Seattle City Light CONSTRUCTION STANDARD Standard Number: Superseding: Effective Date: Page: 0093.02 December 19, 2014 September 1, 2017 1 of 12 Standards Coordinator Ponet Neuansourinh Standards Supervisor John Shipek Unit Director Darnell Cola Utility Pole Attachments 1. Scope This standard provides the requirements for utility pole attachments. Pole attachments may be owned by Seattle City Light (SCL) or renters. 2. Application This standard is directed at SCL engineers, crews, contractors and renters regarding the required spacing and locations of pole attachments. These attachments may be electric or communication. This document is used for pole installations, pole replacements, reconductoring and the addition of communication attachments. 3. Definitions Clearance – The clear distance between two objects measured surface to surface, and usually filled with gas such as air. Communication Space – The space on the pole where communication cables and equipment can be located and accessed by a qualified communication worker. Communication Worker Safety Zone – The space between the Communication Space and Supply Space that provides a communication employee protection from supply lines. Spacing – The distance between two objects measured center to center. Supply Space – The space on the pole where supply cables and equipment can be located and accessed by a qualified electrical worker. See Figure 4 for a graphic representation of the terms defined above.
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Seattle City Light
CONSTRUCTION STANDARD
Standard Number:
Superseding: Effective Date:
Page:
0093.02 December 19, 2014 September 1, 2017 1 of 12
Standards Coordinator Ponet Neuansourinh
Standards Supervisor John Shipek
Unit Director Darnell Cola
Utility Pole Attachments
1. Scope
This standard provides the requirements for utility pole attachments. Pole attachments
may be owned by Seattle City Light (SCL) or renters.
2. Application
This standard is directed at SCL engineers, crews, contractors and renters regarding the
required spacing and locations of pole attachments. These attachments may be electric
or communication.
This document is used for pole installations, pole replacements, reconductoring and the
addition of communication attachments.
3. Definitions
Clearance – The clear distance between two objects measured surface to surface, and
usually filled with gas such as air.
Communication Space – The space on the pole where communication cables and
equipment can be located and accessed by a qualified communication worker.
Communication Worker Safety Zone – The space between the Communication Space
and Supply Space that provides a communication employee protection from supply lines.
Spacing – The distance between two objects measured center to center.
Supply Space – The space on the pole where supply cables and equipment can be
located and accessed by a qualified electrical worker.
See Figure 4 for a graphic representation of the terms defined above.
Seattle City Light CONSTRUCTION STANDARD Utility Pole Attachments
Standard Number:
Superseding: Effective Date:
Page:
0093.02
December 19, 2014 September 1, 2017 2 of 12
4. Communication Spacing Requirements
For communication spacing and locations, refer to Figure 4.
Figure 4. Communication Spacing Details
Seattle City Light CONSTRUCTION STANDARD Utility Pole Attachments
Standard Number:
Superseding: Effective Date:
Page:
0093.02
December 19, 2014 September 1, 2017 3 of 12
5. Construction Notes
5.1 General
All dimensions given are measured between pole attachment points.
A minimum 7-ft spacing is required between the primary circuit and the next SCL
attachment down the pole. This is used for crew workspace and bucket access.
5.2 Communication Bracket
A communication cable attachment bracket shall be installed as described in SCL
0093.06 when requested by the SCL Design Engineer.
5.3 Streetlight
On a residential pole, the streetlight shall be installed at 23 ft using a 2-ft rise bracket arm
to achieve a 25-ft luminaire height.
On an arterial pole, the streetlight shall be installed at 30 ft using a 4-ft rise bracket arm to
achieve a 34-ft luminaire height.
5.4 Secondary and Neutral
The SCL neutral shall be installed at 31 ft on the street side of the pole using an
LR bracket. If secondary cable is needed, it shall be installed at 31 ft on the opposite side
of the neutral using an LR bracket.
5.5 SCL Fiber Optic
The SCL fiber optic duct shall be installed 1 ft above the neutral and on the same side of
the pole as the neutral using a serpentine messenger suspension clamp with a proper
identification tag attached. The fiber optic duct messenger shall be grounded by attaching
to the pole ground.
6. Pole Attachment Locations
Pole attachments shall be attached at locations shown in Figure 6.
Seattle City Light CONSTRUCTION STANDARD Utility Pole Attachments
Standard Number:
Superseding: Effective Date:
Page:
0093.02
December 19, 2014 September 1, 2017 4 of 12
Figure 6. Pole Attachment Locations
Seattle City Light CONSTRUCTION STANDARD Utility Pole Attachments
Standard Number:
Superseding: Effective Date:
Page:
0093.02
December 19, 2014 September 1, 2017 5 of 12
7. Standard Utility Pole Attachment Identification
Identification of attachments is necessary to assist in repair of third party or storm
damage to cables, equipment cabinets, conduit risers and other pole attachments.
For this purpose, a unique three-digit identification number shall be assigned by
SCL Joint Use to those organizations that have a master pole attachment agreement
(Renter) with Seattle City Light (see Section 9).
Identification tags shall be applied by the organization with the SCL agreement to
equipment at every location to which the equipment is attached including all cables,
risers, handholes, equipment boxes, etc. (see Section 8).
Nothing herein shall be construed so as to require Seattle City Light to tag or label any
electrical distribution circuit or facilities. The tagging code for Seattle City Light pertains to
fiber optic and other communications facilities. SCL fiber optic and communications are
tagged with 001.
8. Identification Tag Requirements
Tags shall be applied at every pole to which cable is attached.
Tags shall be applied on all conduit risers.
Tags shall be applied on all pole mounted equipment enclosures.
Tag shall be securely attached and be clearly visible from the ground.
All marking tags, carriers (holders) and attaching devices shall be durable and ultraviolet
(UV) resistant (non UV inhibited plastic tie wraps not acceptable).
The numbers shall be 1-in high black on yellow background.
The number carriers (holders) shall be non-conductive.
A sample of proposed tagging shall be submitted to SCL Pole Asset Management for
approval along with the attachment application. SCL crews should use cable maker
labels, SCL Stock No. 012510, for all fiber attachments.
Pre-approved tags (no submission required) include:
Tech Products “Everlast” with type ELHY letters in a PH103 holder.