1、ETSI EN 300 O1 9-1 -8 2.1.4 (2003-04) European Sfandard (Telecommunicafions series) Environmental Engineering (EE); Environmental conditions and environmental tests for telecommunications equipment; Part 1-8: Classification of environmental conditions; Stationary use at underground locations 2 ETSI
2、EN 300 019-1-8 V2.1.4 (2003-04) Reference REN/EE-01027-1-82 Keywords environment, testing, underground ETSI 650 Route des Lucioles F-O6921 Sophia Antipolis Cedex - FRANCE Tel.: +33 4 92 94 42 O0 Fax: +33 4 93 65 47 16 Siret No 348 623 562 00017 - NAF 742 C Association but non lucratif enregistre la
3、Sous-prfecture de Grasse (06) No 7803/88 Important notice Individual copies of the present document can be downloaded from: http:lwmv.etsi .arq The present document may be made available in more than one electronic version or in print. In any case of existing or perceived difference in contents betw
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6、t as authorized by written permission. The copyright and the foregoing restriction extend to reproduction in all media. O European Telecommunications Standards Institute 2003. All rights reserved. DECTTM, PLUGTESTSTMand UMTSTMare Trade Marks of ETSI registered for the benefit of its Members. TIPHONT
7、M and the TIPHON logo are Trade Marks currently being registered by ETSI for the benefit of its Members. 3GPPTM is a Trade Mark of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. ETSI 3 ETSI EN 300 019-1-8 V2.1.4 (2003-04) Contents Intellectual Property Rights
8、 . .4 Foreword . 4 1 2 3 4 4.1 5 5.1 5.2 5.3 5.4 5.5 5.6 Scope 5 References . .5 Definitions 5 Environmental class .6 Environmental conditions .7 Class 8.1 : partly weatherprotected underground locations . 6 7 8 8 8 Climatic conditions . Biological conditions Chemically active substances . Mechanica
9、lly active substances Mechanical conditions . . 9 Earthquake conditions . . 9 History 11 ETSI 4 ETSI EN 300 019-1-8 V2.1.4 (2003-04) Intellectual Property Rights IPRs essential or potentially essential to the present document may have been declared to ETSI. The information pertaining to these essent
10、ial IPRs, if any, is publicly available for ETSI members and non-members, and can be found in ETSI SR O00 3 14: “Intellectual Property Rights (7PRs); Essential, orpotentially Essential, IPRs notlJied to ETSI in respect ofETSI standards“, which is available from the ETSI Secretariat. Latest updates a
11、re available on the ETSI Web server (5). All published ETSI deliverables shall include information which directs the reader to the above source of information. Foreword This European Standard (Telecommunications series) has been produced by ETSI Technical Committee Environmental Engineering (EE). Th
12、e present document is part 1, sub-part 8 of a multi-part deliverable covering the classification of environmental conditions and environmental tests for telecommunications equipment, as identified below: Part 1: “Classification of environmental conditions“; Sub-part O : “Introduction“ ; Sub-part 1 :
13、 “Storage“; Sub-part 2: “Transportation“; Sub-part 3: Sub-part 4: Sub-part 5: “Ground vehicle installations“; Sub-part 6: “Ship environments“; Sub-part 7: “Stationary use at weatherprotected locations“; “Stationary use at non-weatherprotected locations“; “Portable and non-stationary use“; Sub-part 8
14、: “Stationary use at underground locations“; Part 2: “Specification of environmental tests“. Part 1 specifies different standardized environmental classes covering climatic and biological conditions, chemically and mechanically active substances and mechanical conditions during storage, transportati
15、on and in use. Part 1-0 forms a general overview of part 1. Part 2 specifies the recommended test severities and test methods for the different environmental classes. National transposition dates Date of latest announcement of this EN (doa): Date of latest publication of new National Standard or end
16、orsement of this EN (dop/e): Date of withdrawal of any conflicting National Standard (dow): 3 1 July 2003 3 1 January 2004 3 1 January 2004 ETSI 5 ETSI EN 300 019-1-8 V2.1.4 (2003-04) 1 Scope The present document defines the classes of environmental conditions and their severities to which telecommu
17、nications equipment may be exposed. The severities specified are those which will have a low probability of being exceeded; generally less than 1 %. The present document applies to equipment installed for stationary use at underground locations during: - normal operation; - - on site installation an
18、d lining up; repair, maintenance and restoration of functions failed. 2 Re fe re nces The following documents contain provisions which, through reference in this text, constitute provisions of the present document. References are either specific (identified by date of publication andor edition numbe
19、r or version number) or non-specific. For a specific reference, subsequent revisions do not apply. For a non-specific reference, the latest version applies. Referenced documents which are not found to be publicly available in the expected location might be found at http: /docbcts.etsi.ctrg/Referenct
