SIST EN 300 019-1-3 V2.1.1:2006

• Abstract:

  The present document defines classes of environmental conditions and their severities to which telecommunication 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 mounted for stationary use including periods of erection work, down time, maintenance and repair at weatherprotected locations defined in clause 5.

• Status: Published
• Publication Date: 31-Jan-2006
• ICS: 19.040 - Environmental testing
• ICS: 33.050.01 - Telecommunication terminal equipment in general
• Technical Committee: SS EIT - Technical Board for the electrotechnical, information technology and telecommunications fields
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Feb-2006
• Due Date: 01-Feb-2006
• Completion Date: 01-Feb-2006
• Ref Project: ETSI EN 300 019-1-3 V2.1.1 (2002-11) - Environmental Engineering (EE); Environmental conditions and environmental tests for telecommunications equipment; Part 1-3: Classification of environmental conditions; Stationary use at weatherprotected locations

SIST EN 300 019-1-3 V2.1.1:2006 is the Slovenian adoption of ETSI EN 300 019-1-3 V2.1.1. It defines environmental condition classes and their severities for telecommunications equipment used at weatherprotected stationary locations. Engineers, quality managers, and buyers use it to match a site or product to the right environmental class and to judge what conditions the equipment should withstand.

What does SIST EN 300 019-1-3 V2.1.1:2006 specify?

SIST EN 300 019-1-3 V2.1.1:2006 specifies a classification of environmental conditions for telecommunication equipment at stationary, weatherprotected locations. It gives the environmental classes, the severities associated with them, and the way those classes are described through climatic, biological, chemical, mechanical, and seismic conditions.

The document is organized into a short front matter, Clause 1 on scope, Clause 2 on references, Clause 3 on definitions, Clause 4 on environmental classes, Clause 5 on environmental conditions, and Annex A with a bibliography. Clause 4 is the core classification section, while Clause 5 provides the parameter tables and figures that turn the class names into usable site criteria.

What are the key requirements of SIST EN 300 019-1-3 V2.1.1:2006?

Clause 4 defines six environmental classes for this use case: 3.1, 3.2, 3.3, 3.4, 3.5, and 3.6. Each class corresponds to a typical kind of stationary installation, such as a temperature-controlled room, a partly temperature-controlled enclosure, a sheltered location, or a telecommunication control room. In practice, this is the starting point for deciding which environmental profile fits the equipment and the site.

How the six classes are differentiated

• Class 3.1 and Class 3.6 are permanently temperature-controlled enclosed locations. Clause 4 says humidity is usually not controlled, and the heating, cooling, ventilation, and humidification systems maintain the required room conditions. This matters when equipment is installed in buildings or control rooms where indoor climate control is expected.
• Class 3.2 covers partly temperature-controlled locations with no temperature or humidity control. Clause 4 describes this as an enclosed location that may still see outside influence through openings or building construction. That means the equipment can face wider swings than in a fully controlled room.
• Class 3.3 covers weatherprotected locations with no temperature or humidity control. Clause 4 allows the location to be only partially weatherprotected, so it can see condensed water, limited wind-driven precipitation, icing, and open-air influence.
• Class 3.4 covers sites with heat-trap conditions. Clause 4 notes direct solar radiation and heat-trap effects, so the equipment may experience higher thermal stress than in a simple sheltered enclosure.
• Class 3.5 covers sheltered locations. Clause 4 says direct solar radiation and heat-trap conditions do not exist, but roof or wall heating, moisture, icing, and limited wind-driven precipitation can still occur.
• Class 3.6 covers telecommunication control room locations. Clause 4 identifies these as dedicated control rooms within telecommunication centres used for small specialized peripheral equipment such as workstations, test equipment, storage media, and printers.

Clause 5.1 provides the climatic parameters in Table 1. It covers air temperature, relative humidity, absolute humidity, rate of temperature change, air pressure, solar radiation, heat radiation, air movement, condensation, wind-driven rain or snow, water from sources other than rain, and icing. In practice, this table is the main checklist for describing the environmental load that equipment or a site must tolerate.

