ASTM F1911-05(2015)

Standard Practice for Installation of Barbed Tape

SIGNIFICANCE AND USE
4.1 This practice is intended to provide standard requirements utilizing specialized equipment and hand tools.  
4.2 Ensure that the barbed tape is fabricated from acceptable material and well constructed. Field verification of the barbed tape's acceptability shall be in accordance with the project's specifications and this specification.
SCOPE
1.1 This practice covers the installation procedure for barbed tape.  
1.2 The primary purpose of this practice is to guide those responsible for or concerned with the installation of barbed tape on chain link fences, masonry walls, roofs or used as ground barriers. This standard is not intended to cover aspects of perimeter security for establishing levels of product performance or give analysis relating to various design comparisons.  
1.3 This standard involves the use of material, that may cause injury, including exposure to hazardous materials, and operation of specialized equipment.  
1.4 The values stated in inch-pound units are to be regarded as standard. No other units of measurement are included in this standard.  
1.5 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.

General Information

• Status: Historical
• Publication Date: 28-Feb-2015
• ICS: 77.140.65 - Steel wire, wire ropes and link chains
• ICS: 95.020 - Military in general
• Technical Committee: F14 - Fences
• Drafting Committee: F14.40 - Chain Link Fence and Wire Accessories

Relations

• Replaces: ASTM F1911-05(2010) - Standard Practice for Installation of Barbed Tape
• Effective Date: 01-Mar-2015
• Referred By: ASTM F2814-09(2015) - Standard Guide for Design and Construction of Ornamental Steel Picket Fence Systems for Security Purposes
• Effective Date: 01-Mar-2015
• Referred By: ASTM F1553-11(2022) - Standard Guide for Specifying Chain Link Fence
• Effective Date: 01-Mar-2015
• Referred By: ASTM F3204-16 - Standard Guide for Design and Construction of Welded Wire Fence Systems for Security Purposes
• Effective Date: 01-Mar-2015
• Referred By: ASTM F2611-15 - Standard Guide for Design and Construction of Chain Link Security Fencing
• Effective Date: 01-Mar-2015

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: F1911 − 05 (Reapproved 2015)
Standard Practice for
Installation of Barbed Tape
This standard is issued under the fixed designation F1911; 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 4. Significance and Use
1.1 This practice covers the installation procedure for 4.1 This practice is intended to provide standard require-
barbed tape. ments utilizing specialized equipment and hand tools.
1.2 The primary purpose of this practice is to guide those 4.2 Ensurethatthebarbedtapeisfabricatedfromacceptable
responsible for or concerned with the installation of barbed material and well constructed. Field verification of the barbed
tape on chain link fences, masonry walls, roofs or used as tape’s acceptability shall be in accordance with the project’s
ground barriers. This standard is not intended to cover aspects specifications and this specification.
of perimeter security for establishing levels of product perfor-
mance or give analysis relating to various design comparisons. 5. Site Preparation
1.3 This standard involves the use of material, that may
5.1 Theownershallspecifythelocationinwhichthebarbed
cause injury, including exposure to hazardous materials, and tape shall be installed by furnishing drawings or personal
operation of specialized equipment.
instruction.
1.4 The values stated in inch-pound units are to be regarded 5.2 Barbed tape obstacles shall be in accordance with
as standard. No other units of measurement are included in this Specification F1910 barbed tape specifications.
standard.
NOTE 1—Refer to Terminology F1379 for barb configuration and cross
1.5 This standard does not purport to address all of the sections.
safety concerns, if any associated with its use. It is the
responsibility of the user of this standard to establish appro- 6. Installation
priate safety and health practices and determine the applica-
6.1 When the specifications are unclear, refer to these
bility of regulatory limitations prior to use.
instructions or contact the owner for information covering
placement, coil attachment, splicing, etc.
