ID: 80692

Practical Thunder Arrester Surge Protector Avoid Interference Telephone Fax Home Safety Rainny Days Easy Install Small

0.0 ( votes)
Price: US $25.88 / piece
Discount Price:
US $ 20.73 / piece
-20%
Quantity

Package includes:1 piece of Thunder Preventer
The product will be upgraded constantly, the appearance and color may be changed, please don't mind. And take a consideration before place the order if you have request for color or appearance.
 
This product is suitable for protecting all kinds of audio signal equipment (such as telephones, etc.) that are sensitive to electromagnetic interference and using RJ11 connectors, so as to avoid damage caused by induced overvoltage, operating overvoltage, and electrostatic discharge. It can be used to install RJ11 sockets on MODEM (ISDN, ADSL), DDN dedicated lines, fax machines, and telephone line terminal equipment.
 
Technical parameters: Model RJ45 network signal lightning protection device, protecting the target network signal
 
Rated working voltage Un: 5V
Maximum continuous operating voltage Uc: 7.8V
Maximum discharge current Imax(8/20us): 10KA
Impact limit voltage Up (10/700/ms): <20V
Insertion loss: 0.1dB
Response time: ~1ns
Protection pin: 1/2/3/6
Maximum transmission rate: 100MHz
Connector form: RJ45
Operating temperature range: -40℃~+85℃
At room temperature: humidity 30%-90%
Shell protection grade: IP20
Insulation resistance MΩ: ≥0.4
Near-end crosstalk dB: ≥60 (PASS)
Bandwidth FG: 100 M
Protection circuit: single
Installation instructions and precautions:
1) Installed in series between the lines of the protected equipment, the interface connection must be reliable, and the surge protector has input (IN) and output (OUT) marks. The output terminal is connected to the protected equipment, do not connect reversely. Otherwise, the surge protector will be damaged when lightning strikes, and the equipment will not be effectively protected.
2) If the loss increases due to poor connection of the plug socket and other factors, the protector should be reconnected or replaced.
3) The equipment should be disconnected when installing the ground wire to avoid damage to the equipment due to the introduction of strong currents such as electric welding from the ground wire end.
4) Before the surge protector string is connected to the protected equipment, the power must be turned off, and live operation is strictly prohibited.
5) The ground wire (PE) must be reliably connected to the ground wire of the surge protection system, and the length must be the shortest to achieve the best protection effect.
6) The user is not allowed to disassemble the fasteners of each part of the protector at will, so as to avoid damage and affect normal work.
 
Protector inspection:
1》Use the three-meter "Ω×1" to measure the corresponding input to output resistance of about 0Ω. If the resistance is too large or abnormal, the protector should be replaced.
2》Use a three-meter "Ω×10K" to measure the resistance of the wire to the shell, about 400kΩ; the resistance of the wire to the minefield and the shell to the minefield should be infinite. If the measured resistance does not match the above, the protector should be replaced.
3 "The lightning protector does not require special maintenance. If it is damaged by high voltage or lightning strikes, (when the LED indicator is off, it means that the lightning protection function has been lost). When the system equipment fails, the lightning protector can be removed to see if the equipment is working properly , If it can return to normal, it means that the lightning protector is damaged and the protector should be replaced.
 
 
main feature:
1. Large flow capacity and fast response
2. Using multi-level protection circuit, low residual voltage
3. Good workmanship and excellent performance
4. The grounding point is processed by a special process to avoid signal interference
5. Small size and easy installation
 
Installation and maintenance
In is the input terminal, Out is the output terminal, the input terminal is connected to the transmission line, and the output terminal is connected to the equipment.
A protector is connected in series at the signal output source equipment end and the protected equipment input end.
The grounding wire must be reliably connected to the grounding bus of the lightning protection system.
The protector does not require special maintenance. If it is damaged by high voltage or lightning, please replace it in time.
 
 
 
How to connect indoor and outdoor grounding wires:
It is best to be grounded separately. When it cannot be grounded separately, the indoor lightning protection grounding can be grounded with the ground wire of the three-core power cord;
Outdoors must be grounded separately, not with the ground wire of the lightning rod. The ground wire of the lightning arrester should not be mixed with other power wires, but separated.
The lightning protection grounding wire is as short as possible (its inductance is proportional to the length, and it is required to ground the wire as close as possible to minimize the inductance).
 
Note: Use a three-core grounding wire for grounding (without considering the distance, wire diameter, and electromagnetic induction to other wires), but that wire is mainly used for leakage protection, and it is prone to interference when mixed with lightning protection grounding. Counterattack accidents with electrical appliances.
 
Simple lightning protection grounding:
1. Pole monitoring
1. Simple lightning protection grounding can directly connect the grounding wire to the metal pole. 2. Outdoor monitoring in non-mine areas doesn't want lightning rods, and don't want to bury ground rods at each point, so several adjacent cameras can share a ground rod. But do not lead the ground wire to the monitoring room to ground it.
3. Do not leave the outdoor monitoring of the building. When routing the wires, take the ground wire at each point. It is best to find the grounding body before entering the computer room. Enter the monitoring host room if you can't find it, and look for the building steel bars and metal water pipes. , Power socket ground wire.
4. Strict engineering, grounding resistance is not higher than 4 ohms. Generally, the pole foundation is very shallow, which can not achieve great grounding effect. It is necessary to bury the grounding electrode at least 2 meters deep, which can be connected to the ground cage, and the lightning arrester can also be connected to the grounding electrode. If the grounding electrode reaches a depth of more than 2 meters, the ground potential will not strike back. The pole grounding is generally not as strict as required. If the grounding resistance is required to be less than 4 ohms, you will need to make a small ground net under the pole. Use galvanized parts, copper parts, and welding for the ground wire connection. Do not use rusty screws or tapes.
2. Indoor camera
1. Connect the ground wire of the lightning arrester to the 220V ground wire nearby. If there is no ground wire, you need to ensure that there is a ground wire at each point and connect it to the other ground wires in the computer room.
2. When there is no other ground wire to connect to, you can use a nail to nail the ground wire directly on the cement wall, which is much better than ungrounded wire.




  • Model Number: Thunder Preventer
  • Origin: Mainland China
  • Certification: NONE
  • Product Number: LM0390

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