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22、SB-185 Environmental Classification (MICE) Tutorial Table of Contents FOREWORD II 1 SCOPE1 2 REFERENCES1 3 DEFINITION OF TERMS, ACRONYMS AND ABBREVIATIONS, AND UNITS OF MEASURE2 3.1 General 2 3.2 Definitions 2 3.3 Acronyms and abbreviations2 3.4 Units of measure3 4 ENVIRONMENTAL CLASSIFICATION.3 5 E
23、NVIRONMENTAL ELEMENTS.5 5.1 Mechanical (M).5 5.2 Ingress (I).6 5.3 Climatic/chemical .6 5.3.1 Climatic (C) 6 5.3.2 Chemical (C) 7 5.4 Electromagnetic (E) .10 5.4.1 Guidance with respect to the electromagnetic element 10 ANNEX A (INFORMATIVE) BIBLIOGRAPHY14 List of Tables Table 1 Reference for specif
24、ic parameter boundaries for the mechanical element5 Table 2 References for specific parameter boundaries for the ingress element.6 Table 3 References for specific parameter boundaries for the climatic element 7 Table 4 References for specific parameter boundaries for the chemical element 7 Table 5 C
25、ommon chemicals used by industry/application 9 Table 6 References for specific parameter boundaries for the electromagnetic element.10 Table 7 Guidance for the classification of electromagnetic element.11 Table 8 Coupling mechanisms for common noise sources.12 List of Figures Figure 1 Relationship o
26、f environmental classification to elements, severity and parameters.4 Figure 2 Examples of variation of the environment along a cabling channel4 Figure 3 An example of the local environment5 Figure 4 Noise ranges of common industrial machine devices.10 Figure 5 Illustration of an example of separati
27、ng EMC zones within a pathway.12 Figure 6 Illustration of a separation and isolation example. This image is for illustration purposes only and does not constitute an endorsement of the depicted products.13 i TIA TSB-185 FOREWORD This TSB was developed by TIA Subcommittee TR-42.1 using source content
28、 provided by TIA Subcommittee TR-42.9. Introduction Telecommunications cabling is installed in a variety of environments. For example, the cable may be installed in a commercial office building ceiling where the environment has a near-constant surrounding temperature and is minimally influenced by o
29、ther sources (e.g., electromagnetic). On the other hand, telecommunications cabling may be installed in spaces where the environment can have an effect on the performance of the cabling (e.g., spaces with equipment for cutting and welding that create a severe electromagnetic environment). These envi
30、ronments, though they may be localized along a cabling channel, are characterized by the “MICE” (M - mechanical; I - ingress; C - climatic/chemical; and, E - electromagnetic) classification system. This TSB serves to document the reference documents and standards for the MICE classifications and par
31、ameters. Stewardship Telecommunications infrastructure affects raw material consumption. The infrastructure design and installation methods also influence product life and sustainability of electronic equipment life cycling. These aspects of telecommunications infrastructure impact our environment.
32、Since building life cycles are typically planned for decades, technological electronic equipment upgrades are necessary. The telecommunications infrastructure design and installation process magnifies the need for sustainable infrastructures with respect to building life, electronic equipment life c
33、ycling and considerations of effects on environmental waste. Telecommunications designers are encouraged to research local building practices for a sustainable environment and conservation of fossil fuels as part of the design process. ii TIA TSB-185 1 SCOPE This TSB provides information on the MICE
34、 (Mechanical; Ingress; Climatic/Chemical; and, Electromagnetic) environmental classification system including some examples. 2 REFERENCES The following standards contain provisions that are referenced in this TSB. At the time of publication, the editions indicated were valid. All standards are subje
35、ct to revision, and parties are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. ANSI and TIA maintain registers of currently valid national standards published by them. a) ANSI/TIA-568-C.0-2009, Generic Telecommunications Cabling For C
