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ASME A17.8 2016

ASME A17.8 2016

$98.04

ASME A17.8 Standard for Wind Turbine Tower Elevators

Published By Publication Date Number of Pages
ASME 2016 65
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This standard covers elevators that are typically subjected to extreme temperatures, humidity variations, and substantial horizontal motions where, by reason of their limited use and the types of construction of the structures served, full compliance with ASME A17.1/CSA B44 Part 2 is not practicable or necessary.

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PDF Pages PDF Title
6 Contents
10 ASME A17 Elevator and Escalator Standards Committee
12 CSA B44 Technical Committee on the Elevator Safety Code
17 ASME A17.8/CSA B44.8 Joint Committee on Wind Turbine Tower Elevators
20 ASME Foreword
21 ASME Preface
23 CSA Preface
24 1 Scope, definitions, and references
1.1 Scope
1.1.1 Effective date
1.2 Definitions
30 1.3 References
32 2 Wind turbine tower elevators
2.1 Construction of hoistways
2.1.1 Hoistway enclosure not required
2.1.2 Enclosures required at landings
2.1.3 Floor over travel path not required
2.2 Pits
2.3 Location and enclosing of counterweights
2.3.1 Counterweight runways
33 2.3.2 Access to enclosed counterweights and ropes
2.4 Vertical clearances for cars and counterweights
2.4.1 Top car clearance (maintenance/inspection access required)
2.4.2 Top car clearance (maintenance/inspection access not required)
34 2.4.3 Top counterweight clearance
2.5 Horizontal car and counterweight clearances
2.5.1 Between car and landing platforms
2.5.2 Between car and any stationary object
2.5.3 Between car and counterweight and counterweight guard
2.5.4 Measurement of clearances
2.6 Protection of spaces below the travel path
2.7 Machinery spaces, machine rooms, control spaces, and control rooms
2.7.1 Equipment location
35 2.8 Equipment in the travel path, machinery space, and control spaces
2.8.1 Electrical equipment and wiring
2.9 Machinery and sheave beams, supports, and foundations
2.9.1 Securing of machinery beams and type of supports
2.9.2 Loads on overhead beams and supports
2.9.3 Factor of safety of overhead beams and supports
36 2.9.4 Allowable stresses and deflections for machinery and sheave beams, their supports, and any support members that transmit load to the turbine tower walls
2.10 Guarding of equipment and standard railing
2.10.1 Guarding of equipment
2.10.2 Standard railing
37 2.10.3 Landing platform protection
2.11 Protection of landing platform openings
2.11.1 Landing platform doors or gates
2.11.2 Door or gate closers
2.11.3 Horizontal platform inside enclosure
2.11.4 Platform lighting
2.11.5 Landing platform enclosures
38 2.12 Landing platform door locking devices and electric contacts
2.12.1 Landing platform door and gate locking devices
2.12.2 Where required (for automatic call operation)
2.12.3 General design requirements
39 2..13 Power operation of landing platform doors and car doors or gates
2.14 Car enclosures, car doors and gates, and car illumination
2.14.1 Car enclosure
2.14.2 Car height
2.14.3 Vision panels
40 2.14.4 Enclosure panels
2.14.5 Strength of car top
2.14.6 Top of car railing
2.14.7 Car illumination
2.14.8 Emergency lighting
41 2.14.9 Car emergency exit
2.14.10 Car doors and gates
2.14.11 Car door and gate electric contacts
42 2.14.12 Clear openings
2.14.13 Sectioning
2.14.14 Ventilation
2.15 Car frames and platforms
2.15.1 Car frames and platforms
2.15.2 Use of cast iron
2.15.3 Number of compartments
2.15.4 Guiding means
2.15.5 Strength of guiding means
43 2.15.6 Car frame
2.15.7 Guiding members
2.15.8 Kickboard
2.15.9 Obstruction-detection devices
2.15.10 Warning devices
44 2.15.11 Ladder-guided platforms
2.16 Capacity and loading
2.16.1 Capacity and data plates
2.16.2 Information required on plates
2.16.3 Limitation of load, speed, and platform area
2.16.4 Overload detection means
2.16.5 Speed-limiting device
2.17 Car and counterweight safeties
45 2.17.1 Wire rope gripping safety
2.17.2 Rack-and-pinion safety
46 2.17.3 Safety marking plates
2.17.4 Opening of driving-machine motor and brake control circuits on safety application
2.17.5 Application of safety
2.18 Reserved for future use
2.19 Reserved for future use
2.20 Suspension means and their connections
47 2.20.1 Suspension means for counterweighted traction elevators
2.20.2 Suspension means for uncounterweighted traction elevators
49 2.20.3 Chains used for suspension
2.21 Counterweights
2.21.1 Counterweight guides
2.21.2 Types of counterweight construction
50 2.22 Buffers, bumpers, and retardations
2.22.1 Bumpers
2.22.2 Spring buffers
2.22.3 Retardations
2.23 Car and counterweight guidance systems, supports, and fastenings
2.23.1 Wire rope guidance system for uncounterweighted traction drive machines
51 2.23.2 Ladder guidance systems
52 2.24 Driving machines, sheaves, and brakes
2.24.1 Rack-and-pinion driving machines
53 2.24.2 Traction driving machines, sheave and brakes
54 2.24.3 Chain climbing machines
2.24.4 Material and grooving for sheaves
55 2.24.5 Factor of safety for driving machines and sheaves
2.24.6 Bolts transmitting torque and set screws
2.24.7 Friction-gearing or clutch mechanism
2.24.8 Use of cast iron in gears
2.24.9 Braking system of driving machines
56 2.24.10 Means for manual release of driving machine brake
2.25 Terminal stopping devices
2.25.1 Final terminal stopping
57 2.25.2 Normal terminal stopping
2.25.3 Slack rope detection
58 2.26 Operating devices and control equipment
2.26.1 Operation and operating devices
2.26.2 Electrical protective devices
59 2.26.3 Contactors and relays for use in critical operating circuits
2.26.4 Electrical equipment and wiring
60 2.26.5 Phase protection of motors
2.26.6 Installation of capacitors or other devices to make electrical protective devices ineffective
2.26.7 Control and operating circuits
61 2.26.8 Release and application of driving-machine brakes
2.27 Emergency operation and signaling devices
62 2.28 Layout drawings
2.29 Welding
2.29.1 Qualification of welders
2.29.2 Welding steel
2.29.3 Welding metals other than steel
2.30 Engineering tests, type tests, and certification requirements
2.30.1 Type tests of interlocks, combination mechanical locks, and electric contacts and door or gate electric contacts
63 2.31 Maintenance, repair, replacement, and testing
2.31.1 Required information
2.31.2 Location
2.31.3 Material and construction
2.32 Acceptance inspections and tests
2.33 Periodic inspections and witnessing of tests
64 Annex A (informative) Wind turbine tower elevator clearances

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