3.3
FIELD QUALITY CONTROL
A.
Field inspection and testing [shall be performed by the Installer] [will be performed by a separate
contractor furnished by the Owner].
B.
Visually inspect for physical damage.
C.
Perform start-up tests in accordance with manufacturer's instruction manual.
D.
Verify key interlock operation.
E.
Perform low frequency withstand (Hi-Pot) tests according to ANSI/IEEE C37.20.3, Paragraph 9.2.
3.4
ADJUSTING AND CLEANING
A.
3.5
Touch-up paint chips and scratches with manufacturer-supplied paint and leave remaining paint with
the Owner.
DEMONSTRATION
A.
Provide the services of a factory-authorized service representative of the manufacturer to provide start-
Section [26 13 19.14] [16341]
Medium Voltage Vacuum Interrupter
Switchgear
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06/27/2017
Schneider Electric
up service and to demonstrate and train the Owner’s personnel.
3.6
1.
Test and adjust controls and safeties. Replace damaged or malfunctioning controls and
equipment.
2.
Train the Owner’s maintenance personnel on procedures and schedules related to start-up and
shutdown, troubleshooting, servicing, and preventive maintenance.
3.
Review data in operation and maintenance manuals with the Owner’s personnel.
4.
Schedule training with the Owner, through the Architect, with at least seven day’s advanced
notice.
PROTECTION
A.
Provide final protection and maintain conditions in a manner acceptable to the Installer, that shall
ensure that the medium voltage vacuum interrupter switchgear shall be without damage at time of
Substantial Completion.
END OF SECTION
Section [26 13 19.14] [16341]
Medium Voltage Vacuum Interrupter
Switchgear
Page 14
06/27/2017
Schneider Electric