ML20126K805

Safeguards Amend SG-1 to License SNM-696 for Ga Co, Incorporating Specific Safeguards Requirements for SNM

ML20126K805
Person / Time
Site:	07000734 (SNM-0696-A-SG-1, SNM-696-A-SG-1)
Issue date:	03/12/1985
From:	Brown W NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS)
To:
Shared Package
ML20126K792	List: ML20126K789 ML20126K805
References
NUDOCS 8507300487
Download: ML20126K805 (5)

Text

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UNITED STATES NUCLEAR REGULATORY COMMISSION LICENSE AMENDMENT FOR SPECIAL NUCLEAR MATERIAL SAFEGUARDS Pursuant to the Atomic Energy Act of 1954, as amended, the Energy Reorgani-zation Act of 1974, and Title 10, Code of Federal Regulations, Chapter 1, Part 70, the following amendment tolthe special nuclear material license identified below is hereby issued, incorporating specific safeguards require-ments for special nuclear material.

Licensee:

e l Name:

GA' Technologies, Inc.

License No.:

SNM-696 Address:

P. 0. Box.85608 Safeguards Amendment:

SG-1 San Diego, California 92138

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Docket No.:

70-734 s..

Date Issued:

March 12, 1985 CONDITIONS 1.0 FACILITY ORGANIZATION Currently there are no license conditions in this section.

The necessary information has been incorporated into an approved plan.

2.0 FACILITY OPERATION 2.1 The licensee shall follow Revision A of his Fundamental Nuclear Material Control Plan, dated October 1982; as revised by submittals dated February 3, 1984 (pages 1-8, 4-2, 4-3, 8-2, and 8-3) and January 25, 1985 (pages 7,6 through 7-20, all dated February 1985);

and as may be revised in accordance with the provisions of 10 CFR 70.32(c).

2.2 Operations invni.'ing special nuclear materials which are not described in the Plan identified in Condition 2.1 shall not be initiated until an appropriate safeguards plan has been approved by the Nuclear Regulatory Commission.

s 8507300487 850312 PDR ADOCK 07000734 C

PDR Ei4 CLOSURE A

Amendment No. SG-1 Cocket No.70-734 License No. SNM-696 2.3 Upon reporting an unbiased, adjusted Inventory Difference (ID) value for any regular material balance period that exceeds 1.50 times its i

applicable regulatory LEID limit (or LEMUF limit) and which also exceeds.300 grams HEU, or U-235 contained in HEU or 9000 grams U-235 contained in LEU, the licensee shall immediately initiate a reinventory of the Plant giving rise to such ID.

Unbiased, adjusted ids shall be obtained by applying any appropriate bias correction to the Inventory Difference value in accordance with Section 4.2.4.1 of the Plan identified in Condition 2.1, and adjusting the resulting ID for any prior period adjustment made to the Beginning Inventory value.

s 1 3.0 MEASUREMENTS 3.1 Notwithstanding the requirements of 10 CFR 70.58(e) the licensee need.not measure the special nuclear material content of encapsula'ted SNK sources which are unopened for research and develppqent, cal)bration activities, or customer service.

3.2 Notwithstanding the requirements of 10 CFR 70.51(e)(2) to inventory all SNM possessed by the licensee, waste materials in Plant III destined for ultimate disposal need not be included in physical inventory listings.

3.3 For those materials measured by non-destructive assay (NDA), the licensee may calculate the element content based on the U-235 NDA measurement and a prior isotopic abundance measurement that can be demonstrated to be representative of the material being measured by MDA.

4.0 MEASUREMENT CONTROL 4.1 All identifiable covariance effects shall be taken into account in the calculation of LEID (or LEMUF).

4.2 LEID (or LEMUF) calculations shall not be required for material balances associated with Plants III, IV and V provided the associated Inventory Difference value does not exceed 300 grams uranium or U-235.

4.3 Notwithstanding the requirements of 10 CFR 70.57(b)(4) to determine systematic sampling errors and perform engineering tests to establish or verify the applicability of existing mixing and,

sampling procedures, the licensee shall follow Section 4.3 of the Plan identified in License Condition 2.1.

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Amendment No. SG-1 Docket No.70-734 License No.

SNM-696 4.4 Notwithstanding the requirements of 10 CFR 70.57(b)(8) to measure standards and replicates for volume systems, to determine separate random errors for sampling and analytical, and to generate random errors for bulk and NDA from replicate measurements of process materials, the licensee shall follow Sections 4.2.2 arid 4.4.1 of the Plan idefitified in License Cpndition 2.1.

