oSIST prEN IEC 62286-6-401:2023

SLOVENSKI STANDARD
oSIST prEN IEC 62286-6-401:2023
01-julij-2023
Tehnologije gorivnih celic - 6-401. del: Elektroenergetski sistemi z mikro gorivnimi
celicami - Izmenljivost moči in podatkov - Preskusne metode delovanja prenosnih
računalnikov
Fuel cell technologies - Part 6-401: Micro fuel cell power systems - Power and data
interchangeability - Performance test methods for laptop computers
Ta slovenski standard je istoveten z: prEN IEC 62282-6-401:2023
ICS:
27.070 Gorilne celice Fuel cells
oSIST prEN IEC 62286-6-401:2023 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN IEC 62286-6-401:2023

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oSIST prEN IEC 62286-6-401:2023
105/982/CDV

COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 62282-6-401 ED1
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2023-05-26 2023-08-18
SUPERSEDES DOCUMENTS:
105/902/CDV, 105/981/RVC

IEC TC 105 : FUEL CELL TECHNOLOGIES
SECRETARIAT: SECRETARY:
Germany Mr David Urmann
OF INTEREST TO THE FOLLOWING COMMITTEES: PROPOSED HORIZONTAL STANDARD:

TA 19
Other TC/SCs are requested to indicate their interest, if any, in this
CDV to the secretary.
FUNCTIONS CONCERNED:
EMC ENVIRONMENT QUALITY ASSURANCE SAFETY
SUBMITTED FOR CENELEC PARALLEL VOTING NOT SUBMITTED FOR CENELEC PARALLEL VOTING
Attention IEC-CENELEC parallel voting
The attention of IEC National Committees, members of CENELEC,
Vote (CDV) is
is drawn to the fact that this Committee Draft for
submitted for parallel voting.
The CENELEC members are invited to vote through the CENELEC
online voting system.

This document is still under study and subject to change. It should not be used for reference purposes.
Recipients of this document are invited to submit, with their comments, notification of any relevant patent rights of which they are aware
and to provide supporting documentation.
Recipients of this document are invited to submit, with their comments, notification of any relevant “In Some Countries” clauses to be
included should this proposal proceed. Recipients are reminded that the CDV stage is the final stage for submitting ISC clauses. (SEE
AC/22/2007 OR NEW GUIDANCE DOC).

TITLE:
Fuel cell technologies – Part 6-401: Micro fuel cell power systems – Power and data interchangeability –
Performance test methods for laptop computers

PROPOSED STABILITY DATE: 2026

NOTE FROM TC/SC OFFICERS:


Copyright © 2023 International Electrotechnical Commission, IEC. All rights reserved. It is permitted to download this
electronic file, to make a copy and to print out the content for the sole purpose of preparing National Committee positions.
You may not copy or "mirror" the file or printed version of the document, or any part of it, for any other purpose without
permission in writing from IEC.

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CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 7
3 Terms, definitions and abbreviations . 7
3.1 Terms and definitions . 7
3.2 Abbreviations . Error! Bookmark not defined.
4 General principles for measurements. 9
4.1 Test environments . 9
4.2 Measurement accuracy . 9
4.3 Measuring instruments . 10
4.3.1 General . 10
4.3.2 Power range . 10
4.3.3 DC output voltage . 10
4.3.4 DC output current . 11
4.4 Measurement points . 11
4.5 Construction and actuation requirment against fire and electric shock . 12
5 Composed construction of power interface . 12
5.1 Configulation of fuel cell/battery hybrid system . 12
5.1.1 General . Error! Bookmark not defined.
5.2 DC output connector . 12
5.2.1 DC output plugs . 12
5.2.2 Plug polarity notation . 13
5.2.3 Shape and dimensions of the direct current output jack . 13
5.3 Power limiting device . Error! Bookmark not defined.
6 Test requirements . 13
6.1 Test preparation. 13
6.1.1 General . 13
6.1.2 Measurement system analysis . 14
6.1.3 Data acquisition plan . 14
6.2 Electric power output test . 14
6.2.1 General . 14
6.2.2 Test method . 14
6.2.3 Calculation of average electric power output . 14
6.2.4 Determination of state of charge of the battery . 14
6.2.5 Computation of electrical efficiency . 15
6.3 DC power regulation . 15
6.4 DC output load condition . 15
6.5 DC output ripple and noise . 15
6.6 Output transient response and capacitor load . Error! Bookmark not defined.
6.7 Power unit timing . Error! Bookmark not defined.
6.7.1 Turn on delay time . Error! Bookmark not defined.
6.8 Type test on operational performance . 15
6.8.1 Cold start maximum power output test . 15
6.8.2 Power cycling electrical load test . 16
6.8.3 Electric demand-following test . 16
7 Test reports . 16

