IEC 62952-1:2016

Power sources for a wireless communication device - Part 1: General requirements of power modules

IEC 62952-1:2016 specifies the general requirements of power modules for wireless communication devices (WCD). This document includes additional optional specifications to permit use in explosive atmospheres and harsh environments. This International Standard is based on VDI/VDE 2185 Blatt 3.

Sources d'énergie pour un appareil de communication sans fil - Partie 1: Exigences générales relatives aux modules d'alimentation

L'IEC 62952-1:2016 spécifie les exigences générales relatives aux modules d'alimentation pour les appareils de communication sans fil (WCD). Cette IS inclut des spécifications facultatives supplémentaires permettant l'utilisation dans les atmosphères explosives et les environnements défavorables. La présente Norme internationale est basée sur la norme VDI/VDE 2185 Blatt 3.

General Information

• Status: Published
• Publication Date: 04-Oct-2016
• ICS: 29.220.10 - Primary cells and batteries
• ICS: 33.040.40 - Data communication networks
• Technical Committee: SC 65B - Measurement and control devices
• Drafting Committee: WG 16 - TC 65/SC 65B/WG 16
• Current Stage: PPUB - Publication issued
• Start Date: 31-Oct-2016
• Completion Date: 05-Oct-2016

Standards Content (Sample)

IEC 62952-1 ®
Edition 1.0 2016-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Power sources for a wireless communication device –
Part 1: General requirements of power modules

Sources d’énergie pour un appareil de communication sans fil –
Partie 1: Exigences générales relatives aux modules d'alimentation

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IEC 62952-1 ®
Edition 1.0 2016-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Power sources for a wireless communication device –

Part 1: General requirements of power modules

Sources d’énergie pour un appareil de communication sans fil –

Partie 1: Exigences générales relatives aux modules d'alimentation

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.220.10; 33.040.40 ISBN 978-2-8322-3638-3

– 2 – IEC 62952-1:2016  IEC 2016
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references. 6
3 Terms, definitions, abbreviated terms, acronyms and conventions . 7
3.1 Terms and definitions . 7
3.2 Abbreviated terms and acronyms . 7
3.3 Convention for capitalizations . 8
4 General requirements . 8
4.1 General . 8
4.2 Compliance . 9
4.3 Design . 10
4.4 Logistics . 10
4.4.1 Storage and marking . 10
4.4.2 Maintenance . 10
4.4.3 Transportation in a plant . 10
4.4.4 Disposal . 10
4.5 Protection for explosive atmospheres . 10
4.5.1 General . 10
4.5.2 Transportation and replacement . 10
4.5.3 Battery requirements . 11
4.5.4 Temperature . 11
4.5.5 Air pressure . 11
4.6 Harsh environment . 11
4.6.1 General . 11
4.6.2 Vibration and shock . 11
4.6.3 Humidity . 11
4.6.4 Temperature . 12
4.6.5 Corrosive environment . 12
4.6.6 Air pressure . 12
4.7 Interchangeability . 12
4.7.1 General . 12
4.7.2 Electrical interface . 12
4.7.3 Mechanical interface . 13
4.8 Electrical parameters . 13
Bibliography . 14

Figure 1 – Various power sources applicable for a wireless communication device . 8

Table 1 ‒ Example of an implementation conformance statement . 9

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
POWER SOURCES FOR A WIRELESS COMMUNICATION DEVICE –

Part 1: General requirements of power modules

FOREWORD
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patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 62952-1 has been prepared by subcommittee 65B: Measurement
and control devices, of IEC technical committee 65: Industrial-process measurement, control
and automation.
This International Standard is based on VDI/VDE 2185 Blatt 3.
The text of this standard is based on the following documents:
FDIS Report on voting
65B/1053/FDIS 65B/1056/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
A list of all parts of the IEC 62952 series, published under the general title Power source for a
wireless communication device, can be found on the IEC website.

– 4 – IEC 62952-1:2016  IEC 2016
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
The committee has decided that the contents of this publication will remain unchanged until
the stability date indicated on the IEC web site under "http://webstore.iec.ch" in the data
related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct
understanding of its contents. Users should therefore print this document using a
colour printer.
INTRODUCTION
Industrial wireless communication network devices like a pressure transmitter or a valve
positioner are mostly using non-copper-cable power sources. These devices are using a
power module for their power source that can contain a battery and / or an energy harvesting
element. In order to increase usability, power source of wireless sensors and actuators
require a standardized interface and harmonized requirements.
This part of IEC 62952 specifies interface and specification of power source of wireless
devices and does not specify the mechanical interface within a wireless communication
device and the power source. Additionally, energy harvesting is a key technology for power
source of wireless devices. This document also specifies interface and specification of energy
harvesting devices.
This document addresses the general requirements of power sources for wireless
communication devices.
– 6 – IEC 62952-1:2016  IEC 2016
POWER SOURCES FOR A WIRELESS COMMUNICATION DEVICE –

