Làm thế nào để chọn đúng loại ống nối cáp cho các dự án cơ sở hạ tầng công cộng?
Cable gland selection for public infrastructure requires fire-resistant materials, IP67/IP68 environmental protection, vibration resistance, corrosion protection, and compliance with stringent safety standards including EN 45545 for railways and NFPA codes for tunnels, with stainless steel and specialized polymer glands providing optimal performance for lighting systems, ventilation controls, monitoring equipment, and emergency systems in tunnels and bridges.