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

F. RUBBER TAPE: Scotch 2210.
G. ARC PROOFING TAPE: 3M “Scotch 77 Fire and Electric Arc Proofing Tape”. Medium
voltage cable shall be fireproofed in all manholes and handholes. Fireproofing shall be done
with a half-lapped layer of arc proofing tape, anchored at each end with a double wrap of 3M
“Scotch 69 Glass Cloth Electrical Tape”.
H. VINYL TAPE: Scotch 88.
I. INSULATING RESIN: Scotch 3576, 3577, or 3578.
J. POWER DISTRIBUTION BLOCKS: Ferraz Shawmut, Ilsco or Allen-Bradley; rated for 600
VAC and termination of copper conductors. Individual poles shall be constructed of tin plated
aluminum and mounted on an insulating base.
3.00 EXECUTION
3.01 INSTALLATION
A. For No. 10 and smaller, connect conductors with a twist-on spring wirenut. If a splice or tap is
below 3' above the final grade, fill the spring connectors with an electrical insulating resin so
that conductor and spring materials are encapsulated by the resin. Conductor splices and
taps inside the MCC, VFDs, panels, etc. shall be on the terminal strips or power distribution
blocks.
B. Splice 600 Volt conductors in junction boxes or at outlets only. All splices are subject to the
Engineer’s approval. Obtain approval from Engineer before installing any splices.
C. For No. 8 and larger, connect conductors with a split bolt type of connector or a mechanical,
set screw type connector. Wrap splices and taps with a single half-lapped layer or rubber
tape followed by successive layers of vinyl tape until a vinyl tape layer thickness of twice the
original conductor insulation thickness is achieved. If splice or tap is below 3' above the
finished grade, the tape or splice shall have a final outer coating or insulating resin.
D. Furnish and install power distribution blocks as required for tapping conductors at their load
connection point with conductors of smaller size. Install power distribution blocks with the
number of poles and sizes needed for connecting the phase, neutral, and ground conductors.
E. Pair shielded cable shield shall be broken at terminal strips only.
F. Application of tape shall be in accordance with the Manufacturer’s recommendations.
END OF SECTION
Wire Connections and Devices 26 05 19.01-2
DRP09328