HY10W-21/62 Zinc Oxide Arrester with Electrical Switchgear Euipment
Rated Voltage | Work Voltage | AC Current |
15KV | 42kV | 5A |
21kV | 62kV | 10A |
1. With the emergence of new equipment and new testing methods, it
is possible for the lightning arrester to carry out both
electrically tested conductance current and electrically tested
infrared temperature. In order to ensure the reliable operation of
the lightning arrester, the new operation of lightning arrester
within 3 months, and the annual Qiujianshi, should be in accordance
with the rules of the general test, and the data records of the
general test records, for the next test for comparison, which is
conducive to the detection of stable problems.
2. Using infrared thermal imager to measure temperature, we can
measure the small change of temperature and compare the difference
of surface temperature of lateral flange or porcelain cover. If the
temperature deviation is large, that is, the lightning arrester may
have defects, must be further checked, until the reasons for the
exclusion or replacement can be found to be able to hang. An
electrical appliance used to protect electrical equipment from high
transient overvoltage damage during lightning strikes, and to limit
the duration of continuation, and often the duration of
continuation.
3. The lightning arrester is sometimes also called the overvoltage
protector, the overvoltage limiter.The arrestor is connected
between the cable and the earth, usually in parallel with the
protected equipment. The lightning arrester can protect
communication equipment effectively. Once abnormal voltage appears,
the lightning arrester will act to protect. When a communication
cable or device is running at a normal operating voltage, the
lightning arrester does not work and is considered to be broken on
the ground. When a high voltage occurs and the insulation of the
protected equipment is endangered, the lightning arrester moves
immediately to direct the high voltage shock current to the ground,
thus limiting the voltage amplitude and protecting the insulation
of the communication cables and equipment. After the voltage
disappeared, the lightning arrester quickly returned to its
original state, making the communication line work normally.