Electrical · E-MPDKY

Typical Grounding Detail

Materials

Reinforced Concrete Steel Glass / Glazing Metal (misc.)

Elements

Foundations / Footings Entrances Connections / Plates Reinforcing

Connections

Welded Connection

About this detail

Normal power service equipment, emergency power service equipment, transformers, and branch panels interconnect with grounding electrode conductors tied into water service entrances, gas service entrances, fire water service entrances, and other fluid-filled service entrances with jumpers installed around meters as required. A Ufer ground utilizes a three-zero bare copper conductor located in the bottom one-third of the foundation for a minimum of twenty feet, exothermically welded to rebar in two locations. Additional provisions include ground rods per NEC 250.52(A)(5), an intersystem bonding terminal, connections to building steel, and bonding to lightning protection systems.

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