26052608 – Power Manhole For High Water Table Grounding With Non-metalic Racks

A technical diagram outlining the grounding system for a power manhole designed for high water tables with non-metallic racks. The diagram includes several sectional views and annotations that illustrate the positions and connections of various components. The central part of the diagram shows a cross-section of the manhole with grounding cables connected at multiple points. Key components include #4/0 AWG bare copper cables, which are indicated to be positioned 9 inches above the floor of the manhole, and risers that provide support every 24 inches. There are connections to the manhole cover frame and extension ring steps. The duct bank/ducts are labeled, and a note describes the use of cable termination to the manhole frame and other structural parts. The inset image specifies the use of materials and methods for securing grounding components, such as O.Z. Gedney KGM clamps and S.S. rawl bolts.