36、ustomer Premises b) IEC 60068-2-5:1975, Environmental Testing - Part 2: Test, Sa: Simulated Solar Radiation At Ground Level c) IEC 60068-2-30:2005, Environmental Testing - Part 2-30: Tests - Test Db: Damp Heat, Cyclic (12 h + 12 h Cycle) d) IEC 60529:2007, Degrees Of Protection Provided By Enclosure
37、s (IP Code) e) IEC 60654-1 Ed. 2.0:1993, Industrial-Process Measurement and Control Equipment - Operating Conditions - Part 1: Climatic Conditions f) IEC 60654-4:1987, Operating Conditions For Industrial-Process Measurement And Control Equipment Part 4: Corrosive And Erosive Influences g) IEC60664-1
38、:2007, Insulation Coordination For Equipment Within Low-Voltage Systems Part 1: Principles, Requirements And Tests h) IEC 60721-1:2002, Classification Of Environmental Conditions - Part 1: Environmental Parameters And Their Severities i) IEC 60721-3-3:1994, Classification Of Environmental Conditions
39、 - Part 3-3: Classification Of Groups Of Environmental Parameters And Their Severities - Stationary Use At Weatherprotected Locations j) IEC 61000-2-5:1995, Electromagnetic Compatability - Part 2: Environment - Section 5: Classification Of Electromagnetic Environments - Basic EMC Publication k) IEC
40、61000-6-1:2005, Electromagnetic Compatibility (EMC) - Part 6-1: Generic Standards - Immunity For Residential, Commercial And Light-Industrial Environments l) IEC 61000-6-2:2005, Electromagnetic Compatibility (EMC) - Part 6-2: Generic Standards - Immunity For Industrial Environments m) IEC 61131-2:20
41、07, Programmable Controllers - Part 2: Equipment Requirements And Tests n) IEC 61326:2008, Electrical Equipment For Measurement, Control and Laboratory Use - EMC Requirements o) IEC 61935-2:2005, Generic Cabling Systems - Specification For The Testing Of Balanced Communication Cabling In Accordance
42、With ISO/IEC 11801 - Part 2: Patch Cords And Work Area Cords p) IEC 61935-2-20:2008, Testing Of Balanced Communication Cabling In Accordance With ISO/IEC 11801 - Part 2-20: Patch Cords And Work Area Cords Blank Detail Specification For Class D Applications q) ISO/IEC 11801:2002, Information Technolo
43、gy - Generic Cabling For Customer Premises, 2ndEdition 1 TIA TSB-185 3 DEFINITION OF TERMS, ACRONYMS AND ABBREVIATIONS, AND UNITS OF MEASURE 3.1 General For the purposes of this TSB, the following definitions, acronyms, abbreviations and units of measure apply. 3.2 Definitions automation island area
44、: An area containing machines, processes and supporting cabling for industrial control and process monitoring. cable: An assembly of one or more insulated conductors or optical fibers, within an enveloping sheath. cabling: A combination of all cables, jumpers, cords, and connecting hardware. channel
45、: The end-to-end transmission path between two points at which application-specific equipment is connected. electromagnetic compatibility: The ability of electronic systems to operate in their intended electromagnetic environment without suffering performance degradation and without causing performa
46、nce degradation in other equipment. equipment outlet: Outermost connection facility in a hierarchical star topology. telecommunications: Any transmission, emission, or reception of signs, signals, writings, images, and sounds, that is, information of any nature by cable, radio, optical, or other ele
47、ctromagnetic systems. telecommunications room: An enclosed architectural space designed to contain telecommunications equipment, cable terminations, or cross-connect cabling. 3.3 Acronyms and abbreviations ANSI American National Standards Institute AM amplitude modulation C carbon Cl2chlorine CO car
48、bon monoxide EFT electrical fast transient EFT/B electrical fast transient/burst EMC electromagnetic compatibility ESD electrostatic discharge H2hydrogen H2CO formaldehyde H2S hydrogen sulfide HCN hydrogen cyanide HF hydrogen fluoride HP horsepower IEC International Electrotechnical Commission IR in
49、frared ISO International Organization for Standardization MICE mechanical, ingress, climatic/chemical, electromagnetic NaCl sodium chloride NH3ammonia 2 TIA TSB-185 NOxnitrogen oxides RF radio frequency R-SH thiol acids S sulfur SO2sulfur dioxide SO3sulfur trioxideTIA Telecommunications Industry Association TSB Telecommunications System Bulletin TV television UV ultraviolet 3.4 Units of measure cm centimeter GHz gigahertz Hz hertz kHz kilohertz km kilometer m meter mg milligram MHz megahertz MW megawatt C microcoulomb V volt W watt 4 ENVIRONMENTAL CLASSI