2. Referenced Documents
6.2 Non-Reinforced (Concertina):
2.1 ASTM Standards:
6.2.1 Description—Barbed obstacle capable of being per-
F1379 Terminology Relating to Barbed Tape
manently or temporarily installed. Barbed tape used for some
F1910 Specification for Long Barbed Tape Obstacles
temporary installations shall have the ability of being recov-
F1916 Specifications for Selecting Chain Link Barrier Sys-
ered and used repeatedly.
tems With Coated Chain Link Fence Fabric and Round
6.2.2 Top of the Fence Installation—Barb Arms are recom-
Posts for Detention Applications (Withdrawn 2008)
mended for top of the fence installations. Single 45° barb arms
with a single strand of barbed wire or tension wire located in
3. Terminology
the outer position of the arm will support coils deployed at the
3.1 Refers to Terminology F1379.
top of the fence. Barb arms are positioned so that arms are out
of reach from the approach side. “V” arms are not recom-
mended for security applications where climbing is a threat or
This practice is under the jurisdiction ofASTM Committee F14 on Fences and
where only one row of barbed tape is specified. Two rows of
is the direct responsibility of Subcommittee F14.40 on Chain Link Fence and Wire
Accessories.
barbed tape are recommended where “V” arms are specified.
Current edition approved March 1, 2015. Published March 2015. Originally
See Fig. 1.
approved 1998. Last previous edition approved 2010 as F1911–05(2010). DOI:
6.2.2.1 Deployment—Stretchthecoilsoutandallowthemto
10.1520/F1911-05R15.
rotate (spiral) naturally around their central axis. Allowing the
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
coil to rotate will ensure that there is no mechanical stress
Standards volume information, refer to the standard’s Document Summary page on
within the obstacle before tying. Locate the coil loops uni-
the ASTM website.
formly at the specified coil spacing. The coil spacing is
The last approved version of this historical standard is referenced on
www.astm.org. predetermined by one or more permanently attached cables
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
F1911 − 05 (2015)
FIG. 2 45° Arm Installation Wire Reinforced and Non-Wire Rein-
forced Barbed Tape Concertina
6.2.3.2 Tie Points—Before making the final attachment to
the fence, inspect the coil for tangles and proper coil loop
spacing. Improper coil loop spacing and tangles will reduce the
coil’s specified yield length. Attach the parallel coil loops to
FIG. 1 “V” Arm Installation Wire-Reinforced and Non-Reinforced
the fence fabric at the desired spacing determined by the spacer
Barbed Tape Concertina.
cables. Every coil intersecting the fence need not be tied. Ties
for detention applications are stainless steel 16 gage minimum;
running the entire length of the roll. The number of cables for commercial and industrial applications stainless steel 18
depends largely on the diameter and application. Coil loop gage minimum is adequate. Large stainless steel hog rings
spacing for non-reinforced products are generally 12.0 in. See capable of providing an overlapping wrap around both the
Fig. 2. chain link and barbed tape may be used. Hog rings are not
6.2.2.2 Tie Points—Before making the final attachment to recommended where electronic detection is an integral part of
the fence, inspect the coils for tangles and proper coil spacing. the barrier system.
Attach the first ties to the single strand of barbed wire, cable or 6.2.4 Bottom of the Fence Installation—Ground barriers are
coils placed horizontal, in vertical stacks at the base of the
tension wire located in the barb arm. Tie parallel coil loops at
the desired spacing, determined by the spacer cable.Attach the fence and tied consecutively together. Stacked coils are tied
second tie points to the top of the chain link at the desired approximately 36 in. to 48 in. on center (o.c.) to adjacent rows.
spacing. Tie wires for detention applications are stainless steel See Fig. 3.
