Original Version
Rule 84.7
84.7
Climbing Space
Climbing
space shall be maintained on one side or quadrant of all poles or structures
supporting communications conductors excepting at the level of the one pair of
conductors attached to the pole below the lowest crossarm (Rules 84.4–C1c,
84.4–D1 and 87.4–C3) and the top 3 feet of poles carrying communication
conductors only which are attached directly to pole in accordance with the
provisions of Rule 84.4–C1c.
The
climbing space shall be maintained in the same position on the pole for minimum
vertical distance of 4 feet above and below each conductor level through which
it passes, excepting that where a cable is attached to a crossarm or a pole
with the cable less than 9 or 15 inches from the center line of the pole
supporting conductors on line arms (no buck arm construction involved) in
accordance with the provisions of Rules 84.4–D1 or 87.4–C3, the 4 foot vertical
distance may be reduced to not less than 3 feet.
The
position of the climbing space shall not be shifted more than 90 degrees around
the pole within a vertical distance of less than 8 feet. Climbing space shall
be maintained from the ground level.
The
climbing space shall be kept free from obstructions excepting those
obstructions permitted by Rule 84.7–E.
Note: Revised May 22, 1990 by
Resolution No. SU–5.
A.
Where
Line Arms Only are Involved (See
Figure 84–3)
The
climbing space through the levels of conductors supported on line arms only
shall be located so that the center line of the pole is approximately midway on
the side of the climbing space and parallel to the crossarms. The horizontal
dimensions of the climbing spaces, with widths measured perpendicularly to the
conductors, and with depths measured from the center line of the pole and
parallel to the conductors, shall not be less than those specified in Rule
84.7–A1 and 84.7–A2.
EXCEPTION:
At angles in lines
with widths of 18 and 30 inches may be reduced to not less than 16 1/2 and 27
1/2 inches respectively, provided the horizontal separation of pole–pin
conductors measured parallel to the crossarm shall not be less than 18 and 30
inches respectively.
(1) On
Poles Which Support Communication Conductors Only: The climbing space for
communication conductors shall not be less than 18 inches wide and 30 inches
deep.
Note: Revised November 21, 1990 by
Resolution SU–6.
(2) On Poles Jointly
Used with Supply Conductors: The climbing space through the levels of communication conductors
on line arms on poles jointly used with supply conductors, shall be not less
than 30 inches in width and not less than 30 inches in depth, except that
climbing spaces of the dimensions specified in Rule 84.7–A1 may be used where
the only supply conductors supported by the pole are on service drop clearance
attachments as permitted by Rules 54.8–C2 and 54.8–C3.
B. Where
Buck Arms Are Involved
The
horizontal dimensions of the climbing space shall be fixed according to the
following crossarm combinations of line arms and related buck arms. For this
purpose a metal back brace shall be considered as one of the arms of double arm
construction and where used the requirements for double arm construction shall
be met.
(1) Double Line Arm and Double Buck Arm: Where the combination is double line
arm and double buck arm the climbing space shall be not less than 26 1/2 inches
square measured horizontally from the center line of pole (see Appendix G,
Figure 37).
(2) Double Buck Arm and Single Line Arm,
or Vice Versa: Where
the combination is double buck arm and single line arm, or vice versa, and the
climbing space is left open on the opposite side of pole from the single arm,
the climbing space (measured horizontally from center line of pole) shall be
not less than 20 inches perpendicular to the single arm, and not less than 26
1/2 inches perpendicular to the double arms (see Appendix G, Figure 36).
(3) Single Line Arm and Single Buck Arm: Where the combination is single line
arm and single buck arm and the climbing space is left open on the sides of
pole opposite the crossarms, the climbing space shall be not less than 20
inches square measured horizontally from center line of pole (see Appendix G,
Figure 35).
(4) Alternative: Where a combination of a single line arm and a single
buck arm or a double line arm and single buck arm (or vice versa) is involved
and it is impracticable to locate the climbing space on the side of the pole
opposite the single arm or arms, it may be located in another quadrant provided
that any arm within such climbing space is treated as one of the arms of a
double arm installation and that where a change of quadrant is involved the
provisions of Rule 84.7 are observed.
