Communication Line Lightning Protection Box Description:
HDX-C1100/50(100) type mine explosion-proof communication line lightning protection box is designed according to GB/T18802.21 surge protector standard. It is suitable for surge protection of telephone communication lines in intrinsically safe areas such as communication program-controlled exchanges, communication wiring cabinets, etc., so that they are protected from damage caused by induced over-voltage, operational over-voltage and electrostatic discharge, etc. The outer case of the product is a standard Ex-type lightning protection box. The outer box of the product is a standard Ex explosion-proof outer box, the internal integration of 50/100 pairs of communication line protection board, the interface form is a standard screw-fixed card interface, each module can protect 2 (1 pair) lines.
Communication Line Lightning Protection Box Specifications:
| Model No. | HDX-Cll0/50(100) |
| Nominal Working Voltage | 110v |
| Maximum Continuous Operating Voltage | 170v |
| Response time | ≤1ns |
| Installation Method | DIN 35mm rail |
| Cable length | 10mm |
| Cross-sectional area of wiring | 0.5mm2-2.5mm2 |
| Product Size | 500mmx400mmx150mm |
| Housing Material | Die-casting aluminum alloy |
| Protection Grade | Tp65 |
Communication Line Lightning Protection Box Features:
1. This equipment is suitable for surge protection of communication equipment in intrinsically safe areas.
2. Mining explosion-proof communication line lightning protection box is connected in series between the signal channel (external line) and the protected equipment.
3. mining explosion-proof communication line lightning protection box line end (LINE) and signal channel connected to the equipment end (EQUIP) and the protected equipment connected, can not be connected to the opposite. Installation of the two ends of the line must be laid separately, can not be tied together.
4. Reliable grounding, ground line to strive for short, thick, straight, in order to reduce the impact of distributed inductance on the lightning discharge.
5. Installation of grounding wire should be disconnected from the equipment, to avoid damage to equipment due to welding and other strong current introduced from the ground should occur.
6. The grounding resistance of the system shall not be greater than 4 ohms when the system adopts special grounding installation, and the grounding resistance shall not be greater than 1 ohm when the comprehensive grounding network is adopted.
7. This product does not require special maintenance. When the system fails to work, you can remove the lightning protection work, if you can return to normal, it means that the mine explosion-proof communication line lightning protection box is also damaged, should be replaced with the same specifications of the mine explosion-proof communication line lightning protection box.