SIST IEC 60105:1999

• Abstract:

  Prescribes the electrical properties of commercial-purity aluminium for busbars, regardless of the cross-sectional shape of the bar.

• Status: Published
• Publication Date: 31-Oct-1999
• ICS: 19.040 - Environmental testing
• ICS: 29.050 - Superconductivity and conducting materials
• ICS: 29.240.20 - Power transmission and distribution lines
• Technical Committee: GAV - Bare aluminium conductors
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Nov-1999
• Due Date: 01-Nov-1999
• Completion Date: 01-Nov-1999
• Ref Project: IEC 60068-2-48:1982 - Environmental testing - Part 2: Tests. Guidance on the application of the tests of IEC 68 to simulate the effects of storage

SIST IEC 60105:1999 is a SIST standard identical to IEC 60105. It specifies the electrical properties of commercial-purity aluminium busbar material, so engineers, quality managers, and buyers can judge whether aluminium intended for busbars meets the required resistivity level regardless of bar shape.

What does SIST IEC 60105:1999 specify?

SIST IEC 60105:1999 applies to commercial-purity aluminium busbar material and focuses on electrical performance rather than manufacturing detail. Its main purpose is to set the resistivity target for aluminium used as busbars, independent of the bar’s cross-sectional shape.

The document is organized into Scope, Object, Resistivity, and a note that gives physical properties to use in calculations. In practice, the key technical content is concentrated in Clause 3, with the note supporting measurement and calculation work.

What are the key requirements of SIST IEC 60105:1999?

• Clause 1 - Scope: the recommendation applies to commercial-purity aluminium busbar material. This tells users exactly which material family is covered before they specify, test, or purchase it.
• Clause 2 - Object: the recommendation is intended to prescribe the electrical properties of commercial-purity aluminium for busbars, regardless of cross-sectional shape. That matters because round, flat, or other bar shapes are treated the same for the electrical property requirement.
• Clause 3.1 - Volume resistivity limit: the volume resistivity shall not exceed 0.0290 ohm.mm²/m at 20 °C. In practice, this is the acceptance limit used when checking whether the aluminium is suitable for busbar service.
• Clause 3.1 - Alternative unit: the same limit is also given as 17.444 ohm.cir mil/ft. This helps users working in different unit systems compare results consistently.
• Clause 3.2 - Measurement error: the errors of measurement, taken together, shall not be greater than 3 parts in 1000 and are included in the stated value. This matters because the measured result is not treated separately from measurement uncertainty when judging compliance.
• Clause 3.3 - Test temperature range: resistivity measurements shall be made at a temperature between 10 °C and 30 °C, then corrected to 20 °C. This gives a controlled basis for comparison, so test results from different laboratories can be aligned.
• Note to Clause 3 - Calculation data at 20 °C: the document gives density, constant mass temperature coefficient of resistance, and coefficient of linear expansion for use in calculations. These values support practical work such as converting measurements and doing design calculations for busbar material.

What terms does SIST IEC 60105:1999 define?

• Commercial-purity aluminium - Aluminium of the purity level covered by this recommendation for busbar use.
• Busbar material - Aluminium intended to be used as busbars for current conduction.
• Volume resistivity - The electrical property limited by the recommendation at 20 °C; lower resistivity means better current-carrying behavior.
• Cross-sectional shape - The shape of the bar in section, which does not change whether the recommendation applies.
• Constant mass temperature coefficient of resistance - A calculation value used to relate resistance changes to temperature.
• Coefficient of linear expansion - A calculation value used to estimate dimensional change with temperature.

Who uses SIST IEC 60105:1999?

SIST IEC 60105:1999 is used by electrical equipment designers, aluminium busbar manufacturers, test laboratories, and purchasing or quality personnel who need a clear resistivity requirement for busbar material. It is also relevant in power transmission and distribution work, where busbars are part of current-carrying systems, and in technical work on conducting materials.

What does the SIST IEC 60105:1999 document contain?

The document contains the IEC-style front matter, a short technical text, and one calculation note. Clause 3 provides the resistivity limit, the measurement error treatment, and the temperature range for testing, while the note lists physical properties at 20 °C for use in calculations.

It is a concise document focused on one material property set, not a full manufacturing specification. For that reason, it is mainly used for acceptance checks, specification writing, and comparison of measured resistivity results for commercial-purity aluminium busbar material.

SLOVENSKI STANDARD
01-november-1999
Recommendation for commercial-purity aluminium busbar material
Recommendation for commercial-purity aluminium busbar material
Recommandations concernant l'aluminium de pureté commerciale pour barres de
connexion
Ta slovenski standard je istoveten z: IEC 60105
ICS:
29.050 Superprevodnost in prevodni Superconductivity and
materiali conducting materials
29.240.20 Daljnovodi Power transmission and
distribution lines
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

NORME
CEI
INTERNATIONALE IEC
INTERNATIONAL
Première édition
STANDARD
First edition
1958-01
Recommandation concernant l'aluminium
de pureté commerciale pour barres de connexion
Recommendation for commercial-purity
aluminium busbar material
C IEC 1958 Droits
de reproduction réservés — Copyright - all rights reserved
Aucune partie de cette publication ne peut être reproduite ni
No part of this publication may be reproduced or utilized in
utilisée sous quelque forme que ce soit et par aucun
any form or by any means, electronic or mechanical,
procédé, électronique ou mécanique, y compris la photo-
including photocopying and microfilm, without permission in
copie et les microfilms, sans l'accord écrit de l'éditeur.
writing from the publisher.
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Pour prix, voir catalogue en vigueur
• •
For price, see current catalogue

— 3 —
INTERNATIONAL ELECTROTECHNICAL COMMISSION
RECOMMENDATION FOR COMMERCIAL-PURITY ALUMINIUM
BUSBAR MATERIAL
FOREWORD
(1) The formal decisions or agreements of the I.E.C. on technical matters, prepared by Technical Committees on which
all the National Committees having a special interest therein are represented, express, as nearly as possible, an
international consensus of opinion on the subjects dealt with.
(2) They have the form of recommendations for international use and they are accepted by the National Committees in
that sense.
(3) In order to promote this international unification, the I.E.C. expresses the wish that all National Committees having
as yet no national
...