4.5 Notwithstanding the requirements of 10 CFR 70.57(b)(10) to perfom bias calculations and corrections and determine limits of systematic errors, the licensee shall follow Section 4.2.4 of the Plan identified in License Condition 2.1.

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$ l 5.0 INVENTORY 5.1 Notwithstandingtherequirementof10CFR70.51(e)(2),toinventory all possessed SNM, the licensee shall follow Section 3.1-2 of the Plan iden'tified.in Condition 2.1 with respect to ventilation system holdup.

.w 5.2 In accordance with the provisions of 10 CFR'70.51(e)(6), the licensee shall maintain a system of material control and accounting such that neither the uranium element nor the U-235 LEID (or LEMUF) value for the HTGR Fuel Fabrication Operations (Plant I) shall exceed 1100 grams for any physical fRventory taken between November 1, 1984 and October 31, 1985.

5.3 Notwithstanding the requirement of 10 CFR 70.51(f)(2)(ii) to verify the integrity of tamper-safing devices at the time of inventory the licensee may follow Section 5.12-2 of the Plan identified in Condition 2.1 with respect to HTGR fuel blocks.

6.0 RECORDS AND REPORTS 6.1 The licensee shall use his or his designated agent's measured values for SNM accounting, except as provided in Condition 3.1.

7.0 I'NTERNAL CONTROLS 7.1 Notwithstanding the requirements of 10 CFR 70.51(e)(1)(iv) and 70.58(h) to maintain current knowledge of the. identity, quantity,

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and location of all discrete items and containers of SNM, the licensee shall follow Section 7.3, and all subsections therein, of the Plan identified in Condition 2.1.

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Amendment No. SG-1 Docket No.70-734 License No.

SNM-696 8.0 MANAGEMENT 8.1 Notwithstanding the requirements of 10 CFR 70.57(b)(2), (b)(3), and 70.58(c)(2) to conduct management reviews and audits a.t intervals not to e3ceed twelve months, the licensee shall follow Sections. 1.2.5, 4.1.3, 4.1.4j 8.2.1, 8.2.1.1 of the Plan identified in Condition 2.1.

For the purpose of this Condition, the maximum 15-month interval between Review Committee briefings is hereby defined as a period not to exceed 460 calendar days.

9.0 PHYSICAL PROTECTION REQUIREMENTS FOR FORMULA QUANTITIES OF STRATEGIC SPECIAL NUCLEAR MATERIAL 9.1.A Th'e licensee shall follow Revision B of the security plan entitled, "GA Technologies, Inc. Category I Fixed Site Facility Physical Protection Plan," dated November 1982, as revised by letter 696-5039," dated September 29, 1983 and as revised pursuant to the provis.igns of 1Q,,CFR 70.32(e).

9.1.B The licensee shall follow the " Safeguards Contingency Plan," dated September 1982, as revised pursuant to the provisions of 10 CFR 70.32(g).

9.1.C The licensee shall follow the plan, IGA Technologies, Inc. Security Officer Training and Qualification Plan," dated March 1983, as revised by pages dated March 19, 1983, and as further revised pursuant to the provisions of 10 CFR 70.32(e).

10.0 NOT USED 11.0 NOT USED 12.0 PHYSICAL PROTECTION REQUIREMENTS FOR SPECIAL NUCLEAR MATERIAL OF MODERATE AND LOW STRATEGIC SIGNIFICANCE 12.1 The licensee shall maintain and fully implement all provisions of the Commission approved Ph*ysical Security Plan, including changes made pursuant to the authority of 10 CFR 70.32(e). The approved security plan consists of a GA Technologies, Inc. document, withheld from public disclosure pursuant to 10 CFR 73.21, entitled, " Fixed Site ana Transportation Plan for the Protection of Special Nuclear Material of Moderate and Low Strategic Significance," dated February 1983, as amended by letter dated Match 17, 1983.

12.2 In the event GA Technologies, Inc. plans to import and assume responsibility for SNM of moderate strategic significance they shaTl amend their plan and provide NRC with the measures to be used to l

protect the material in accordar.ce with 10 CFR 73.67(e)(6), 120 days prior to the proposed shipping date.

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. Amendment No. SG-1 Docket No.70-734 EAR 121935 License No.