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7.1 General . 16
7.2 Title page . 17
7.3 Table of contents . 17
7.4 Summary report . 17
Annex A (informative) Guidelines for the contents of detailed and full reports . 18
A.1 General . 18
A.2 Detailed report . 18
A.3 Full report . 18
Bibliography . 19

Figure 1 – Micro fuel cell power systems block diagram . 7
Figure 2 – Schematic diagram of Fuel cell/electronic devices with battery for hybrid
system . 12
Figure 3 – Power connector of micro fuel cell power system as AC adapter . 12
Figure 4 – Connector for power supply of micro fuel cell power system for power
supply . 13

Table 1 – Power Range . 10
Table 2 – DC output power load condition . 15

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INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________

FUEL CELL TECHNOLOGIES –

Part 6-401: Micro fuel cell power systems –
Power and data interchangeability –
Performance test methods for laptop computer

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,
Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their
preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with
may participate in this preparatory work. International, governmental and non-governmental organizations liaising
with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for
Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence between
any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
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
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
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 62282-6-401 has been prepared by IEC technical committee 105: Fuel cell technologies. It
is an International Standard.
The text of this International Standard is based on the following documents:
Draft Report on voting
105/XX/FDIS 105/XX/RVD

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 International Standard is English.
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

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IEC CDV 62282-6-401 © IEC 2023 – 5 –
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/publications.
A list of all parts of IEC 62282 series, published under the general title Full cell technologies,
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.

IMPORTANT – The "colour inside" logo on the cover page of this document 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.

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1 FUEL CELL TECHNOLOGIES –
2
3 Part 6-401: Micro fuel cell power systems –
4 Power and data Interchangeability –
5 Performance test methods for laptop computer
6
7
8
9 1 Scope
10 This part of IEC 62282 covers the requirements for the performance test methods of a micro
11 fuel cell/battery power system, consisting of a fuel cell system with secondary battery for laptop
12 computers.
13 For this purpose, this document covers electrical performance test for the fuel cell/battery hybrid
14 system. This document also covers performance test methods which focus on the power and
15 data interchangeability with the micro fuel cell power system and laptop computer and other
16 characteristics for BOP (balance of plant) installed for laptop computer applications with fuel
17 cell/battery hybrid system. This document applies to gaseous hydrogen-fuelled fuel cell power,
18 liquid hydrogen-fuelled fuel cell power, direct methanol fuel cell power, and battery hybrid power
19 pack systems.
20 The following fuels are considered within the scope of this document:
21 – gaseous hydrogen;
22 – liquid hydrogen compounds
23 – methanol.
24 This document does not apply to reformer-equipped fuel cell power systems.
25 A block diagram of micro fuel cell power system is shown in Figure 1. This document covers
26 configuration, the mode of hybridization and operation modes for fuel cell/battery power
27 systems.

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28
29 Figure 1 – Micro fuel cell power system block diagram
30 2 Normative references
31 The following documents are referred to in the text in such a way that some or all of their content
32 constitutes requirements of this document. For dated references, only the edition cited applies.
33 For undated references, the latest edition of the referenced document (including any
34 amendments) applies.
35 IEC 60050-485, International Electrotechnical Vocabulary (IEV) – Part 485: Fuel cell
36 technologies, available at www.electropedia.org
37 IEC 62282-4-101, Fuel cell technologies – Part 4-101: Fuel cell power systems for propulsion
38 other than road vehicles and auxiliary power units (APU) – Safety of electrically powered
39 industrial trucks
40 IEC 61204, Low-voltage power supply devices, d.c. output – Performance characteristics
41 3 Terms, definitions and abbreviations
42 3.1 Terms and definitions
43 For the purposes of this document, the terms and definitions given IEC 60050-485 and the
44 following apply.
45 ISO and IEC maintain terminology databases for use in standardization at the following
46 addresses:
47 • IEC Electropedia: available at https://www.electropedia.org/
48 • ISO Online browsing platform: available at https://www.iso.org/obp
49 3.1.1
50 fuel cell/battery hybrid system
51 fuel cell power system combined with a battery, for delivering useful electric power
52 Note 1 to entry: The fuel cell power system can deliver electric power, charge the battery, or both. The system can
53 deliver and accept electric energy.

