GE H-2906B, DISTRIBUTI ON SURGE ARRESTERS
See Notes
3ond 4
NOTES
1.
The Ground connection should have flexibility
as
shown, to assure proper dis
connector operation. Care should be taken to keep the Ground connection a m ini
mum of one
(1)
inch away from spun-metal cap, to avoid shorting out disconnector.
2.
For proper operation of this arrester, there should
be
a minimum of four
(4)
inches
clearance directly below the bottom of the arrester.
3.
To remove the line lead, lift up the edge of the bird-proofing cap off the line lead and
unscrew the insulating cap off the stud.
4.
Replace the bird-proofing cap. Push the cap on the stud as far
as
it will go.
Fig.
3.
Outline drawing of a direct-connected ar
rester with bird-proofed terminals, insulated bot
tom cap, insulated line lead and standard
EEI
NEMA
mounting bracket. Some models do not in
clude all of these accessories.
In
addition to the above, the installation of arres
ters for protection of dry-type transformers and
rotating machines should be made in accordance with
N:FP A No. 70 National Electrical Code, and local
ordinances where applicable.
OPERATION
The arrester is energized unless disconnected
from the line.
Where guard rails or screens are
used or required, they should be grounded and suita
ble electrical clearances maintained.
MAINTENANCE
Before inspecting or handling the arrester, dis
connect it from the line; and, as a safety precaution,
ground the line terminal.
The arrester should be
completely disconnected electrically and removed
fr.om the hanger for a more thorough examination.
There is no simple field test which will check the
protective characteristics of the arrester.
STORAGE
Arresters, if left in shipping containers, should
be stored indoors and in a dry location for protection
of the cartons.
The arresters themselves are
weatherproof.
RE-USE
While field practice has shown that arresters are
often reinstalled with no testing, for trouble-free
performance it is recommended that arresters be
tested as described in GET-2529 after the unit is
removed from a system and before re-use.
GENERAL ELECTRIC COMPANY
PROTECTIVE EQUIPMENT PRODUCTS DEPARTMENT
PITTSFIELD, MASS. 01201
GENERAL
f/j
ELECTRIC
3-72
(lOM)-5
www
. ElectricalPartManuals
. com
