Designed to provide reliable support in underground vault applications, this cable racking system from Chance is engineered for durability and efficiency. Constructed from robust steel with a hot-dip galvanized finish in accordance with ASTM A-153 standards, it ensures long-lasting resistance to corrosion. With nine 16" diameter mounting holes conveniently arranged on 13-1/2" centers and eight support hook openings spaced 1-1/2" apart, this system allows for flexible installation options, including overlapping for connecting multiple racks. For a complete setup, support hooks and insulator pads are available separately, making it easy to customize the support system for specific cable management needs in handholes and manholes. This approach aligns with ANSI C135.35 standards, ensuring compliance and operational reliability.