Original Version
Rule 92.1-A
92.1-A. Between Low Voltage Rack Conductors
and Other Conductors
On jointly used poles, the following minimum vertical clearances shall apply between 0-750 volt supply conductors in rack construction and other conductors (see App. G, Fig 9):
|
Racks above |
|
|
Conductors or cables 15’’ or more from center line of pole |
4 feet |
|
Unguarded cables, messengers or racks attached to poles |
6 feet |
|
Guarded cables, messengers, or racks attached to poles |
4 feet |
|
Unguarded racks below |
|
|
All circuits |
6 feet |
|
Guarded rack below |
|
|
Circuits of 0-20,000 volts or communication circuits |
4 feet |
Strikeout and Underline Version
Rule 92.1-A
92.1-A. Between Low Voltage Rack Conductors
and Other Conductors
On jointly used poles, the following minimum vertical clearances
shall apply between 0-750 volt supply conductors in rack construction and
other conductors (see App. G, Fig 9):
|
Racks above |
|
|
Conductors or cables 15’’ or more from center line of pole |
4 feet |
|
Unguarded cables, messengers or racks attached to poles |
6 feet |
|
Guarded cables, messengers, or racks attached to poles |
4 feet |
|
Unguarded racks below |
|
|
All circuits |
6 feet |
|
Guarded rack below |
|
|
Circuits of 0- |
4 feet |
Final Version
Rule 92.1-A
92.1-A. Between Low Voltage Rack Conductors
and Other Conductors
On jointly used poles, the following minimum vertical clearances shall apply between 0-750 volt supply conductors in rack construction and other conductors (see App. G, Fig 9 ):
|
Racks above |
|
|
Conductors or cables 15’’ or more from center line of pole |
4 feet |
|
Unguarded cables, messengers or racks attached to poles |
6 feet |
|
Guarded cables, messengers, or racks attached to poles |
4 feet |
|
Unguarded racks below |
|
|
All circuits |
6 feet |
|
Guarded rack below |
|
|
Circuits of 0-21,000 volts or communication circuits |
4 feet |