ASTM F2303-03
(Practice)Standard Practice for Selection of Gravity Sewers Suitable for Installation of Optical Fiber Cable and Conduits
Standard Practice for Selection of Gravity Sewers Suitable for Installation of Optical Fiber Cable and Conduits
SIGNIFICANCE AND USE
This practice is intended to assist engineers and sewer owner/operators in determining the suitability of sewers for a secondary use as hosts for optical fiber cables and conduits. It must be kept in mind that the primary use of the sewers is to carry wastewater and/or storm water. Any secondary use of the system shall not significantly impair the primary use. It is up to the engineer to decide upon any exceptions that may be involved in the selection process.
Before the selection procedure begins, the installer must have explicit authorization from the owner/operator allowing an evaluation to be conducted for the installation of optical fiber cables or conduits within their sewer system.
Engineers and owners should also be cognizant of how the installation of optical fiber cable or conduits will impact the future operational, maintenance and rehabilitation needs of the sewers.
SCOPE
1.1 This practice specifically addresses the criteria for determining the suitability of gravity sewers for secondary uses such as the installation of optical fiber systems.
1.1.1 This practice applies to the process of selecting gravity sewers that are appropriate for accepting an optical fiber system as opposed to standards for the installation, operation and maintenance of such system within sewers.
1.2 This practice applies to both man accessible and man inaccessible sewer systems.
1.3 The values stated in inch-pound units are to be regarded as the standard. The values provided in parentheses are for information purposes only.
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
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Designation:F2303–03
Standard Practice for
Selection of Gravity Sewers Suitable for Installation of
Optical Fiber Cable and Conduits
This standard is issued under the fixed designation F 2303; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope 3. Terminology
1.1 This practice specifically addresses the criteria for 3.1 Definitions are in accordance with Terminology F 412
determiningthesuitabilityofgravitysewersforsecondaryuses and abbreviations are in accordance withTerminology D 1600,
such as the installation of optical fiber systems. unless otherwise specified.
1.1.1 Thispracticeappliestotheprocessofselectinggravity 3.2 Definitions of Terms Specific to This Standard:
sewers that are appropriate for accepting an optical fiber 3.2.1 combined sewers—sewers that carry both wastewater
system as opposed to standards for the installation, operation and storm or surface water.
and maintenance of such system within sewers. 3.2.2 engineer—the licensed professional designated by the
1.2 This practice applies to both man accessible and man owner/operator of the sewer system to represent the owner’s/
inaccessible sewer systems. operator’s interests during the selection process.
1.3 The values stated in inch-pound units are to be regarded 3.2.3 installer—the person(s) or body installing the optical
as the standard. The values provided in parentheses are for fiber system within the sewer.
information purposes only. 3.2.4 manholes—verticalshaftstoconnectintersectingsew-
1.4 This standard does not purport to address all of the ers to allow transitions in size, alignment and grade and to
safety concerns, if any, associated with its use. It is the allow entry to the sewers for cleaning, inspection, and main-
responsibility of the user of this standard to establish appro- tenance.
priate safety and health practices and determine the applica- 3.2.5 optical fiber cable—cable formed of many strands of
bility of regulatory limitations prior to use. optical fiber for transmission of data, video, audio, voice, and
other information.
2. Referenced Documents
3.2.6 optical fiber conduit—fully-supported tubes suitably
2.1 ASTM Standards: affixed to or suitably incorporated into the wall structure of the
D 543 Test Method for Resistance of Plastics to Chemical
sewer.
Reagents 3.2.7 optical fiber system—the complete set of installed
D 1600 Terminology for Abbreviated Terms Relating to
optical fiber components including cable, conduit and attach-
Plastics ment components.
F 412 Terminology Relating to Plastic Piping System
3.2.8 owner/operator—the person(s) or body charged with
ASTM Safety Document—Reference to be Announced maintenance and operation of the sewer system.
2.2 Other Documents:
3.2.9 sanitary sewers—sewers that carry wastewater from
“Gravity Sanitary Sewer Design and Construction,” Manual users to the treatment plant.
of Practice No. FD-5, ASCE Recommended Specifica-
3.2.10 service lateral—portion of the sewer system that
tions for Sewer Collection System Rehabilitation connects a user to the sewer.
(NASCCO Standard)
3.2.11 sewer—buried piping designed to carry wastewater
Sewer Rehabilitation Manual (SRM) produced by theWater or storm run-off.
Research Center (WRc, Swindon, England)
3.2.12 storm sewers—sewers that carry storm or surface
water away from roadways or structures to waterways.
4. Summary of Practice
This practice is under the jurisdiction ofASTM Committee F36 on Technology
and Underground Utilities and is the direct responsibility of Subcommittee F36.10
4.1 Optical fiber cable and conduit systems in existing
on Optical Fiber Systems within Existing Infrastructure.
sewers shall be designed and installed so that they have a
Current edition approved Sept. 10, 2003. Published October 2003.
minimal effect on the sewer’s hydraulic performance and no
Annual Book of ASTM Standards, Vol 08.01.
