BS EN 81-50:2014
$215.11
Safety rules for the construction and installation of lifts. Examinations and tests – Design rules, calculations, examinations and tests of lift components
Published By | Publication Date | Number of Pages |
BSI | 2014 | 98 |
This European Standard specifies 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.
PDF Catalog
PDF Pages | PDF Title |
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4 | Contents Page |
8 | 1 Scope 2 Normative references |
9 | 3 Terms and definitions 4 List of significant hazards |
10 | 5 Design rules, calculations, examinations and tests 5.1 General provisions for type examinations of safety components 5.1.1 Object and extent of the tests |
11 | 5.1.2 General provisions 5.2 Type examination of landing and car door locking devices 5.2.1 General provisions 5.2.1.1 Field of application 5.2.1.2 Documents to be submitted |
12 | 5.2.1.3 Test samples 5.2.2 Examination and tests 5.2.2.1 Examination of operation 5.2.2.2 Mechanical tests |
13 | 5.2.2.3 Criteria for the mechanical tests 5.2.2.4 Electrical test |
14 | 5.2.3 Test particular to certain types of locking devices 5.2.3.1 Locking device for horizontally or vertically sliding doors with several panels |
15 | 5.2.3.2 Flap type locking device for hinged door 5.2.4 Type examination certificate 5.3 Type examination of safety gear 5.3.1 General provisions 5.3.2 Instantaneous safety gear 5.3.2.1 Test samples |
16 | 5.3.2.2 Test |
17 | 5.3.2.3 Determination of the permissible mass |
18 | 5.3.3 Progressive safety gear 5.3.3.1 Statement and test sample 5.3.3.2 Test |
20 | 5.3.3.3 Calculation of the permissible mass 5.3.3.4 Possible modification to the adjustments |
21 | 5.3.4 Comments 5.3.5 Type examination certificate 5.4 Type examination of overspeed governors 5.4.1 General provisions |
22 | 5.4.2 Check on the characteristics of the overspeed governor 5.4.2.1 Test samples 5.4.2.2 Test |
23 | 5.4.3 Type examination certificate 5.5 Type examination of buffers 5.5.1 General provisions 5.5.2 Samples to be submitted |
24 | 5.5.3 Test 5.5.3.1 Energy dissipation buffers |
25 | 5.5.3.2 Energy accumulation buffers with non linear characteristics |
27 | 5.5.4 Type examination certificate |
28 | 5.6 Type examination of safety circuits containing electronic components and/or programmable electronic systems (PESSRAL) 5.6.1 General provisions 5.6.1.1 General 5.6.1.2 Safety circuits containing electronic components 5.6.1.3 Safety circuits based on programmable electronic systems 5.6.2 Test samples |
29 | 5.6.3 Tests 5.6.3.1 Mechanical tests |
30 | 5.6.3.2 Temperature tests (EN 60068214) 5.6.3.3 Failure analysis of electric safety circuits 5.6.4 Type examination certificate |
31 | 5.7 Type examination of ascending car overspeed protection means 5.7.1 General provisions 5.7.2 Statement and test sample 5.7.3 Test 5.7.3.1 Method of test |
32 | 5.7.3.2 Test procedure |
33 | 5.7.3.3 Checking after the tests 5.7.4 Possible modification to the adjustments 5.7.5 Test report 5.7.6 Type examination certificate 5.8 Type examination of unintended car movement protection means 5.8.1 General provisions |
34 | 5.8.2 Statement and test sample |
35 | 5.8.3 Test 5.8.3.1 Method of Test 5.8.3.2 Test procedure |
36 | 5.8.3.3 Checks after the test 5.8.4 Possible modification to the adjustments |
37 | 5.8.5 Test report 5.8.6 Type examination certificate 5.9 Type examination of rupture valve/one-way restrictor 5.9.1 General provisions 5.9.1.1 General |
38 | 5.9.1.2 Samples to be submitted 5.9.1.3 Test 5.9.1.4 Test procedure |
41 | 5.9.1.5 Interpretation of the tests 5.9.1.6 Type examination certificate |
42 | 5.10 Guide rails calculation 5.10.1 Range of calculation 5.10.2 Bending |
43 | 5.10.3 Buckling |
44 | 5.10.4 Combination of bending and compression/tension or buckling stresses |
45 | 5.10.5 Flange bending 5.10.6 Deflections |
46 | 5.11 Evaluation of traction 5.11.1 Introduction 5.11.2 Traction calculation 5.11.2.1 General |
47 | 5.11.2.2 Evaluation of T1 and T2 |
48 | 5.11.2.3 Evaluation of the friction factor |
51 | 5.11.3 Fomulae for a general case |
54 | 5.12 Evaluation of safety factor on suspension ropes for electric lifts 5.12.1 General 5.12.2 Equivalent number Nequiv of pulleys 5.12.2.1 General |
55 | 5.12.2.2 Evaluation of Nequiv(t) 5.12.2.3 Evaluation of Nequiv(p) 5.12.3 Safety factor |
57 | 5.13 Calculations of rams, cylinders, rigid pipes and fittings 5.13.1 Calculation against over pressure 5.13.1.1 Calculation of wall thickness of rams, cylinders, rigid pipes and fittings 5.13.1.2 Calculation of the base thickness of cylinders (examples) |
59 | 5.13.2 Calculations of the jacks against buckling 5.13.2.1 General 5.13.2.2 Single acting jacks |
60 | 5.13.2.3 Telescopic jacks without external guidance, calculation of ram |
61 | 5.13.2.4 Telescopic jacks with external guidance |
62 | 5.14 Pendulum shock tests 5.14.1 General |
63 | 5.14.2 Test rig 5.14.2.1 Hard pendulum shock device 5.14.2.2 Soft pendulum shock device 5.14.2.3 Suspension of the pendulum shock device 5.14.2.4 Pulling and triggering device 5.14.2.5 Test samples 5.14.3 Tests |
64 | 5.14.4 Interpretation of the results 5.14.5 Test report |
67 | 5.15 Electronic components – Failure exclusion |
74 | 5.16 Design rules for programmable electronic systems (PESSRAL) |
75 | Annex A (normative)Model form of type examination certificate |
76 | Annex B (normative)Programmable electronic systems in safety related applications for lifts (PESSRAL) B.1 Common measures |
78 | B.2 Specific measures |
80 | B.3 Descriptions of possible measures |
85 | Annex C (informative)Example for calculation of guide rails C.1 General |
87 | C.2 General configuration for lifts with safety gear C.2.1 Safety gear operation C.2.1.1 Bending stress |
88 | C.2.1.2 Buckling C.2.1.3 Combined stress) |
89 | C.2.1.4 Flange bending) C.2.1.5 Deflections) C.2.2 Normal operation, running C.2.2.1 Bending stress C.2.2.2 Buckling C.2.2.3 Combined stress) C.2.2.4 Flange bending) |
90 | C.2.2.5 Deflection) C.2.3 Normal operation, loading C.2.3.1 Bending stress C.2.3.2 Buckling C.2.3.3 Combined stress) |
91 | C.2.3.4 Flange bending C.2.3.5 Deflections |
92 | Annex D (informative)Calculation of traction – Example |
94 | Annex E (informative)Equivalent number of pulleys Nequiv – Examples |
95 | Annex ZA (informative)Relationship between this European Standard and the Essential Requirements of EU Directive 95/16/EC amended by Directive 2006/42/EC |