For the purposes of this section, a cable is defined as any fibre optic or copper material housed within a protective sheath for the purposes of transmitting data or control signals from one point in a facility to another. Stanley Kaufman, Ph.D. is principal of CableSafe Inc. and a consultant to the Communications Cable and Connectivity Association (CCCA). RepresentativesBlulen, CISCO Systems, Comtest Laboratories, Department of Defence, Foxtel, Free TV Australia, IBM, Market Access, nbn, Optus, Telstra, TPG Telecom, Trillium Technology, Vocus, VTI Services. Defence Audio Visual Environment (DAVE) standard Patterns are available and strongly encouraged for AV functional and passive ICT design. Utilize tools and accessories that make indoor and outdoor installations and maintenance quick and easy. This was obviously written with power cables in mind. 7986 0 obj <>stream Control: ISM-1820; Revision: 0; Updated: Mar-23; Applicability: All; Essential Eight: N/ACables for individual systems use a consistent colour. In certain circumstances it may not be possible to use the correct colour for SECRET or TOP SECRET cables. Control: ISM-1122; Revision: 2; Updated: Dec-21; Applicability: TS; Essential Eight: N/AWhere wall penetrations exit a TOP SECRET area into a lower classified area, TOP SECRET cables are encased in conduit with all gaps between the TOP SECRET conduit and the wall filled with an appropriate sealing compound. The most important and most obvious change is that Chapter 8 has a new general article. This standard, which is dedicated to coaxial connectors, provides requirements and test methods for them when used with flexible and semi-rigid cables. HWOSi6IvdfMvgtl66# Rapidly scale fiber capacity for your enterprise, MTDC, service provider or hyperscale data center. Class 2 and Class 3 circuit conductors shall be permitted in the same cable with communications circuits, in which case the Class 2 and Class 3 circuits shall be classified as communications circuits and shall meet the requirements of this article. Communications, Information Technology and e-Commerce Services. 2: An example of a label is 52V @ 0.433A, 56V MAX for an IEEE 802.3 compliant Class 8 power source.. The cables shall be listed as communications cables., (b) Class 2 and Class 3 Circuits. That is, while standards are essential, it was inevitable that they would grow like weeds until they became so unmanageable that it turned into enormous burden to anyone who had the temerity to use them. In addition, if a company is in direct competition for the award with a company whose same type of product is QPL-listed, the former is more likely to get the nod. The Institute of Electrical and Electronics Engineers (IEEE) is a global organization that seeks to advance innovation and technological excellence. Local area network (LAN) cables are now nearly universally used for PoE applications. Types of Wire or Cable in the Military/Defense Industry. 3. . There are new marking requirements in Section 725.121(C) of the 2020 NEC for power supplies that are used to supply power to cables that simultaneously transmit power and signal/communicate. 2020 NEC Section 805.179(D) has new provisions that recognize the listing of communications Limited Power (LP) cables for these applications. Where multiple connection points have the same rating, a single label shall be permitted to be used. Fortunately, the DoDs Qualified Manufacturers List (QML) and Qualified Product List (QPL) serve this purpose and represent the gold standard for selecting acceptable products. In the 2020 NEC, Informational Notes were added to Sections 725.24 and 760.24. The ability to inspect cabling infrastructure is necessary to detect illicit tampering or degradation. Issue 37 - Q4 2022Issue 36 - Q3 2022Issue 35 - Q2 2022Issue 34 - Q1 2022, Issue 33 - Q4 2021Issue 32 - Q3 2021Issue 31 - Q2 2021Issue 30 - Q1 2021, Issue 29 - Q4 2020Issue 28 - Q3 2020Issue 27 - Q2 2020Issue 26 - Q1 2020. Fibre-optic cables do not produce, nor are influenced by, electromagnetic emanations; thereby offering the highest degree of protection from electromagnetic emanation effects. S |-!AsVyY9l"aZg/;G`y_2J(nUV1%p(I~yypB"p4@1 Class 2 and Class 3 circuit conductors shall be permitted in the same cable with communications circuits, in which case the Class 2 and Class 3 circuits shall be classified as communications circuits and shall be installed in accordance with the requirements of Article 800. Control: ISM-0213; Revision: 4; Updated: Mar-23; Applicability: S, TS; Essential Eight: N/ASECRET and TOP SECRET cables are terminated on their own individual patch panels. In the 2017 NEC, Section 840.160 permits communications cables to carry circuits for powering communications equipment in addition to the communications signal, provided that the power supplied doesnt exceed 60 watts. Fixed sites outside Australia, and deployed military platforms, are more vulnerable to emanation security threats. the Defence Terrestrial Communications Network (DTCN). 