20、 il ETSI ETR 035: “Equipment Engineering (EE); Environmental engineering Guidance and terminology“. IEC 6072 1-3-3 : “Classification of environmental conditions - Part 3 : Classification of groups of environmental parameters and their severities - Section 3 : Stationary use at weatherprotected locat
21、ions“. 21 31 41 IEC 60068-2-27: “Environmental testing. Part 2: Tests. Test Ea and guidance: Shock“. IEC 6072 1-2-6: “Classification of environmental conditions. Part 2: Environmental conditions appearing in nature. Earthquake vibration and shock“. IEC 60068-3-3: “Environmental testing. Part 3: Guid
22、ance. Seismic test methods for equipment“. 51 3 Defi n it ions For the purposes of the present document, the following terms and definitions apply: absolute humidity: mass of water vapour in grammes which is associated with one cubic metre of dry air in an aidwater vapour mixture NOTE: It is not int
23、ended for portable use but short periods of handling during erection work, down time, maintenance and repair at the location are accepted. relative humidity: ratio of the partial pressure of the water vapour in moist air at a given temperature, to the partial pressure of the water vapour in saturate
24、d air at the same temperature stationary use: equipment permanently placed at a certain site ETSI 6 ETSI EN 300 019-1-8 V2.1.4 (2003-04) weatherprotected location: location at which the equipment is protected from direct weather influences NOTE 1 : Totally weatherprotected location: direct weather i
25、nfluences are totally excluded. NOTE 2: Partly weatherprotected location: direct weather influences are not completely excluded. 4 Envi ron men ta I class 4.1 Class 8.1 : partly weatherprotected underground locations At present no underground classes in IEC 60721 Publication series exist. This class
26、 is a combination of classes 327/3B2/3C2(3C3)/3S3/3M3(3M5) in IEC 60721-3-3 2. As no IEC 60721-3-3 2 climatic class is applicable, climatic conditions are described in clause 4 based on measurements conducted at typical underground telecommunications locations. Seismic environment: zone 4 as defied
27、in IEC 6072 1-2-6 4. Option zone 4 (modified Mercalli scale 2 9): if earthquake conditions are specified by the customer, the conditions stated in clause 5.6 apply. This class applies to partly weatherprotected underground locations. The location has no temperature or humidity control, but the varia
28、tions in the temperature are limited due to the stabilizing influence of the surroundings. The climatogram is shown in figure 1. This class applies to locations: - - where the installed equipment is normally protected from direct weather influences; where the surrounding medium is normally air, but
29、the equipment may be immersed in water during exceptional conditions; where mould growth or attacks by animals, except termites, may occur; with normal levels of contaminants experienced in urban areas with industrial activities scattered over the whole area andor with heavy traffic; - - NOTE 1 : At
30、 locations in the immediate neighbourhood of industrial sources with chemical emissions either special precautions shall be taken or the special chemical class 3C3 shall be chosen. - - NOTE 2: At locations where the level of shock is high, e.g. in close vicinity of road traffic or adjacent to heavy
31、in close proximity to sources of sand and dust; with vibration and shock of low significance. machines, etc., either special precautions shall be taken or the special mechanical class 3M5 shall be chosen. The conditions of this class may be found in: - footway boxes; - manholes: - some tunnels; - et
32、c. ETSI 7 ETSI EN 300 019-1-8 V2.1.4 (2003-04) Environmental parameter a) Low air temperature c) Low relative humidity d) High relative humidity e) Low absolute humidity b) High air temperature 50 40 Unit Class 8.1 “C -1 o “C +40 (see note 1) % 5 % 1 O0 gIm3 03 30 E f) g) -20 High absolute humidity
33、g/m3 23 Rate of change of temperature (see note 2) “Clmin 5 (see note 3) n m E 6 Y j) k) i) m) n) o) p) 23 3 z E 3 I Solar radiation W/m2 no Heat radiation W/m2 yes (see note 5) Movement of surrounding air mls 1 Conditions of condensation none yes Conditions of wind-driven rain, snow, hail, etc. non
34、e no Conditions of water from sources other than rain none dripping water, condensed water soil water Conditions of icing none Yes L O 10 20 30 40 50 60 70 80 90 100 Relative Air Humidity % Figure 1 : Climatogram for class 8.1 : partly weatherprotected underground locations 5 5.1 Envi ron men tal co
35、nd it ions CI i ma tic cond it ions ETSI 8 Environmental parameter a) Flora b) Fauna ETSI EN 300 019-1-8 V2.1.4 (2003-04) Unit Class 8.1 none none presence of mould, fungus etc. presence of rodents or other animals harmful to products but excluding termites (see note) 5.2 Environmental parameter a)
36、Sand b) Dust (suspension) c) Dust (sedimentation) Biological conditions Unit Class 8.1 mg/m3 300 mg/m3 0,4 mg/(m2h) 15 5.3 Chemically active substances The parameters and their severities for airborne contaminants are given by table 3. Table 3: Chemically active substances for environmental class 8.
