IEEE 81.2-1991 PDF

$126.00

IEEE Guide for Measurement of Impedance and Safety Characteristics of Large, Extended or Interconnected Grounding Systems
standard by IEEE, 06/25/1992

Document Format: PDF

Description

New IEEE Standard – Inactive-Withdrawn.Practical instrumentation methods are presented for measuring the ac characteristics of large, extended or interconnected grounding systems. Measurements of impedance to remote earth, step and touch potentials, and current distributions are covered for grounding systems ranging in complexity from small grids (less than 900m 2), with only a few connected overhead or direct burial bare concentric (2) neutrals, to large grids (greater than 20 000m 2), with many connected neutrals, overhead ground wires (sky wires), counterpoises, grid tie conductors, cable shields, and metallic pipes. This standard addresses measurement safety; earth-return mutual errors; low-current measurements; power-system staged faults; communication and control cable transfer impedance; current distribution (current splits) in the grounding system; step, touch, mesh, and profile measurements; the foot-equivalent electrode earth resistance; and instrumentation characteristics and limitations.

Product Details

Published:
06/25/1992
ISBN(s):
9780738106618
Number of Pages:
112
File Size:
1 file , 2.1 MB
Product Code(s):
STDWD14944
Note:
This product is unavailable in Russia, Belarus