1 - Industry 4.0, A.I., SPE, 5G edge discussion, Legrand, Superior Essex unveil commercial 'Hi-PoE' cabling system at BICSI Winter, Communications Cable and Connectivity Association. Control: ISM-1646; Revision: 0; Updated: Jun-21; Applicability: All; Essential Eight: N/AFloor plan diagrams contain the following: Well documented cable labelling processes and procedures can make cable verification and fault finding easier. Optical fiber cables, Type OFNP, OFCP, OFNR, OFCR, OFNG, OFCG, OFN and OFC, Communications cables, Types CMP, CMR, CMG and CM, Coaxial cable TV cables, Types CATVP, CATVR and CATV, Class 2 cables, Types CL2P, CL2R and CL2, Class 3 cables, Types CL3P, CL3R and CL3, Power-limited fire alarm cables, Types FPLP, FPLR and FPL. Deliver optimal high-speed performance with a variety of cable assemblies, including coaxial, fiber and hybrid options. The new text states, No wire or cable shall be used in such a manner that its operating temperature exceeds that of its rating. Section 800.3(H) of the 2017 NEC has been deleted; it referred to Section 310.15(A)(3), which is considerably more complicated. The use of designated wall outlet box colours can provide an easy way to distinguish wall outlet boxes for SECRET and TOP SECRET systems from wall outlet boxes for other systems. The first option is to comply with the ampacity table, Table 725.144. N _rels/.rels ( j0@QN/c[ILj]aGzsFu]U ^[x 1xpf#I)Y*Di")c$qU~31jH[{=E~ Indeed, over the past few years, more than 30 of our team members with standards expertise attended a cumulative 60 different cabling, infrastructure, components and applications standards projects around the world, ensuring that our network solutions work seamlessly when supporting new applications. There is an exception for communications, Class 2, Class 3 and power-limited fire alarm cables operating at less than 50 volts. Among the changes from the 2017 edition, a new general article in Chapter 8 consolidates redundant requirements. Code Organization, Section 90.3 permits Chapters 5 through 7 to supplement or modify the requirements of Chapters 1 through 7; consequently, the requirements of 725.3(P) and 760.3(O) override the requirements of Section 250.119. Sleeves and openings for communications cabling shall be coordinated with the other consultants to determine the location, clearances from other trades, structural concerns, etc . The Electronic Components Industry Association (ECIA) committee CE-2.2 is currently in the process of revising specifications for 50- and 75- rigid coaxial transmission lines and connectors per EIA-RS-225A and EIA-RS-259A. In order to alert users to this issue, the 2017 NEC added Informational Notes to Articles 770 (optical fiber cables), 800 (communications cables) and 820 (CATV coaxial cables). Build a converged, AI-enabled enterprise wired and wireless network and manage it from any cloud or appliance. Voice/data Cabling Services - Brea, California Fintech Communications' professional IT consultants take care of your VOIP consultants needs. *b"O m"gf&~s~J(J(J(J(J(N^'71bZE[6 ?DV OlcQ! At CommScope, your imagination can reimagine tomorrow. The InterNational Committee for Information Technology Standards (INCITS) develops standards governing the security, storage, transfer and management of information. In the 2017 NEC, Section 725.121(C), which covers marking requirements for limited power circuits, requires a label indicating the maximum voltage and current output for each connection point. Control: ISM-1821; Revision: 0; Updated: Mar-23; Applicability: TS; Essential Eight: N/ATOP SECRET cables, when bundled together or run in conduit, are run exclusively in their own individual cable bundle or conduit. Controlling the routing from cable reticulation systems to cabinets can assist in preventing unauthorised modifications and tampering while also providing easy inspection of cables. Control: ISM-1112; Revision: 3; Updated: Dec-21; Applicability: All; Essential Eight: N/ACables are inspectable at a minimum of five-metre intervals. The target in the future will be attempting to ruggedize these connectors for defense applications, which are obviously far more demanding than relatively benign benchtop environments. S@=k)zzhL=*wJ7-/ The defence Estate Quality Management System (http://www.defence.gov.au/im/) contains further requirements including the principles of development, zone planning, site selection, engineering requirements and environmental impact assessment and approval requirements. STATE OF WISCONSIN. The requirement that the Class 2 and Class 3 circuits be classified as communications circuits conflicts with the