IMG interface type antenna coaxial lightning arrester relay
platform platform outdoor antenna anti surge lightning
Product description
The IMG interface sky feed surge protector uses shielded enclosure
and built-in high speed overvoltage protection device. It has high
effective defense function for lightning high voltage pulse induced
on the feeder line. It can prevent the damage caused by the feeder
line induced lightning overvoltage on the antenna and the
transceiver. It is widely used in communication station, radar
station, PHS base station, mobile communication base station, GPS
base station, CDMA base station, PHS (PAS) base station, satellite
communication, microwave station and so on.
Product specification
| Model and specofocation | | TRSW-BNC |
| Frequency range | | DC-1.5 GHz |
| Working voltage | | 500V |
| Nominal discharge current | In(8/20μS) | 10kA |
| Insulation resistance | | ≥5000 MΩ |
| Dielectric withstanding voltage | | 1500V |
| Impedance | | 75Ω |
| Interface mode | | BNC.N.UHF.TNC and so on |
| Operating condition | | Temp:-40℃~+70℃ |
| | RH≤95%(25℃) |
| | Sea level elevation≤3km |
| Remarks | | Other max continuous operating voltage can be customized |
Working principle of product
The lightning protection device is based on the principle of
standing wave antenna and lightning wave spectrum design. The main
part is a short rod equivalent to the end of the 1/4 wavelength.
When the signal is sent out, a part of the impedance is reflected
back because the impedance is not fully matched, and the wave will
form a standing wave when the wave is superimposed on the incident
wave originally emitted. The amplitude of standing wave at each
point of the line is fixed first. For the transmission line with
terminal short circuit, the terminal is short circuited, so the
current is large and the voltage is small. For the signal end, the
voltage and the current are small.
That is, the most close to the open circuit of the signal terminal
impedance, so the loss is small, but for the lightning wave because
of its wide spectrum range, and most of the energy is concentrated
in the frequency band below 10HZ, so the short circuit rod is short
circuited to the lightning, and will not invade the equipment to
cause damage.
Product features
1. built in fast semiconductor protection device, with fast
response speed.
2. high transmission frequency, small insertion loss
3. extremely low stationed Bobbi, ensure that the lightning
arrester does not interfere with the normal operation of the
system.
Use of attention
1. grounding lines should be short, thick and straight, so as to
reduce the influence of distributed inductors on the ability of
lightning electromagnetic pulse.
2. in order to reliably prevent thunder and lightning, we can
connect each antenna output terminal and the input terminal of the
protected device to a lightning feeder. In areas where lightning is
less, there can be only one antenna without amplifier.
3. in the outdoor antenna lightning protection device must pay
attention to rain, don't let the internal corrosion damage caused
by rain water immersion.
Company profile
Thor is all about protecting against the damaging effects of power
transients. It is our goal and mission to connect our customer
challenges with high-quality, right-priced solutions and products –
completed by unrivaled customer service and technical support.
Incorporated in 2006, Zhejiang Thor Electric Co., Ltd has built
everything to offer a wide range of innovative and reliable surge
protection solutions and products.