SNM-696' 12.3 In the event GA Technologies, Inc. plans to import and assume responsibility for SK4 of low strategic significance they shall amend their plan and provide NRC with the measures to be used to protect the material in accordance with 10 CFR 73.67(g)(5), 120 days prior to,the proposed shipping date.

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,, For the Nuclear Regulatory Comission M%

Willard 3. Brown, Chief Fuel Facility SG Licensing Branch Division of Safeguards, NMSS

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5-3 Positive Barriera B.enefito The use of barriers offers twoimpor-Positive barriers should be designed t benefits to a pnysical security posture.

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a. Positive barriers are required for the

number of security posts needed and on entire perimeter of controlled, limited, or e frequency of use for each post.

exclusion areas (see chapter 5). Specific types

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of barriers cannot be predesignated for all situati ns; however, they should incorporate 2

Considerations the following elements:

Protective physical barriert should (1) S'tructural perimeter barriers, such as used in the protection of the entire fences, walls, etc.

-tallation or facility and in establishing (2) Provisions at points of entrance and nricted areas.The followmg guidance may exit for identification checks by either pass used for protective structural barriers and and badge exchange or badge examination e types of areas they serve:

(chapter 4).

a. The size of an area, which in some cases (3) Opaque barriers to preclude visual av embrace extensive tracts of land, will c mpr mise by unauthorized personnel dend upon the nature of the security may be necessary in certam instances.

.:siderations. These considerations will ne a bearing on the essentiality and cost.

b. When the greatest degree of security is ectiveness of establishing strycttital barri..

essential, additional structural barriers may s on the outer perimeter. You can derme the be required. Two lines of structural barriers

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should be mstalled on the perimeter; such-lines of barriers should be separated by not ni) Structural barriers at control points less than 15 feet and not more than 150 feet and other points of possible entrance and for optimum enforcement, protection, and exit.

e ntrol, (2) Natural or structural barriers between control points that are sufficiently obstruc-

c. If the nature of a secure area dictates a tive and difficult to traverse-to control requirement for a hm,ited or exclusion area on and to preclude accidental intrusion.

a temporary or infrequent basis, you may not be able to use the types of physical structural

b. The size of a restricted area will depend perimeter barriers described in paragraph 5-tne degree of compartmentahzation re-3a. In such cases, a temporary limited area or

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.e, size should be kept to a minimum the lack of proper phys.1 cal barriers is com-unsistent with operational efficiency. Posi-pensated for by additional security posts, ive barriers should be established for:

patrols, and other security measures during til Controlling vefticular and pedestrian the period of r.striction (chapter 4).

traffic flow.

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(2) Checking identification of personnel 5-4 Fence Design Criteria entering or departing.

Four types of fencing authorized for (3) Defining a buffer zone for more highly use in protecting restricted areas are cham, -

ir dassified areas.

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heights for conventional arms / ammo securi-drawing M16-10 tfigure ll). For added resist q~ @7.4 installation. avadabdity of materials. and menh fencing. Chain hnk fences must beofS may be omitted. Fencing may be painted L r 3*.y i,

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per side, and a twisted and barbed selvage at sult of weather (rusting) and fadure to kwp or increase thesecurity ofexisting fences that top and bottom. It must be taut and securely fencmg fastened to the post w hich affects the f

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inches (5.1 cm) of hard ground or paving. On MOE 3 '

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excluding the top guard, and must be firmly between poles with one roll on top of another affixed to posts not more than 6 feet (1.S2 m) or in a pyramid arrangement (minimum of apart. The distance between strands will not three rolls). The ends must be staggered or exceed 6 inched tapproxitnately 15.3 cm) and Tastened together and the base wire picketed

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CHAPTER 3 PERIMETER BARRIERS Page i n trodu ctio n......................................................... 3 1 S tandard Fe nc e s...................................................... 3 2 B ou nd ary......................................................... 3 2 Te m porary......................................................... 3 2 Se c u r a y........................................................ :. 3 2 Enhanc emen ts [........................j.............................. 3 2 B ar be d Wire....................... ~................................ 3 2 g

l B arbe d Ta pe....................................................... 3 3 General Purpose Barbed Tape Obstacle (GPBTO)......................... 3-4 Conc l us io n s....................................................... 3 5 En hanced Standard F:nces.............................................. 3 5 Ad vanced Perimeter {larriers............................................ 3 7 Hori zo n tal, Ro w s..................................................... 3 7 Three Mo u nds..................................................... 3 7 V-Fe nce ( Person nel)................................................. 3 8 V. Fence (Personnel / Vehicle).......................................... 3 8 Le t hal B arrie r's.................................................... 3 8 Penetratio:y!et. hods and Too Ve h:. le Barriers....... v. ls.............................

