PSG Section 26 28 16.13 - Eaton



Section 26 28 16.13

SAFETY SWITCHES

1. GENERAL

01. SCOPE

A. THE CONTRACTOR SHALL FURNISH AND INSTALL THE LOW-VOLTAGE FUSED AND NON-FUSED SWITCHES AS SPECIFIED HEREIN AND AS SHOWN ON THE CONTRACT DRAWINGS.

02. Related Sections

03. REFERENCES

A. THE SWITCHES AND ALL COMPONENTS SHALL BE DESIGNED, MANUFACTURED AND TESTED IN ACCORDANCE WITH THE LATEST APPLICABLE STANDARDS:

1. NEMA KS-1

2. UL 98

04. Submittals – for Review/approval

A. THE FOLLOWING INFORMATION SHALL BE SUBMITTED TO THE ENGINEER:

1. Dimensioned outline drawing

2. Conduit entry/exit locations

3. Switch ratings including:

a. Short-circuit rating

b. Voltage

c. Continuous current

4. Fuse ratings and type

5. Cable terminal sizes

6. Product data sheets

05. Submittals – for construction

A. THE FOLLOWING INFORMATION SHALL BE SUBMITTED FOR RECORD PURPOSES:

1. Final as-built drawings and information for items listed in Paragraph 1.04, and shall incorporate all changes made during the manufacturing process

06. Qualifications

A. THE MANUFACTURER OF THE ASSEMBLY SHALL BE THE MANUFACTURER OF THE MAJOR COMPONENTS WITHIN THE ASSEMBLY.

B. For the equipment specified herein, the manufacturer shall be ISO 9001 or 9002 certified.

C. The manufacturer of this equipment shall have produced similar electrical equipment for a minimum period of five (5) years. When requested by the Engineer, an acceptable list of installations with similar equipment shall be provided demonstrating compliance with this requirement.

D. (Provide Seismic tested equipment as follows:

1. The equipment and major components shall be suitable for and certified to meet all applicable seismic requirements of the International Building Code (IBC) for zone 4 application. Guidelines for the installation consistent with these requirements shall be provided by the switchgear manufacturer and be based upon testing of representative equipment. The test response spectrum shall be based upon a 5% minimum damping factor, IBC: a peak of 2.45g’s (3.2-11 Hz), and a ZPA of 0.98g’s applied at the base of the equipment. The tests shall fully envelop this response spectrum for all equipment natural frequencies up to at least 35 Hz.

-- (OR –

1. THE EQUIPMENT AND MAJOR COMPONENTS SHALL BE SUITABLE FOR AND CERTIFIED TO MEET ALL APPLICABLE SEISMIC REQUIREMENTS OF THE CALIFORNIA BUILDING CODE (CBC) THROUGH ZONE 4 APPLICATION. GUIDELINES FOR THE INSTALLATION CONSISTENT WITH THESE REQUIREMENTS SHALL BE PROVIDED BY THE SWITCHGEAR MANUFACTURER AND BE BASED UPON TESTING OF REPRESENTATIVE EQUIPMENT. THE TEST RESPONSE SPECTRUM SHALL BE BASED UPON A 5% MINIMUM DAMPING FACTOR, CBC: A PEAK OF 2.15G’S, AND A ZPA OF 0.86G’S APPLIED AT THE BASE OF THE EQUIPMENT. THE TESTS SHALL FULLY ENVELOP THIS RESPONSE SPECTRUM FOR ALL EQUIPMENT NATURAL FREQUENCIES UP TO AT LEAST 35 HZ.