16 gage minimum, for commercial and industrial applications 6.2.4.1 Deployment—Follow deployment instructions de-
stainless steel 18 gage minimum is adequate. Large stainless scribed in (6.2.2.1).
steel hog rings with a minimum cross section of 12 ⁄2 gage, 6.2.4.2 Tie Points—Follow tying instructions from 6.2.3.2.
may be used. Hog rings are not recommended where electronic 6.2.5 Splicing—Connect the trailing end of an installed roll
detection is an integral part of the barrier system. For high and the leading end of an un–installed roll. Connect the two
security application, the hog ring cross section must be strong rolls at the point where the cable (or cables) from each roll
enough to prevent opening the ring by pulling on the barbed come together. Tie the cable loops and closest barb cluster
tape. together with the minimum 18 gage stainless steel tie wire.
6.2.3 Side of The Fence Installation —Coils shall be in- This tie secures the ends of the cables and matching barb
stalled horizontally on the approach side of the fence. Design clusters together. Maintain a uniform diameter by aligning the
criteria will obviously change depending on the threat. remaining barb clusters around the perimeter of the coil.
6.2.3.1 Deployment—Follow deployment instructions de- Complete the splice by tying the end turns of the leading and
scribed for top of the fence (6.2.2.1). trailing rolls together. Place additional ties where the coils
F1911 − 05 (2015)
6.2.6 Ground Anchors—Coils deployed on the ground shall
be anchored as required, depending on the application and
security threat. For security applications, place ground stakes 5
ft. o.c. Multiple coils on the ground for high security applica-
tions; stakes are generally 10 ft o.c. with an alternating offset
pitch of 5 ft between rows. Length and type of anchors are
determined in accordance with inherent weather and soil
conditions.
6.3 Non-Reinforced24/30in.DoubleCoil(HelicalTypeII):
6.3.1 Description—Double coil Type II is constructed of
one 24 in. diameter helical coil inside a 30 in. diameter helical
coil. Inner and outer coils are alternately joined together with
four cables at a predetermined spacing. Type II barbed tape is
the only barbed obstacle having a top and bottom. The bottom
is located mid distance between the shorter pair of spacer
cables. See Fig. 4.
6.3.2 Top of the Fence Installation —Barb arms are recom-
mended for top of the fence installations. Single 45° barb arms
with a single strand of barbed wire, tension wire or ⁄16 in.
diameter cable, located in the outer position of the arm will
support coils deployed at the top of the fence. Barb arms are
positioned so that the arms are out of reach from the approach
side of the obstacle.
6.3.2.1 Deployment—Stretch the coil out and locate the coil
loops uniformly as predetermined by the four spacer cables.
Rotate the entire coil assembly approximately 45°; positioning
the bottom, mid way between the tension wire and top of the
fence fabric. Inner and outer coil spacings are fixed at 24 in.
The alternating offset spacing between the inner and outer coils
is 12 in. o.c. at the bottom of the obstacle.
FIG. 3 Side and Bottom of Fence Installation Wire Reinforced and
6.3.2.2 Tie Points—Before making the final attachment to
Non-Reinforced Barbed Tape Concertina.
the fence, inspect the coils for tangles and proper coil spacing.
The inner and outer coils shall be securely attached in two
would have been spot welded if manufactured into one locations: one to the barbed wire, tension wire or cable located
continuous roll. Additional ties may be required to strengthen
in the barb arm and the other to the top of the fence fabric. See
or improve on the appearance of the splice. Fig. 5. For installations using “V” arms; a second row of
barbed tape shall be installed to prevent using the arm as a
NOTE 2—It is important that larger diameter coils with two or more
breaching aid. To reduce distortion as a result of adverse
cables have at least one cable continue uninterrupted through the entire
run. This prevents diameter distortion at the splice. weather conditions, spacer cables shall remain tight throughout
FIG. 4 Double Coil Non–Reinforced
F1911 − 05 (2015)
FIG. 5 Top of the Fence 45° Barb Arm Installation
the installation. 16 gage, minimum, stainless steel ties are used
to secure barbed obstacles to the fence. See Fig. 6.