37、1 dOTE 1: The values given in cm3/m3 have been calculated from the values given in mg/m3 and refer to a temperature of +20“C and a pressure of 101,3 kPa. The table uses rounded values. dOTE 2: Mean values are the average values (long-term values) to be expected. dOTE 3: Maximum values are limit or p
38、eak values occurring over a period of not more than 30 minutes per day. dOTE 4: Expressed in the equivalent values of nitrogen dioxide. dOTE 5: It is not mandatory to consider the special class 3C3 as a requirement for the combined effect of all parameters stated. If applicable, values of single par
39、ameters may be selected from this special class. In such instances the values given for the class 8.1 are valid for all parameters not especially named. 5.4 Mechanically active substances Table 4: Mechanically active substances for environmental class 8.1 ETSI 5.5 a) 9 Environmental parameter (see n
40、ote 1) Stationary vibration, sinusoidal: ETSI EN 300 019-1-8 V2.1.4 (2003-04) b) M echan i ca I cond it ions displacement amplitude acceleration amplitude frequency range (see note 2) Non-stationary vibration including shock (see note) shock response spectrum type L, peak acceleration duration shock
41、 response spectrum type II, peak acceleration duration Table 5: Mechanical conditions for the environmental class 8.1 I .IOTE 1: Peak values For definition of Model Shock Response Unit mm m/s2 Hz m/s2 ms m/s2 ms pedra (First ( see IEC 60721-3-3 121. and Maximax see IEC 60068-2-27 131. Class 70 22 le
42、r Maximax Shock Response Special1 (3M5) 250 6 pedra) 5.6 Earthquake conditions The dynamic environment which an equipment experiences during an earthquake depends on several parameters including the intensity of the ground motion and the characteristics of the structures used to support andor house
43、the equipment itself. The conditions hereafter stated refer only to equipment mounted at underground locations using a structure of high rigidity. The most common way to speciSl seismic conditions is through the definition of a Response Spectrum (RS). An RS is the graphical representation of the max
44、imum responses .e. acceleration), of an array of single degree-of-freedom oscillators as a function of oscillator frequency, in response to an applied transient base motion. In other words the RS may be used to describe the motion that equipment is expected to experience at its mounting during a pos
45、tulated seismic event. To defie an RS it is necessary to defie the postulated base motion and the characteristics of the array of the single degree-of-freedom oscillators, including their damping ratio. The high frequency asymptotic value of the acceleration of the response spectrum is normally call
46、ed Zero Period Acceleration (ZPA) and represents the largest peak value of acceleration of the base motion. In absence of a detailed knowledge of the possible seismic motion, the ZPA value can be obtained by the following formula (see IEC 60068-3-3 5): ZPA = af = ag XK XD XG where: af poor accelerat
47、ion; ag K ground acceleration that depends on the intensity of the earthquake; superelevation factor that takes into account the amplification of the ground acceleration resulting from the vibrational behaviour of supporting structures; ETSI 10 ETSI EN 300 019-1-8 V2.1.4 (2003-04) Parameters Superel
48、evation factor Direction factor Geometric factor D direction factor that takes into consideration possible intensity differences of the seismic motion among the horizontal and vertical axes; Description Severity Mounting of equipment on rigid foundations or on structures of high rigidity Single-axis
49、 excitation with no interaction with the other K = 1 (see note) No intensity differences among axes Dx,y,z = G=l G geometric factor; this is normally specified among testing parameters when single axis excitation is used for testing to take into account the interaction, due to installation location, along the different axes of the equipment of simultaneous multi-directional input vibrations. The parameter severities that shall be used for class 8.1 are reported in table 6. The severities have been chosen from those stated in IEC 60068-3-3 5. Hzl m/s2 N