Part 1: General requirements of power modules

1 Scope
This part of IEC 62952 specifies the general requirements of power modules for wireless
communication devices (WCD). This document includes additional optional specifications to
permit use in explosive atmospheres and harsh environments.
This document specifies the usability over the life-cycle of a power module including replacing
in explosive atmosphere.Unreplaceable batteries such as memory backup are out of the
scope of this standard.
Secondary batteries or power modules are covered by this document, but method of its power
charging is out of scope.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their
content constitutes requirements of this document. For dated references, only the edition
cited applies. For undated references, the latest edition of the referenced document (including
any amendments) applies.
IEC 60079-0:2011, Explosive atmospheres – Part 0: Equipment – General requirements
IEC 60079-11:2011, Explosive atmospheres – Part 11: Equipment protection by intrinsic
safety "i"
IEC 60086-1, Primary batteries – Part 1: General
IEC 60654-3, Operating conditions for industrial-process measurement and control
equipment – Part 3: Mechanical influences
IEC 60721-3-4:1995, Classification of environmental conditions – Part 3: Classification of
groups of environmental parameters and their severities – Section 4: Stationary use at non-
weatherprotected locations
IEC 61326 (all parts), Electrical equipment for measurement, control and laboratory use –
EMC requirements
IEC 62952-2:2016, Power sources for a wireless communication device – Part-2: Profile for
power modules with batteries
IEC 62952-3: — , Power sources for a wireless communication device – Part-3: Generic
energy harvesting adapter module
______________
Under preparation. Stage at the time of publication: IEC/CDV:2016.

3 Terms, definitions, abbreviated terms, acronyms and conventions
3.1 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
3.1.1
battery
one or more cells electrically connected by permanent means, fitted in a case, with terminals,
markings and protective devices etc., as necessary for use
[SOURCE: IEC 60086-1:2015, 3.2, modified – Addition of "by permanent means".]
3.1.2
power module
stand-alone power supply element
3.1.3
power source
mechanical unit with electrical interface in order to provide power for a wireless
communication device
Note 1 to entry: A power source can contain a power module or a line powered module.
3.1.4
primary battery
battery that is not designed to be electrically recharged
[SOURCE: IEC 60086-1:2015, 3.9, modified]
3.1.5
secondary battery
battery that is designed to be electrically recharged
Note 1 to entry: The recharge is accomplished by way of a reversible chemical reaction.
[SOURCE: IEC 60050-482:2004, 482-01-03, modified – Replacement of "cell" by the term
"battery".]
3.1.6
wireless communication
communication in which electromagnetic radiations are used to transfer information without
the use of wires or optical fibers
3.2 Abbreviated terms and acronyms
For the purposes of this document, the following abbreviated terms and acronyms apply.
GEHAM Generic energy harvesting adapter module
WCD Wireless communication device

– 8 – IEC 62952-1:2016  IEC 2016
3.3 Convention for capitalizations
Capitalized terms are either based on the rules given in the ISO/IEC Directives Part 2 or
emphasize that these terms have a specific meaning throughout this series of IEC 62952.
4 General requirements
4.1 General
A WCD contains typically a sensor or an actuator or communication routing capability with a
wireless interface for example according to IEC 62601, IEC 62591, or IEC 62734. The WCD is
powered by replaceable batteries or power modules.
Figure 1 shows the possible various types of power modules that can be used as a power
source within a wireless communication device and that are specified in this series of
IEC 62952.
This document does not address the safety, fire and regulatory requirements typically
imposed on batteries and other power sources.
Power Module
Type A
Primary
or
Secondary
Alternatives
Battery
Wireless Communication Device
Power Module
Power Source
Type B
Power Module
Primary Type A,
or
Power Module
Secondary
Type B
Battery
or
Primary
GEHAM
or
Secondary
Battery
Power Module Type C
Generic Energy
Harvesting
Adapter Module
(GEHAM)
Primary or
Secondary
Battery
(Backup)
External Energy
Harvester
Power
(wired to GEHAM)
Management
IEC
Figure 1 – Various power sources applicable for a wireless communication device
NOTE The IEC 62952 series does not describe the mechanical interface within a wireless communication device
and the power source as it could be interpreted by Figure 1. The red colored elements in Figure 1 are the subject
of this IEC 62952 series and might not have identical dimension.