6.3.3 Side of the Fence Installations—Coils shall be in-
stalled horizontally on the approach side of the fence. Design
criteria will obviously change depending on the threat.
FIG. 7 Side and Bottom of the Fence Installation Non-Reinforced
Barbed Tape
6.3.3.1 Deployment—Follow the same procedure for de-
ployment as described in 6.2.3.1, except, that after dispensing
the coil, rotate the coil assembly 90° and place the bottom of
the obstacle against the fence.
6.3.3.2 Tie Points—Attach the inner and outer coil loops to
the fence fabric 12 in. o.c. 16 gage minimum stainless tie wires
are used for this purpose.
6.3.4 BottomoftheFenceInstallations—Coils at the base of
the fence shall be installed with the bottom of the coil resting
on the ground or prepared surfaces. Consult with the manufac-
turer for information covering coil stacking or unusual finished
grade conditions that may cause installer to deviate from the
standard installation.
6.3.4.1 Deployment—Follow the same procedure for de-
ployment as described in 6.3.2.1, except, that after dispensing
the coil, the bottom of the obstacle shall rest on the ground.
6.3.4.2 Tie Points—Attach the outer coil loops to the fence
fabric 24 in. o.c. 16 gage minimum stainless tie wires are used
for this purpose. Adjacent coils stacked vertically and running
horizontally are tied together approximately 48 in. o.c.
throughout the stack.
6.3.5 Splicing—Connect the trailing end of the installed roll
and the leading end of the un–installed roll. Connect the two
FIG. 6 Top of the Fence “V” Arm Installation rolls at the point where the four spacer cables terminated at the
F1911 − 05 (2015)
end turns.Adjust the rolls so that the top of each roll is relative 6.4.3.1 Deployment—Stretchthecoilsoutandallowthemto
to one another.Align the four spacer cables and matching barb rotate (spiral) naturally around their central axis. Allowing the
clusters. At each attachment point, tie the two cables and coil to rotate will ensure that there is no mechanical stress
matching barb clusters together. Complete the splice with 16 within the obstacle before tying. Locate the coil loops uni-
gage stainless steel tie wires diagonally across the barb. Hog formly at the specified coil spacing. Coil loop spacing for
rings may be used if they are designed for the purpose. Repeat concertina products will vary depending on the coil configu-
this procedure for the remaining cables, as if they where ration and number of clips. Coil loop spacings for wire
manufactured into one continuous roll. Additional ties may be reinforced products are generally 12.0 in. See Fig. 2.
required to strengthen or improve on the appearance of the 6.4.3.2 Tie Points—Before making the attachment to the
splice. fence, inspect the coils for tangles and proper coil spacing.
Attach the parallel coil loops to the side of the fence using
6.3.6 Ground Anchors—Coils deployed on the ground shall
be anchored as required, depending on the application and twistable tie wires. Ties for detention applications are stainless
steel 16 gage minimum. For commercial and industrial appli-
security threat. For security applications, place ground stakes 5
ft. o.c. Multiple coils on the ground for high security applica- cations stainless steel 18 gage minimum ties are adequate.
Large stainless steel hog rings used for this purpose should be
tions: stakes are generally 10 ft. o.c. with an alternating offset
pitch of 5 ft. between rows. Length and type of anchors are of sufficient size to wrap completely around the tape and fabric
with an overlap.
determined in accordance with inherent weather and soil
conditions. 6.4.4 Bottom of the Fence Installation—Coils installed at
thebaseofthefenceareplacedhorizontalinvert
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: F1911 − 05 (Reapproved 2010) F1911 − 05 (Reapproved 2015)
Standard Practice for
Installation of Barbed Tape
This standard is issued under the fixed designation F1911; 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
1.1 This practice covers the installation procedure for barbed tape.
1.2 The primary purpose of this practice is to guide those responsible for or concerned with the installation of barbed tape on
chain link fences, masonry walls, roofs or used as ground barriers. This standard is not intended to cover aspects of perimeter
security for establishing levels of product performance or give analysis relating to various design comparisons.
