Original Version
Rule 59.4-A2
59.4-A2)
Grounding Electrodes: Ground electrodes
on common neutral systems shall be one-piece corrosion-resisting metal rods or
pipes (or equivalent in physical and electrical properties) not less than 5/8
inch in diameter by 8 feet in length and driven to a minimum depth of 8 feet
below the surface of the ground.
Pole-butt plates or wrappings shall not be used either in lieu of the
aforesaid rods or pipes or as electrodes supplementary thereto.
On branch circuits
extending from the grid where return metallic paths arc not available, the
driven ground rod, pipe, or equivalent shall be located not less than 24 inches
from the surface of the pole. Where two or more such rods are installed,
they shall be located at not less than 6-foot centers and separation required
from the surface of the pole shall not be held to apply to the connection
between rods.
Strikeout and Underline Version
Rule 59.4-A2
59.4-A2)
Ground Rods (Grounding Electrodes):
Ground electrodes rods on common neutral systems shall conform
to each of the following requirements:
a) Ground Rods shall be one-piece corrosion-resisting metal rods or pipes (or equivalent in physical and electrical properties).
b) Ground Rods shall not be less than 5/8 inch in diameter by 8 feet in length
c) Ground Rods and shall be driven into the ground so that one end of the ground is at to a minimum depth of 8 feet below the surface of the ground.
d) Pole-butt plates or wrappings shall not be used either in lieu of the aforesaid ground rods, or pipes, or as electrodes supplementary thereto.
e)
On branch circuits extending from the grid where return metallic paths
arc not available, the driven ground rod, pipe, or equivalent shall be located not
less than 24 inches or more from the surface of the pole. This 24 inch clearance does not apply to
the grounding conductor between ground rods.
f)
Where two or more such ground rods are installed, they shall be
located at not less than 6-foot centers and separation required from the
surface of the pole shall not be held to apply to the connection between rods.
Final Version
Rule 59.4-A2
59.4-A2) Ground Rods (Grounding Electrodes): Ground rods on common neutral systems shall conform to each of the following requirements:
a) Ground Rods shall be one-piece corrosion-resisting metal rods or pipes (or equivalent in physical and electrical properties).
b) Ground Rods shall not be less than 5/8 inch in diameter by 8 feet in length
c) Ground Rods shall be driven into the ground so that one end of the ground is at to a minimum depth of 8 feet below the surface of the ground.
d) Pole-butt plates or wrappings shall not be used either in lieu of the aforesaid ground rods, or pipes, or as electrodes supplementary thereto.
e) On branch circuits extending from the grid where return metallic paths arc not available, the driven ground rod, pipe, or equivalent shall be located 24 inches or more from the surface of the pole. This 24 inch clearance does not apply to the grounding conductor between ground rods.
f) Where two or more such ground rods are installed, they shall be located at not less than 6-foot centers.