SIST EN 300 019-1-3 V2.1.2:2006

• 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 V2.1.2 (2003-04) - 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 V2.1.2:2006 is the Slovenian adoption of ETSI EN 300 019-1-3 V2.1.2. It classifies environmental conditions and their severities for telecommunications equipment used at stationary, weatherprotected locations. Engineers, test planners, quality managers, and buyers use it to describe the climate, biological, chemical, mechanical, and seismic exposure that equipment may face.

What does SIST EN 300 019-1-3 V2.1.2:2006 specify?

SIST EN 300 019-1-3 V2.1.2:2006 specifies environmental classes for telecommunications equipment at stationary weatherprotected locations, together with the severities associated with those classes. The document is meant for equipment that stays in one place, including periods of erection work, downtime, maintenance, and repair.

The structure is straightforward:

Clause	What it covers
1	Scope
2	References
3	Definitions
4	Environmental classes
5	Environmental conditions
History	Document history

Clause 4 divides the subject into six classes:

• 3.1 Temperature-controlled locations
• 3.2 Partly temperature-controlled locations
• 3.3 Not temperature-controlled locations
• 3.4 Sites with heat-trap
• 3.5 Sheltered locations
• 3.6 Telecommunication Control Room locations

Clause 5 then gives the detailed environmental parameters used to describe each class. In practice, that means the document helps a user match a site description to a standardized class before selecting tests, product options, or installation measures.

What are the key requirements of SIST EN 300 019-1-3 V2.1.2:2006?

SIST EN 300 019-1-3 V2.1.2:2006 is a classification document, so its main job is to define the expected environment rather than to prescribe a product design. The most important points are the class definitions in clause 4 and the environmental parameters in clause 5.

Environmental classes define the installation environment

Clause 4 assigns each location type to a class and links that class to an IEC 60721-3-3 environmental grouping. The practical value is that a site can be described in the same language across design, procurement, and testing. For example, a permanently temperature-controlled enclosed room is treated differently from a sheltered shelter, a heat-trap site, or an unattended building.

Climate is classified by measurable parameters

Clause 5.1 sets the climatic parameters for classes 3.1 to 3.6. These include air temperature, relative and absolute humidity, air pressure, solar radiation, heat radiation, movement of surrounding air, condensation, wind-driven rain or snow, water from sources other than rain, and icing. In practice, this is the core checklist for deciding whether a location fits a given class and whether the equipment needs extra protection.

Biological exposure depends on the class

Clause 5.2 separates clean, controlled rooms from locations where mould, fungus, rodents, or other animals may be present. Classes 3.1 and 3.6 are treated as free of those biological hazards, while classes 3.2 to 3.5 allow them. For a reader, that means enclosure design, sealing, and material choice should match the risk of biological attack.

Chemical exposure can be standard or special

Clause 5.3 covers chemically active substances such as salt mist, sulphur dioxide, hydrogen sulphide, chlorine, hydrochloric acid, hydrofluoric acid, ammonia, ozone, and nitrogen oxides. It also distinguishes ordinary conditions from special classes 3C1 and 3C3, and it explains the difference between long-term mean values and short-term maximum values. In practice, this helps a user decide whether corrosion protection, filtering, or a more severe chemical environment class is needed.

Dust, sand, vibration, and shock are part of the environment

Clause 5.4 sets mechanically active substances such as sand and dust, with higher levels for classes 3.2 to 3.5 than for 3.1 and 3.6. Clause 5.5 then defines stationary vibration and non-stationary vibration, including shock, for the same classes. The note in clause 5.5 points users toward ETSI EN 300 019-2-3 for random vibration test severities, which matters because random vibration is often closer to real service than sinusoidal vibration.

Earthquake exposure is treated as a response spectrum problem

Clause 5.6 explains earthquake conditions using a Response Spectrum (RS), Zero Period Acceleration (ZPA), and related seismic parameters. The document states that the actual seismic environment depends on the ground motion, the building, the equipment height, and the supporting structure. For a reader, this means seismic suitability is not only about the equipment itself but also about how and where it is mounted.

What terms does SIST EN 300 019-1-3 V2.1.2:2006 define?

