1、 ETSI TR 101 576 V1.1.1 (2011-12) Environmental Engineering (EE); Recommendation for the applicability of environmental classes in outdoor cabinet environment Technical Report ETSI ETSI TR 101 576 V1.1.1 (2011-12) 2Reference DTR/EE-00006 Keywords acoustic, emission, environment, noise ETSI 650 Route
2、 des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16 Siret N 348 623 562 00017 - NAF 742 C Association but non lucratif enregistre la Sous-Prfecture de Grasse (06) N 7803/88 Important notice Individual copies of the present document can be downloaded f
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5、e at http:/portal.etsi.org/tb/status/status.asp If you find errors in the present document, please send your comment to one of the following services: http:/portal.etsi.org/chaircor/ETSI_support.asp Copyright Notification No part may be reproduced except as authorized by written permission. The copy
6、right and the foregoing restriction extend to reproduction in all media. European Telecommunications Standards Institute 2011. All rights reserved. DECTTM, PLUGTESTSTM, UMTSTMand the ETSI logo are Trade Marks of ETSI registered for the benefit of its Members. 3GPPTM and LTE are Trade Marks of ETSI r
7、egistered for the benefit of its Members and of the 3GPP Organizational Partners. GSM and the GSM logo are Trade Marks registered and owned by the GSM Association. ETSI ETSI TR 101 576 V1.1.1 (2011-12) 3Contents Intellectual Property Rights 4g3Foreword . 4g3Introduction 4g31 Scope 5g32 References 5g
8、32.1 Normative references . 5g32.2 Informative references 5g33 Definitions and abbreviations . 6g33.1 Definitions 6g33.2 Abbreviations . 6g34 Housing configurations 7g35 Environmental conditions. 8g35.1 Specification T 3.3: Partly temperature-controlled locations (according to EN 300 019-1-3) . 10g3
9、History 12g3ETSI ETSI TR 101 576 V1.1.1 (2011-12) 4Intellectual Property Rights IPRs essential or potentially essential to the present document may have been declared to ETSI. The information pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can
10、be found in ETSI SR 000 314: “Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in respect of ETSI standards“, which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web server (http:/ipr.etsi.org). Pursuant to the ETSI IP
11、R Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web server) which are, or may be, or may become, essential to the present document. Foreword Thi
12、s Technical Report (TR) has been produced by ETSI Technical Committee Environmental Engineering (EE). Introduction The present document defines Recommendation for the applicability of environmental classes in outdoor cabinet environment. ETSI ETSI TR 101 576 V1.1.1 (2011-12) 51 Scope The present doc
13、ument describes the Recommendations for the applicability of environmental classes in outdoor cabinet environment. The present document applies for the powering of all equipment of the access network (copper, fibre or radio networks) located outside telecommunications centres. The present document i
14、s intended to be applicable to empty cabinets which can be equipped for installation in an outdoor location. The recommendations for outdoor equipment also apply, where relevant, to empty outdoor enclosures supplied for housing Information technology equipment to be installed in an outdoor location.
15、 The recommendations for humidity, vibration, shock, biologic conditions, chemical active substances and mechanically active substances (sand, dust, etc.) and mechanical conditions including earthquake contained within relevant standards of intended use according to EN 300 019 series i.2 to i.7. 2 R
16、eferences References are either specific (identified by date of publication and/or edition number or version number) or non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the reference document (including any amendments) applies.
