Minneapolis Public Schools
Sanford Middle School Expansion & Renovations
October 28, 2014
SECTION 262813 - FUSES
PART 1 GENERAL
1.01 SCOPE
A.
Work under this section includes the furnishing of all fuses for all HVAC and electrical
equipment.
1.02 RELATED SECTIONS
A.
Section 260500 - General Requirements
B.
Section 262413 - Switchboards
C.
Section 262418 - Equipment Connections
D.
Section 262812 - Enclosed Switches and Circuit Breakers
E.
Section 262913 - Enclosed Controllers
F.
Section 262914 – Variable Frequency Drive – motor controllers
1.03 SUBMITTALS
A.
Submit shop drawings and product data in accordance with Division 1.
B.
Submit time current curves for all fuses being supplied as part of this project.
PART 2 PRODUCTS
2.01 ACCEPTABLE MANUFACTURERS
A.
Fuses - Bussmann/McGraw Edison, Brush, Mersen (formerly Ferraz-Shawmut) or Littelfuse.
2.02 FUSES
A.
Furnish and install secondary fuses in all fusible equipment sized as shown on the drawings.
B.
All fuses shall be current limiting non-renewable type with 200,000 ampere AIC interrupting
capacity and shall not be shipped installed in fusible equipment.
C.
Fuses shall be by the same manufacturer of the types specified below. Bussmann fuse
references are listed to establish type and quality.
© LKPB 2014 201402000
FUSES
262813 - 1
Minneapolis Public Schools
Sanford Middle School Expansion & Renovations
D.
October 28, 2014
Fuses 600 amperes and less shall be U.L. Class R rejection type or J type fuses.
Time Delay
Class RK-1
Bussmann
Low-Peak
LPS-RK-600V
LPN-RK-250V
E.
Low –Peak
LPJ-SP-600V
Fuses over 600 amperes shall be UL Class L (with pure silver links only).
Time Delay
Class L
Bussmann
Hi-Cap
KRP-C
F.
Apply specific fuses as follows:
Panel Feeders
- Low-Peak
Motors
- Low-Peak
Equipment
- Low-Peak
Special Use Non-Motor - (Class L)
G.
Provide a minimum of three additional spare fuses of the type, size, and rating for each set
installed.
H.
Provide a fuse cabinet for storing spare fuses and puller. Provide an insulating type universal
fuse puller. Fuse cabinet shall contain hinged and latched front cover, be designed for surface
mounting, and be made of code gauge steel, Bussmann #SFC, Littelfuse #LSFC, or Square D
#TC-36356B box and #TC-36356TS cover. Locate panel as directed by Owner or as located
on drawings.
PART 3 EXECUTION
3.01 FUSES
A.
The size, voltage and fuse type furnished for each device shall be indicated inside the cover of
that device with pressure sensitive tape.
B.
Spare fuses shall be turned over to the Owner.
C.
Install spare fuse cabinet adjacent to main switchboard or where shown on drawings. Label
cabinet as "FUSE CABINET" per instructions contained in Section 260553. Verify location
with Owner.
D.
Spare fuses shall be placed in the fuse cabinet in their original shipping containers.
END OF SECTION 262813
© LKPB 2014 201402000
FUSES
262813 - 2