Original Version
Rule 54.8-B4b
54.8-B4b) Residential Premises: On premises used for
residential purpose only, service drops of 300-750 volts shall be maintained
at a vertical clearance of not less than 8 feet over all buildings and structures.
The clearance above buildings of service drops of 0-300 volts
shall be not less than the distance specified in Table 10.
|
Table 10 |
|||
|
Type of Roof |
Minimum clearance above |
||
|
Building Served |
Other Buildings on Premises served |
Buildings on other premises |
|
|
Metal roof 3/8 pitch or less (a) |
8 ft. |
8 ft. |
8 ft. |
|
Metal roof, more than 3/8 pitch |
2 ft. |
2 ft. |
8 ft. |
|
Nonmetallic roof, 3/8 pitch or less |
(b) |
2 ft. |
8 ft. |
|
Nonmetallic roof, more than 3/8 pitch |
(b) |
2 ft. |
2 ft. |
a. 3/8 pitch is a approximately 37 degrees from the horizontal.
b. No limit specified but the greatest clearance should
be obtained.
Service Drops are not required to clear buildings on residential
premises any specified horizontal distance, but shall be so installed that
they clear fire escapes, exits, windows, doors, and other points at which
human contact might be expected, a horizontal distance of not less than 3
feet.
Strikeout and Underline Version
Rule 54.8-B4b
54.8-B4b) Residential Premises: On premises
used for residential purpose only, service drops of 300-750 volts shall be
maintained at a vertical clearance of not less than 8 feet over all buildings
and structures.
The clearance above buildings of service drops of 0-300 volts shall be not
less than the distance specified in Table 10.
|
Table 10 |
|||
|
Type of Roof |
Minimum clearance above |
||
|
Building Served |
Other Buildings on Premises served |
Buildings on other premises |
|
|
Metal roof 3/8 pitch or less (a) |
8 ft |
8 ft. |
8 ft. |
|
Metal roof, more than 3/8 pitch |
2 ft. |
2 ft. |
8 ft. |
|
Nonmetallic roof, 3/8 pitch or less |
(b) |
2 ft. |
8 ft. |
|
Nonmetallic roof, more than 3/8 pitch |
(b) |
2 ft. |
2 ft |
a. 3/8 pitch is a approximately 37 degrees from the horizontal.
b. No limit specified but the greatest clearance should
be obtained.
Service Drops are not required to clear buildings on
residential premises any specified horizontal distance, but shall be so installed
that they clear fire escapes, exits, windows, doors, and other points at
which human contact might be expected, a horizontal distance of not less
than 3 feet. Service drops above a horizontal plane through the
top extremity of an opening should maintain the maximum practical radial
clearance, which in no event shall be less than 1 foot.
Final Version
Rule 54.8-B4b
54.8-B4b) Residential Premises: On premises
used for residential purpose only, service drops of 300-750 volts shall be
maintained at a vertical clearance of not less than 8 feet over all buildings
and structures.
The clearance above buildings of service drops of 0-300 volts shall be not
less than the distance specified in Table 10..
|
Table 10 |
|||
|
Type of Roof |
Minimum clearance above |
||
|
Building Served |
Other Buildings on Premises served |
Buildings on other premises |
|
|
Metal roof 3/8 pitch or less (a) |
8 ft. |
8 ft. |
8 ft. |
|
Metal roof, more than 3/8 pitch |
2 ft. |
2 ft. |
8 ft. |
|
Nonmetallic roof, 3/8 pitch or less |
(b) |
2 ft. |
8 ft. |
|
Nonmetallic roof, more than 3/8 pitch |
(b) |
2 ft. |
2 ft. |
a. 3/8 pitch is a approximately 37 degrees from the horizontal.
b. No limit specified but the greatest clearance should
be obtained.
Service Drops are not required to clear buildings
on residential premises any specified horizontal distance, but shall be so
installed that they clear fire escapes, exits, windows, doors, and other
points at which human contact might be expected, a horizontal distance of
not less than 3 feet. Service drops above a horizontal plane through
the top extremity of an opening should maintain the maximum practical radial
clearance, which in no event shall be less than 1 foot.