1.3 This standard involves the use of material, that may cause injury, including exposure to hazardous materials, and operation
of specialized equipment.
1.4 The values stated in inch-pound units are to be regarded as standard. No other units of measurement are included in this
standard.
1.5 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.
2. Referenced Documents
2.1 ASTM Standards:
F1379 Terminology Relating to Barbed Tape
F1910 Specification for Long Barbed Tape Obstacles
F1916 Specifications for Selecting Chain Link Barrier Systems With Coated Chain Link Fence Fabric and Round Posts for
Detention Applications (Withdrawn 2008)
3. Terminology
3.1 Refers to Terminology F1379.
4. Significance and Use
4.1 This practice is intended to provide standard requirements utilizing specialized equipment and hand tools.
4.2 Ensure that the barbed tape is fabricated from acceptable material and well constructed. Field verification of the barbed
tape’s acceptability shall be in accordance with the project’s specifications and this specification.
5. Site Preparation
5.1 The owner shall specify the location in which the barbed tape shall be installed by furnishing drawings or personal
instruction.
5.2 Barbed tape obstacles shall be in accordance with Specification F1910 barbed tape specifications.
NOTE 1—Refer to Terminology F1379 for barb configuration and cross sections.
This practice is under the jurisdiction of ASTM Committee F14 on Fences and is the direct responsibility of Subcommittee F14.40 on Chain Link Fence and Wire
Accessories.
Current edition approved July 1, 2010March 1, 2015. Published October 2010March 2015. Originally approved 1998. Last previous edition approved 20052010 as
F1911F1911–05(2010).–05. DOI: 10.1520/F1911-05R10.10.1520/F1911-05R15.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
The last approved version of this historical standard is referenced on www.astm.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
F1911 − 05 (2015)
6. Installation
6.1 When the specifications are unclear, refer to these instructions or contact the owner for information covering placement, coil
attachment, splicing, etc.
6.2 Non-Reinforced (Concertina) : (Concertina):
6.2.1 Description—Barbed obstacle capable of being permanently or temporarily installed. Barbed tape used for some
temporary installations shall have the ability of being recovered and used repeatedly.
6.2.2 Top of the Fence Installation —Installation—Barb Arms are recommended for top of the fence installations. Single 45°
barb arms with a single strand of barbed wire or tension wire located in the outer position of the arm will support coils deployed
at the top of the fence. Barb arms are positioned so that arms are out of reach from the approach side. “V” arms are not
recommended for security applications where climbing is a threat or where only one row of barbed tape is specified. Two rows
of barbed tape are recommended where “V” arms are specified. See Fig. 1.
6.2.2.1 Deployment—Stretch the coils out and allow them to rotate (spiral) naturally around their central axis. Allowing the coil
to rotate will ensure that there is no mechanical stress within the obstacle before tying. Locate the coil loops uniformly at the
specified coil spacing. The coil spacing is predetermined by one or more permanently attached cables running the entire length of
the roll. The number of cables depends largely on the diameter and application. Coil loop spacing for non-reinforced products are
generally 12.0 in. See Fig. 2.
6.2.2.2 Tie Points—Before making the final attachment to the fence, inspect the coils for tangles and proper coil spacing. Attach
the first ties to the single strand of barbed wire, cable or tension wire located in the barb arm. Tie parallel coil loops at the desired
spacing, determined by the spacer cable. Attach the second tie points to the top of the chain link at the desired spacing. Tie wires
for detention applications are stainless steel 16 gage minimum, for commercial and industrial applications stainless steel 18 gage
minimum is adequate. Large stainless steel hog rings with a minimum cross section of 12 ⁄2 gage, may be used. Hog rings are not
recommended where electronic detection is an integral part of the barrier system. For high security application, the hog ring cross
section must be strong enough to prevent opening the ring by pulling on the barbed tape.