Clause 5.2 gives the biological conditions in Table 2. It distinguishes locations with no biological exposure from locations where mould, fungus, rodents, or other harmful animals may be present. This matters for enclosure design, sealing, material choice, and maintenance planning.

Clause 5.3 defines chemically active substances in Tables 3a and 3b. The tables cover salt mist and gases such as sulphur dioxide, hydrogen sulphide, chlorine, hydrochloric acid, hydrofluoric acid, ammonia, ozone, and nitrogen oxides. The document also distinguishes the special classes 3C1 and 3C3. In practice, this helps users decide whether the site needs normal urban conditions, coastal exposure, or a more severe chemical environment.

Clause 5.4 gives mechanically active substances in Table 4. It covers sand and dust, including dust in suspension and dust sedimentation. The note in this clause says that where air filtering is used, the mechanically active substances of Class 3.1 apply. That is important for protected indoor installations with filtration.

Clause 5.5 sets out mechanical conditions in Table 5. It covers stationary sinusoidal vibration and non-stationary vibration, including shock. The note points users to ETSI EN 300 019-2-3 for random vibration test severities and recommends random vibration where it represents practice better than sinusoidal vibration. In practice, this clause is used to check mounting strength, transport sensitivity inside the site, and resistance to machine or vehicle-induced vibration.

Clause 5.6 covers earthquake conditions. It explains response spectrum (RS) methods, zero period acceleration (ZPA), and the factors used to derive seismic severity when detailed seismic motion is not known. Table 6 gives the earthquake parameters for Classes 3.1 to 3.5, and Figure 7 with Table 7 gives the response spectrum coordinates. This matters when equipment is installed in seismic regions and the mounting structure or enclosure must be assessed for earthquake performance.

What terms does SIST EN 300 019-1-3 V2.1.1:2006 define?

• Absolute humidity - the mass of water vapour in one cubic metre of dry air in an air-water vapour mixture.
• Air conditioning system - a system that fully and automatically controls air temperature and humidity by heating, cooling, humidifying, and dehumidifying.
• Climate-controlling system - a system that controls or influences climate by acting on at least one climatic parameter in one direction.
• Cooling system - a system that lowers air temperature only.
• Forced ventilation system - a system that influences climate by bringing outdoor air into a room or expelling room air.
• Heating system - a system that increases air temperature only.
• Relative humidity - the ratio of water vapour partial pressure in moist air to the saturation pressure at the same temperature.
• Stationary use - equipment firmly mounted or permanently placed at a site, including handling during erection, down time, maintenance, and repair.
• Weatherprotected location - a location protected from direct weather influences, either totally or partly.

Who uses SIST EN 300 019-1-3 V2.1.1:2006?

SIST EN 300 019-1-3 V2.1.1:2006 is used by telecommunications equipment designers, environmental and reliability engineers, site planners, test laboratories, quality managers, and purchasers who need to specify installation conditions. It is especially relevant for fixed installations in telecommunication centres, control rooms, offices, workshops, storage rooms, sheds, garages, and sheltered or partly sheltered buildings.

In practice, users apply it when selecting an environmental class, writing product requirements, planning installation sites, or deciding which environmental tests and severities should be used for equipment intended for stationary service.

What changed in SIST EN 300 019-1-3 V2.1.1:2006 from the previous edition?

The history in the document records an earlier Edition 1 from 1992, Amendment 1 from 1997, a V2.1.0 approval step that was withdrawn, and the March 2003 publication of V2.1.1. The page identifies this document as EN 300 019-1-3 Version 2.1.1.

Which standards are used with SIST EN 300 019-1-3 V2.1.1:2006?

• IEC 60721-3-3 - provides the environmental class framework used throughout Clause 4 and the class combinations referenced for each location type.
• IEC 60068-2-27 - provides shock test guidance referenced in the mechanical conditions clause.
• IEC 60721-2-6 - provides the earthquake environment zones and earthquake motion context used in the seismic clauses.
• IEC 60068-3-3 - provides guidance for seismic test methods and the response spectrum approach used in Clause 5.6.
• ETSI EN 300 019-2-3 - gives the environmental test specifications for stationary use at weatherprotected locations.
• IEC 60721-3-0 - provides the general introduction to the classification system and the meaning of the probability language used for severity levels.

