Richards 137NP, Инструкция по эксплуатации, Страница: 11 / 53

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lower terminals when these protectors are set upright on the floor. These feet may be
removed, when these protectors are bolted in position, to provide clearance for making cable
connections.
Equipment-mounted protectors will not stand unsupported on the floor. When handling or
resting these protectors on the floor, be careful not to damage the lower barriers or terminals
and, if necessary, place a block under the channel framework
If the protectors are not to be used for some time, store in the packaging in which received.
B. Transformer Mounted Protectors
Submersible and Non-Submersible Units
Remove the breaker unit before mounting the enclosure of transformer mounted protectors
on the transformer. Then remove the throat plate from the rear of the enclosure. The throat
gasket is supplied with the network transformer. Mounting hardware is shipped in a separate
bag including the lower supporting feet and the necessary hardware for securing the protector
to the transformer.
The transformer throat gasket supplied with the network transformer should be treated with
Glyptal and assembled to the clean surface of transformer throat flange. This gasket will be
held in position by the dowel pins on this flange.
Lift the protector enclosure and guide it into position using the dowel pins provided on the
transformer throat flange. Then tighten all throat bolts down evenly so that the throat gasket
is compressed from about 40 percent to 50 percent of its thickness. Add the feet at the
bottom of the enclosure using the proper number of spacers between the bottom of these feet
and the transformer.
Just before placing the unit into the protector, clean the transformer terminals with the back
of the bus bar of the protector. Use a brass wire brush and then wipe with a clean cloth.
C. Separately Mounted Protectors
Separately mounted network protectors may be mounted on a suitable framework or against
the wall. The submersible protectors are secured in place by the two lugs at the bottom back
of the enclosure. The non-submersible protectors are secured in place by mounting either in
a pipe framework or placing bolts through the holes provided in the back of the channel
framework
After submersible, separately mounted, protector enclosures are permanently mounted the
feet at the bottom of the case may be removed for better access to the terminals.