ISO 8820-8:2019
(Main)Road vehicles — Fuse-links — Part 8: Fuse-links with bolt-in contacts (Type H and J) with rated voltage of 450 V
Road vehicles — Fuse-links — Part 8: Fuse-links with bolt-in contacts (Type H and J) with rated voltage of 450 V
This document specifies fuse-links with bolt-in contacts (Type H and J) and test fixtures for the fuse-links for use in road vehicles. It establishes, for these fuse-link types, the rated current, test procedures, performance requirements and dimensions. This document is applicable to fuse-links with a rated voltage of 450 V DC, a current rating of ≤400 A and a breaking capacity of 2 000 A intended for use in road vehicles. This document is intended to be used in conjunction with ISO 8820-1 and with ISO 8820-2. The numbering of its clauses corresponds to that of ISO 8820-1 whose requirements are applicable, except where modified by requirements particular to this document.
Véhicules routiers — Liaisons fusibles — Partie 8: Liaisons fusibles avec contacts boulonnés (type H et J) à tension nominale de 450 V
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INTERNATIONAL ISO
STANDARD 8820-8
Second edition
2019-10
Road vehicles — Fuse-links —
Part 8:
Fuse-links with bolt-in contacts (Type
H and J) with rated voltage of 450 V
Véhicules routiers — Liaisons fusibles —
Partie 8: Liaisons fusibles avec contacts boulonnés (type H et J) à
tension nominale de 450 V
Reference number
©
ISO 2019
© ISO 2019
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting
on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address
below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2019 – All rights reserved
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Marking, labelling and colour coding . 1
5 Tests and requirements . 2
5.1 General . 2
5.1.1 Test criteria . 2
5.1.2 Test sequence . . . 2
5.1.3 Test cable sizes . 2
5.2 Voltage drop . 3
5.2.1 Tests . 3
5.2.2 Requirements . 3
5.3 Transient current cycling . 4
5.3.1 Test . 4
5.3.2 Requirements . 4
5.4 Environmental conditions . 4
5.5 Operating time-rating . 4
5.5.1 Test . 4
5.5.2 Requirement . 5
5.6 Current steps . 5
5.7 Breaking capacity . 5
5.7.1 Test . 5
5.7.2 Requirement . 5
5.8 Strength of terminals . 5
5.8.1 Test . 5
5.8.2 Requirements . 6
5.9 Temperature rise . 6
5.9.1 Test . 6
5.9.2 Requirement . 6
5.10 Resistance against temperature shock . 6
5.10.1 Test . 6
5.10.2 Requirement . 7
6 Dimensions . 7
6.1 Type H . 7
6.2 Type J . 8
7 Test fixture for fuse-links Type H and Type J . 9
Annex A (informative) Classification .10
Bibliography .11
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www .iso .org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see www .iso
.org/iso/foreword .html.
This document was prepared by Technical Committee ISO/TC 22, Road vehicles, Subcommittee SC 32,
Electrical and electronic components and general system aspects.
This second edition cancels and replaces the first edition (ISO 8820-8:2012), which has been technically
revised. The main changes compared to the previous edition are as follows:
— modification of Table 7 - dimension of c, Type H, and
— editorial changes.
A list of all parts in the ISO 8820 series can be found on the ISO website.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www .iso .org/members .html.
iv © ISO 2019 – All rights reserved
INTERNATIONAL STANDARD ISO 8820-8:2019(E)
Road vehicles — Fuse-links —
Part 8:
Fuse-links with bolt-in contacts (Type H and J) with rated
voltage of 450 V
1 Scope
This document specifies fuse-links with bolt-in contacts (Type H and J) and test fixtures for the fuse-
links for use in road vehicles. It establishes, for these fuse-link types, the rated current, test procedures,
performance requirements and dimensions.
This document is applicable to fuse-links with a rated voltage of 450 V DC, a current rating of ≤400 A
and a breaking capacity of 2 000 A intended for use in road vehicles.
This document is intended to be used in conjunction with ISO 8820-1 and with ISO 8820-2. The
numbering of its clauses corresponds to that of ISO 8820-1 whose requirements are applicable, except
where modified by requirements particular to this document.
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.
ISO 8820-1, Road vehicles — Fuse-links — Part 1: Definitions and general test requirements
ISO 6722-1, Road vehicles — 60 V and 600 V single-core cables — Part 1: Dimensions, test methods and
requirements for copper conductor cables
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 8820-1 apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https: //www .iso .org/obp
— IEC Electropedia: available at http: //www .electropedia .org/
4 Marking, labelling and colour coding
The rated current, manufacturer’s name or trademark and "450 V DC" shall be permanently marked on
the fuse-link.
5 Tests and requirements
5.1 General
5.1.1 Test criteria
In addition to carrying out the test procedures in accordance with ISO 8820-1 the following criteria
shall apply:
All tests shall be performed as specified in Table 1.
The test fixtures for electrical tests shall be designed in accordance with Figure 4. The connection
resistance shall be not higher than 0,35 mΩ to ensure the proper function of the test fixture. As two or
more fuse-links are tested in series, they shall be mounted not less than 150 mm apart.
