Installing the Switchgear

DANGER
HAZARD OF electric shock, explosion, or arc flash Make sure there are no obstructions within 48 inch (1219 mm) of the rear door for proper vent function. Inspect air filters during maintenance and replace them if necessary. Do not remove the air filters except for inspection/replacement. Do not use filters other than those recommended in this instruction bulletin. Failure to follow these instructions will result in death or serious injury.

DANGER

HAZARD OF electric shock, explosion, or arc flash

Make sure there are no obstructions within 48 inch (1219 mm) of the rear door for proper vent function.

Inspect air filters during maintenance and replace them if necessary.

Do not remove the air filters except for inspection/replacement.

Do not use filters other than those recommended in this instruction bulletin.

Failure to follow these instructions will result in death or serious injury.

Set the environmental controls (thermostat, humidistat, or other items.) to mitigate condensation (including times when the equipment is lightly loaded, such as storage, downstream loads deenergized). Consult the engineer of record for the appropriate environmental control settings.

Standard Components and Parts

The following components and parts are shipped with each unit:

Caulk to be used to seal cracks found after final installation.
1/2 in. (13 mm) gasket for repair if the unit gasket is damaged during shipment.
One set of four 1/2-13 bolts and seal washers per shipping section, to replace bolts that hold the lifting lugs on the roof.

NOTE: Refer to instruction bulletin 6055-40 for components shipped with the indoor switchgear.

Pre-Installation Procedures

The switchgear may be shipped in one or more shipping sections. Review the assembly drawings to verify that switchgear sections will be assembled in the correct order.
Verify that the conduit placement on the foundation is accurate according to customer drawings. Error in conduit placement may prohibit the proper installation of switchgear as described in this section (see the note below).
Sweep the pad and remove debris before installing any sections.

Installation

Install and level the switchgear shipping section. Carefully align the openings on the bottom of the switchgear sections with conduits on the foundation before lowering the switchgear into place.

NOTE: When more than two shipping sections are involved, carefully measure the conduit spacing, comparing it to the factory order drawings. Cumulative error can be significant enough that it prohibits proper installation. To lessen cumulative error, install the center shipping section first, and work toward either end of the sections.

Unload the switchgear shipping sections from the delivery truck. The shipping sections are designed to be lifted by a crane. Attach a sling to the lifting lugs on the roof of each of the shipping sections as shown in . A spreader bar may be necessary to maintain proper lifting angles. If a crane is not available, contact Schneider Electric for special arrangements for unloading the switchgear sections.

CAUTION
DAMAGED LIFTING EYES The interior angle of the lifting sling should not exceed 90°. Angles greater than 90° apply greater inward pressure on the lifting eyes, which can damage and dislodge the lifting eyes from the switchgear. Failure to follow these instructions can result in injury or equipment damage.

Remove the shipping covers. Be careful not to damage the instrumentation on the front doors when removing shipping covers.
Install and level the switchgear shipping section (see Placing First Section). Carefully align the openings on the bottom of the switchgear sections with conduits on the foundation before lowering the switchgear into place.

Placing First Section
Level the switchgear shipping section using steel shims if necessary.
Verify that the factory-installed gasket attached to one side of the shipping section is in place before installing the subsequent shipping sections. If damaged or missing, repair it using the gasket material provided. Make sure there is no gap between splices if repairs are made.
Using a crane, install the second switchgear shipping section (see Unloading Second Section).

Unloading Second Section
Level the switchgear shipping section using steel shims if necessary.
Verify that the switchgear sections are level, aligned, and fit snugly together. If the sections do not fit properly, lift the most recently placed section by crane, remove any obstructions, and reinstall.
Secure the second section to the previously installed section with the 3/8-16 x 1.0 carriage bolts located on the front of the switchgear, rear of the switchgear, and across the roof of the switchgear (see Securing Switchgear Sections).

Securing Switchgear Sections
After all switchgear sections are in place and anchored, attach the roof caps, using 1/4 inch thread-forming screws supplied. See Roof Cap Installation. Switchgear anchorage for non-seismic applications, see Equipment Anchorage for Non-Seismic Application. Switchgear anchorage for seismic applications, see Equipment Anchorage for Non-Seismic Application.

Roof Cap Installation

Remove the lifting lugs located on the roof of the switchgear (see Removing Large Lifting Lugs and Removing Small Lifting Lugs). Plug the holes with the factory-supplied 1/2-13 bolts and seal washers (see Plugging Holes with Bolt/Seal Washers) furnished with each shipping section.

NOTICE
improper roof installation Make sure that all 1/2-13 bolts and seal washers are in place; they not only seal the roof, they hold it to the switchgear. Failure to follow these instructions can result in equipment damage.

Removing Large Lifting Lugs

Removing Small Lifting Lugs

Plugging Holes with Bolt/Seal Washers

Equipment Anchorage for Non-Seismic Application

The switchgear needs to be anchored to the building structure or foundation using mounting plates as shown in Non-seismic Switchgear Anchor Assembly. Mounting plates (supplied by Schneider Electric) are used as friction clips to secure the enclosure base channels to the building structure or foundation. Equipment installations must be anchored using all enclosure tie-down points as shown in Typical Floor Plan–36 in. (914 mm) Wide Unit (not for construction) for outdoor applications.

