©2020 Hubbell Incorporated.
Because Hubbell has a policy of continuous product improvement,
we reserve the right to change design and specifications without notice.
Printed in the U.S.A. | TD_01_127_E
For product inquiries, please contact your local sales
representative or customer service representative.
hubbellpowersystems.com
These instructions do not purport to cover all details or variations in equipment nor to provide for every possible contingency to be met in connection
with installation, operation or maintenance. Should further information be desired or should particular problems arise which are not covered
sufficiently for the purchaser's purposes, the matter should be referred to Hubbell Power Systems, Inc.
Single Rated Arresters
For base-mounted arresters, shim as necessary under all but one
foot to obtain perpendicularity to the foundation.
Multi Rated Arresters
Special multi-rated arresters have two or more units, of which
one or more of the units can be shorted by a supplied shorting
bar to obtain an arrester voltage rating that is lower than the
voltage rating of the arrester with the shorting bar removed.
The shorting bar is connected to the arrester using terminals
provided. The outline drawing supplied with the arrester indicates
the locations for installation of the terminals.
Carefully check that the unit is vertical, shimming under all but
one foot if necessary. Repeat this procedure for additional units
Grading Rings
Depending on the arrester voltage rating and length, a grading
ring may be required on the line end of the arrester. The outline
drawing identifies the proper location to install the grading ring.
Install the ring with the provided hardware. Grading rings are
shipped on a separate pallet when required.
Discharge Counters
An insulating base is required when installing a discharge counter
with arresters. Both of these are accessories and are available
through your HPS sales person. Install the discharge counter and
insulating bases as shown on outline drawings.
Periodic Inspection, Maintenance And Removal
Before inspecting or handling, disconnect the arrester from
the line. When a metal-oxide arrester is disconnected from an
energized line, it is possible for a small amount of static charge
to be retained by the arrester. As a precautionary measure,
install a temporary ground on the line end of the arrester after it
is disconnected from the line. This will ensure that any retained
charge is discharged to ground.
Remove the temporary ground
before the arrester is re-installed.
These arresters do not require testing, and no test that applies
power voltage in excess of maximum arrester voltage rating
should be made without consulting Hubbell. There is no single
field test that will indicate the complete operating characteristics
of the arrester.
Storage
EVP arresters may be stored outdoors if suitable precautions
are taken to prevent deterioration of the packing material. The
arresters should be covered with a waterproof covering to keep
them dry, clean, and free from litter until used. In climates where
outdoor temperature and humidity extremes rapidly deteriorate
the packing material, it is recommended that arresters to be
stored outdoors be removed from their packing and be bolted
(vertically) to a skid.
Packaging
Most EVP packaging is recyclable in accordance with federal,
state and local regulations. Please adhere to all applicable
regulations.
Hubbell Power Systems, Inc.
1850 Richland Avenue, East
Aiken, SC 2980
!
CAUTION
Multi-unit arresters must be erected in the exact
order identified on the outline drawing and on the
nameplate attached to the lower end fitting of the
bottom unit.
!
WARNING
Always be certain that the ground connection is firmly
made before connecting the arrester to an energized
line. If an insulating unit is used at the ground end
to permit use of a discharge counter, the discharge
counter must be connected (or the insulating unit
shorted out) before connecting the arrester to an
energized line.
