SIST EN ISO 21179:2013

Light conveyor belts - Determination of the electrostatic field generated by a running light conveyor belt (ISO 21179:2013)

ISO 21179:2013 specifies a test method for the determination of the electrostatic field generated by a running light conveyor belt according to ISO 21183-1.

Leichte Fördergurte - Bestimmung des von einem laufenden, leichten Fördergurt erzeugten elektrostatischen Feldes (ISO 21179:2013)

Courroies transporteuses légères - Détermination du champ électrostatique engendré par une courroie transporteuse légère en marche (ISO 21179:2013)

L'ISO 21179:2013 spécifie une méthode d'essai pour mesurer le champ électrostatique généré par une courroie transporteuse légère en fonctionnement selon l'ISO 21183‑1.

Naprave za kontinuirni transport - Lahki trakovi tračnih transporterjev - Ugotavljanje elektrostatičnega polja zaradi delovanja tračnih transporterjev z lahkimi trakovi (ISO 21179:2013)

Ta mednarodni standard določa preskusno metodo za ugotavljanje elektrostatičnega polja zaradi delovanja tračnih transporterjev z lahkimi trakovi v skladu s standardom ISO 21183-1. Ta dinamični postopek je zahtevan, ker antistatičnega obnašanja transporterjev z lahkimi trakovi v mnogih primerih ni mogoče dovolj dobro opisati z merjenjem električne upornosti v skladu s standardom ISO 21178.

General Information

• Status: Published
• Public Enquiry End Date: 31-Dec-2012
• Publication Date: 13-May-2013
• ICS: 53.040.10 - Conveyors
• ICS: 53.040.20 - Components for conveyors
• Technical Committee: DTN - Lift and transport appliances
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 11-Apr-2013
• Due Date: 16-Jun-2013
• Completion Date: 14-May-2013
• Ref Project: EN ISO 21179:2013 - Light conveyor belts - Determination of the electrostatic field generated by a running light conveyor belt (ISO 21179:2013)

Relations

• Replaces: SIST EN ISO 21179:2007 - Light conveyor belts - Determination of the electrostatic field generated by a running light conveyor belt (ISO 21179:2005)
• Effective Date: 01-Jun-2013

Overview

EN ISO 21179:2013 / ISO 21179:2013 specifies a dynamic test method to determine the electrostatic field generated by a running light conveyor belt (as referenced in ISO 21183‑1). The standard is intended for cases where static electrical behaviour cannot be fully characterised by resistance measurements (ISO 21178), so it measures the field or surface potential produced while the belt is running.

Key topics and technical requirements

• Scope: Dynamic measurement of electrostatic field or surface potential for light conveyor belts in running condition.
• Test specimen: Virgin (unused) endless belt of (2 500 ± 50) mm length and (100 ± 1) mm width; joined according to manufacturer instructions and conditioned per ISO 18573 (Atmosphere B, 24 h; lower RH allowed for high‑conductivity belts).
• Apparatus:
  • Pair of earthed steel pulleys (diameter ≥ 200 mm, rim width 120 mm), raw surface Ra ≤ 1,6 µm, final chromium plating; driven pulley crowned per ISO 22.
  • Drive providing belt speed of 5 m/s from drive pulley to measurement point.
  • Measuring device: electrostatic field meter (E, V/m) or surface potential meter (U, V).
  • Earthed steel plates (200×200 mm and 600×200 mm) to correct and shield field distortions.
  • Tensioning device and specified shaft loads based on belt elastic modulus k (k per ISO 21181).
• Procedure:
  • Run belt with each side in contact with pulleys.
  • Position sensor on belt centreline, 500 mm from drive pulley; sensor distance 10–100 mm (25 mm preferred).
  • Record for 30 minutes; obtain maximum and a steady value (final 10 min change <10%).
  • If E is measured, compute surface potential by U = E × a (a = electrode-to-surface distance in metres).
• Reporting: includes belt designation, k value, conditioning and test-room conditions (temperature, RH), shaft load, side in contact, measured U or E values, and test date.