5.1.2 Test sequence
Table 1 — Test sequence
a
No Test Clause Sample group
1 2 3 4 5 6 7
1 Dimensions 6 X X X — — — —
2 Marking, labelling 4 X X X X X X X
3 Strength of terminals 5.8 X X X X X X X
4 Fuse-link voltage drop 5.2 X X — — — — —
Environmental Climatic load — — X — — — —
5 condition Chemical loads 5.4 — — — X — — —
Mechanical load — — — — X — —
6 Transient current cycling 5.3 — — — — — X —
7 Temperature rise 5.9 — — — — — — X
8 Resistance against temperature shock 5.10 — — — — — — X
9 Breaking capacity 5.7 X — — — — — —
c
...
INTERNATIONAL ISO
STANDARD 8820-8
Second edition
2019-10
Road vehicles — Fuse-links —
Part 8:
Fuse-links with bolt-in contacts (Type
H and J) with rated voltage of 450 V
Véhicules routiers — Liaisons fusibles —
Partie 8: Liaisons fusibles avec contacts boulonnés (type H et J) à
tension nominale de 450 V
Reference number
©
ISO 2019
© ISO 2019
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting
on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address
below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2019 – All rights reserved
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Marking, labelling and colour coding . 1
5 Tests and requirements . 2
5.1 General . 2
5.1.1 Test criteria . 2
5.1.2 Test sequence . . . 2
5.1.3 Test cable sizes . 2
5.2 Voltage drop . 3
5.2.1 Tests . 3
5.2.2 Requirements . 3
5.3 Transient current cycling . 4
5.3.1 Test . 4
5.3.2 Requirements . 4
5.4 Environmental conditions . 4
5.5 Operating time-rating . 4
5.5.1 Test . 4
5.5.2 Requirement . 5
5.6 Current steps . 5
5.7 Breaking capacity . 5
5.7.1 Test . 5
5.7.2 Requirement . 5
5.8 Strength of terminals . 5
5.8.1 Test . 5
5.8.2 Requirements . 6
5.9 Temperature rise . 6
5.9.1 Test . 6
5.9.2 Requirement . 6
5.10 Resistance against temperature shock . 6
5.10.1 Test . 6
5.10.2 Requirement . 7
6 Dimensions . 7
6.1 Type H . 7
6.2 Type J . 8
7 Test fixture for fuse-links Type H and Type J . 9
Annex A (informative) Classification .10
Bibliography .11
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www .iso .org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see www .iso
.org/iso/foreword .html.
This document was prepared by Technical Committee ISO/TC 22, Road vehicles, Subcommittee SC 32,
Electrical and electronic components and general system aspects.
This second edition cancels and replaces the first edition (ISO 8820-8:2012), which has been technically
revised. The main changes compared to the previous edition are as follows:
— modification of Table 7 - dimension of c, Type H, and
— editorial changes.
A list of all parts in the ISO 8820 series can be found on the ISO website.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www .iso .org/members .html.
iv © ISO 2019 – All rights reserved
INTERNATIONAL STANDARD ISO 8820-8:2019(E)
Road vehicles — Fuse-links —
Part 8:
Fuse-links with bolt-in contacts (Type H and J) with rated
voltage of 450 V
1 Scope
This document specifies fuse-links with bolt-in contacts (Type H and J) and test fixtures for the fuse-
links for use in road vehicles. It establishes, for these fuse-link types, the rated current, test procedures,
performance requirements and dimensions.
This document is applicable to fuse-links with a rated voltage of 450 V DC, a current rating of ≤400 A
and a breaking capacity of 2 000 A intended for use in road vehicles.
This document is intended to be used in conjunction with ISO 8820-1 and with ISO 8820-2. The
numbering of its clauses corresponds to that of ISO 8820-1 whose requirements are applicable, except
where modified by requirements particular to this document.
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.
ISO 8820-1, Road vehicles — Fuse-links — Part 1: Definitions and general test requirements
ISO 6722-1, Road vehicles — 60 V and 600 V single-core cables — Part 1: Dimensions, test methods and
requirements for copper conductor cables
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 8820-1 apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https: //www .iso .org/obp
— IEC Electropedia: available at http: //www .electropedia .org/
4 Marking, labelling and colour coding
The rated current, manufacturer’s name or trademark and "450 V DC" shall be permanently marked on
the fuse-link.
5 Tests and requirements
5.1 General
5.1.1 Test criteria
In addition to carrying out the test procedures in accordance with ISO 8820-1 the following criteria
shall apply:
All tests shall be performed as specified in Table 1.
The test fixtures for electrical tests shall be designed in accordance with Figure 4. The connection
resistance shall be not higher than 0,35 mΩ to ensure the proper function of the test fixture. As two or
more fuse-links are tested in series, they shall be mounted not less than 150 mm apart.
5.1.2 Test sequence
Table 1 — Test sequence
a
No Test Clause Sample group
1 2 3 4 5 6 7
1 Dimensions 6 X X X — — — —
2 Marking, labelling 4 X X X X X X X
3 Strength of terminals 5.8 X X X X X X X
4 Fuse-link voltage drop 5.2 X X — — — — —
Environmental Climatic load — — X — — — —
5 condition Chemical loads 5.4 — — — X — — —
Mechanical load — — — — X — —
6 Transient current cycling 5.3 — — — — — X —
7 Temperature rise 5.9 — — — — — — X
8 Resistance against temperature shock 5.10 — — — — — — X
9 Breaking capacity 5.7 X — — — — — —
c
...
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