Annual Book of ASTM Standards, Vol 08.04. effect on their structural integrity. Their design and installation
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
F2303–03
shall also allow for the safe and efficient operation and temporarily stopped or fully bypassed prior to inspection to
maintenance of the sewer, and provide for the safe and efficient allowforacompleteexaminationandevaluationoftheinternal
operation of the optical fiber system. The ultimate success of
pipe circumference.
theinstallationandoperationofopticalfiberandsewersystems
6.2 Inspection:
depends upon the proper evaluation and selection of appropri-
6.2.1 Televising—The inspection of the sewer system and
ate sewers. The steps in the process include the following
appurtenances shall be accomplished by means of a closed
items:
circuit television system (CCTV) or other equivalent technol-
4.1.1 Cleaning,
ogy. Records of the inspection in analog or digital format will
4.1.2 Inspection and evaluation of the sewers which are
be maintained and forwarded to the system owner/operator in
candidates for optical fiber cable or conduit installation,
the selection report.
4.1.3 Selection of sewer route, and
6.2.1.1 Visual Quality—Thevisualqualitywillbesuchasto
4.1.4 Documentation of cable routing.
allow determination of the presence of cracks, separated joints,
grease, deposits, sags, high water marks, infiltration, corrosion,
5. Significance and Use
and root intrusion.
5.1 This practice is intended to assist engineers and sewer
6.2.1.2 Distance Recording—The distance from the starting
owner/operators in determining the suitability of sewers for a
point of each inspection run must be designated by a specific
secondary use as hosts for optical fiber cables and conduits. It
reference (for example, middle of manhole) acceptable to the
must be kept in mind that the primary use of the sewers is to
owner/operator.
carry wastewater and/or storm water.Any secondary use of the
6.2.1.3 Acceptability of Digital Optical Scanning (New
system shall not significantly impair the primary use. It is up to
the engineer to decide upon any exceptions that may be Technology)—If acceptable to the owner, digital optical scan-
involved in the selection process. ning may be substituted for CCTV.The requirement for degree
5.2 Before the selection procedure begins, the installer must of resolution and recording of data remains the same as for
have explicit authorization from the owner/operator allowing CCTV methods.
an evaluation to be conducted for the installation of optical
6.2.1.4 Replicable System Assessment Method—The
fiber cables or conduits within their sewer system.
method used to document the presence and severity of sewer
5.3 Engineers and owners should also be cognizant of how
faults shall be replicable. Unless otherwise specified by the
theinstallationofopticalfibercableorconduitswillimpactthe
owner/operator, a standard fault coding system such as the
future operational, maintenance and rehabilitation needs of the
WRc Standard Fault Code (or equivalent) may be used to
sewers.
satisfy this criterion. The system selected should be capable of
documenting, at a minimum, the presence and severity of the
6. Sewer Selection Procedure
following types of faults: longitudinal cracks, radial cracks,
6.1 Cleaning and Flow Bypass: breaks, gapped joints, damaged seals, infiltration/inflow, sags,
6.1.1 Requirement to Clean—Prior to selection of a candi- levels of corrosion, out-of-round pipe, and uneven slopes.
date sewer, the sewer must be thoroughly cleaned to allow for
6.2.1.5 Requirement for Trained Professional—The inspec-
proper inspection and evaluation according to the selection
tion operator shall be a trained individual with suitable
criteria outlined below. The National Association of Sewer
professional qualifications (for example, NASCCO certifica-
Services Companies (NASSCO) provides a helpful standard.
tion) to provide a qualified inspection opinion as to fault
This cleaning process shall be performed with the equipment
coding.
recommended by the optical fiber installer as being compatible
6.3 Sewer Selection Criteria:
(see 6.1.3). The cleaning process then serves as a test of the
6.3.1 The data from the inspection and evaluation should be
effectiveness of the cleaning equipment as well as allowing the
used to identify the sewer sections and manholes suitable for
inspection of the integrity of the sewer.
installation of optical fiber cables and conduits. The candidate
6.1.2 Exceptions to Cleaning Requirement—In cases where
sewer must meet minimum criteria based upon hydraulic,
the pipe has recently been cleaned or has been recently
structural, operations and maintenance, and flow chemistry
installed, the cleaning requirement may be waived by mutual
analysis. Those sections not meeting the selection criteria shall
consent of the system owner and optical fiber system installer.
be rejected, suitably repaired or rehabilitated, or otherwise
6.1.3 Requirement for Compatibility—The installer shall
modifiedandre-inspected.Otherwise,analternativerouteshall
recommend compatible sewer-cleaning methods to the owner/
be selected in order for the project to receive recommendation.
operator. Such methods shall be compatible with both the
6.3.2 Requirement for Professional Opinion—The individu-
existing pipeline (ma
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