..............a.9 Earthen Barriers and Excavations...................................... 3 13 Conc re te B arrie rs................................................. 3 13 M e t a1 0 u ard ra il s................................................... 3 14 Advanced Vehic le Barriers........................ _.............. 3 14 Vehicle Pene: ration Methods.......................................... 3 17 Co nc l u s i o n s....................................................... 3 17 Gates.............................................................318 I mro du c t ion...................................................... 3 18 E x is t i n g G at e s.................................................... 3 18 Pe n e t rat i o n...................................................... 3 1 8 Enhancements

......................................................321 A d va nc e d Co ne pt s..................................,............... 3 22 R e fe re n c e s.......................................................... 3 24 INTRODUCTION The mesi common type or perimeter barrier is chain li..k fencing with gates of comparab!: materials. Penme:er Perimeter barrie s form the outermost protective element barriers can be quite extensive and cost per lineal foot of a physical security system and function to exclude should be considered in the initial installation. Most ev unauthorized personnel from an area. Esisting barriers.

isting industrial. type perimeter barrier systems may be

>uch as fences and gates, may not significantly delay penetrated quite rapidly with simple tools or breached by dctermined adsersaries: howeser, properly designed and

climbing, positioned barriers could delay personnel and schicles long enough for other elements of the physical protection system to function, i.e.. to detect. assess, respond. This The barrier portion of a physical prote: tion 5.l stem around chapter presents results of the esaluation programs to a protected area may be developed from the options sug.

date for sarious personnel and schicle barriers. Upgraded gested in this chapter. Consideration should be given to designs and adt:.nced concepts for peritneter barriers are integrating the perimet:r barrier and the perimeter detec.

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tica system. A barrier which prosides significar.: peu.

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tration delay may hold the adv ersary at the point of intrusion Security long enough to assess the alarm and to allow a response

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force to intercept the intruder at the point of alarm.

Security fences usually consist of galvanized steel posti.

galvanized steel mesh fabric, and 45' externion arms There appear to be many methods of thwarting or signif-angled outward to which three strands of barbed wire or ic?ntly delaying vehicle penetrations into a protected area coiled concertina

• wire are installed. Security fences are without exctbitant expenditures in equipment and land not usually less than 8 feet high and are braced, as neces-area. However, providing significant delay for a deter-sary, at all corners, gate openings, or structurally inade-mined adsersary who wants to cross a perimeter barrier quate points. The fabric is usually clamped to a bottom on foot is a much more difficult problem and may require rail or cable. Top and bottom, rails are used to help sup-significant hardware and land area expenditures if lethal port the fabric, as wc!! as to add to the over all bracing of barriers (see p. 310 or firepow*er from guards is not an-the fence. These rails, together with all other bracing, option.

are located on the inside of the fabric. All vertical posts are set in circular concrete anchor footings. In addition I improving the penetration resistance of perimeter gates to line posts, much heavier comer or terminal posts are and portals to resist stealthy and forcible penetration, used in perimeter fence construction.

without providing equivalent pyotection features for the entire perimeter, would not provide balanced perimeter Although chain link fuces may serve as a deterrent to hardness.

casual intruders, they would have very little effect on determined adversaries. Intmsion times for typical secu.

' STANDARD FENCES:

rity rences 'taken from a variety of gosernment agency tests show that chain link fences do not delay determined Ferices insta!!cd around a sjt.e e,an be classi,f,ied as bound-adversaries _for more the.n a few tenths of a rninute.' 8 ary, temporary, or perimeter insta!!stions'and are con-structed from a variety of materials.