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54 [SOURCE: IEC 60050-485:2020, 485-09-18]
55 3.1.2
56 fuel cell power system
57 generator system that uses one or more fuel cell modules (IEV 485-09-03) to generate electric
58 power and heat
59 [SOURCE: IEC 60050-485:2020, 485-09-01]
60 3.1.3
61 micro fuel cell power system
62 micro fuel cell power unit and associated fuel cartridges that is wearable or easily carried out
63 by hand
64 [SOURCE: IEC 60050-485:2020, 485-09-21]
65 3.1.4
66 DC output voltage
67 voltage between the output terminals under operating conditions
68 Note 1 to entry: The output voltage is expressed in V.
69 [SOURCE: IEC 60050-485-13-03]
70 3.1.5
71 DC output current
72 output current that can be continuously supplied to the load side
73 3.1.6
74 DC output power
75 output that can be continuously supplied to the load side, expressed as the product of output
76 voltage and output current
77 3.1.7
78 DC output plug
79 accessory having pins designed to engage with the contacts of a socket-outlet, also
80 incorporating 9means for the electrical connection and mechanical retention of flexible cables
81 or cords
82 [SOURCE: IEC 60050-442-03-01]
83 3.1.8
84 secondary battery
85 secondary cell
86 cell which is designed to be electrically recharged
87 Note 1 to entry: The recharge is accomplished by way of a reversible chemical reaction.
88 Secondary batteries can be based on lithium-ion, meta-air, lead acid or nickel-metal hydride chemistries,
89 rechargeable by the fuel cell system or external power.
90 [SOURCE: IEC 60050-482:2004, 482-01-03, modified – The words "secondary battery" have
91 been added as a term.]
92 3.1.9
93 active hybrid system
94 hybrid system equipped with a DC/DC converter between the fuel cell and the battery, adjusting
95 the voltage of each power source to the bus voltage and managing the power sharing between
96 each power source
97 3.1.10
98 state of charge
99 available capacity in a battery pack or system expressed as a percentage of rated capacity

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100 3.1.11
101 rated power
102 maximum continuous electric power output that a fuel cell power system is designed to achieve under
103 normal operating conditions specified by the manufacturer
104 3.1.12
105 balance of plant(BOP)
106 supporting and auxiliary components based on the power source or site-specific requirements and
107 integrated into a comprehensive fuel cell power system
108
109
110 3.2 Abbreviated terms
111 BOP balance of plant
112 SOC state of charge
113 4 General principles for measurements
114 4.1 Test environments
115 The controlled ambient test conditions shall be as follows:
116 – temperature: 25 °C ± 5 °C;
117 – humidity:  65 % ± 20 % relative humidity;
118 – pressure:  between 91 kPa (abs) and 106 kPa (abs).
119 For each test run, the laboratory conditions shall be measured. As air quality may affect fuel
120 cell power system performance, laboratory air composition (CO , CO, SO and so forth) shall
2 2
121 be reported with the test result.
122 4.2 Measurement accuracy
123 The measurement parameters and minimum measurement accuracies shall be as follows:
124 – voltage: ±1 %;
125 – current: ±1 %;
126 – time: ±1 %;
127 – weight: ±1 %;
128 – temperature: ±2 °C;
129 – humidity: ±5
130 – pressure: ±5 %;
131 – vibration frequency: ±1 Hz (5 Hz < frequency ≤ 50 Hz) or  ±2 % (frequency > 50 Hz);
132 – volume: ±2 %.
133
134 Test equipment should be chosen in a way that the systematic uncertainty of measurement for
135 electrical efficiency is below ±1 % system except ±5 of relative humidity for electrical efficiency.
136 In order to reach the desired efficiency uncertainties, the following systematic measurement
137 uncertainties of the equipment are recommended. They are given in percentage of
138 measured/calculated values or as absolute values for temperature:
139 – fuel gas flow rate: ±1 %;