17、 Referenced documents which are not found to be publicly available in the expected location might be found at http:/docbox.etsi.org/Reference. NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee their long term validity. 2.1 Normative refer
18、ences The following referenced documents are necessary for the application of the present document. Not applicable. 2.2 Informative references The following referenced documents are not necessary for the application of the present document but they assist the user with regard to a particular subject
19、 area. i.1 ETSI EN 302 099: “Environmental Engineering (EE); Powering of equipment in access network“. i.2 ETSI EN 300 019-1-0: “Environmental Engineering (EE); Environmental conditions and environmental tests for telecommunications equipment; Part 1-0: Classification of environmental conditions; In
20、troduction“. i.3 ETSI EN 300 019-1-1: “Environmental Engineering (EE); Environmental conditions and environmental tests for telecommunications equipment; Part 1-1: Classification of environmental conditions; Storage“. i.4 ETSI EN 300 019-1-2: “Environmental Engineering (EE); Environmental conditions
21、 and environmental tests for telecommunications equipment; Part 1-2: Classification of environmental conditions; Transportation“. i.5 ETSI EN 300 019-1-3: “Environmental Engineering (EE); Environmental conditions and environmental tests for telecommunications equipment; Part 1-3: Classification of e
22、nvironmental conditions; Stationary use at weather protected locations“. i.6 ETSI EN 300 019-1-4: “Environmental Engineering (EE); Environmental conditions and environmental tests for telecommunications equipment; Part 1-4: Classification of environmental conditions; Stationary use at non-weather pr
23、otected locations“. ETSI ETSI TR 101 576 V1.1.1 (2011-12) 6i.7 ETSI EN 300 019-1-8: “Environmental Engineering (EE); Environmental conditions and environmental tests for telecommunications equipment; Part 1-8: Classification of environmental conditions; Stationary use at underground locations“. i.8
24、IEC 60950-22: “Information technology equipment - Safety - Part 22: Equipment installed outdoors“. i.9 IEC 60068-2-1: “Environmental testing - Part 2-1: Tests - Test A: Cold“. i.10 IEC 60068-2-2: “Environmental testing - Part 2-2: Tests - Test B: Dry heat“. i.11 IEC 60068-2-14: “Environmental testin
25、g - Part 2-14: Tests - Test N: Change of temerature“. i.12 IEC 60068-2-56: “Environmental testing - Part 2-56: Tests - Test Cb: Damp heat, steady state, primarily for equipment“. i.13 IEC 60068-2-30: “Environmental testing - Part 2-30: Tests - Test Db: Damp heat, cyclic (12 h + 12 h cycle)“. 3 Defin
26、itions and abbreviations 3.1 Definitions For the purposes of the present document the following terms and definitions apply: access network: part of a telecommunications network between the customer terminal installation and the first switching unit outdoor enclosure: part of outdoor equipment that
27、is exposed to the adverse conditions in an outdoor location and that is intended to protect the interior of the equipment from those conditions NOTE 1: An outdoor enclosure can also perform the functions of one or more of the following: square4 a fire enclosure; square4 an electrical enclosure; squa
28、re4 a mechanical enclosure. NOTE 2: A separate cabinet or housing into which the equipment is placed can provide the function of an outdoor enclosure. outdoor equipment: equipment specified by the manufacturer to be installed where exposed wholly or partly to the conditions in an outdoor location NO
29、TE: Transportable equipment, for example, a laptop or notebook computer, or a telephone, is not outdoor equipment unless specified by the manufacturer for continuous use in an outdoor location. outdoor location: location for equipment where protection from the weather and other outdoor influences pr
30、ovided by a building or other structure is limited or non-existent 3.2 Abbreviations For the purposes of the present document, the following abbreviations apply: CH Customers Home DSLAM Digital Subscriber Line Access Multiplexer FTTB Fibre To The Building FTTC Fibre To The Curb FTTCab Fibre To The C
31、abinet FTTH Fibre To The Home ETSI ETSI TR 101 576 V1.1.1 (2011-12) 7OLT Optical Line Termination PCM Pulse Code Multiplex RCD Residual Current Device SDH Synchron Digital Hierarchy TC Telecommunications Centre4 Housing configurations The main characteristic feature of the different housing architec
32、tures of access network equipment is the location of the following three functions: the point of connection to the mains and the transmission equipment; and the place of power back-up; or the enclosure with transmission equipment powered remotely from a telecommunications centre (centralized powerin
33、g) or from a power supply node (cluster powering). The total network can be divided in three main parts: 1) the Telecommunication Centre (TC); 2) the field (the undefined area - access area - between the Telecom Centre and the Customers Home); 3) the Customers Home (CH). Housing architectures Equipm
