final bid specs 09328.pdf - Freese and Nichols, Inc.

O. THREADED NIPPLES: As manufactured by Allied or Triangle. Aluminum Conduit nipples
shall have two (2) independent sets of threads. Running threads shall not be used. Utilize
the conduit union when joining two (2) fixed conduits in a continuous run.
P. ACCESSORIES: Reducers, washers, etc., shall be cadmium-plated, malleable iron.
Q. IDENTIFYING TAPE FOR BURIED CONDUITS: 6" wide, polyethylene with continuous
printing along the length of the tape, as manufactured by Brady "Identoline" or Sentry Line
"Terra Tape". Use red with black letters for buried electrical power conduits. Use green with
black letters for buried electric instrumentation and communication conduits.
R. CONDUIT DRAINS: Conduit drains shall be 316 stainless steel as manufactured by Crouse
Hinds ECD Universal, or approved equal.
S. DUCT BANK SPACERS: Interlocking module spacers as manufactured by Formex, or
approved equal.
T. LINK SEAL: Link seal shall be modular, mechanical type, consisting of inter-locking synthetic
rubber links shaped to continuously fill the space between the conduit and the wall opening.
Link seal shall be suitable for use in a core-drilled and pre-cast wall openings and shall be
manufactured by Pipeline Seal & Insulator, Inc or approved equal.
3.00 EXECUTION
3.01 CONDUIT INSTALLATION SCHEDULE
Conduit types shall be installed in accordance with the following schedule:
A. BURIED CONDUIT: PVC Schedule 40 or PVC coated rigid aluminum unless noted
otherwise.
B. ABOVE GRADE CONDUIT: Rigid Aluminum unless noted otherwise.
C. PVC COATED RIGID ALUMINUM CONDUIT: Shall be used for all underground conduit
bends 45° or more where the conduit ultimately terminates to aluminum conduit; and for
conduit stub-ups through concrete and concrete wall penetrations.
D. PVC COATED RIGID STEEL CONDUIT: Shall be used for all underground conduit bends
45° or more where the conduit ultimately terminates to aluminum conduit above grade and
schedule 40 PVC below grade. All conduit in corrosive areas shall be PVC coated rigid steel
conduit, no exceptions.
E. RIGID ALUMINUM CONDUIT: May be used in all locations. PVC coated rigid aluminum
conduit shall be used in corrosive environments or where in contact with concrete.
F. RIGID NONMETALLIC CONDUIT: May be used in non-hazardous locations, installed single
or grouped either underground or encased in concrete.
G. LIQUID TIGHT FLEXIBLE METALLIC CONDUIT: Shall only be used to equipment in nonhazardous
locations not subject to physical damage or excessive temperatures, requiring
vibration isolation unless otherwise indicated, 6’-0” maximum length. The bending radius
shall be in accordance with Chapter 9, Table 2 of the NEC and shall not deform or alter the
flex jacket.
Conduits 26 05 33.01-3
DRP09328