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eLibrary > ASME A17.8 Standard for Wind Turbine Tower Elevators >

ASME A17.8 Standard for Wind Turbine Tower Elevators, 2016

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ASME A17.8 Standard for Wind Turbine Tower Elevators, 2016

Contents
ASME A17 Elevator and Escalator Standards Committee
CSA B44 Technical Committee on the Elevator Safety Code
ASME A17.8/CSA B44.8 Joint Committee on Wind Turbine Tower Elevators
ASME Foreword
ASME Preface
CSA Preface
1 Scope, definitions, and references [Go to Page]
1.1 Scope [Go to Page]
1.1.1 Effective date
1.2 Definitions
1.3 References
2 Wind turbine tower elevators [Go to Page]
2.1 Construction of hoistways [Go to Page]
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 [Go to Page]
2.3.1 Counterweight runways
2.3.2 Access to enclosed counterweights and ropes
2.4 Vertical clearances for cars and counterweights [Go to Page]
2.4.1 Top car clearance (maintenance/inspection access required)
2.4.2 Top car clearance (maintenance/inspection access not required)
2.4.3 Top counterweight clearance
2.5 Horizontal car and counterweight clearances [Go to Page]
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 [Go to Page]
2.7.1 Equipment location
2.8 Equipment in the travel path, machinery space, and control spaces [Go to Page]
2.8.1 Electrical equipment and wiring
2.9 Machinery and sheave beams, supports, and foundations [Go to Page]
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
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 [Go to Page]
2.10.1 Guarding of equipment
2.10.2 Standard railing
2.10.3 Landing platform protection
2.11 Protection of landing platform openings [Go to Page]
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
2.12 Landing platform door locking devices and electric contacts [Go to Page]
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
2..13 Power operation of landing platform doors and car doors or gates
2.14 Car enclosures, car doors and gates, and car illumination [Go to Page]
2.14.1 Car enclosure
2.14.2 Car height
2.14.3 Vision panels
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
2.14.9 Car emergency exit
2.14.10 Car doors and gates
2.14.11 Car door and gate electric contacts
2.14.12 Clear openings
2.14.13 Sectioning
2.14.14 Ventilation
2.15 Car frames and platforms [Go to Page]
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
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
2.15.11 Ladder-guided platforms
2.16 Capacity and loading [Go to Page]
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 [Go to Page]
2.17.1 Wire rope gripping safety
2.17.2 Rack-and-pinion safety
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 [Go to Page]
2.20.1 Suspension means for counterweighted traction elevators
2.20.2 Suspension means for uncounterweighted traction elevators
2.20.3 Chains used for suspension
2.21 Counterweights [Go to Page]
2.21.1 Counterweight guides
2.21.2 Types of counterweight construction
2.22 Buffers, bumpers, and retardations [Go to Page]
2.22.1 Bumpers
2.22.2 Spring buffers
2.22.3 Retardations
2.23 Car and counterweight guidance systems, supports, and fastenings [Go to Page]
2.23.1 Wire rope guidance system for uncounterweighted traction drive machines
2.23.2 Ladder guidance systems
2.24 Driving machines, sheaves, and brakes [Go to Page]
2.24.1 Rack-and-pinion driving machines
2.24.2 Traction driving machines, sheave and brakes
2.24.3 Chain climbing machines
2.24.4 Material and grooving for sheaves
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
2.24.10 Means for manual release of driving machine brake
2.25 Terminal stopping devices [Go to Page]
2.25.1 Final terminal stopping
2.25.2 Normal terminal stopping
2.25.3 Slack rope detection
2.26 Operating devices and control equipment [Go to Page]
2.26.1 Operation and operating devices
2.26.2 Electrical protective devices
2.26.3 Contactors and relays for use in critical operating circuits
2.26.4 Electrical equipment and wiring
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
2.26.8 Release and application of driving-machine brakes
2.27 Emergency operation and signaling devices
2.28 Layout drawings
2.29 Welding [Go to Page]
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 [Go to Page]
2.30.1 Type tests of interlocks, combination mechanical locks, and electric contacts and door or gate electric contacts
2.31 Maintenance, repair, replacement, and testing [Go to Page]
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
Annex A (informative) Wind turbine tower elevator clearances [Go to Page]

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ASME A17.8 Standard for Wind Turbine Tower Elevators, 2016

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