PREN 81-50 : DRAFT 2011

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 List of significant hazards
5 Design rules, calculations, examinations and
  tests
Annex A (normative) - Model form of type
        examination certificate
Annex B (informative) - Proof of guide rails - Example
        of calculation method
Annex C (normative) - Programmable electronic
        systems in safety related applications for
        lifts (PESSRAL)
Annex D (informative) - Equivalent number of pulleys
        Nequiv - Examples
Annex E (informative) - Correlation table between
        EN 81-1, EN 81-2 and prEN 81-20 and
        prEN 81-50
Annex ZA (informative) - Relationship between this
         European Standard and the Essential Requirements
         of EU Directive 95/16/EC amended by Directive
         2006/42/EC
Bibliography

Defines the design rules, calculations, examinations and tests of lift components which are referred to by other standards used for the design of passenger lifts, goods passenger lifts, goods only lifts, and other similar types of lifting appliances.