ENHANCEMENTS

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SecErity fences topped with barbed wire, barbed tape A boundary fence is often used to define the outermost concertina (BTC), or general purpose barbed tape obsta-

!!mit or border of a facility. Sicns are placed on the cle (GPBTO) do not prevent intrusion. Howes er. if addi-fence, usually at 50-foot intervals, to show ownership tional ro!!s of barbed wire or tape are placed on or near and to warn casual transients of possible dancers within existing perimeter fences, penetration can be made more the perimeters. A typical boundary fence is 4 feet high difficult and more time consuming.

and is constructed of"T" posts to which four strands of barbed wire are installed. This type of fence is often Barbed Wire referred to as " cattle fence" and is used only to define a houl'dary. The boundary fence should not be considered Barbed wire has been used for many years as the stand-as a physical burier of any consequence.

ard enhancement for most fences. Although it snags and rips clothing. it seldom punctures or facerates a properly Te.nparary prepared adsersary. In addition to its common installa- (

Temporry fences are installed to deny access to indisid. '

tion on boundary fences and our riggers on perimeter fences. barbed wire is also formed into concertina coils, ual aren and are used to enclose construction or storage facilities adjacent to a security area. The construction depicted in Figure 31. Concertina coils are made of singic strand, spring stect wire with four. point barbs at-materials used in this type of fence range from 7. foot, tached every 2 inches.

high.4 by 4 inch wood posts with 6 by 6 inch, IG gauge mesh to 8. foot high, 2.375. inch outside diameter steel posts set in concrete with Il gauge, chain link mesh, bracing. and 15' estension arms to which three strands of When estended, the coils are approximately 36 inches in barbed w ire are insta'lled. Personnel penetration times for diameter and 50 feet long. Barbed wire strands are formed a temporary fence sange from.1 to IS seconds when in the same manner except that barb spacing is length-glos es. boltcutters, or pipe is u>cd as an aid.

ened to 3 to 6 inches.

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wire, concenina topped fence offers an increased psy-ch I gical deterrent, it can be crossed within 10 seconds EXTENDED LENGTH with a simple aid such as an S. shaped hook.

50 FT

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i Barbed Tape.

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veloped by the West Germans during the early 1950s as i

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Lsj an improvement to the more vulnerable, single-strand bj q

barbed wire. Barded tape is manufactured in accordance with hiilitary Specification h11L.B-52488 (510) and as-OfAMETER OPEN 4

signed National Stock Number (NSN) 5660-921-5517.

BTC is manufactured in accordance with hiilitary SpeciSca.

4 3 FT ion hi!L C-52489 (510) and is assigned NSN $660 921-5516. Barbed tape can be used for the same applications

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$ y,'io.;: hl'." N d,kd"N N dr'.$1 9

.[in fences with outriggers. However, the method of attach-f,;p% N.4 2.

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ing barbed tape to posts and cutriggers is completely

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.- r t. -fes. -D:W OT. ~ &+7'"- M f different from the method used for barbed wire. Barbed tape is wider and flatter than barbed wire. As a result,it i

g must be affixed with wire ties or clamps. The sime }

f method is used for barbed tape concenina, which is de-1_ - -,

picted in Figure 3-2.

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Figure'31. Barbed Wire Concenina (BWC). Est. Cost:

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50.35/ ft (St.15/m)(FY 79).

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! Barbed wire strands are mounted on outriggers and posts

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posts and outrigger > with soft wire, which is not an effec.

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l of diagenal slots in outriggers which contain the wire

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tise method. hiore common methods of attachment consist

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when pulled taut and standard fabric bands w'ich pinch e

the wire when tightened. An adjustable tension. tightener is sometin es used at terminal posts to remove sag in the l

barbed wire strands. Although barbed wire on outriggers

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presents a psychnlogical deterrent to the casual intruder, It do:s not present determined adversaries from climbing

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I oser the fence. Actually, outriggers u>cd for supponing barbed wire and horizontal top rails aid an adversary by supplying him with a handhold to help in climbing as er a

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Barbed wire concenina (BWC) functions somewhat bet.

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ter than three' strands of barbed wire when installed on outriggers because its coiled configuration does not need

>uppon. BWC does not need 45' outriggers to suppon it Figure 3 2. Barbed Tape Concenina (BTC). Est. Cost:

because it can be attached to chain. link fence fabric with.

50.60'ft (52.00'm) Single Coil, $1.10'ft wire ties." hog rings." or clamps. Although a barbed (53.60'm) Double Coil [FY 79].

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Barbed tape is fabricated from galvanized steel strips

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which are 165 feet in length. The strips are wound on plastic reels and can be easily deployed with a barbed

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tape dispenser. Barbed tape concertina consists of a sin-j gle strand of spring steel wire and a single strand of g

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barbed tape. The barbed tape is securely affixed around o

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the spring steel wire and coiled into spirals. The spirals f

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are ecnnected by steel clips to form a cylindrical, diamond-shaped coil. BTC is usually 50 feet long and approxi-j mately 36 inches in diameter,when it is extended (de-f i

t ployed). In addition to use on the tops of fences. BTC

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can be attached vertically to th'e chain link fabric with.

