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4
Belden™ Cable Outer Diameter (OD) Maximum Length
Capacitance (pF)
Inductance (µH)
87760
0.15" (3.7 mm)
260' (80 m)
<100 pF/ft ( <330 pF/m)
<0.2 µH/ft (<0.7 µH/m)
87761*
0.12' (2.9 mm)
400' (120 m)
<60 pF/ft (<200 pF/ft)
<0.2 µH/ft (<0.7 µH/m)
89182*
0.31' (7.8 mm)
1500' (450 m)
<20 pF/ft (<65 pF/m)
<0.3 µH/ft (<1 µH/m)
* You can order this cable from FFS.
Required wire
• 3 conductors: Power – 14 GA to 12 GA Max. – Black, White, and Green
• 1 conductors: Safety Ground – 12 AWG Green (2 may be required in some locations)
• As required conductors: Accessories – Type THHN, TFFN, or THWN, 18 AWG minimum
IMPORTANT
: Do not run other non-intrinsically safe (IS) wiring in the IS pull box.
Thread sealant (UL classified)
Use a non-hardening, “stay-soft,” PTFE thread sealant, or equivalent, to seal and waterproof
all tank riser pipe threads. The thread sealant (or “pipe dope”) should also be chemically
non-reactive to the product in the tank. Apply thread sealant to all outdoor electrical conduit
fitting threads including the hole plugs at the weatherproof junction boxes.
Riser pipes
ANSI Schedule 40 (or chemically non-reactive) 4 inch (101.6 mm) (8 NPT) riser pipes for liquid
level probes. See the appropriate leak detection sensor installation manual for information on
required riser pipes and riser cap adapters.
Weatherproof Junction Boxes
Minimum 16 cubic inch (262 cm³) weatherproof junction box, cover, and cover gasket for the
manholes of: liquid level probes and leak detection sensors. Also use ¾ to ½ inch (12.7 mm to
19.05 mm) bushings for probe/sensor compression fittings.
Use a weatherproof metal pull box for combining several circuits that will run into the EVO
TM
600
or EVO
TM
6000 console through one or more conduits. Use a separate weatherproof metal pull
box to combine intrinsically safe (IS) liquid level probe and leak detection sensor wiring. Do not
run other non-intrinsically safe wiring within the IS pull box. Run ½ or ¾ inch (12.7 mm or 19.05
mm) IS probe or sensor conduit from the manholes to the IS pull box, and then run up to four ½
or ¾ inch (12.7 mm or 19.05 mm) conduits to the console’s IS conduit knockouts.
Conduit
Rigid metal conduit (RMC) - male NPT threaded: use ½ or ¾ inch (12.7 mm or 19.05 mm) for
IS probe and sensor wiring to the console (from the manholes, use ½ or ¾ inch conduit), and
use ½ or ¾ inch (12.7 mm or 19.05 mm) for non-intrinsically safe accessories and power wiring.
Use conduit hardware that is appropriate for the installation and meets local, state and federal
requirements.
Содержание EVO 600
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