-- (OR --

1. THE MANUFACTURER MAY CERTIFY THE EQUIPMENT BASED ON A DETAILED COMPUTER ANALYSIS OF THE ENTIRE ASSEMBLY STRUCTURE AND ITS COMPONENTS. GUIDELINES FOR THE INSTALLATION CONSISTENT WITH THESE REQUIREMENTS SHALL BE PROVIDED BY THE SWITCHGEAR MANUFACTURER AND BE BASED UPON TESTING OF REPRESENTATIVE EQUIPMENT. THE EQUIPMENT MANUFACTURER SHALL DOCUMENT THE REQUIREMENTS NECESSARY FOR PROPER SEISMIC MOUNTING OF THE EQUIPMENT

2. The following minimum mounting and installation guidelines shall be met, unless specifically modified by the above referenced standards.

a. The Contractor shall provide equipment anchorage details, coordinated with the equipment mounting provision, prepared and stamped by a licensed civil engineer in the state. Mounting recommendations shall be provided by the manufacturer based upon approved shake table tests used to verify the seismic design of the equipment.

b. The equipment manufacturer shall certify that the equipment can withstand, that is, function following the seismic event, including both vertical and lateral required response spectra as specified in above codes.

c. The equipment manufacturer shall document the requirements necessary for proper seismic mounting of the equipment. Seismic qualification shall be considered achieved when the capability of the equipment, meets or exceeds the specified response spectra.

07. Regulatory Requirements

A. THE SAFETY SWITCHES SHALL BEAR A UL LABEL.

08. Delivery, Storage and Handling

A. EQUIPMENT SHALL BE HANDLED AND STORED IN ACCORDANCE WITH MANUFACTURER’S INSTRUCTIONS. ONE (1) COPY OF THESE INSTRUCTIONS SHALL BE INCLUDED WITH THE EQUIPMENT AT TIME OF SHIPMENT.

2. products

01. MANUFACTURERS

A. EATON / CUTLER-HAMMER PRODUCTS

B. (__________

C. (__________

The listing of specific manufacturers above does not imply acceptance of their products that do not meet the specified ratings, features and functions. Manufacturers listed above are not relieved from meeting these specifications in their entirety. Products in compliance with the specification and manufactured by others not named will be considered only if pre-approved by the Engineer ten (10) days prior to bid date.

02. GENERAL-DUTY SAFETY SWITCHES

A. PROVIDE SWITCHES AS SHOWN ON DRAWINGS WITH THE FOLLOWING RATINGS:

1. 30 to 600 amperes

2. 240 volts ac maximum

3. 2- and 3-pole plus Solid Neutral (S/N)

4. Fusible and non-fusible

5. Mechanical lugs suitable for aluminum or copper conductors

B. Construction

1. Switch blades and jaws shall be visible and plated copper

2. Switches shall have a black handle through 100 A (except on plug-fuse type) that is easily pad-lockable with two 3/8-inch shank locks in the OFF position. Higher rating shall have a red handle that is easily pad-lockable with three 3/8-inch shank locks in the OFF position

3. Switches shall have defeatable door interlocks that prevent the door from opening when the handle is in the ON position

4. Switch assembly and operating handle shall be an integral part of the enclosure

5. Switches rated 200 A to 600 A shall have reinforced fuse clips

6. Switch blades shall be readily visible in the “ON” and “OFF” position

7. Switch operating mechanism shall be non-teasable, positive quick-make/quick-break type (except 30A plug-fuse type and compact design general-duty double-throw)

8. Fusible switches shall be suitable for service entrance equipment and be equipped with factory installed neutrals, as noted on drawings

9. All switches (except 30 A plug-fuse type) shall have hinged doors. Door padlocking capability shall be provided

10. Switches shall be suitable for systems capable of 100 kA with Class R Fuses (except 30 A plug-fuse type)

11. Double-make, double-break switch blade feature shall be provided (except 30 A plug-fuse type and compact design general-duty double throw)

12. 30 A to 100 A shall have Class R fuse rejection capability (not applicable to plug-fuse type)

C. Enclosures

1. All enclosures shall be NEMA 1 general purpose unless otherwise noted.

2. Other types, where noted, shall be:

a. NEMA 3R rainproof

b. NEMA 1 plug fuse indoor

3. Paint color shall be ANSI 61 gray

4. 30 A to 60 A NEMA 1 enclosures shall have tangential knockouts on the top, bottom and sides of the enclosure. NEMA 3R enclosures shall have tangential knockouts on the bottom and sides. (Not applicable to NEMA 1 plug-fuse type).

