Construction and installation of lightning protection systems

JSC commercial construction HKD is the construction and installation of lightning protection systems prestige in the North today. HKD equipped facility, modern equipment and comprehensive, best service for the design, construction, HKD also staffs and employees of professional, experienced, enthusiastic and discipline.

Lightning protection system for a building, factory, or a very important work it safe for work when a disaster occurs.

A. The system protects the building against the effects of lightning must include:

- Protection of the structure against direct lightning strikes;
- Protect the power system from direct and indirect lightning. The basic principle of an established protected against the risk of lightning strikes is to prevent energy from lightning affect sensitive electronic equipment. To achieve this, lightning protection systems need to:
- Determine the current and the channel (position) which is capable of lightning through which to release to the ground is the largest (to avoid the vicinity of sensitive electronic equipment);
- Implement equipotential link of the process of establishing lightning protection systems; Link this class is to implement link grounding wiring (connection between the grounding system), and this device class valve protection device can be pulsed (SPDS) or gas discharge tube (Spark gaps).
- Minimize the impact caused by the indirect effects by installing filters or SPDS. Two protection systems used to eliminate or limit the pressure: they are called building security systems - lightning protection system directly (to the outside of the building) and system protection devices electrical equipment (for inside the building).

B. Solution lightning protection for buildings
1. Based Design
- Based on the data construction design.
- Based on materials geological survey.
- Based on the current lightning protection standards as follows:
- BC 68-174 / 1998 lightning protection standards of the General Post Office.
- TCXD 46-1984 lightning protection standards of the Ministry of Construction.
- NF C17-102 / 1995 standards National Lightning Safety France.
- ISO 4756-89 standards for electrical safety grounding current Vietnam.
- Ratings protection c / t: 3rd Property pursuant to current standards
2. The note on protected areas
       When calculating consider work location, altitude and architecture to fully calculate the radius of protection 3 levels include: Level 1 (Leve 1), level 2 (Leve 2), Level 3 (Leve 3), Range 4 (lever 4). Use standard IEC 21186-96 NFC 17-102 French or to calculate combined with the current standards of Vietnam. Note on the selection of the location, altitude lightning collecting needle set and a minimum height of metal, air gap between the columns and metal objects because of this neighborhood decided to protect the safety of the works.

JSC commercial construction HKD consulting, construction and installation of a lightning protection systems safely and efficiently.

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