C. Through Conductors Not on Crossarms
Where
communication conductors are not supported on crossarms, an unobstructed
climbing space not less than 30 inches square (measured from center line of
pole) shall be maintained through all conductor levels of such conductors
except those levels of similarly supported conductors within 3 feet of the
topmost conductor on the pole (see Appendix G, Figure 38).
D. Through Service Drops Not on Crossarms
Where
hooks, knobs or brackets are used for the support of service drops and other
conductors are supported at a higher level on the pole, an unobstructed
climbing space 30 inches square shall be maintained through such attachments,
and for not less than 4 feet above and below such attachments, using any one of
the service drops as one side of the climbing space and having one other side
perpendicular to it and tangent to the surface of the pole (see Appendix G,
Figure 39).
For
clearance of service drop attachments above or below supply conductors see Rule
84.8–D1.
E. Allowable Climbing Space Obstructions
Vertical
conductors, when in a suitable protective covering attached directly to the
surface of the pole, and guys, will not be held to obstruct the climbing space
provided not more than two guys (provided they are separated at the pole by a
vertical distance of not more than 18 inches) and one other of the above named
obstructions are installed in any 4-foot vertical section of climbing space.
Crossarms
and their supporting members are allowed in climbing spaces provided that,
where buck arms are involved, any arms within climbing spaces are treated as
double arms.
A
guard arm, a longitudinal run of messenger, cable or insulated wire will not be
held to obstruct the climbing space where they are placed in the climbing space
because the presence of a building wall or similar obstacle will not permit the
cable to be placed on the side of pole opposite the climbing space. Pole steps
shall be suitably placed for the purpose of facilitating climbing past the
level of terminal box, cable, drop wires and guard arm.
Pole
restoration techniques are allowed in climbing space provided pole steps are
placed in the restoration area as part of the process. Pole stepping shall be
in accordance with Rules 51.7 and 81.6. Hardware for the use of detachable pole
steps shall be installed as part of the restoration process from ground line to
7 feet 6 inches.
Bands
limited to 6 inches in total width are allowed in any 24-inch section of
climbing space. These limitations are excluded for pole stubbing and pole
splicing bands when pole step provisions are installed.
Unnecessary
impairment of the climbing space is not permitted by the application of this
Rule 84.7-E.
Note:
Revised March 9, 1988 by Resolution E–3076 and January 13, 2005 by Decision No.
0501030.
F. Colinear,
Conflicting or Crossing Lines (See Rule 84.4–D3)
Strikeout and Underline Version
Rule 84.7
84.7 Climbing
Space and Working Space
A. Climbing Space
Climbing
space shall be maintained on one side or quadrant of all poles or structures
supporting communications conductors excepting at the level of the one pair of
conductors attached to the pole below the lowest crossarm (Rules 84.4–C1c,
84.4–D1 and 87.4–C3) and the top 3 feet of poles carrying communication
conductors only which are attached directly to pole in accordance with the
provisions of Rule 84.4–C1c.
The
climbing space shall be maintained in the same position on the pole for minimum
vertical distance of 4 feet above and below each conductor level through which
it passes, excepting that where a cable is attached to a crossarm or a pole
with the cable less than 9 or 15 inches from the center line of the pole
supporting conductors on line arms (no buck arm construction involved) in
accordance with the provisions of Rules 84.4–D1 or 87.4–C3, the 4 foot vertical
distance may be reduced to not less than 3 feet.
The
position of the climbing space shall not be shifted more than 90 degrees around
the pole within a vertical distance of less than 8 feet. Climbing space shall
be maintained from the ground level.
The
climbing space shall be kept free from obstructions excepting those
obstructions permitted by Rule 84.7–E.
Note: Revised May 22, 1990 by
Resolution No. SU–5.