03. HEAVY-DUTY SAFETY SWitCHES

A. PROVIDE SWITCHES AS SHOWN ON DRAWINGS, WITH THE FOLLOWING RATINGS:

1. 30 to 1200 amperes

2. 250 volts ac, dc; 600 volts ac (30 A to 200 A 600 volts dc)

3. 2, 3, 4 and 6 poles (2, 3 and 4 poles on 800 A; 2 and 3 poles on 1200 A)

4. Fusible and non-fusible

5. Mechanical lugs suitable for aluminum or copper conductors.

B. Construction

1. Switch blades and jaws shall be visible and plated copper

2. Switches shall have a red handle that is easily pad-lockable with three 3/8-inch shank locks in the OFF position

3. Switches shall have defeatable door interlocks that prevent the door from opening when the handle is in the ON position (except for double-throw switches). Defeater mechanism shall be front accessible

4. Switches shall have deionizing arc chutes

5. Switch assembly and operating handle shall be an integral part of the enclosure base.

6. Switches rated 30 A to 600 A shall have reinforced fuse clips

7. Switch blades shall be readily visible in the “ON” and “OFF” position

8. Switch operating mechanism shall be non-teasable, positive quick-make/quick-break type. Bail type mechanisms are not acceptable

9. Fusible switches shall be suitable for service entrance equipment (except for 4-pole switches and 1200 A when used on 480Y/277 or 600Y/347 grounded WYE systems)

10. Switches shall have line terminal shields (except for non-fusible double throw switches)

11. Switches shall be suitable for systems capable of 200 kA at 480 V with Class J, L, R, or T fusing as applicable for single-throw switches; 100 kA at 600 V for double-throw switches

12. Embossed or engraved ON-OFF indication shall be provided

13. Double-make, double-break switch blade feature shall be provided

14. Fuse pullers shall be provided on all NEMA 4X and 12 switches through 200 A

15. Renewal parts data shall be shown on the inside of the door

C. Enclosures

1. All enclosures shall be NEMA 1 general purpose unless otherwise noted

2. Other types, where noted, shall be:

a. NEMA 3R rainproof

b. NEMA 4X watertight corrosion-resistant

1. 30 A to 200 A – ([304 stainless steel] [316 stainless steel] [non-metallic high impact strength fiberglass reinforced polyester]

2. 400 A to 1200 A – ([304 stainless steel] [316 stainless steel]

c. NEMA 12 dust-tight and oil-tight special industry (dual NEMA 12/3R rating through 800 A).

3. Paint color shall be ANSI 61 gray

4. 30 A to 100 A NEMA 4X, and 12 enclosures shall be provided with draw-pull latches.

D. (The following factory modifications are to be included:

1. Phenolic nameplates

2. Fungus proofing

3. Special paint color

4. Lock ON provisions

5. Key interlock system

6. Full viewing window (30 – 100 A)

7. Upper viewing window (200 – 800 A)

8. Lower viewing window (200 – 600 A)

9. Factory installed neutral assemblies

10. Class R fuse clips factory installed

11. Class T fuse clips factory installed

12. Class J fuse clips factory installed

13. Control pole factory installed

14. Factory installed fuse pullers

15. Factory installed crimp lug pad kits

16. Factory installed copper lugs

17. Factory installed ground lug kits

18. Custom lug configurations (not UL listed)

19. Factory installed auxiliary contacts

20. Cover mounted controls ([indicating lights] [selector switches] [pushbuttons]

21. Factory installed UL listed switching neutral bonding kit for 3 or 4 pole double throw switches requiring a switching neutral

*Note to Spec. Writer:

Select as required from the following enhanced-feature designs.