What does the SIST EN 300 019-1-3 V2.1.1:2006 document contain?

The document contains class descriptions, climatograms, and parameter tables that turn site conditions into defined environmental classes. Tables 1 to 5 summarize climatic, biological, chemical, mechanically active, and mechanical conditions, while Figures 1 to 6 show the climatograms for the six classes.

It also contains the earthquake method in Clause 5.6, including the response spectrum concept, the ZPA formula, Table 6 on earthquake parameters, and Table 7 on spectrum coordinates. Annex A gives the bibliography. Together, these parts support site classification, product specification, environmental testing, and engineering review for stationary telecommunications equipment.

SLOVENSKI STANDARD
01-februar-2006
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Environmental Engineering (EE); Environmental conditions and environmental tests for
telecommunications equipment; Part 1-3: Classification of environmental conditions;
Stationary use at weatherprotected locations
Ta slovenski standard je istoveten z: EN 300 019-1-3 Version 2.1.1
ICS:
19.040 Preskušanje v zvezi z Environmental testing
okoljem
33.050.01 Telekomunikacijska Telecommunication terminal
terminalska oprema na equipment in general
splošno
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

ETSI EN 300 019-1-3 V2.1.1 (2003-03)
European Standard (Telecommunications series)

Environmental Engineering (EE);
Environmental conditions and environmental tests
for telecommunications equipment;
Part 1-3: Classification of environmental conditions;
Stationary use at weatherprotected locations

2 ETSI EN 300 019-1-3 V2.1.1 (2003-03)

Reference
REN/EE-01027-1-3
Keywords
environment, testing, equipment practice
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ETSI
3 ETSI EN 300 019-1-3 V2.1.1 (2003-03)
Contents
Intellectual Property Rights.4
Foreword.4
1 Scope.5
2 References.5
3 Definitions.5
4 Environmental classes.6
4.1 Class 3.1: Temperature-controlled locations .6
4.2 Class 3.2: Partly temperature-controlled locations.7
4.3 Class 3.3: Not temperature-controlled locations .9
4.4 Class 3.4: Sites with heat-trap .10
4.5 Class 3.5: Sheltered locations.11
4.6 Class 3.6: Telecommunication Control Room locations .12
5 Environmental conditions.13
5.1 Climatic conditions.13
5.2 Biological conditions.14
5.3 Chemically active substances .14
5.4 Mechanically active substances.16
5.5 Mechanical conditions.16
5.6 Earthquake conditions.17
Annex A (informative): Bibliography.19
History .20

ETSI
4 ETSI EN 300 019-1-3 V2.1.1 (2003-03)
Intellectual 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 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://webapp.etsi.org/IPR/home.asp).
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).
The present document is part 1, sub part 3 of a multi-part deliverable covering the classification of environmental
conditions for telecommunications equipment, as identified below:
Part 1: "Classification of environmental conditions"; (see note 1)
Sub-part 0: "Introduction";
Sub-part 1: "Storage";
Sub-part 2: "Transportation";
Sub-part 3: "Stationary use at weatherprotected locations";
Sub-part 4: "Stationary use at non-weatherprotected locations";
Sub-part 5: "Ground vehicle installations";
Sub-part 6: "Ship environments";
Sub-part 7: "Portable and non-stationary use";
Sub-part 8: "Stationary use at underground locations";
Part 2: "Specification of environmental tests". (see note 2)
NOTE 1: Specifies different standardized environmental classes covering climatic and biological conditions,
chemically and mechanically active substances and mechanical conditions during storage, transportation
and in use. Sub-part 1-0 forms a general overview of part 1.
NOTE 2: Specifies the recommended test severities and test methods for the different environmental classes.