requirement in Section 840.160 that communications circuits above 60 watts be installed in accordance with Section 725.144. '!G)QD \, t@E@m*La}D{#MCpI IfS]>,oq0@Xzi_$KpK`WEpY?Kv[ 6'$hm`--0kFMU4|N9m+>$4=R~QUF{O>(7pq10F S #. Making sure your network keeps pace with evolving technologies requires a strategic investment. Examples of appropriate cable bands include stick-on coloured labels, colour heat shrink, coloured ferrules or short lengths of banded conduit. This article appeared in Microwaves & RF and has been published here with permission. In doing so, it is important that cable bands are robust enough to stand the test of time. In doing so, cable registers should track all cabling changes throughout the life of a system. Further information on the ACSCs Emanation Security Program, including a list of certified emanation security providers, is available from the ACSC. In such cases, an organisation should band such cables with the appropriate colour and ensure that the cable bands are easily visible at inspection points. Information Note No. The European Committee for Electrotechnical Standardization (CENELEC) develops European standards for electrical engineering. Control: ISM-1640; Revision: 0; Updated: Mar-21; Applicability: All; Essential Eight: N/ACables for foreign systems installed in Australian facilities are labelled at inspection points. The cables shall be listed as communications cables., (b) Class 2 and Class 3 Circuits. Control: ISM-1137; Revision: 3; Updated: Dec-21; Applicability: S, TS; Essential Eight: N/ASystem owners deploying SECRET or TOP SECRET systems in shared facilities contact the ACSC for an emanation security threat assessment and implement any additional installation criteria derived from the threat assessment. [c`+g`4uO{qc9e2Nd Xg R lS8yvESZX!j~ f The TIA standard defines the parameters for each part of the cabling system, which includes work area wiring, horizontal wiring, telecommunication closets, equipment rooms and, cross-connects, backbone (vertical) wiring, and entrance facilities. Defense Communications System synonyms, Defense Communications System pronunciation, Defense Communications System translation, English dictionary definition of Defense Communications System. CCCA makes no warranty regarding the accuracy of the information provided in this paper, and expressly disclaims any implied warranties and any liability for use of the paper or reliance on views expressed in it. endstream endobj 7954 0 obj <>stream For example, while SECRET and TOP SECRET cables have designated cable colours, cables for other systems may be any colour except for those reserved for SECRET and TOP SECRET systems. We pay our respect to their elders past and present and extend that respect to all Aboriginal and Torres Strait Islander peoples today. Control: ISM-1123; Revision: 3; Updated: Dec-21; Applicability: TS; Essential Eight: N/AA power distribution board with a feed from an Uninterruptible Power Supply is used to power all TOP SECRET ICT equipment. Audio secure rooms are designed to prevent audio conversations from being overheard. 203 0 obj <>stream 3). In the 2020 NEC, the new Section 725.3(P) for Class 2 and Class 3 cables, and new Section 760.3(O) for power-limited fire alarm cables, permit green wires to be used ungrounded without the voltage limitations in Section 250.119. Led by the United States and France in the late 18th and 19th Centuries, countries began to realize the benefits of having standards that defined the components, subsystems and systems used in their military equipment. It is important that TOP SECRET systems have control over the power system to prevent denial of service by deliberate or accidental means. When completed, its hoped that the result will serve as a useful guide for the selection and use of RF/microwave connectors and cables. It is not offered, intended, nor should it be relied upon as legal advice. Above 60 watts, Section 840.160 defers to the requirements in Section 725.144 of Article 725, Class 1, Class 2, and Class 3 Remote-Control, Signaling, and Power-Limited Circuits. Control: ISM-1645; Revision: 2; Updated: Dec-22; Applicability: All; Essential Eight: N/AFloor plan diagrams are developed, implemented, maintained and verified on a regular basis. It does not apply to cabling products intended primarily for the distribution of AC mains supply. Because MIL-DTL-17 cables are used in applications other than defense systems, they often include requirements contained in commercial standards such as those employed for use in designing automotive systems. Although this standard is designated for coaxial cables used in airborne platforms, it can also be an alternative to MIL-DTL-17, especially for higher frequencies. Since the 1960s, the IEEEs P287 Standard for Precision Coaxial Connectors (DC-110 