Optical fiber cable wiring three kinds of lightning protection measures

AddTime£º27-07-2016   Author£ºadmin

With the development of network, light soldering as integrated wiring system for a medium to transmit data, because has the advantages of high transmission rate, distance, etc., in today's more and more people to use, as we all know, light soldering is not conductive, can avoid the impact of current, fiber optic cable has good protective properties, it is metal components to ground insulation value is relatively high, lightning current is not easy to enter the cable (cable with reinforced core), especially buried cable has an armor layer, it has a very good protective measures.

Three measures today we hoyoke light to decomposition in the integrated wiring construction in optical fiber cable.

The first measures of lightning protection for directly built-in cable line:

1. In accordance with the provisions of the YDJ14-91. In the fiber optic cable moistureproof layer, armored layer and strengthen the core should do electrical fault processing, and don't answer, the insulation state of the ground, to avoid the accumulation of lightning current cable, can be avoided by mine drainage lines and cable metal structure piece of ground loop resistance difference caused the ground lightning current by the grounding device to introduce the cable.

2. Bureau grounding mode, light in the brazing metal parts in joint distribution sites shall be connected to optical repeater section drill to strengthen the core, moistureproof layer, armored layer remain connected state.

Second. Measures for overhead optical cable:

For the overhead catenary should be electrically connected and every 2km grounding, grounding can be connected directly or through proper surge protection grounding and suspension with the protective effect of overhead ground wire.

Third measures to enter the terminal box cable:

Terminal box should be grounded, in lightning current into the cable metal layer, terminal box grounding can be rapidly discharged lightning current and play a protective role, the buried cable has an armor layer, and the reinforcing core and outer protective sleeve for PE (polyethylene) sheath, an effective anti-corrosion and anti rat.

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