A.1. Where Line Arms Only are Involved (See Figure 84–3)
The
climbing space through the levels of conductors supported on line arms only
shall be located so that the center line of the pole is approximately midway on
the side of the climbing space and parallel to the crossarms. The horizontal
dimensions of the climbing spaces, with widths measured perpendicularly to the
conductors, and with depths measured from the center line of the pole and
parallel to the conductors, shall not be less than those specified in Rule
84.7–A1 and 84.7–A2.
EXCEPTION:
At angles in lines
with widths of 18 and 30 inches may be reduced to not less than 16 1/2 and 27
1/2 inches respectively, provided the horizontal separation of pole–pin
conductors measured parallel to the crossarm shall not be less than 18 and 30
inches respectively.
(1)(a) On Poles Which Support Communication
Conductors Only: The
climbing space for communication conductors shall not be less than 18 inches
wide and 30 inches deep.
Note: Revised November 21, 1990 by
Resolution SU–6.
(2)(b) On Poles Jointly Used with Supply Conductors: The climbing space
through the levels of communication conductors on line arms on poles jointly
used with supply conductors, shall be not less than 30 inches in width and not
less than 30 inches in depth, except that climbing spaces of the dimensions
specified in Rule 84.7–A1 may be used where the only supply conductors
supported by the pole are on service drop clearance attachments as permitted by
Rules 54.8–C2 and 54.8–C3.
B.2. Where Buck
Arms Are Involved
The
horizontal dimensions of the climbing space shall be fixed according to the
following crossarm combinations of line arms and related buck arms. For this
purpose a metal back brace shall be considered as one of the arms of double arm
construction and where used the requirements for double arm construction shall
be met.
(1)(a) Double
Line Arm and Double Buck Arm: Where
the combination is double line arm and double buck arm the climbing space shall
be not less than 26 1/2 inches square measured horizontally from the center
line of pole (see Appendix G, Figure 37).
(2)(b) Double
Buck Arm and Single Line Arm, or Vice Versa: Where the combination is double buck arm and single line
arm, or vice versa, and the climbing space is left open on the opposite side of
pole from the single arm, the climbing space (measured horizontally from center
line of pole) shall be not less than 20 inches perpendicular to the single arm,
and not less than 26 1/2 inches perpendicular to the double arms (see Appendix
G, Figure 36).
(3)(c) Single
Line Arm and Single Buck Arm: Where
the combination is single line arm and single buck arm and the climbing space
is left open on the sides of pole opposite the crossarms, the climbing space
shall be not less than 20 inches square measured horizontally from center line
of pole (see Appendix G, Figure 35).
(4)(d) Alternative:
Where a combination
of a single line arm and a single buck arm or a double line arm and single buck
arm (or vice versa) is involved and it is impracticable to locate the climbing
space on the side of the pole opposite the single arm or arms, it may be
located in another quadrant provided that any arm within such climbing space is
treated as one of the arms of a double arm installation and that where a change
of quadrant is involved the provisions of Rule 84.7 are observed.
C.3. Through
Conductors Not on Crossarms
Where
communication conductors are not supported on crossarms, an unobstructed
climbing space not less than 30 inches square (measured from center line of
pole) shall be maintained through all conductor levels of such conductors
except those levels of similarly supported conductors within 3 feet of the
topmost conductor on the pole (see Appendix G, Figure 38).
D.4. Through Service Drops Not on
Crossarms
Where
hooks, knobs or brackets are used for the support of service drops and other
conductors are supported at a higher level on the pole, an unobstructed
climbing space 30 inches square shall be maintained through such attachments,
and for not less than 4 feet above and below such attachments, using any one of
the service drops as one side of the climbing space and having one other side
perpendicular to it and tangent to the surface of the pole (see Appendix G,
Figure 39).
For
clearance of service drop attachments above or below supply conductors see Rule
84.8–D1.
