Electrical systems, facilities, and methods with power...

Details Electrical systems, facilities, and methods with power... Electrical systems, facilities, and methods with power...

2007-09-27

2010-12-21

Patel, Dhiru R (Department: 2831)

Electricity: conductors and insulators

Earth grounds

C174S002000, C174S007000, C174S051000, C174S0050SG, C361S689000, C439S098000

Reexamination Certificate

active

07855337

ABSTRACT:
Power pedestals are provided with an electrical ground connection to rebar encased in a foundation slab of a facility to thereby establish a EUFER ground for the power pedestal. Many pieces of rebar may be present within the foundation slab and may be interconnected to form a rebar network. In addition to the EUFER ground provided by the rebar, other grounding techniques may also be included such as a ground ring formed by ground rods spaced around the foundation slab and interconnected by a buried conductor that encircles the foundation slab. The rebar may be electrically connected to the ground ring to establish the conductivity to the earth. The power pedestal and EUFER ground may be present at various facilities, such as those including outdoor electronics equipment closures such as remote terminals and base stations.

REFERENCES:
patent: 6177630 (2001-01-01), Stensgaard
JuiceBox Power Transfer Switch, Emerson Network Power, 2006.
Eufer Grounding, National Electrical Code section 250.50, Dec. 6, 2005.
Guidelines for Wiring Single Family Dwelling Units, Pikes Peak Regional Building Department, date unknown.
Building Department Schedule & Checklist of Inspections, date unknown.

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