GHz) has been focused on the goal of creating standards for these components, and their efforts, along with those of the microwave and test-and-measurement industry, have delivered impressive results. hbbd``b`Z D|)1@}H6D ) Hlc`bRHko 5 In short, its always a gamble. The National Electrical Code (NEC) is published by the National Fire Protection Association (NFPA) with the revisions on a three-year schedule. Although widely used in the industry, the term data/comm cables does not appear in the NEC. Other advances included a stress-crack resistance test on FEP (fluorinated ethylene propylene) and PFA (perfluoroalkoxy) jacketed cables, and the use of Type II PVC (polyvinyl chloride) for jackets, replacing the earlier specification for Type 1. As a global leader developing enterprise network solutions, we actively participate in each of our industry's major standards organizations. Tell us why this information was helpful and well work on making more pages like it, Practical steps to keep yourself and your family secure, How to protect your business and staff from common cyber threats, Understand how to protect your organisation from cyber threats, Strategies to protect your organisation from cyber threats, Interactive tools and advice to boost your online safety, Authorised by the Australian Government, Canberra, Australian Government - Australian cyber security centre, Getting your business back up and running, Strategies to Mitigate Cyber Security Incidents, Gateway and Cross Domain Solution guidance. For example, flexible cables are specified for places where bending is required, such as in long lengths of cable. Control: ISM-0211; Revision: 7; Updated: Dec-22; Applicability: All; Essential Eight: N/AA cable register is developed, implemented, maintained and verified on a regular basis. %%EOF Expand your network footprint and performance with flexible FTTX approaches. The way end users make purchasing decisions is altered by n, The first ride of the team @thoemusmaxon on Brazilian soil to get used to the climate. Command, Control, Communications, Computing and Intelligence (C4I), all Radar & Radio airfield navigation & information systems and all Communications-Electronics (C-E) equipment, peripherals and cabling, its location, infrastructure, environment and Radio Site Restriction zones. Find prompt, expert support from a CommScope professional, Insights from CommScopes leading minds on connectivity today and tomorrow, Base Station Antennas & Equipment (Macro), Rectangular & Flexible-Twistable Waveguides, Distributed Access Architecture (DAA) Devices, IP Switches for Distributed Access Architectures (DAA), Filter & Tower Mounted Amplifier (TMA) Products, Video Processing, Security & Delivery Systems, Cable Modem Termination Systems (CMTS) & Converged Cable Access Platforms (CCAP), IP Switches for Distributed Access Architectures, Optical Hubs, Nodes, RF Amplifiers & RF Passives, Central Office/HeadendFiber Optic Connectivity, Combiners, Interference Mitigation Filters & Tower Mounted Amplifiers, Hybrid Fiber & Power Cable Jumpers (HELIAX), Fiber Junction Box Enclosures & Panels (HELIAX), Optical Distribution Frames (ODF) Cable Management, Fiber Entrance CabinetFloor Mount Frames, Broadband network cabling and connectivity, RDOF & Infrastructure Investment and Jobs Act, Utility Grade Infrastructure Solutions (UTG), The Enterprise Source - Explore information about the now and next of connectivity infrastructure >>, CommScope Infrastructure & Wireless Partners, Access Network Solutions Partners (formerly ARRIS), CommScope Infrastructure, Wireless & Wireline Partners, Enterprise Networking | RUCKUS Partner Locator, Access Network Solutions (formerly ARRIS), Corporate Responsibility and Sustainability, Open technology, deploying effectively across multiple systems, Ease of use and reduced maintenance costs. Page 2 of 32 TasNetworks Standard - Communications and Data Cabling Standard Authorisations Action Name and title Date Prepared by John Gangemi Senior Asset Strategy Engineer, Secondary Systems, Asset Strategy 4171 0 obj <> endobj Control: ISM-1111; Revision: 3; Updated: Mar-21; Applicability: All; Essential Eight: N/AFibre-optic cables are used for cabling infrastructure instead of copper cables. Peter McNeil is a marketing manager at Pasternack. 