ASTM F2462-05(2021)

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: F2462 − 05 (Reapproved 2021)
Standard Practice for
Operation and Maintenance of Sewers with Optical Fiber
Systems
This standard is issued under the fixed designation F2462; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 2.3 IEC Standards:
IEC 60825-1 Ed. 1.2, en 2001, Safety of Laser Products—
1.1 This practice applies to the operation and maintenance
Part 1: Equipment Classification, Requirements and Us-
ofsewerswithasubsequentinstallationofopticalfibercablein
er’s Guide
accordance with Practice F2303.
IEC 60050-731 Electrotechnical Vocabulary: Optical Fiber
1.2 This practice applies to gravity flow storm sewers,
Communications
sanitary sewers, and combined sewers. 5
2.4 Federal Standard:
1.3 This practice does not apply to force mains, siphons, or OSHA Regulation 29 CFR Part 1910.146, Permit-Required
other pressurized sewers. Confined Spaces
1.4 This standard does not purport to address all of the
3. Terminology
safety concerns, if any, associated with its use. It is the
3.1 Definitions:
responsibility of the user of this standard to establish appro-
3.1.1 conduit, n—tubing used to house optical fiber cable
priate safety, health, and environmental practices and deter-
that is connected to, but separate from, a sewer pipeline.
mine the applicability of regulatory limitations prior to use.
1.5 This international standard was developed in accor-
3.1.2 O&M, n—operation and maintenance.
dance with internationally recognized principles on standard-
3.1.3 optical fiber cable, n—cable formed of one or more
ization established in the Decision on Principles for the
strands of optical fiber for transmission of data, video, audio,
Development of International Standards, Guides and Recom-
voice, or other information.
mendations issued by the World Trade Organization Technical
3.1.4 optical fiber cable owner, n—entity holding legal
Barriers to Trade (TBT) Committee.
rightsto,andresponsiblefortheoperationandmaintenanceof,
the optical fiber cable. The optical fiber cable owner is also
2. Referenced Documents
responsible for operation and maintenance of any components
2.1 ASTM Standards:
associated with the optical fiber system that are not part of the
F2303 Practice for Selection of Gravity Sewers Suitable for
sewer pipeline as defined in this standard.
Installation of Optical Fiber Cable and Conduits
3.1.5 optical fiber system, n—group of components that
2.2 ANSI Standard:
comprisetheelementsnecessarytoenableopticalfibercableto
ANSI Z117.1-2003 Safety Requirements for Confined
be installed, maintained, and operated inside a sewer pipeline.
Spaces
3.1.6 sewers,n—pipelinesfortheconveyanceofwastewater
1 or stormwater, or both.
This practice is under the jurisdiction ofASTM Committee F36 on Technology
and Underground Utilities and is the direct responsibility of Subcommittee F36.10
3.1.7 vault, n—manhole, hand hole, or other buried enclo-
on Optical Fiber Systems within Existing Infrastructure.
sure used to store slack-loops of cable, fiber cable splices or
Current edition approved May 1, 2021. Published May 2021. Originally
provide access to the sewer for maintenance and inspection, or
approved in 2005. Last previous edition approved in 2015 as F2462 – 05(2015).
DOI: 10.1520/F2462-05R21.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Available from International Electrotechnical Commission (IEC), 3 rue de
Standards volume information, refer to the standard’s Document Summary page on Varembé, 1st floor, P.O. Box 131, CH-1211, Geneva 20, Switzerland, http://
the ASTM website. www.iec.ch.
3 5
Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St., Available from U.S. Government Publishing Office (GPO), 732 N. Capitol St.,
4th Floor, New York, NY 10036, http://www.ansi.org. NW, Washington, DC 20401-0001, http://www.gpo.gov.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
F2462 − 05 (2021)
any combination thereof. Vaults designated only for optical 6.1.4 Optical Fiber Fusion Splicing Operations—Fiber fu-
fiber systems may be located within the street or off-street. sion splicing equipment may provide a potential ignition
Sewervaultsaretypicallylocatedinthestreetand,asapproved source for flammable mixtures. Prior to fusion splicing, verify
by the sewer pipeline operator, may serve the dual purpose of the safety of this operation in the presence of potentially
also housing optical fiber systems. flammable sources (vehicle exhaust, fuel storage, sewers, and
so forth).
4. Summary of Practice
6.2 Mapping and Record-Keeping:
4.1 Sewers with optical fiber systems must be safely oper-
6.2.1 The optical fiber cable owner must maintain accurate
ated and maintained without significant negative impacts on
and up-to-date records of the type and location of all parts of
sewer service and minimal impact on optical fiber system
the optical fiber system and must provide copies to the sewer
users.To satisfy that criteria, the equipment and practices must
pipeline operator.
be well defined and designed with responsible workers trained
6.2.2 Unless otherwise required by the sewer pipeline
to implement and perform the required tasks. Key issues
operator, records may be in the form of maps, drawings, notes,
include:
or any combination thereof consistent with good practice for
4.1.1 General safety considerations;
as-built documentation. As a minimum, the records must
4.1.2 Emergency response procedures, including sewage
indicate the location, extent, size, and orientation of the optical
spill control, emergency sewer pipeline repair, and communi-
fiber system along the sewer pipeline and through vaults.
cation procedures;
6.3 Sewer Emergency Response Procedures:
4.1.3 Routine sewer O&M activities, including service and
6.3.1 Field Activities—During a sewer emergency, the pipe-
main connections; sewer pipeline repairs; periodic sewer
lineoperatorcontrolsallfieldactivitiesnecessarytomitigateor
inspection; sewer pipeline cleaning;
stabilize the emergency event. During such emergencies, all
4.1.4 Routine optical fiber system O&M activities;
optical fiber cable operations and maintenance activities pro-
4.1.5 Cable and conduit marking; and
ceedonlyaspermittedbythesewerpipelineoperator.Theneed
4.1.6 Worker qualification.
to remove an optical fiber cable or conduit. or both, may also
arise where the sewer pipeline structural integrity is affected
5. Significance and Use
and a damaged sewer pipe section must be replaced. The
5.1 This is intended to outline O&M issues that require
optical fiber cable owner must provide the sewer pipeline
discussionandmutualagreementbyboththeopticalfibercable
operator with written procedures for its safe removal.
owner and sewer pipeline operator. The purpose is developing
6.3.2 Notification—As possible, the pipeline operator will
sufficientwrittenproceduresandpracticestoallowopticalfiber
provide timely notification to th
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