1100 psi.
d.
Flow rate (average):
ASTM D 1238, 0.30 decigram per minute.
e.
Density (average):
ASTM D 792, 920 kg/m3 57.5 pounds per cubic
feet.
f.
Burn rate:
ASTM D 635.
2.18.2
Wiring
a.
Terminal blocks shall be insulated, modular, feed-through, clamp
style with recessed captive screw-type clamping mechanisms.
Terminal blocks shall be rail mounted, and shall have end plates,
partition plates or enclosed sides for separation.
b.
Control wiring for 24-V circuits shall be 18 AWG minimum and shall
be rated for 300-V service.
c.
Wiring for circuits operating at more than 100 V shall be 14 AWG
minimum and shall be rated for 600-V service.
d.
Analog signal wiring circuits within control panels shall not be
less than 20 AWG and shall be rated for 300-V service.
e.
Instrumentation cable shall be 18 AWG, stranded copper, single or
multiple twisted, minimum 2-inch lay of twist, 100 percent
shielded pairs, and shall have 300-V insulation. Each pair shall
have a 20-AWG tinned copper drain wire, individual pair, and
overall insulation. Cables shall have an overall aluminum
polyester or tinned overall copper cable shield tape, 20-AWG
tinned-copper cable drain wire, and overall cable insulation.
f.
Nonconducting wiring ducts in control panels shall have slotted
side snap-on covers, fittings for connecting ducts, mounting clips
for securing ducts, and wire retaining clips.
PART 3
EXECUTION
3.1
INSTALLATION
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NOTE: Indicate access doors where required for
servicing mounted devices.
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Perform installation under the supervision of competent technicians
regularly employed in the installation of control systems. Provide
components for a complete and operational control system. Provide control
system complete and ready for operation, as specified and indicated.
Provide dielectric isolation where dissimilar metals are used for
connection and support. Penetrations through and mounting holes in the
building exterior shall be watertight. Control system installation shall
provide adequate clearance for control system maintenance by maintaining
access spaces between coils, to mixed-air plenums, and as required to
calibrate, remove, repair, or replace control system devices. Control
system installation shall not interfere with the clearance requirements for
mechanical and electrical system maintenance. Install devices mounted in
or on piping or ductwork, on building surfaces, in mechanical and
SECTION 15901N
Page 42
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