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wire ties. It can also be installed horizontally on the'

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k fence installation as an enhancement. When used on the k

ground. BTC should be anchored with stakes (metal tent pins) ctery few feet to prevent movement or lifting.

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Barbed tape and BTC have been developed to supercede

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' definite improvements; however, the life expectancy of galvanized barbed tape and BTC may be drastically re-iggW M g mgf - -P qd'ih_,

duced when they are subjge,te{to high humidity or salt spray. In addition, the barbs are too smaltio inflict more than superficial scratches and cuts on an intruder. It is 75M-MQ

^5 possible to crawl through rows of sin;le. coiled BTC with j.' ~"" ~

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little difficulty, but a deployed double coil with a 36. inch outside diameter a~f a 24 inch inside diameter makes l*

crawl-through much more difficult and time consuming.

.A t least one commercial supplier now manufactures stain-Figure 3 3. General Purpose Barbed Tape Obstacle less steel BTC and the cost is slightly more than 52/ft-(GPBTO) Type 11. Est. Cost: 53.10!ft twice as much as galvanized BTC.

(S10.20/m)(FY 79).

General Purpose Barbed Tape Obstacle (GPBTO)

T peI GPBTO 3

Gzneral purpose barbed tape obstacle (GPBTO) was de.

veloped by the U.S. Army Stobility Equipment Research Type I GPBTO is a military version used in establishing and Development Center (US AhtERDC) in Ft. Belvoir.

perimeter barriers in the field. It consists of sesen double-Virginia, to improse most characteristics of antiquated coiled a>>emblies of blackened barbed tape and sesen BWC and BTC. Figure 3 3 shows a typical GPBTO,

polystyrene barbed tape dispensers. Anchors (metal tent section. Emphasis was placed on effectiveness cost.

pins) are supplied for attachment to tiie surface. Because wei;ht. erection simplicity, and emplacement effort.* 5 of its neutral finish. Type I GPBTO reficcts less light The result was a barbed tape with long vicious barbs.

than T,spes 11 or !!! and is idea!!y >uited to military easier deployment, less volume and weight, and easier operations. Since Ty pe I is intended for a quick set.up of recovs r.bility. Initially, the cest was twice that of BWC short duration. as in militaq mosements during ceartime.

and BTC. As of FY 1979. the cost of Type 11 GPBTO it does not has e to be con 3tructed oflong life materials.

(stainless steel) was nearly three times the cost of double-helix BTC (palvanized cteel). GPBTO is manufactured T3pe ll GPBTO in accordance u ith 5filitary Specification 511L B 52775A.

T pe !! GPBTO is a matt.fini h stainlew steel scrsion of There are three types of GPBTO available which are 3

suittble for barrier applications.

Type i GPBTO, w hich forms a double spiral, one spiral l

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inside the other (one with a left. hand lead and the other Conclusions witis a right. hand lead). The coils are free standing due to the use of stainless steel spacer wires. When fully ex.

GPBTO is a vast improvement over barbed wire. Be.

tended, its length is 66 feet and its spiral diameter is sides having a vicious array of barbs, it also takes up less approximately 30 inches. Type !! GPBTO is supplied solume, takes less time to erect, and is more effectise in eith stainless steel wire ties and anchors (metal tent pins).

keeping intruders from climbing or wa' king through pe.

A recovery tool is available to allow the Type 11 GPBTO rimeter fences or barriers. The amount of delay that is ta be reused.

desired at perimeter fences or barriers must be consid.

cred in relation to the complex arrangeme.t and cost of Type !! can be used on or near fences and walls as an cnhrncement or for the constru,ttion of separate barriersj Since Type 11 GPBTO is fabncated from stainless steel.

it is ideally suited for fixed. site installations where cli.

ENHANCED STANDARD FENCES mate or local weather conditions would have little effect on it. Besides being attached as a fence topping, it can Plac ng rolls of barbed tape on or near standard fences als3 be attached either to the inside or outside (on double can moderately enhance their capability to delav intrud.

fince) surface of chain link mesh fabric with stainless ers. Arrangements are limited only by land availability steel wire ties.

and funds for upgrading.