Non-seismic Switchgear Anchor Assembly

Equipment Installation for Seismic Applications

Introduction Seismic Certification

Seismic certification is an optional feature on the Masterclad 15 kV Metal-Clad product line and provides seismic conformance options to any of the North American and International building codes and seismic design standards identified in List of Supported Regional Building Codes and Seismic Design Standards. Masterclad 15 kV Metal-Clad that is seismically certified has been certified to the seismic requirements of the listed code per the manufacturer’s certificate of compliance (CoC). Equipment compliance labels and CoC’s are provided with all seismically certified Masterclad 15 kV Metal-Clad. Refer to the equipment CoC for certification details and applicable seismic parameters. To maintain the validity of this certification, the installation instructions provided in this section must be followed.

List of Supported Regional Building Codes and Seismic Design Standards

Country / Region	Code Reference ID	Code Name
North American Codes
Canada	NBCC	National Building Code of Canada
Mexico	CFE MDOC-15	Civil Works Design Manual, Earthquake Design
United States	IBC per ASCE 7 CBC per ASCE 7 UFC per DoD	International Building Code—IBC California Building Code—CBC Uniform Facilities Criteria—UFC
International Codes
Argentina	INPRES-CIRSOC103	Argentinean Standards for Earthquake Resistant Constructions
Australia	AS 1170.4-2007 (R2018)	Structural design actions, Part 4: Earthquake actions in Australia
Chile	NCh 433.Of1996	Earthquake resistant design of buildings
China	GB 50011-2010 (2016)	Code for Seismic Design of Buildings
Colombia	NSR-10 Título A	Colombian Regulation of Earthquake Resistant Construction
Europe	Eurocode 8 EN1998-1	Design of structures for earthquake resistance – Part 1: General rules, seismic actions and rules for buildings
India	IS 1893 (Part 1) : 2016	Criteria for Earthquake Resistant Design of Structures Part 1 General Provisions and Buildings
Indonesia	SNI 1726:2019	Earthquake Resistance Planning Procedures for Building and Non-building Structures
Japan	Building Standard Law	The Building Standard Law of Japan
New Zealand	NZS 1170.5:2004+A1	Structural design actions, Part 5: Earthquake actions – New Zealand
Peru	N.T.E. - E.030	National Building Code, Earthquake-Resistant Design
Russia	СП 14.13330.2018	Building norms and regulations: Construction in seismic regions
Saudi Arabia	SBC 301	Saudi Building Code, Loads & Forces Requirements
Taiwan	CPA 2011	Seismic Design Code and Commentary for Buildings
Turkey	TBEC-2018	Turkey Buildings Earthquake Standard

Responsibility for Mitigation of Seismic Damage

The Masterclad 15 kV Metal-Clad equipment is considered a nonstructural building component as defined by regional building codes and seismic design standards. Equipment capacity was determined from tri-axial seismic shake-table test results in accordance with the International Code Counsel Evaluation Service (ICC ES) Acceptance Criteria for Seismic Certification by Shake-Table Testing of Nonstructural Components (ICC-ES AC156).

An equipment importance factor, I_p, that is greater than one (I_p > 1.0) is assumed and indicates that equipment functionality is required after a seismic event and after seismic simulation testing. This importance factor is applicable for designated seismic systems (for example, special certification) servicing critical infrastructure and essential buildings where post-earthquake equipment functionality is a requirement.

Incoming and outgoing bus, cable, and conduit must also be considered as related but independent systems. These distribution systems must be designed and restrained to withstand the forces generated by the seismic event without increasing the load transferred to the equipment. For applications where seismic hazard exists, it is preferred that bus, cable, and conduit enter and exit the bottom of the equipment enclosure.

Seismic certification of nonstructural components and equipment by Schneider Electric is just one link in the total chain of responsibility required to maximize the probability that the equipment will be intact and functional after a seismic event. During a seismic event, the equipment must be able to transfer the inertial loads that are created and reacted through the equipment’s force resisting system and anchorage to the load-bearing path of the building structural system or foundation.

Anchorage of equipment (for example, nonstructural supports and attachments) to the primary building structure or foundation is required to validate seismic conformance. The construction site structural engineer or engineer of record (EOR) or the registered design professional (RDP) is responsible for detailing the equipment anchorage requirements for the given installation. The installer and manufacturers of the anchorage system are responsible for assuring that the mounting requirements are met. Schneider Electric is not responsible for the specification and performance of equipment anchorage systems.

Tie-down Points for Rigid Floor Mounted Equipment

Tie-down points for enclosure anchorage to the building structure or foundation require using mounting plates as shown in Switchgear as Tested Anchor Assembly. Mounting plates (supplied by Schneider Electric) are welded to the enclosure base channels and accept anchor attachments to the building structure or foundation. Equipment installations must be anchored using all enclosure tie-down points as shown in Typical Floor Plan–36 in. (914 mm) Wide Unit (not for construction) for outdoor applications.

Welded mounting plates must be properly sized to ensure the weldment withstand capacity exceeds the earthquake demand at location of equipment installation. Precautions shall be made to properly vent and shield the equipment enclosure during the field welding process. Schneider Electric is not responsible for equipment damage caused by field welded mounting plates.

Anchorage Assembly Instructions

The bolted anchor assembly view depicted in Switchgear as Tested Anchor Assembly illustrates the equipment’s as-tested attachment to the seismic shake-table test fixture. The equipment seismic rated capacity, as stated on the Schneider Electric CoC, was achieved with the identified size and grade attachment hardware. For bolted attachments, the use of factory supplied Belleville conical spring washers, are required to maintain seismic conformance. Field installed equipment attachment and support detailing shall be in accordance with the anchorage system requirements as defined by the construction site EOR or RDP.