ISO 8820-8:2019

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

General Information

• Status: Published
• Publication Date: 09-Oct-2019
• ICS: 43.040.10 - Electrical and electronic equipment
• Technical Committee: ISO/TC 22/SC 32 - Electrical and electronic components and general system aspects
• Drafting Committee: ISO/TC 22/SC 32/WG 5 - Fuses and circuit breakers
• Current Stage: 6060 - International Standard published
• Start Date: 10-Oct-2019
• Due Date: 30-Jul-2020
• Completion Date: 10-Oct-2019

Relations

• Revises: ISO 8820-8:2012 - Road vehicles — Fuse-links — Part 8: Fuse-links with bolt-in contacts (Type H and J) with rated voltage of 450 V
• Effective Date: 23-Apr-2020

Standards Content (Sample)

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 8820-8:2019(E)
©
ISO 2019

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ISO 8820-8:2019(E)

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© ISO 2019
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
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ii © ISO 2019 – All rights reserved

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ISO 8820-8:2019(E)

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
© ISO 2019 – All rights reserved iii

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ISO 8820-8:2019(E)

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

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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-
li
...