ISO INTERNATIONAL STANDARD 13855 Second edition 2010-05-01 Safety of machinery Positioning of safeguards with respect to the approach speeds of parts of the human body Sécurite des machinesPositionnement des moyens de protection par rapport a la vitesse d'approche des parties du corps Reference number ISO 13855:2010(E) @ ISO 2010 THS unde Not for Resale ISO 13855:2010(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by IsO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. COPYRIGHT PROTECTED DOCUMENT ISO2010 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either isO at the address below or ISO's member body in the country of the requester. ISO copyright office Case postale 56 . CH-1211 Geneva 20 Tel. + 4122 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland @ ISO 2010 - All rights reserved without license from IHS Not for Resale ISO 13855:2010(E) Contents Page Foreword Introductior 1 Scope 2 Normative references 3 Terms, definitions, symbols and abbreviated terms 3.1 Terms and definitions 3.2 Symbolsandabbreviatedterms 4 Methodology 5 General equation for the calculation of the overall system stopping performance and minimumdistances 5.1 Overall system stopping performance 5.2 Minimum distance ... 6 Calculation of minimum distances for electro-sensitive protective equipment employing active opto-electronic protective systems.... 6.1 8 6.2 Detection zone orthogonal to the direction of approach 6.3 Detection zone parallel to the direction of approach .. 2 6.4 Detection zone angled to the direction of approach .... 14 6.5 Addressing possible circumventing of electro-sensitive protective equipment by reaching overthedetectionzone 6.6 Indirect approach - - Path from detection zone to hazard zone restricted by obstacles. 19 < Method of calculating the positioning of pressure-sensitive mats or floors 7.1 General ....... 7.2 Step mounting ... 8 Two-hand control devices. 22 9 Interlocking guards without guard locking... .22 AnnexA(informative)Workedexamples .24 Annex B (informative) Termination of hazardous machine functions.. ...33 Annex C (informative) Example for considering indirect approaches .34 Annex D (informative) Measurement and calculation of overall system stopping performance .. ....36 Annex E (informative) Number of beams and their height above the reference plane. .38 Bibliography.... ii from IHS Not for Resa