• Absolute humidity - The mass of water vapour in a cubic metre of dry air, used to describe how much moisture is actually present.
• Air conditioning system - A system that automatically controls air temperature and humidity by heating, cooling, humidifying, and dehumidifying.
• Climate-controlling system - Any system that influences climate by acting on at least one climatic parameter in one direction.
• Forced ventilation system - A system that controls climate by bringing in outdoor air or removing indoor air.
• Relative humidity - The ratio of water vapour pressure in moist air to the saturation pressure at the same temperature.
• Stationary use - Equipment firmly mounted or permanently placed at a site, with only short handling periods during erection, downtime, maintenance, and repair.
• Weatherprotected location - A location protected from direct weather influences, either totally enclosed or only partly weatherprotected.

Who uses SIST EN 300 019-1-3 V2.1.2:2006?

SIST EN 300 019-1-3 V2.1.2:2006 is used by people who need to specify or verify the environment around telecommunications equipment. That includes equipment designers, environmental engineers, test laboratories, quality managers, and technical buyers.

It is relevant for telecommunication centres, control rooms, unattended equipment stations, buildings with telecom equipment, shelters, sheds, garages, and similar stationary installations. In practice, these users apply it when choosing an environmental class, checking whether a site matches that class, or deciding what environmental testing and protection are appropriate.

Which standards are used with SIST EN 300 019-1-3 V2.1.2:2006?

Standard	What it contributes
IEC 60721-3-3	Base classification of environmental parameters and severities for stationary use at weatherprotected locations
IEC 60068-2-27	Shock test guidance
IEC 60721-2-6	Earthquake vibration and shock conditions
IEC 60068-3-3	Seismic test methods for equipment
ETSI EN 300 019-2-3	Recommended environmental test severities and test methods for stationary use at weatherprotected locations
IEC 60721-3-0	General introduction to the environmental classification framework
ETSI ETR 035	Guidance and terminology for environmental engineering

The foreword also places this part in the ETSI EN 300 019 series, alongside Part 1-0 through Part 1-8 and Part 2. Those companion parts cover the other usage conditions and the test specification side of the series.

What does the SIST EN 300 019-1-3 V2.1.2:2006 document contain?

The document contains six environmental classes, each described by a class name, a short location description, and a climatogram. It then gives tables for climatic, biological, chemically active, mechanically active, and mechanical conditions, plus a separate seismic treatment in clause 5.6.

It also includes notes that explain special selections such as class 3C1 and the special chemical class 3C3, along with guidance on mean and maximum chemical values. The figures in clauses 4.1 to 4.6 show the climate ranges for each class, while figure 7 and table 7 describe the earthquake response spectrum used in seismic assessment.

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 2.1.2
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.

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 V2.1.2 (2003-04)

Reference
REN/EE-01027-1-3[2]
Keywords
environment, testing, equipment practice
ETSI
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ETSI
3 ETSI EN 300 019-1-3 V2.1.2 (2003-04)
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.15
5.5 Mechanical conditions.16
5.6 Earthquake conditions.16
History .19

ETSI
4 ETSI EN 300 019-1-3 V2.1.2 (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 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 latest announcement of this EN (doa): 31 July 2003
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 31 January 2004
Date of withdrawal of any conflicting National Standard (dow): 31 January 2004

ETSI
5 ETSI EN 300 019-1-3 V2.1.2 (2003-04)
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: Classification of groups of
environmental parameters and their severities - Section 3: 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: "Environmental 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".
[7] ETSI ETR 035: "Equipment Engineering (EE); Environmental engineering Guidance and
terminology".
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
ETSI
6 ETSI EN 300 019-1-3 V2.1.2 (2003-04)
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
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;
ETSI
7 ETSI EN 300 019-1-3 V2.1.2 (2003-04)
- 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.
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.

Normal Conditions
-10
1,5
Exceptional Conditions
-20
0  10  20  30  40  50  60  70  80  90  100
Relative Air Humidity [%]
Val ues outside this field have a probability of occurrence of
less than 10% (see IEC 60721- 3 -0 ). [6]
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/m³]
8 ETSI EN 300 019-1-3 V2.1.2 (2003-04)
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 V2.1.2 (2003-04)
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 d
...