04. heavy-duty enviroline safety switches

A. ENVIROLINE STAINLESS STEEL SAFETY SWITCHES

1. Provide 30- to 400-ampere switches as shown on drawings with a NEMA 4X stainless steel enclosure and stainless steel operating mechanism. The enclosure shall be made of ([304] [316] grade stainless steel with a 304 grade stainless steel operating mechanism

B. Window Switches (Full Viewing Window)

1. Provide 30- to 100-ampere switches as shown on drawings with a full viewing window to provide blade visibility when the switch door is closed

2. Enclosures shall be:

a. NEMA 12/3R dust-tight and oil-tight special industry

b. NEMA 4X watertight corrosion resistant ([304] [316] grade stainless steel

C. Window Switches (Upper Viewing Window)

1. Provide 200- to 800-ampere switches as shown on drawings with an upper viewing window to provide blade visibility when the switch door is closed

2. Enclosures shall be:

a. NEMA 12 dust-tight and oil-tight special industry

b. NEMA 4X watertight corrosion resistant ([304] [316] grade stainless steel

D. Window Switches (Lower Viewing Window)

1. Provide 200- to 600-ampere switches as shown on drawings with a lower viewing window to provide visual verification of blown fuse indicators

2. Enclosures shall be:

a. NEMA 12/3R dust-tight and oil-tight special industry

b. NEMA 4X watertight corrosion resistant ([304] [316] grade stainless steel

E. Receptacle Switches

1. Provide 30- to 100-ampere, 3-pole, 600 volts ac, ([fusible] [non-fusible] switches with an interlocked receptacle

2. Receptacle shall be the following:

([Crouse-Hinds ARKTITE]

[M-R-S (Russellstoll) MAX-GARD]

[Appleton POWERTITE]

3. Enclosures shall be:

a. NEMA 12/3R dust-tight and oil-tight special industry

b. NEMA 4X ([304] [316] grade stainless steel corrosion resistant.

F. Non-Metallic Switches

1. Provide 30- to 200-ampere switches as shown on drawings with a NEMA 4X fiberglass reinforced polyester enclosure

05. Auxiliary Power Switches

A. PROVIDE 30- TO 100-AMPERE SWITCHES AS SHOWN ON THE DRAWINGS WITH A NEMA 3R ENCLOSURE

1. Switch shall incorporate a [2kVA CPT with 15A GFI receptacle][3kVA CPT with 20A GFI receptacle] to address NEC 210.63 requirements for maintenance receptacles.

2. Control transformer shall be segregated from the safety switch by means of grounded metal barriers. Provide screened and louvered ventilation openings for control transformer compartment to prevent heat buildup.

3. Receptacle shall be located in an end-use box on the side of the enclosure.

06. NAMEPLATES

A. NAMEPLATE SHALL BE FRONT COVER MOUNTED, CONTAINING A PERMANENT RECORD OF SWITCH TYPE, AMPERE RATING, AND MAXIMUM VOLTAGE RATING.

3. EXECUTION

01. FACTORY TESTING

A. STANDARD FACTORY TESTS SHALL BE PERFORMED ON THE EQUIPMENT PROVIDED UNDER THIS SECTION. ALL TESTS SHALL BE IN ACCORDANCE WITH THE LATEST VERSION OF UL AND NEMA STANDARDS.

02. INSTALLATION

A. THE EQUIPMENT SHALL BE INSTALLED PER THE MANUFACTURER’S RECOMMENDATIONS AND ALL NEC AND LOCAL CODE REQUIREMENTS.

( Note to Spec. Writer - Optional

( Note to Spec. Writer – Select one

( Note to Spec. Writer – Insert data in blanks

( Note to Spec. Writer – Select one

( Note to Spec. Writer – Select one or more

( Note to Spec. Writer – Select one

( Note to Spec. Writer – Select one

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