FIG. 1 “V” Arm Installation Wire-Reinforced and Non-Reinforced Barbed Tape Concertina.
F1911 − 05 (2015)
FIG. 2 45° Arm Installation Wire Reinforced and Non-Wire Reinforced Barbed Tape Concertina
6.2.3 Side of The Fence Installation —Coils shall be installed horizontally on the approach side of the fence. Design criteria will
obviously change depending on the threat.
6.2.3.1 Deployment—Follow deployment instructions described for top of the fence (6.2.2.1).
6.2.3.2 Tie Points—Before making the final attachment to the fence, inspect the coil for tangles and proper coil loop spacing.
Improper coil loop spacing and tangles will reduce the coil’s specified yield length. Attach the parallel coil loops to the fence fabric
at the desired spacing determined by the spacer cables. Every coil intersecting the fence need not be tied. Ties for detention
applications are stainless steel 16 gage minimum; for commercial and industrial applications stainless steel 18 gage minimum is
adequate. Large stainless steel hog rings capable of providing an overlapping wrap around both the chain link and barbed tape may
be used. Hog rings are not recommended where electronic detection is an integral part of the barrier system.
6.2.4 Bottom of the Fence Installation—Ground barriers are coils placed horizontal, in vertical stacks at the base of the fence
and tied consecutively together. Stacked coils are tied approximately 36 in. to 48 in. on center (o.c.) to adjacent rows. See Fig. 3.
6.2.4.1 Deployment—Follow deployment instructions described in (6.2.2.1).
6.2.4.2 Tie Points—Follow tying instructions from 6.2.3.2.
6.2.5 Splicing—Connect the trailing end of an installed roll and the leading end of an un–installed roll. Connect the two rolls
at the point where the cable (or cables) from each roll come together. Tie the cable loops and closest barb cluster together with
the minimum 18 gage stainless steel tie wire. This tie secures the ends of the cables and matching barb clusters together. Maintain
a uniform diameter by aligning the remaining barb clusters around the perimeter of the coil. Complete the splice by tying the end
turns of the leading and trailing rolls together. Place additional ties where the coils would have been spot welded if manufactured
into one continuous roll. Additional ties may be required to strengthen or improve on the appearance of the splice.
NOTE 2—It is important that larger diameter coils with two or more cables have at least one cable continue uninterrupted through the entire run. This
prevents diameter distortion at the splice.
6.2.6 Ground Anchors—Coils deployed on the ground shall be anchored as required, depending on the application and security
threat. For security applications, place ground stakes 5 ft. o.c. Multiple coils on the ground for high security applications; stakes
are generally 10 ft o.c. with an alternating offset pitch of 5 ft between rows. Length and type of anchors are determined in
accordance with inherent weather and soil conditions.
6.3 Non-Reinforced 24/30 in. Double Coil (Helical Type II):
6.3.1 Description—Double coil Type II is constructed of one 24 in. diameter helical coil inside a 30 in. diameter helical coil.
Inner and outer coils are alternately joined together with four cables at a predetermined spacing. Type II barbed tape is the only
barbed obstacle having a top and bottom. The bottom is located mid distance between the shorter pair of spacer cables. See Fig.
4.
F1911 − 05 (2015)
FIG. 3 Side and Bottom of Fence Installation Wire Reinforced and Non-Reinforced Barbed Tape Concertina.
6.3.2 Top of the Fence Installation —Barb arms are recommended for top of the fence installations. Single 45° barb arms with
a single strand of barbed wire, tension wire or ⁄16 in. diameter cable, located in the outer position of the arm will support coils
deployed at the top of the fence. Barb arms are positioned so that the arms are out of reach from the approach side of the obstacle.
6.3.2.1 Deployment—Stretch the coil out and locate the coil loops uniformly as predetermined by the four spacer cables. Rotate
the entire coil assembly approximately 45°; positioning the bottom, mid way between the tension wire and top of the fence fabric.
