DL8000 Preset Instruction Manual
2-22
Installation and Use
Revised February-2016
2.7.6
25B
Wire Conduit Selection and Installation
Following are recommendations for conduit installation:
Ensure that all conduit and the associated assembly and installation
materials used for the installation of the DL8000 are in new
condition and adhere to the manufacturer's quality standards.
Ensure that all conduit runs have an explosion-proof sealing
(potting) fitting located within 50 mm (2 inches) distance from the
conduit entrance to the DL8000.
Ensure that the conduit installation is vapor tight, with threaded hub
fittings, sealed conduit joints and gaskets on covers, or other
approved vapor-tight conduit fittings.
Square all conduit cutoffs. Cutoffs must be made by a cold cutting
tool, hacksaw, or by some other approved means that does not
deform the conduit ends or leave sharp edges.
Coat all conduit fitting threads, including factory-cut threads, with a
metal-bearing conducting grease (such as Crouse-Hinds STL or
equivalent) prior to assembly.
Temporarily cap the ends of all conduit runs immediately after
installation to prevent accumulation of water, dirt, or other
contaminants. Swab out conduits prior to installing the conductors.
Where applicable, install explosion-proof seals in the conduit.
Install drain fittings at the lowest point in the conduit run and install
seals at the point of entry to the DL8000 to prevent vapor passage
and accumulation of moisture.
Use liquid tight conduit fittings (such as Myers Scru-tite
®
or
equivalent) for conduit which is exposed to moisture.