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140 – integrated gas flow: ±1 %;
141 – liquid flow rate: ±1 %;
142 – mass: ±1 % of the mass to be determined (not including the tare weight);
143 – relative humidity: ±5 %;
144 – absolute pressure: ±1 %;
145 – fuel gas and discharge water temperature: ±1 K;
146 4.3 Measuring instruments
147 4.3.1 General
148 Measurement instruments and measurement methods shall conform to the relevant
149 international standards. They shall be selected to meet the measurement range specified by
150 the manufacturer and the required accuracy of measurements.
151 [SOURCE: IEC 62282-3-200, clausen7.2]
152 Measuring instruments are listed according to their intended use:
153 a) apparatus for measuring the electric power output, electric power input, electric energy
154 input, and electric energy output:
155 – electric power meters, electric energy meters, voltmeters, ammeters;
156 b) apparatus for measuring fuel input: flowmeters, integrating flowmeters, scales, pressure
157 sensors, temperature sensors;
158 c) apparatus for measuring ambient conditions: barometers, hygrometers, and temperature
159 sensors;
160 d) apparatus for measuring the noise level: sound level meters as specified in IEC 61672-1 or
161 other measuring instruments of equivalent or better accuracy;
162 e) apparatus for measuring volume fractions (concentrations) of the exhaust gas components:
163 – oxygen analyser (e.g. based on paramagnetic, electrochemical or zirconium oxide
164 sensors);
165 – carbon dioxide analyser (e.g. GC-MS or based on infrared absorption sensor);
166 – carbon monoxide analyser (e.g. based on nondispersive infrared or electrochemical
167 sensor);
168 – THC analyser (e.g. a flame ionizer detector (FID));
169 f) apparatus for determining the discharge water: graduated cylinder (for volume
170 measurement), water trap, temperature sensor, pH meters, BOD probes.
171 g) 'mass spectrometry' for each gas (oxygen, carbon dioxide, carbon monoxide).
172 NOTE BOD means biochemical oxygen demand, and THC is total hydrocarbon.
173 4.3.2 Power range
174 The DC Power aid for laptop computers consist of power transmission and power receiving, and
175 rated transmit power and rated power with the following rated values:
176 Table 1 – Power range
Classification Rated output power
40 to 330 W
Rated supplying transmission power
Range
Rated receiving power 0 to 50 W
177
178 4.3.3 DC output voltage
179 Under most used system configurations, the voltage of the battery used by the micro fuel cell
180 system is the same as the DC output voltage for powering the laptop.

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181 4.3.4 DC output current
182 The current DC output current of the micro fuel cell system for laptop computer is as follows.
183 4.4 Measurement points
184 Measurement points for different parameters, which are described below, shall be according to
185 IEC 62282-4-101 and IEC 60945.
186 a) Hydrogen fuel flow rate
187 Place a mass flowmeter for fuel on the fuel supply line to the fuel cell power system to
188 measure the fuel flow rate and total fuel input.
189 b) Methanol fuel flow rate
190 Place a mass flow meter or weight meter under the fuel tank to measure the weight of fuel
191 and tank together. Methanol fuel input weight is measured by subtracting the weight after
192 the test from that before the test.
193 c) Fuel temperature
194 Connect a thermometer immediately downstream of the fuel flowmeter.
195 d) Fuel pressure
196 Place a pressure meter immediately downstream of the fuel flowmeter to measure the gauge
197 pressure of fuel.
198 e) Electric power output
199 Connect an electric power meter to the electric power output terminal of the fuel cell/battery
200 hybrid system and close to the system boundary.
201 f) Electric power input
202 Connect an electric power meter to the electric power input terminal of the fuel cell/battery
203 hybrid system and close to the system boundary. In case no separate electric power input
204 terminal is existing, this measuring point can be substituted with the electric power output
205 with a bidirectional meter.
206 g) Electric energy output
207 Connect an electric energy meter to the electric power output terminal of the fuel cell/battery
208 hybrid system and close to the system boundary. The electric energy meter may incorporate
209 an electric power meter that indicates electric power output.
210 h) Fuel composition
211 Place measuring probe to downstream of hydrogen compound cartridge or methanol
212 cartridge. The fuel composition data shall reported before refuelling with hydrogen
213 compound cartridge or methanol cartridge.
214 i) Atmospheric pressure
215 Place an absolute pressure meter adjacent to the fuel cell power system where it will not be
216 affected by ventilation of the fuel cell power system.
217 j) Atmospheric temperature
218 Place a thermometer adjacent to the fuel cell power system where the thermometer will not
219 be affected by air intake or exhaust of the fuel cell power system.
220 k) Atmospheric humidity
221 Place a hygrometer adjacent to the fuel cell power system where the hygrometer will not be
222 affected by air intake or exhaust of the fuel cell power system.
223 l) Exhaust gas
224 Place one or more exhaust gas collecting probes combined with a temperature sensor in
225 the exhaust stream at the exhaust gas outlet; see Figure 1.
226 m) Discharge water
227 Place a discharge water reservoir combined with a temperature sensor at the discharge
228 water outlet; see Figure 1.

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229 4.5 Construction and actuation requirement against fire and electric shock
230 The specifications asked against electric shock, fires and other hazards and other risks should
231 be better explained and/or referenced to other documents.
232 [SOURCE IEC 60730-2-14]
233 5 Composed construction of power interface
234 5.1 Configuration of fuel cell/battery hybrid system
235 The performance of the micro-fuel cell system for laptop computers shall satisfy the
236 requirements listed below and the power compatibility of the micro fuel cells shall satisfy the
237 standard of an external DC power supply for laptop computers as shown in Fig. 2.
238 [SOURCE: IEC 62282-6-400]
239
240 Figure 2 – Schemat
...