Inner and outer coil spacings are fixed at 24 in. The alternating offset spacing between the inner and outer coils is 12 in. o.c. at
the bottom of the obstacle.
6.3.2.2 Tie Points—Before making the final attachment to the fence, inspect the coils for tangles and proper coil spacing. The
inner and outer coils shall be securely attached in two locations: one to the barbed wire, tension wire or cable located in the barb
arm and the other to the top of the fence fabric. See Fig. 5. For installations using “V” arms; a second row of barbed tape shall
be installed to prevent using the arm as a breaching aid. To reduce distortion as a result of adverse weather conditions, spacer cables
shall remain tight throughout the installation. 16 gage, minimum, stainless steel ties are used to secure barbed obstacles to the
fence. See Fig. 6.
6.3.3 Side of the Fence Installations —Installations—Coils shall be installed horizontally on the approach side of the fence.
Design criteria will obviously change depending on the threat.
6.3.3.1 Deployment—Follow the same procedure for deployment as described in 6.2.3.1, except, that after dispensing the coil,
rotate the coil assembly 90° and place the bottom of the obstacle against the fence.
6.3.3.2 Tie Points—Attach the inner and outer coil loops to the fence fabric 12 in. o.c. 16 gage minimum stainless tie wires are
used for this purpose.
6.3.4 Bottom of the Fence Installations—Coils at the base of the fence shall be installed with the bottom of the coil resting on
the ground or prepared surfaces. Consult with the manufacturer for information covering coil stacking or unusual finished grade
conditions that may cause installer to deviate from the standard installation.
6.3.4.1 Deployment—Follow the same procedure for deployment as described in 6.3.2.1, except, that after dispensing the coil,
the bottom of the obstacle shall rest on the ground.
F1911 − 05 (2015)
FIG. 4 Double Coil Non–Reinforced
FIG. 5 Top of the Fence 45° Barb Arm Installation
6.3.4.2 Tie Points—Attach the outer coil loops to the fence fabric 24 in. o.c. 16 gage minimum stainless tie wires are used for
this purpose. Adjacent coils stacked vertically and running horizontally are tied together approximately 48 in. o.c. throughout the
stack.
6.3.5 Splicing—Connect the trailing end of the installed roll and the leading end of the un–installed roll. Connect the two rolls
at the point where the four spacer cables terminated at the end turns. Adjust the rolls so that the top of each roll is relative to one
another. Align the four spacer cables and matching barb clusters. At each attachment point, tie the two cables and matching barb
clusters together. Complete the splice with 16 gage stainless steel tie wires diagonally across the barb. Hog rings may be used if
they are designed for the purpose. Repeat this procedure for the remaining cables, as if they where manufactured into one
continuous roll. Additional ties may be required to strengthen or improve on the appearance of the splice.
6.3.6 Ground Anchors—Coils deployed on the ground shall be anchored as required, depending on the application and security
threat. For security applications, place ground stakes 5 ft. o.c. Multiple coils on the ground for high security applications: stakes
are generally 10 ft. o.c. with an alternating offset pitch of 5 ft. between rows. Length and type of anchors are determined in
accordance with inherent weather and soil conditions.
6.4 Wire Reinforced, (Single Coil Concertinas),
6.4.1 Description— Diameters ranging from 18 in. to 61 in. are fabricated by cold clinching the flat barbed portion of the tape
around a core wire. Adjacent alternate loops are clipped together around the circumference, creating the concertina effect.
F1911 − 05 (2015)
FIG. 6 Top of the Fence “V” Arm Installation
FIG. 7 Side and Bottom of the Fence Installation Non-Reinforced Barbed Tape
F1911 − 05 (2015)
6.4.2 Top of the Fence Installation —Installation—Barb arms are recommended for top of the fence installations. Single 45°
barb arms with a single strand of barbed wire or tension wire located in the outer position of the
...