E.5. Allowable Climbing Space
Obstructions
a. Vertical
conductors, when in a suitable protective covering attached directly to the
surface of the pole, and guys, will not be held to obstruct the climbing space
provided not more than two guys (provided they are separated at the pole by a
vertical distance of not more than 18 inches) and one other of the above named
obstructions are installed in any 4-foot vertical section of climbing space.
b. Crossarms and
their supporting members are allowed in climbing spaces provided that, where
buck arms are involved, any arms within climbing spaces are treated as double
arms.
c. A guard arm, a
longitudinal run of messenger, cable or insulated wire will not be held to
obstruct the climbing space where they are placed in the climbing space because
the presence of a building wall or similar obstacle will not permit the cable
to be placed on the side of pole opposite the climbing space. Pole steps shall
be suitably placed for the purpose of facilitating climbing past the level of
terminal box, cable, drop wires and guard arm.
d. Pole restoration techniques
materials are allowed in climbing space provided pole steps are placed
in the restoration area as part of the process. Pole stepping shall be in
accordance with Rules 51.7 and 81.6. Hardware for the use of
detachable pole steps shall be installed as part of the restoration process
from ground line to 7 feet 6 inches.
e. Bands limited to
6 inches in total width are allowed in any 24-inch section of climbing space.
These limitations are excluded for pole stubbing and pole splicing bands when
pole step provisions are installed.
f. Unnecessary
impairment of the climbing space is not permitted by the application of this
Rule 84.7-E.
Note:
Revised March 9, 1988 by Resolution E–3076 and January 13, 2005 by Decision No.
0501030.
F.6. Colinear, Conflicting or Crossing Lines
(See Rule 84.4–D3)
B.
Working Space
Working
spaces, unobstructed by facilities except as provided in Rule 84.7-B(3), of the
dimensions specified in Rule 84.7-B(1) and/or 84.7-B(2), shall be provided on
all poles in such positions that the workings space shall be accessible from
the climbing space.
(1)
Dimensions for surface mounted conductor(s), cable(s), and messenger(s):
(a) The vertical dimension extends 24
inches above the uppermost attachment and 48 inches below the lowermost
attachment. (See Figure 84-4.)
(b) The width extends 36 inches from the
centerline of the pole in both directions measured horizontally along the plane
of the attachments. (See Figure 84-4.)
(c) The depth extends not less than 36
inches as measured perpendicularly to this space boundary from the centerline
of the pole. (See Figure-84-4.)
(2)
Dimensions for Arm mounted conductor(s), cable(s), and messenger(s):
(a) The vertical dimensions are the same
as Rule 84.7.B.1.a.
(b) The width dimension is the same as
Rule 84.7.B.1.b.
(c) Where arm(s) support cable(s) the
working space include the dimensions described above and extends from the
center line of the pole to 36” or the outermost cable, whichever is greater.
(3)
Allowable Working Space Obstructions:
(a) Arms supporting cable, guard arms,
longitudinal runs of messenger cable, and equipment mounted to a cable or a
cable attached directly to the pole.
(i) Cable(s) supported on Arm(s) must be
12 inches above any cable attached directly to the pole below the arm(s). No
cable or equipment may be attached directly to a pole above any such arm at
less than 4 feet.
(b) Guys, risers, vertical cables and conductors attached
directly to the surface of the pole or on a riser bracket, control rods.
(c) Streetlight brackets or fixtures
installed in conformance with Rule 92.1.f.5.
(d) Equipment supporting class C
circuits affixed to the surface of the pole.
(e) Antenna(s) installed in accordance
with Rule 94 above cable(s) of the same ownership.
(f) Unnecessary
impairment of the working space is not permitted by the application of this
Rule 84.7-G(2).
(g) Where installed, pole steps shall be
suitably placed to facilitate working around obstructions.
Final Version
Rule 84.7
84.7 Climbing
Space and Working Space
A. Climbing Space
Climbing
space shall be maintained on one side or quadrant of all poles or structures
supporting communications conductors excepting at the level of the one pair of
conductors attached to the pole below the lowest crossarm (Rules 84.4–C1c,
84.4–D1 and 87.4–C3) and the top 3 feet of poles carrying communication
conductors only which are attached directly to pole in accordance with the
provisions of Rule 84.4–C1c.