National transposition dates
Date of adoption of this EN: 21 March 2003
Date of latest announcement of this EN (doa): 30 June 2003
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 31 December 2003
Date of withdrawal of any conflicting National Standard (dow): 31 December 2003

ETSI
5 ETSI EN 300 019-1-3 V2.1.1 (2003-03)
1 Scope
The present document defines classes of environmental conditions and their severities to which telecommunication
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 mounted for stationary use including periods of erection work, down time,
maintenance and repair at weatherprotected locations defined in clause 5.
2 References
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 and/or edition number 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://docbox.etsi.org/Reference.
[1] IEC 60721-3-3: "Classification of environmental conditions - Part 3-3: Classification of groups of
environmental parameters and their severities - Stationary use at weatherprotected locations".
[2] IEC 60068-2-27: "Environmental testing. Part 2: Tests. Test Ea and guidance: Shock".
[3] IEC 60721-2-6: "Classification of environmental conditions. Part 2: Environmental conditions
appearing in nature. Earthquake vibration and shock".
[4] IEC 60068-3-3: "Environmental testing - Part 3: Guidance. Seismic test methods for equipment".
[5] ETSI EN 300 019-2-3: "Equipment Engineering (EE);Environmental conditions and
environmental tests for telecommunications equipment; Part 2-3: Specification of environmental
tests; Stationary use at weatherprotected locations".
[6] IEC 60721-3-0: "Classification of environmental conditions - Part 3: Classification of groups of
environmental parameters and their severities - Introduction".
3 Definitions
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
air/water vapour mixture
air conditioning system: system that fully and automatically controls the climatic parameters air temperature and
humidity by heating, cooling, humidifying and dehumidifying
climate-controlling system: system that controls or influences climate, acting at least on one climatic parameter in one
direction
cooling system: system that controls or influences climate by decreasing the air temperature only
NOTE: This can decrease the absolute humidity.
forced ventilation system: system that controls or influences climate by introducing outdoor air into the room or
expelling air out of the room
ETSI
6 ETSI EN 300 019-1-3 V2.1.1 (2003-03)
heating system: system that controls or influences climate by increasing the air temperature only
NOTE: This can decrease the relative humidity.
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 saturated air at the same temperature
stationary use: The equipment is mounted firmly on the structure, or on mounting devices, or it is permanently placed
at a certain site. It is not intended for portable use - but short periods of handling during erection works, down time,
maintenance and repair at the location are included.
weatherprotected location: location at which the equipment is protected from direct weather influences
- totally weatherprotected location (enclosed location):
- direct weather influences are totally excluded,
- partly weatherprotected location (sheltered location):
- direct weather influences are not completely excluded.
4 Environmental classes
The classes shown in parentheses, e.g. (3C1), may be selected for special applications.
4.1 Class 3.1: Temperature-controlled locations
Class 3.1 is a combination of classes 3K3/3Z2/3Z4/3B1/3C2(3C1)/3S2/3M1 in IEC standard 60721-3-3 [1].
The climatogram is shown in figure 1 in clause 4.1.
Seismic environment: zone 4 as defined in IEC 60721-2-6 [3]. Option zone 4 (modified Mercalli scale ≥ 9): if earthquake
conditions are specified by the customer, the conditions stated in clause 5.6 apply.
This class applies to a permanently temperature controlled enclosed location. Humidity is usually not controlled. The
climatogram is shown in figure 1.
Heating, cooling, forced ventilation and humidification are used as necessary to maintain the required
conditions - especially where there is a significant difference between the room environment and the external ambient.
The climate-controlling systems could be periodically switched on or off but extremely high or low temperatures are
prevented.
This class applies to locations:
- where installed equipment may be exposed to solar radiation and to heat radiation. It may also be exposed to
movements of the surrounding air due to draughts in buildings. They are not subjected to condensed water,
precipitation, water from sources other than rain or icing;
- without particular risks of biological attacks. This includes protective measures, e.g. special product design, or
installations at locations of such construction that mould growth and attacks by animals, etc. are not probable;
- with normal levels of contaminants experienced in urban areas with industrial activities scattered over the
whole area and/or with heavy traffic;
- without special precautions to minimize the presence of sand or dust, but which are not situated in proximity to
sources of sand or dust;
- with insignificant vibration and shock.
ETSI
7 ETSI EN 300 019-1-3 V2.1.1 (2003-03)
The conditions of this class may be found in:
- normal living or working areas, e.g. living rooms, rooms for general use (theatres, restaurants);
- offices;
- shops;
- workshops for electronic assemblies and other electrotechnical products;
- telecommunication centres;
- storage rooms for valuable and sensitive products.
³
Normal Conditions
-10
1,5
Exceptional Conditions
-20
0 10 20 30 40 50 60 70 80 90 100
Relative Air Humidity [%]
Values outside this field have a probability of occurrence of
less than 10% (see IEC 60721-3-0).
Exceptional climatic limits
Normal climatic limits: Values outside these limits have a probability of
occurrence of less than 1%.
NOTE: Exceptional conditions may occur following the failure of the temperature controlling system. This is
described as 3.1E in the tables but it should be noted that there is no separate class 3.1E.