0 G Revised 11/07/16 . This is especially true of plenum cables, which are designed to have excellent fire-resistance properties. When cable reticulation systems are used for more than one cable bundle or conduit, it is important that there is a dividing partition or visible gap between cable bundles and conduits to facilitate easier cable inspection. Further information on audio secure rooms can be found in the Attorney-Generals Departments Protective Security Policy Framework, Physical security for entity resources policy. Coherent optical link achieves 200-Gbps single wavelength transmission in time for OFC, Pharma manufacturer Divis Labs taps Juniper for automated network infrastructure, Top 10 cleanest ICT cabling installs: Photos. Owing to the increasing outrage from military contractors and the sheer impossibility of maintaining them, Defense Secretary William J. Perry wrote in 1994 what has become known as the Perry memo. The memo effectively prohibited the use of most standards without a waiver and directed contractors to use suitable commercial off-the-shelf (COTS) products whenever possible in their place. Its important to note that while the standards described above are likely to be encountered by designers, theyre not the only ones, as the primary standards refer to many others (such as MIL-STD-202). Deliver high-quality video services over HFC and cable networks. Build a reliable building connectivity foundation with copper and fiber structured cabling and automated management. Using data/comm cables for providing power in addition to communicating/signaling has been a hot topic in the data/comm industry. 2 w Definitions used in multiple articles (other than just Chapter 8) have been moved to the definitions section in Chapter 1. Nor was there any requirement for adhesion of the dielectric core to the center conductor, with the result that it was possible to pull the center conductor out of the assembly when stripping it. Not surprisingly, there are even standards defining how standards must be formatted and how their content must be presented. By World War II, virtually every country with even a modest military force had adopted them. Control: ISM-0206; Revision: 7; Updated: Dec-22; Applicability: All; Essential Eight: N/ACable labelling processes, and supporting cable labelling procedures, are developed, implemented and maintained. Evolve your existing infrastructure to a hybrid-fiber coaxial access network that meets your performance, time-to-market and cost requirements. Labels for TOP SECRET conduits should be of sufficient size and colour to allow for easy identification. HbNQ! Meet technical and functional requirements while taking care of aesthetics at the front of your copper and fiber networks. DIVISION OF FACILITIES DEVELOPMENT. 190 0 obj <>/Filter/FlateDecode/ID[<67460E567C4E2643BAC2C255874CA958>]/Index[170 34]/Info 169 0 R/Length 95/Prev 165117/Root 171 0 R/Size 204/Type/XRef/W[1 2 1]>>stream We excel in supplying air, land, naval and joint forces with an unrivalled depth of capability in the following five areas: Communications, command and control systems. The Defence Cabling Standard Revision Working Committee is to revise AS/CA S035:2015 Requirements for installation of temporary field telecommunications customer cabling for defence purposes Australian Standard, to: The result is that, when you partner with CommScope, you're partnering with a company that helps position your network for long-term success, with solutions that feature: Our quarterly updates on the standards relevant to the structured cabling industry, and the impact they have on your network design, planning and operations. Moreover, theyre potentially bumping up against the limits of the fabrication technologies employed to make them. An enormous number of DoD standards remain in place. Cabling infrastructure standards Cabling infrastructure should be installed by an endorsed cable installer to the relevant Australian Standards to ensure personnel safety and system availability. In fact, DoDs federal acquisitions policy document notes that if a company can demonstrate to the satisfaction of the contracting officer that its product meets QPL standards before the date specified for the award of a contract, it cant be denied the opportunity to submit a proposal solely because the companys product isnt on the QPL. a data center. But new challenges lay ahead, one of the most important being the DoDs increasing focus on higher frequencies due in part to the new threats from adversaries in spectral regions at or above 100 GHz. These new marking requirements facilitate matching the ampacities of the cables with the output current of the power supply. Ideally, wall outlet boxes should be the same colour that is used for associated cabling. Cablers must now comply with the 2020 Wiring Rules. The 2017 NEC was the first edition of the NEC to address this issue, which includes, but is not limited to, Power over Ethernet (PoE). The key is how to decipher them. It details specifications for flexible and semi-rigid coaxial cables with solid and semisolid dielectric cores as well as single, dual, twin and triaxial conductors. TIA-568-D.3 addresses components of fiber optic cable systems, and. In addition, wall outlet box colours for other systems, such as OFFICIAL and PROTECTED systems, may