HomeMy WebLinkAbout26 29 10 Motor Starters and DisconnectsBEARDSLEY DESIGN ASSOCIATES
CORNELL – NCP MOTOR STARTERS AND DISCONNECTS
STANDARD SPECIFICATIONS 26 29 10 – PAGE 1 of 3
MARCH 29, 2013
SECTION 262910 - MOTOR STARTERS & DISCONNECTS
PART 1 GENERAL
1.1 RELATED DOCUMENTS:
A. The Contract Drawings and the General Provisions of the Contract,
including the General Conditions of the Contract for Construction,
Supplementary Conditions, Special Conditions and Division 1
Specification Sections apply to the work of this Section.
B. The Work of Section 26 01 01 - Electrical Basic Materials and Methods
applies to the Work of this Section.
1.2 WORK INCLUDED:
A. Provide motor starters and disconnects, including all work shown,
specified, or required for proper system operation.
1.3 REFERENCE STANDARDS:
A. The combination starters and protection devices in this specification shall
be designed and manufactured according to latest revision of the
following standards (unless otherwise noted).
1. ANSI/NFPA 70 - National Electrical Code. - Latest issue
2. CSA C22.2 No. 14 - Industrial Control Equipment. - Latest issue
3. NEMA ICS 2 - Industrial Control and Systems: Controllers,
Contactors and Overload Relays, Rated Not More than 2000 Volts
AC or 750 Volts DC. - Latest issue
4. UL 508 - Industrial Control Equipment. - Latest issue
1.4 SUBMITTALS
A. Provide submittals for the following:
1. Disconnect Switches
2. Starters
PART 2 PRODUCTS
2.1 MANUFACTURERS:
A. All products in this section shall be by General Electric Company, Square
D or Cutler-Hammer. These Manufacturers are University Standard, no
other Manufacturers shall be accepted.
2.2 CLASSIFICATION/ASSEMBLY:
BEARDSLEY DESIGN ASSOCIATES
CORNELL – NCP MOTOR STARTERS AND DISCONNECTS
STANDARD SPECIFICATIONS 26 29 10 – PAGE 2 of 3
MARCH 29, 2013
A. All products to be heavy duty grade classification, NEMA type as
scheduled on drawings. General duty products not accepted.
B. All products shall be factory assembled and wired and shall be UL
approved. Assemblies fabricated by Contractor shall not be accepted.
C. Units shall be horsepower rated for load served, current rating and poles
as shown on plans.
2.3 DISCONNECT SWITCHES (NON-FUSIBLE):
A. Visible blade with dual color, red/black position indicator. Unit shall be
padlockable in "off" position.
B. Unit shall be the heavy-duty version.
C. Where shown provide auxiliary interlock kits.
D. Rating: 600 Volts for all loads served.
E. Make: Square D Class 3110 or acceptable manufacturer in G.E. or
Cutler-Hammer.
2.4 DISCONNECT SWITCHES (FUSIBLE):
A. Visible blade with dual color, red/black position indicator. Unit shall be
padlockable in "off" position.
B. Unit shall be the heavy-duty version.
C. Provide motor overload elements and fuse clips for Class R fuses.
D. Where shown provide auxiliary interlock.
E. Rating: 240 Volts for 208 and 240 Volt loads.
600 Volts for loads above 240 volts.
F. Make: Square D Class 3110 or acceptable manufacturer in G.E. or
Cutler-Hammer.
2.5 MANUAL MOTOR STARTERS:
A. Motor control switch and Motor overload element in single enclosure.
B. Make Square D class 2510 or acceptable manufacturer in GE or Cutler-
Hammer.
2.6 COMBINATION MAGNETIC MOTOR STARTER/FUSIBLE DISCONNECT
SWITCH:
BEARDSLEY DESIGN ASSOCIATES
CORNELL – NCP MOTOR STARTERS AND DISCONNECTS
STANDARD SPECIFICATIONS 26 29 10 – PAGE 3 of 3
MARCH 29, 2013
A. Provide motor overload elements and fuse clips for Class R fuses.
B. Visible blade with dual color, red/black position indicator. Unit shall be
padlockable in "off" position.
C. Parts subject to wear or arching shall be removable and replaceable.
D. Where shown provide auxiliary interlock kits.
E. Provide 24 or 120 volt control transformer as shown and 24 or 120 volt
contactor coil, provide fuses for transformer.
F. Provide cover mounted HOA switch.
G. Make: Square D Class 8538 or acceptable manufacturer in GE or Cutler-
Hammer.
2.7 FUSES:
A. Dual Element, time delay.
B. Type and size as required.
C. Make: Buss Fustron, Shawmut Gould, or Brush Reliance.
PART 3 EXECUTION
3.1 INSTALLATION:
A. Mount Manual Motor Starters, Magnetic Motor Starters and Disconnects
on substantial mount frames provided by the Electrical Contractor, with
clearances according to the NEC.
B. Circuit according to the NEC.
END SECTION 26 29 10