The
climbing space shall be maintained in the same position on the pole for minimum
vertical distance of 4 feet above and below each conductor level through which
it passes, excepting that where a cable is attached to a crossarm or a pole
with the cable less than 9 or 15 inches from the center line of the pole
supporting conductors on line arms (no buck arm construction involved) in
accordance with the provisions of Rules 84.4–D1 or 87.4–C3, the 4 foot vertical
distance may be reduced to not less than 3 feet.
The
position of the climbing space shall not be shifted more than 90 degrees around
the pole within a vertical distance of less than 8 feet. Climbing space shall
be maintained from the ground level.
The
climbing space shall be kept free from obstructions excepting those
obstructions permitted by Rule 84.7–E.
Note: Revised May 22, 1990 by
Resolution No. SU–5.
1. Where Line Arms Only are Involved (See Figure 84–3)
The
climbing space through the levels of conductors supported on line arms only
shall be located so that the center line of the pole is approximately midway on
the side of the climbing space and parallel to the crossarms. The horizontal
dimensions of the climbing spaces, with widths measured perpendicularly to the
conductors, and with depths measured from the center line of the pole and
parallel to the conductors, shall not be less than those specified in Rule
84.7–A1 and 84.7–A2.
EXCEPTION:
At angles in lines
with widths of 18 and 30 inches may be reduced to not less than 16 1/2 and 27
1/2 inches respectively, provided the horizontal separation of pole–pin
conductors measured parallel to the crossarm shall not be less than 18 and 30
inches respectively.
(a) On Poles Which Support Communication
Conductors Only: The
climbing space for communication conductors shall not be less than 18 inches
wide and 30 inches deep.
Note: Revised November 21, 1990 by
Resolution SU–6.
(b) On Poles Jointly Used with Supply
Conductors: The climbing space through the levels of communication conductors
on line arms on poles jointly used with supply conductors, shall be not less
than 30 inches in width and not less than 30 inches in depth, except that
climbing spaces of the dimensions specified in Rule 84.7–A1 may be used where
the only supply conductors supported by the pole are on service drop clearance
attachments as permitted by Rules 54.8–C2 and 54.8–C3.
2. Where Buck
Arms Are Involved
The
horizontal dimensions of the climbing space shall be fixed according to the
following crossarm combinations of line arms and related buck arms. For this
purpose a metal back brace shall be considered as one of the arms of double arm
construction and where used the requirements for double arm construction shall
be met.
(a) Double
Line Arm and Double Buck Arm: Where
the combination is double line arm and double buck arm the climbing space shall
be not less than 26 1/2 inches square measured horizontally from the center
line of pole (see Appendix G, Figure 37).
(b) Double
Buck Arm and Single Line Arm, or Vice Versa: Where the combination is double buck arm and single line
arm, or vice versa, and the climbing space is left open on the opposite side of
pole from the single arm, the climbing space (measured horizontally from center
line of pole) shall be not less than 20 inches perpendicular to the single arm,
and not less than 26 1/2 inches perpendicular to the double arms (see Appendix
G, Figure 36).
(c) Single
Line Arm and Single Buck Arm: Where
the combination is single line arm and single buck arm and the climbing space
is left open on the sides of pole opposite the crossarms, the climbing space
shall be not less than 20 inches square measured horizontally from center line
of pole (see Appendix G, Figure 35).
(d) Alternative:
Where a combination
of a single line arm and a single buck arm or a double line arm and single buck
arm (or vice versa) is involved and it is impracticable to locate the climbing
space on the side of the pole opposite the single arm or arms, it may be
located in another quadrant provided that any arm within such climbing space is
treated as one of the arms of a double arm installation and that where a change
of quadrant is involved the provisions of Rule 84.7 are observed.
3. Through
Conductors Not on Crossarms
Where
communication conductors are not supported on crossarms, an unobstructed
climbing space not less than 30 inches square (measured from center line of
pole) shall be maintained through all conductor levels of such conductors
except those levels of similarly supported conductors within 3 feet of the
topmost conductor on the pole (see Appendix G, Figure 38).