use the same colour, such as blue. TIA-568-D.2 focuses on components of balanced twisted-pair cable systems. Applications include: Available unscreened (Type A), with a braid screen (Type C), with an individual braid screen (Type D) or foil screen (Type S), from 2 core to 36 core in a range of conductor sizes. Control: ISM-0248; Revision: 6; Updated: Dec-21; Applicability: O, P; Essential Eight: N/ASystem owners deploying OFFICIAL or PROTECTED systems with Radio Frequency transmitters that will be co-located with SECRET or TOP SECRET systems contact the ACSC for an emanation security threat assessment and implement any additional installation criteria derived from the threat assessment. Disability Discrimination Administering Agency Attorney-General's Department Arcadian Infracom and the California Department of Technology are now collaborating for a new middle-mile fiber network deployment. The cables shall be listed as communications cables.. Control: ISM-1100; Revision: 1; Updated: Sep-18; Applicability: TS; Essential Eight: N/ATOP SECRET cables are terminated in an individual TOP SECRET cabinet. $0.50-$1.50 / meter. hbbd``b`U@(`a-0`*AHk3 z k:0 -HN7,Ad R ? %PDF-1.6 % Semi-flexible cables arent to be used in places where repeated bending or flexing occurs or in shock-mounted equipment. z, /|f\Z?6!Y_o]A PK ! 1). 2023 Endeavor Business Media, LLC. Painting or coating of plenum cables might compromise their fire-safety properties. In addition, TOP SECRET conduits should be sealed with a visible smear of conduit glue to prevent access. Operational efficiency to ensure highest levels of defence. f?3-]T2j),l0/%b In doing so, floor plan diagrams should track all cabling infrastructure changes throughout the life of a system. In shared facilities, clear covers on enclosed cable reticulation systems are a convenient method of maintaining inspection requirements. Change a. Unclassified WLAN systems must be standards-based and IEEE 802.11 compliant in accordance with Paragraph 3.1.a. Terminating SECRET and TOP SECRET cables on different patch panels in cabinets can assist in preventing accidental or deliberate cross-patching and makes inspection of cables easier. maxo, 5 for Friday: A Look Into the Future for Design, Plant Investments and Pneumatics, A Primer on Valves Used in Chromatography and Spectrometry Analysis, DC UPS System, Enclosure and Switches Join Together, Universal Robots Demos Three Versatile Robotic Applications, Why Machine Safety Is Not Complete Without Validation, DATA CABLE SOLUTIONS FOR THE FLOURISHING SMART FACTORY. Provide flexibility, scalability and functionality as you expand your networks and roll out new technologies. GYTS Aerial 12 24 36 48 Core GYTS Fiber Optic Cable Communication Cable. 6. The other option is to use Limited Power (-LP) cables and to keep the current in each conductor below the ampere limit marked on the cable. The Defence Estate Quality Management System ( http://www.defence.gov.au/estatemanagement/governance/policy/principlesdevelopment/default.asp) contains further requirements including the principles of development, zone planning, site selection, engineering requirements and environmental impact assessment and approval requirements. Control: ISM-1095; Revision: 5; Updated: Dec-21; Applicability: All; Essential Eight: N/AWall outlet boxes denote the systems, cable identifiers and wall outlet box identifier. Facility must be under full defence control for Active ICT to be installed. Communications Cabling - Standards Australia. Join our dynamic team of talented innovators as we redefine connectivity across the globe. Where active fire suppression is present, all cable types, except limited-use (CMX and CATVX), are permitted under the raised floor. "z _/M1/W#Dcy ^QzlYtQdC>U,OSoJVJges^HAt33RCYc;IWOwLn e `.CZ XcY8S+&~U5?q9uDX~(wY ^>&]+Dk{5X"P)e_=0 YCPIh#G*jA3-59H]kG{YR D]\l5r5>2: RlsFeQx8e&Ez~Z:>{j!rvQ*5iUPI In the 2020 NEC, the ampacity table in Section 725.144, which is based on an Underwriters Laboratories fact-finding study, has been modified to use true rounding instead of rounding down. 7949 0 obj <> endobj %%]N~FN!pG71PcU>Uw5}B%!ouo+7|7+W[D9%Qe In shared facilities, TOP SECRET cables are not run in party walls. In some instances this results in slightly higher ampacities being permitted. It was, in fact, eliminated without replacement in 2001, but was subsequently resurrected after a 2016 study determined that such a massive task would be worth the effort. In fact, the DoD has the most comprehensive requirements of any government agency in the world, and technological advances, market demands and the emergence of new applications make it essential that these standards be revised, although it typically takes several years to release revisions to a standard.
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