The total length of project perimeter is 1000m. The factory is a petrochemical and chemical processing and production enterprise. It belongs to inflammable and explosive area. Committed to the development, design and production of fiber optic perimeter products in petroleum and petrochemical industry, JingAnNeng has nearly 10 years of successful application experience in this field. The project adopts the solution of detection and alarm by integrated potential-free fiber optic cable which is in line with the actual requirements of the project perimeter. The system adopts third-generation environmental adaptive and analysis technology which solves the issue of accuracy rate and false alarm rate of fiber optic perimeter alarm thoroughly.