4. Through
Service Drops Not on Crossarms
Where
hooks, knobs or brackets are used for the support of service drops and other
conductors are supported at a higher level on the pole, an unobstructed
climbing space 30 inches square shall be maintained through such attachments,
and for not less than 4 feet above and below such attachments, using any one of
the service drops as one side of the climbing space and having one other side
perpendicular to it and tangent to the surface of the pole (see Appendix G,
Figure 39).
For
clearance of service drop attachments above or below supply conductors see Rule
84.8–D1.
5. Allowable
Climbing Space Obstructions
a. Vertical
conductors, when in a suitable protective covering attached directly to the
surface of the pole, and guys, will not be held to obstruct the climbing space
provided not more than two guys (provided they are separated at the pole by a
vertical distance of not more than 18 inches) and one other of the above named
obstructions are installed in any 4-foot vertical section of climbing space.
b. Crossarms
and their supporting members are allowed in climbing spaces provided that,
where buck arms are involved, any arms within climbing spaces are treated as
double arms.
c. A
guard arm, a longitudinal run of messenger, cable or insulated wire will not be
held to obstruct the climbing space where they are placed in the climbing space
because the presence of a building wall or similar obstacle will not permit the
cable to be placed on the side of pole opposite the climbing space. Pole steps
shall be suitably placed for the purpose of facilitating climbing past the
level of terminal box, cable, drop wires and guard arm.
d. Pole
restoration materials are allowed in climbing space provided pole steps are
placed in the restoration area as part of the process. Pole stepping shall be
in accordance with Rule 81.6.
e. Bands
limited to 6 inches in total width are allowed in any 24-inch section of
climbing space. These limitations are excluded for pole stubbing and pole
splicing bands when pole step provisions are installed.
f. Unnecessary
impairment of the climbing space is not permitted by the application of this
Rule 84.7-E.
Note:
Revised March 9, 1988 by Resolution E–3076 and January 13, 2005 by Decision No.
0501030.
6. Colinear, Conflicting
or Crossing Lines (See Rule 84.4–D3)
B.
Working Space
Working
spaces, unobstructed by facilities except as provided in Rule 84.7-B(3), of the
dimensions specified in Rule 84.7-B(1) and/or 84.7-B(2), shall be provided on
all poles in such positions that the workings space shall be accessible from
the climbing space.
(1)
Dimensions for surface mounted conductor(s), cable(s), and messenger(s):
(a) The vertical dimension extends 24
inches above the uppermost attachment and 48 inches below the lowermost
attachment. (See Figure 84-4.)
(b) The width extends 36 inches from the
centerline of the pole in both directions measured horizontally along the plane
of the attachments. (See Figure 84-4.)
(c) The depth extends not less than 36
inches as measured perpendicularly to this space boundary from the centerline
of the pole. (See Figure-84-4.)
(2)
Dimensions for Arm mounted conductor(s), cable(s), and messenger(s):
(a) The vertical dimensions are the same
as Rule 84.7.B.1.a.
(b) The width dimension is the same as
Rule 84.7.B.1.b.
(c) Where arm(s) support cable(s) the
working space include the dimensions described above and extends from the
center line of the pole to 36” or the outermost cable, whichever is greater.
(3)
Allowable Working Space Obstructions:
(a) Arms supporting cable, guard arms,
longitudinal runs of messenger cable, and equipment mounted to a cable or a
cable attached directly to the pole.
(i) Cable(s) supported on Arm(s) must be
12 inches above any cable attached directly to the pole below the arm(s). No
cable or equipment may be attached directly to a pole above any such arm at
less than 4 feet.
(b) Guys,
risers, vertical cables and conductors attached directly to the surface of the
pole or on a riser bracket, control rods.
(c) Streetlight brackets or fixtures
installed in conformance with Rule 92.1.f.5.
(d) Equipment supporting class C
circuits affixed to the surface of the pole.
(e) Antenna(s) installed in accordance
with Rule 94 above cable(s) of the same ownership.
(f) Unnecessary
impairment of the working space is not permitted by the application of this
Rule 84.7-G(2).
(g) Where installed, pole steps shall be
suitably placed to facilitate working around obstructions.