IEC TR 63044-2:2022

Home and Building Electronic Systems (HBES) and Building Automation and Control Systems (BACS) - Part 2: Environmental conditions

IEC TR 63044-2:2022(E) provides the environmental conditions for HBES/BACS devices, when declared in the manufacturer's documentation for use in one or more of the environment classes as defined in Clause 6 of this document.

General Information

• Status: Published
• Publication Date: 24-May-2022
• ICS: 29.120.01 - Electrical accessories in general
• ICS: 29.120.99 - Other electrical accessories
• Technical Committee: TC 23 - Electrical accessories
• Current Stage: PPUB - Publication issued
• Completion Date: 25-May-2022

Standards Content (sample)

IEC TR 63044-2
Edition 1.0 2022-05
TECHNICAL
REPORT
Home and Building Electronic Systems (HBES) and Building Automation and
Control Systems (BACS) –
Part 2: Environmental conditions
IEC TR 63044-2:2022-05(en)
---------------------- Page: 1 ----------------------
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IEC TR 63044-2
Edition 1.0 2022-05
TECHNICAL
REPORT
Home and Building Electronic Systems (HBES) and Building Automation and
Control Systems (BACS) –
Part 2: Environmental conditions
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 29.120.01; 29.120.99 ISBN 978-2-8322-1266-0

Warning! Make sure that you obtained this publication from an authorized distributor.

® Registered trademark of the International Electrotechnical Commission
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– 2 – IEC TR 63044-2:2022  IEC 2022
CONTENTS

FOREWORD ........................................................................................................................... 3

INTRODUCTION ..................................................................................................................... 5

1 Scope .............................................................................................................................. 6

2 Normative references ...................................................................................................... 6

3 Terms and definitions ...................................................................................................... 6

4 General explanation for all tests ...................................................................................... 7

5 Environmental conditions ................................................................................................. 7

5.1 General test conditions ........................................................................................... 7

5.2 General performance criteria................................................................................... 8

6 Environmental conditions ................................................................................................. 9

6.1 Climatic .................................................................................................................. 9

6.2 Chemical............................................................................................................... 10

6.3 Mechanical ........................................................................................................... 11

6.4 Biological .............................................................................................................. 12

Annex A (informative) Sets of environmental class combinations ......................................... 13

A.1 General ................................................................................................................. 13

A.2 Description of the classes ..................................................................................... 13

A.2.1 General ......................................................................................................... 13

A.2.2 Storage.......................................................................................................... 13

A.2.3 Transportation ............................................................................................... 13

A.2.4 Use in weather-protected controlled locations ................................................ 14

A.2.5 Use in weather-protected uncontrolled locations ............................................ 14

A.2.6 Use in non-weather-protected locations ......................................................... 14

A.2.7 Use in locations on ships ............................................................................... 14

A.2.8 Portable and non-stationary use .................................................................... 15

Bibliography .......................................................................................................................... 16

Table 1 – Details of climatic tests............................................................................................ 9

Table 2 – Details of chemical tests........................................................................................ 10

Table 3 – Details of mechanical tests .................................................................................... 11

Table 4 – Details of biological tests ....................................................................................... 12

Table A.1 – Summary of classes ........................................................................................... 13

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IEC TR 63044-2:2022  IEC 2022 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HOME AND BUILDING ELECTRONIC SYSTEMS (HBES)
AND BUILDING AUTOMATION AND CONTROL SYSTEMS (BACS) –
Part 2: Environmental conditions
FOREWORD

1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising

all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international

co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and

in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports,

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Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.

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any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.

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services carried out by independent certification bodies.

6) All users should ensure that they have the latest edition of this publication.

7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and

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8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is

indispensable for the correct application of this publication.

9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent

rights. IEC shall not be held responsible for identifying any or all such patent rights.

IEC TR 63044-2 has been prepared by IEC technical committee 23: Electrical accessories. It is

a Technical Report.
The text of this Technical Report is based on the following documents:
Draft Report on voting
23/983/DTR 23/999/RVDTR

Full information on the voting for its approval can be found in the report on voting indicated in

the above table.
The language used for the development of this Technical Report is English.
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– 4 – IEC TR 63044-2:2022  IEC 2022

This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in

accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available

at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are

described in greater detail at www.iec.ch/standardsdev/publications.

A list of all parts in the IEC 63044 series, published under the general title Home and Building

Electronic Systems (HBES) and Building Automation and Control Systems (BACS), can be

found on the IEC website.

The committee has decided that the contents of this document will remain unchanged until the

stability date indicated on the IEC website under webstore.iec.ch in the data related to the

specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
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IEC TR 63044-2:2022  IEC 2022 – 5 –
INTRODUCTION

The IEC 63044 series deals with developing and testing home and building electronic systems

(HBES) and building automation and control systems (BACS).