Applications and users

This standard is directly applicable to:

• Conveyor belt manufacturers performing product development and quality control.
• Independent test laboratories validating electrostatic behaviour of light conveyor belts.
• Procurement/specification engineers who need verified antistatic performance data for material selection.
• Safety and process engineers assessing electrostatic hazards in conveying systems (where antistatic performance and discharge risk are relevant).

Keywords: EN ISO 21179:2013, ISO 21179:2013, light conveyor belts, electrostatic field, surface potential, electrostatic measurement, antistatic testing, conveyor belt testing.

Related standards

• ISO 21178 - Light conveyor belts: determination of electrical resistances
• ISO 21181 - Determination of relaxed elastic modulus (k value)
• ISO 21183‑1 - Light conveyor belts: principal characteristics and applications
• ISO 18573 - Test atmospheres and conditioning periods
• ISO 22, ISO 4287 - Apparatus and surface/geometry references

For implementation, follow the detailed apparatus, conditioning and reporting requirements in EN ISO 21179:2013 to ensure repeatable, comparable electrostatic measurements.

Standards Content (Sample)

SLOVENSKI STANDARD
01-junij-2013
1DGRPHãþD
SIST EN ISO 21179:2007
1DSUDYH]DNRQWLQXLUQLWUDQVSRUW/DKNLWUDNRYLWUDþQLKWUDQVSRUWHUMHY
8JRWDYOMDQMHHOHNWURVWDWLþQHJDSROMD]DUDGLGHORYDQMDWUDþQLKWUDQVSRUWHUMHY]
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Light conveyor belts - Determination of the electrostatic field generated by a running light
conveyor belt (ISO 21179:2013)
Courroies transporteuses légères - Détermination du champ électrostatique engendré
par une courroie transporteuse légère en marche (ISO 21179:2013)
Ta slovenski standard je istoveten z: EN ISO 21179:2013
ICS:
53.040.10 Transporterji Conveyors
53.040.20 Deli za transporterje Components for conveyors
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN ISO 21179
NORME EUROPÉENNE
EUROPÄISCHE NORM
March 2013
ICS 53.040.10 Supersedes EN ISO 21179:2006
English Version
Light conveyor belts - Determination of the electrostatic field
generated by a running light conveyor belt (ISO 21179:2013)
Courroies transporteuses légères - Détermination du
champ électrostatique engendré par une courroie
transporteuse légère en marche (ISO 21179:2013)
This European Standard was approved by CEN on 2 March 2013.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national
standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same
status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United
Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2013 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 21179:2013: E
worldwide for CEN national Members.

Contents Page
Foreword . 3

Foreword
This document (EN ISO 21179:2013) has been prepared by Technical Committee ISO/TC 41 "Pulleys and
belts (including veebelts)" in collaboration with Technical Committee CEN/TC 188 “Conveyor belts” the
secretariat of which is held by SNV.
This European Standard shall be given the status of a national standard, either by publication of an identical
text or by endorsement, at the latest by September 2013, and conflicting national standards shall be
withdrawn at the latest by September 2013.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 21179:2006.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech
Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece,
Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.
Endorsement notice
The text of ISO 21179:2013 has been approved by CEN as EN ISO 21179:2013 without any modification.

INTERNATIONAL ISO
STANDARD 21179
Second edition
2013-03-15
Light conveyor belts — Determination
of the electrostatic field generated by
a running light conveyor belt
Courroies transporteuses légères — Détermination du champ
électrostatique engendré par une courroie transporteuse légère en
marche
Reference number
ISO 21179:2013(E)
©
ISO 2013
ISO 21179:2013(E)
© ISO 2013
All rights reserved. Unless otherwise specified, 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
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the requester.
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ii © ISO 2013 – All rights reserved

ISO 21179:2013(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Principle . 1
4 Apparatus (see Figure 1) . 1
4.1 Pair of pulleys, as follows: . 1
5 Test piece . 2
5.1 Material . 2
5.2 Dimension . 2
5.3 Endless joining . 2
5.4 Conditioning . 2
6 Procedure. 3
7 Expression of results . 5
8 Test report . 5
Bibliography . 6
ISO 21179:2013(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 tech
...