Attaching one roll of barbed tape to the outriggers of an if Type 11 GPBTO is insta!!ed horizontally on.he ground, existing perimeter security fence, as illustrated in Figure it can be staked every 22. feet.with the three anchors 3-4. is probably the most cost. effective addition that can supplied with each roll of barbed tape. Additional an.

be made since an intruder must now bring additional aids chors should be used in windswept areas..at a recom.

'or bulky ~ equipment to climb over the fence # GPBTO mended distance of 5 feet. One problem associated with can be tied to the chain link fabric and the existing barbed GPRTO (and also with BWC and BTC) is trash accumu.

wire by means of stainless steel wire ties. Reversing the lati:n. When paper. weeds, leaves, etc. are caught 'in the outriggers to point from outside to inside whe.. instal!ing barbed tape. a method should be devised to remove the BTC or GPBTO as a fence topping eliminates the hand.

trash, if for no other than esthetic reasons. In addition, grip'~used by outsiders in climb.osers. Also, if.the top grass and weeds can intertwine themselves in the barbed rail on a GPBTO or BTC. topped fence is eliminated. the tcpe, thereby reducing its delay effectiveness. This con.

fence fabric becomes loose and flexible and consequently dition can be remedied by the use of a soil sterilant or is much harder to climb. However, if vibration. type sen.

pavement.' Costs for steritants range from 50.10 a square sors are used on a fence, the top rail should be retained yard for a chemical penetration treatment to 56 a square since it limits excessive fence fabric mosement, a cause yard fer 2. inch. thick Gunite on lesel surface. Life expec.

ofineressed false alarms during windy weather, tancies for such treatments range from 2 to 20 years. A defoliant agent. if acceptable, can also be used to kill I

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3[hi.i existing growth and prevent future growth.

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T pe!!!GPBTO 3

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Type !!! GPBT is a single 18 inch. diameter coil of *

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>tainless steel barbed tape which is used primarily as a y ; y l'~

. W.i;".-" "r, M, f, fence or wa!! topping around fiacd sites. Each Type ill g<..*T 9 oa Nk;;. : r J. e "...M L ' o f'.. El'J V 3

f~~.*".*[p~~[Z.2.@).w coiled assembly come> with stainless steel wire ties for

~.t~'% i attachment to chain. link fences or walls. Besides being

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attached directly to the top of the chain. link fabrie, Type

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!!! GPBTO can also be supported and tied to a single

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wire (12.guuge) strung on outriggers facing toward the

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inside of the fence. This method space > the barbed tape

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evenly, prevents movement of the barbed tape, and sup.

ports the barbed tape fmm un inaccessible location. When Figure 3 4. Altemate Secarity Fence with Sin;le Roll the outriggers face toward the inside, the solid handhold 30 21 GPBTO. Upgrade Cost. S5 ft(516 no that can b,: used by outsiders for climb.os ers is climinated.

[FY 79].

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'o Other enhancernent possibilities are the placement of harbed tape either horizontally on the ground or against D

f' the chain. link fabric. Figures 3 5 and 3 6 show these insta!!ations. When the rolls are placed vertically, the bottom row should be staked to the ground with anchors y

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(metal tent pins). The barbed tapes can be placed on i

cither side of the chain. link fabric. Usually the barbed

.{g tapes are placed on the inside of an outside perimeter fence and on the outside of an inner (double) fence (Fig.

ure 3 7). This prevents accidental injury to the casual passerby. both outside and inside a site or facility. When rolls of barbed tape are p[ aced horizontally, they,are j p,

staked to the ground. Care must be taken to prevent

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excessive plant growth, and methods should be devised f:r rernoval of windblown trash. Even when perimeter

.I, fences are enhanced with numerous rolls of BTC or h0 D

GPBTO, climb-overs, crawl.unders, and cut throughs are r,'r possible with simple breaching aids, as indicated in the hf section. " Penetration Methods and Tools."

Figure 3 6. Standard Fence with Five Rolls 30/24 GPBTO. Up-grade Cost: $30/ft (59S!m) [FY

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t Figure 3 5. Alternate Security Fence with Four Rolls Figure 3 7. Standard Double Fence with Eight Rolls 30'24 GPBTO. Upgrade Cost: $20'ft (566'm) 10'24 GP BTO. Upgrade Cost: 550'ft (5164/m)

[FY 79).

[FY 79].

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