The expression HBES/BACS covers any combination of HBES and/or BACS devices including

their separate connected/detachable devices linked together via one or more networks.

This document applies to HBES/BACS devices and defines the environmental conditions in

which these devices are to be used when so declared by the manufacturer.
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– 6 – IEC TR 63044-2:2022  IEC 2022
HOME AND BUILDING ELECTRONIC SYSTEMS (HBES)
AND BUILDING AUTOMATION AND CONTROL SYSTEMS (BACS) –
Part 2: Environmental conditions
1 Scope

This part of IEC 63044 provides the environmental conditions for HBES/BACS devices, when

declared in the manufacturer's documentation for use in one or more of the environment classes

as defined in Clause 6 of this document.
This document focuses on the following environmental conditions:
– climatic environmental conditions,
– chemical environmental conditions,
– mechanical environmental conditions,
– biological environmental conditions.

This document does not supersede the relevant product standard, if any, and applies only in

addition to the relevant products standard when it is referred to in the manufacturer's

documentation. It is intended to support the particular manufacturer's declaration or any

agreement on environmental conditions between customer and manufacturer.

This document is not intended to give guidance on requirements and tests for the drafting of

product standards.

The document provides an overview of environmental conditions for devices operating in

weather-protected and non-weather-protected locations, ship environments, portable use and

also for storage and transport.
2 Normative references
There are no normative references in this document.
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.

ISO and IEC maintain terminological databases for use in standardization at the following

addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
3.1
product documentation
set of documents that may contain any of the following:

– the manufacturer's installation and operations literature which accompanies the product;

– the product information contained in the manufacturer's catalogue and other product

marketing material/information;
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IEC TR 63044-2:2022  IEC 2022 – 7 –

– the description, definitions, product literature and usage as presented in electronic format

on the manufacturer's (or supplier's) website on the World Wide Web/Internet
3.2
weather-protected controlled location

location that is enclosed, and where direct weather influences are totally excluded

Note 1 to entry: In addition, temperature is controlled by heating or cooling to maintain the required conditions,

especially where these are very different from those of the open-air climate. Humidity is not controlled. Vibration and

shock are insignificant. These locations may be in rural and some urban areas with low industrial activities and

moderate traffic. There is no particular risk of biological attack due to mould growth, animals, etc.

EXAMPLES:

– normal living or working areas, for example living rooms, and rooms for general use such as theatres, restaurants,

offices, shops, workshops for electronic assembly and products;
– telecommunication centres;
– storage rooms for valuable and sensitive products.
3.3
weather-protected uncontrolled location

location that is enclosed, but where direct weather influences are not completely excluded

Note 1 to entry: In addition, neither temperature nor humidity is controlled, although heating may be used to raise

low temperatures where there is a large difference between the conditions of this location and those of the open-air-

climate. Vibration is of low significance.
EXAMPLES:

– entrances and staircases of buildings, garages, cellars, and certain workshops;

– buildings in factories and industrial process plants;

– unattended equipment stations, certain telecommunication buildings, ordinary storage;

– rooms for frost-resistant products, farm buildings, etc.
4 General explanation for all tests

The variety and the diversity of the devices within the scope of this document make it difficult

to define precise criteria for the evaluation of the immunity test results.

If, as a result of the application of the tests defined in this document, the device becomes

dangerous or unsafe, the device is deemed to have failed the test.
5 Environmental conditions
5.1 General test conditions

The HBES/BACS devices are designed for use in one or more of the environment classes

according to the classification in the IEC 60721-3 series as indicated in Table 1 to Table 4.

All test procedures are described in the IEC 60068 series.

Environmental tests are applied in accordance with the test method in the relevant basic

standard of the IEC 60068 series. In addition the following applies:

– the device is in operation during all tests except those for storage and transportation;

– the tests are carried out in the least favourable operating mode;

– it is not always possible to test every function of the devices, and in such cases the most

onerous mode of operation is selected;

– the tests are carried out as single tests in sequence. The sequence of testing is optional;

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– 8 – IEC TR 63044-2:2022  IEC 2022

– the description of the test, the test method and the test set-up are given in basic standards

(IEC 60068-x-x) which are referred to in Table 1 to Table 4;

– the content of these basic standards is not repeated here. However, details of modifications

and other information needed for the practical application of the tests are given in this

document.

Annex A provides a description of the environmental classes and a summary of sets of

environmental classes.
5.2 General performance criteria

A functional description and a definition of performance criteria, during or as a consequence of

environmental testing, are provided by the manufacturer and noted in the test report, based on

the following criteria:

• changes in stored data, such as communication error logs, and which are not directly related

to the intended function of the equipment may be ignored;

• in addition, the device continues to operate according to its product documentation as

intended during and after the test. No unintended change of state, unintended loss of stored

data, unintended function or los
...