34、ent of access network can be located: separately in a enclosure (weather- or non-weather protected or underground location); in an enclosure in the connection to FTTB, FTTC, FTTCab or FTTH or wireless access. The equipment in the enclosure can be for example: unit mains connection; unit with lightni
35、ng protection, RCD and circuit breaker; a power supply unit; control - and monitoring management unit; different subracks - transmission equipment, or radio unit; distribution racks; fan; heat exchanger; battery charger; batteries. ETSI ETSI TR 101 576 V1.1.1 (2011-12) 85 Environmental conditions EN
36、 300 019-1-0 i.2 defines the classification of the environmental conditions. EN 300 019-1-3 i.5 specifies the classification of environmental conditions in Stationary use at weather protected locations, EN 300 019-1-4 i.6 specifies the classification of environmental conditions in Stationary use at
37、non-weather protected locations and EN 300 019-1-8 i.7 specifies the requirements for stationary use at underground locations. The classification of environmental conditions for Storage defined in EN 300 019-1-1 i.3 and for Transportation EN 300 019-1-2 i.4. Table 1 i.1 gives the ETSI environmental
38、classes applicable to three main locations for information. Table 1: Examples for housing equipment locations (informative) i.1, i.8 Weather protected locations Housing Equipment Location Class 3.1 Temperature Controlled Locations Class 3.2 Partly Temperature controlled locations Class 3.3 Not Tempe
39、rature controlled locations Class 3.4 Sites with Heat-trap Class 3.5 Sheltered locations Class 4.1 Non- Weather-protected Locations Class 8.1 Under-ground locations Outside plant - - circleshadowdwn circle6 circle6 circle6 circle6 Inside a building circle6 circle6 circle6 circleshadowdwn - - - Custo
40、mer home circle6 circleshadowdwn - - - - - circle6 Suitable for most cases. circleshadowdwn Suitable for some cases. - Not suitable for most cases. Equipment in outdoor location should be classified as follows: Fully integrated equipment. Not fully integrated equipment. Fully integrated equipment is
41、 a product specifically designed for outdoor use. This category covers small access equipment (e.g. SDH, PCM, OLT, DSLAM or similar wireline or wireless products). The environmental class applicable to this class of equipment should be at least class 4.1 defined in EN 300 019-1-4 i.6; in this case t
42、he environmental class is applied at the combination outdoor cabinet within containing the equipment. The outdoor enclosure that has to host the equipment has to be designed in order to ensure the internal climatic conditions are in line with the environmental class of the equipment that will be inc
43、orporated. The equipment for free air cooled outdoor enclosures should be able to operate in the temperature range of the climate class 3.3: -25 C till +55 C. For exceptional climatic limits conditions (e. g. duration of cooling failure, loss of Fan function or Heat exhauster or extreme outside temp
44、erature) the maximum internal temperature of an outdoor enclosure can reach +65 C. Equipment functionality may be degraded but no damage should be experienced and normal service should be restored when returning to the normal temperature range. Not fully integrated equipment is a product not specifi
45、cally designed for outdoor use. This category covers equipment installed in a outdoor cabinet. The environmental class 4.1 defined in EN 300 019-1-4 i.6 should be applied for the outdoor cabinet ; the equipment inside the cabinet should be compliant to environmental class ensured by the internal con
46、ditions of the cabinet. The cabinet should be designed in such a way that the delta T between external temperature “ Tambient“ and the internal equipment temperature “Tinlet“ is at least 10K (see figure 1). ETSI ETSI TR 101 576 V1.1.1 (2011-12) 9Figure 1: Double-wall Outdoor Cabinet - Tambient/TInle
47、tIn fully air conditioned or temperature controlled outdoor enclosures (e.g. shelter allowing personnel to enter) the equipment should be compliant to class 3.1 according EN 300 019-1-3 i.5 inside. Equipment T inletT ambientETSI ETSI TR 101 576 V1.1.1 (2011-12) 105.1 Specification T 3.3: Partly temp
48、erature-controlled locations (according to EN 300 019-1-3) This specification applies to enclosed locations having neither temperature nor humidity control, but where heating may be used to avoid low temperatures. The building construction avoids extremely high temperatures. See tables 2 and 3. Tabl
49、e 2: Test specification T 3.3: Partly temperature controlled locations - climatic tests Environmental parameter Environmental Class 3.3 Type Parameter Detail parameter Characteristic severity Test severity Duration Reference Method Air temperature Low (C) -25 -25 16 h IEC 60068-2-1 i.9 Ab/Ad: Cold High (C) +55 +55 16 h IEC 60068-2-2 i.10 Bb/Bd: Dry heat Change (C) (C/min) 0,5 +25/+55 0,5 half cycle t1= 3 h IEC 60068-2-14 i.11 Nb: Change of temperature Humidity Relative lo