The Power Modules Type A, Type B and Type C are the internal energy source for the WCD.
The Power Modules Type A and Type B shall provide the capability that only batteries with
identical electro-mechanical parameters, as specified in IEC 62952-2, can be used.
IEC 62952-3 specifies requirements and profiles of Power Module Type C.”
A power module shall
• be a primary or secondary battery (Type A);
• be a mechanical unit that contains primary or secondary batteries (Type B);
• consist of generic external energy harvesting adapter module (GEHAM) and external
energy harvester (Type C).
4.2 Compliance
Claims of compliance shall clearly indicate compliance to the complete part or a subset of a
part of the IEC 62952. Part 2 and Part 3 of IEC 62952 provide tables that allow the vendor to
claim assertion of compliance to a specific clause or subclause of Part 1.
The vendor shall make an explicit claim in the conformance statement table if intrinsic safety
is supported.
An example of an Implementation conformance statement of a vendor is given in Table 1.
The conformance tables produced by the vendor shall be a copy of the conformance table
provided in the relevant profile document (for example IEC 62952-2), with the column
“Assertion” added and filled in with the description of what is implemented. This filled table
should be part of the product documentation if a claim of compliance to the referenced profile
document (for example IEC 62952-2) is made.
Table 1 ‒ Example of an implementation conformance statement
(Sub-) Header Presence Constraints Assertion
Clause
1 Scope YES Does not contain —
requirements
2 Normative references Partial — IEC 62952-3 does not
apply
3 Terms, definitions, abbreviated YES Does not contain —
terms, acronyms and requirements
conventions
4 General requirements — — —
4.1–4.4.4 — YES — —
4.5 Protection for explosive Partial — Supports Zone 1
atmospheres
4.6 Harsh environment — — —
4.6.1 General YES — —
4.6.2 Vibration and shock YES — Supports the full range
4.6.3 Humidity NO — Not supported.
4.6.4 Temperature Partial — Supports the range 10 °C
to 30 °C
4.6.5 Corrosive environment YES — Supports the full range
4.6.6 Air pressure YES — Supports the full range
4.7 Interchangeability YES —
4.8 Electrical parameters YES — —

– 10 – IEC 62952-1:2016  IEC 2016
4.3 Design
For the conceptual design of the power modules the following points shall apply.
• Anti slip-, grip-surfaces;
• Wear less or non-wearing materials for brackets and other stressed components;
• Resistant materials against material fatigue;
• Low proper weight or self-weight;
• Electrolyte emission prevention;
• Single handed use/handling (transportation and exchange including handling of the locking
device).
4.4 Logistics
4.4.1 Storage and marking
The storage conditions and marking of batteries shall be according to IEC 60086-1 (Primary
batteries), or relevant secondary battery standards.
The end user shall establish an appropriate process to handle the batteries in the power
modules. This includes the marking process of the power modules during the maintenance
process if the batteries are exchangeable.
4.4.2 Maintenance
For an easy maintenance of the power modules the following points shall apply.
• Simple assembly or disassembly under hindered/harsh conditions (darkness and badly
accessible control/ metering points);
• Exchangeability and battery handling with the use of gloves;
• No use of special tools for the entire battery exchange;
• Marking, see 4.4.1;
• Exchangeability in rain and snow;
• For an on-site inspection of the power module, a mechanism for direct measurement of
capacity or voltage shall be provided.
4.4.3 Transportation in a plant
Measures shall ensure the protection of the device from electro static discharges and short
circuits. The requirements in IEC 60086-1 about transport shall apply.
4.4.4 Disposal
It shall be easy to separate the battery from power modules without a special tool for handling
and to recycle the battery. The design should promote the ability to recycle and properly
dispose of the battery.
4.5 Protection for explosive atmospheres
4.5.1 General
Products claiming compliance for use in hazardous areas shall comply with all of the
requirements of 4.5 dependent on the selected Zone.
4.5.2 Transportation and replacement
The power module shall be according to IEC 60079-0 and IEC 60079-11:

– EPL Ga, Gb, Gc, Da, Db, or Dc as appropriate; and
– intrinsically safe, transportable and replaceable in hazardous areas.
Especially for the transportation of multiple batteries and multiple power modules the
requirements for explosion protection shall be fulfilled. For this purpose concepts shall be
defined (for example no open connections).
4.5.3 Battery requirements
IEC 60079-0:2011, Clause 23 applies and describes general requirements of batteries.
IEC 60079-11:2011, 7.4 applies and describes the requirements for intrinsically safe batteries.
IEC 60079-11:2011, 7.4 applies and is the main reference for the power module requirements.
4.5.4 Temperature
The allowed ambient temperature may be limited when using the power module in hazardous
areas due to maximum allowed surface temperature of devices according to
IEC 60079-0:2011, 5.3.2.2. The following requirements could also apply.
– The power supply module shall be classified as T4 at ambient temperature of 60 ºC at
least, in accordance with IEC 60079-0 and IEC 60079-11.
4.5.5 Air pressure
The standard atmospheric condition shall be according to IEC 60079-0, that specifies 80 kPa
to 110 kPa.
4.6 Harsh environment
4.6.1 General
The wireless communication device, which includes the power module, may be operating in a
variety of harsh environmental conditions including extreme ranges of vibration, shock,
humidity, temperature, corrosive and air pressure.
For the evaluation of the required environmental conditions the test shall be done with a
power module operating in a wireless communication device.
That does mean that all devices operating with a power module shall fulfill these conditions.
Compliance to 4.6 can be claimed to one or multiple subclauses of 4.6.
4.6.2 Vibration and shock
The power module (and its connections) shall withstand vibration and shock according to
specification of WCD. Device supplier shall assert compliant classes of vibration of
IEC 60654-3 at product documentation with the compliance statement.
4.6.3 Humidity
The power module shall be usable in humid environment in accordance with
IEC 60721-3-4:1995, Table 1, climate class 4K4H with the following range of humity.
• Relative Humidity: 4 % – 100 %, non-condensing
3 3
• Absolute Humidity: 0,9 g/m – 36 g/m

– 12 – IEC 62952-1:2016  IEC 2016
4.6.4 Temperature
IEC 60721-3-4:1995, Table 1, class 4K4H defines a temperature range of -20 °C to +50 °C,
but this is not sufficient for the majority of process applications. Therefore, the power module
shall be usable in following ambient temperatures:
• ambient temperature range -40 °C to +85 °C;
• rate of temperature change: 0,5 °C / min.
See 4.5.4 for the temperature in the explosive atmospheres.
4.6.5 Corrosive environment
The power module and the electrical contacts shall withstand corrosive atmosphere class 4C4
according to IEC 60721-3-4:1995, Table 4. Following chemicals are listed:
• Sea Salt: Salt Mist
3 3
• Sulphur Dioxide: Mean: 13 mg/m , Peak: 40 mg/m
3 3
• Hydrogen Sulphide: Mean: 4 mg/m , Peak: 70 mg/m
3 3
• Chlorine: Mean: 0,6 mg/m , Peak: 3,0 mg/m
3 3
• Hydrogen Chloride: Mean: 1,0 mg/m , Peak: 5 mg/m
3 3
• Hydrogen Fluoride: Mean: 0,1 mg/m , Peak: 2,0 mg/m
3 3
• Ammonia: Mean: 35 mg/m , Peak: 175 mg/m
3 3
• Ozone: Mean: 0,2 mg/m , Peak: 2,0 mg/m
3 3
• Nitrogen Oxides: Mean: 10 mg/m , Peak: 20 mg/m
The vendor is allowed to provide a tight enclosure to protect the contacts from the corrosive
atmosphere.
4.6.6 Air pressure
The power module shall be usable in environments with air pressure according to
IEC 60721-3-4:1995, Table 1. The following requirement could also apply.
70 kPa to 106 kPa
NOTE 1 70 kPa refers to an altitude of approximately 3 000 m.
NOTE 2 As for explosive atmospheres, IEC 60079-0 specifies 80 kPa to 110 kPa as a standard atmospheric
condition.
4.7 Interchangeability
4.7.1 General
The power module Type A or the batteries in the power module Type B respectively should be
interchangeable dependent of the WCD vendor product family. The number of types of power
module Type A or batteries in the power module Type B respectively in terms of size and
capacity should be as low as possible. The use of standardized components such as batteries
specified in IEC 60086-2 or coequal secondary batteries should be selected. The electrical
and mechanical interfaces shall be according to 4.7.2 and 4.7.3.
GEHAM should be interchangeable with the Power Modules Type A, and Type B within
particular WCD vendor. The types of GEHAMs with respect to size and electrical power shall
match the power modules according to 4.7.2 and 4.7.3.
4.7.2 Electrical interface
The electrical interface depends on the selected power module vendor.

Measure shall be incorporated to ensure the correct connection of the power module, for
example polarization.
Measure shall be incorporated to ensure protection from reverse voltage.
4.7.3 Mechanical interface
The mechanical interface depends on the selected power module vendor.
Measure shall be incorporated to e
...