Figure 1: Climatogram for Class 3.1: Temperature-controlled locations
4.2 Class 3.2: Partly temperature-controlled locations
This class is a combination of classes 3K5/3Z2/3Z4/3B2/3C2(3C1)/3S3/3M2 in IEC standard 60721-3-3 [1].
Seismic environment: zone 4 as defined in IEC 60721-2-6 [3]. Option zone 4 (modified Mercalli scale ≥ 9): if earthquake
conditions are specified by the customer, the conditions stated in clause 5.6 apply.
This class applies to an enclosed location having neither temperature nor humidity control. The climatogram is shown
in figure 2.
Heating may be used to raise low temperatures especially where there is a significant difference between the conditions
of this class and the open-air climate. Building construction is designed to avoid extremely high temperatures.
ETSI
Air Temperature [°C]
Absolute Air Humidity [g/m]
8 ETSI EN 300 019-1-3 V2.1.1 (2003-03)
This class applies to locations:
- where installed equipment may be exposed to solar radiation and heat radiation. They may also be exposed to
movements of the surrounding air due to draughts in buildings, e.g. through open windows. They may be
subjected to condensed water. They are not subjected to precipitation;
- 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 and/or with heavy traffic;
- in close proximity to sources of sand or dust;
- with vibration of low significance, e.g. for products fastened to light supporting structures subjected to
negligible vibrations.
The conditions of this class may be found in:
- entrances and staircases of buildings;
- garages;
- cellars;
- certain workshops;
- buildings in factories and industrial process plants;
- unattended equipment stations;
- certain telecommunication buildings;
- ordinary storage rooms for frost resistant products and farm buildings, etc.

-10
-20
0 10 2030 4050 60 7080 90 100
Relative Air Humidity [%]
Figure 2: Climatogram for class 3.2: Partly temperature-controlled locations
ETSI
Air Temperature [°C]
Absolute Air Humidity [g/m ]
9 ETSI EN 300 019-1-3 V2.1.1 (2003-03)
4.3 Class 3.3: Not temperature-controlled locations
This class is a combination of classes 3K6/3Z2/3Z4/3Z7/3B2/3C2(3C1)/3S3/3M2 in IEC 60721-3-3 [1].
Seismic environment: zone 4 as defined in IEC 60721-2-6 [3], Option zone 4 (modified Mercalli scale ≥ 9): if earthquake
conditions are specified by the customer, the conditions stated in clause 5.6 apply.
This class applies to a weatherprotected location having neither temperature nor humidity control. The location may
have openings directly to the open air, i.e. may be only partially-weather protected. The climatogram is shown in
figure 3.
The climatic conditions of this class may be affected to a varying extent by the conditions of the open-air climate and
the construction of the building.
This class applies to locations:
- where installed equipment may be exposed to solar radiation and temporarily to heat radiation. It may also be
exposed to movements of the surrounding air due to draughts e.g. through doors, windows or other openings.
It may be subjected to condensed water, to water from sources other than rain and to icing. It may temporarily
be subjected to limited wind-driven precipitation, including snow;
...