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IS 15729:2007 Part 1 is the Indian Standard (BIS) for lifts for persons with impaired mobility — safety, dimensions and functional operation — part 1: vertical lifting platforms. This standard specifies the safety rules, dimensions, and functional requirements for permanently installed, power-operated inclined lifting platforms. It is intended for use by persons with impaired mobility, covering aspects like platform size for wheelchair users, drive systems, safety devices, and controls for installations on stairs or inclined surfaces.
Specifies safety requirements for permanently installed vertical lifting platforms for persons with impaired mobility.
EN 81-41:2010CEN (European Committee for Standardization), Europe
HighCurrent
Safety rules for the construction and installation of lifts - Special lifts for the transport of persons and goods - Part 41: Vertical lifting platforms intended for use by persons with impaired mobility
Covers safety and operational rules for vertical lifting platforms for persons with impaired mobility, serving as a primary basis for many national codes.
ISO 9386-1:2000ISO (International Organization for Standardization), International
HighCurrent
Power-operated lifting platforms for persons with impaired mobility — Rules for safety, dimensions and functional operation — Part 1: Vertical lifting platforms
The foundational international standard from which IS 15729:2007 was largely derived, focusing on the same equipment type.
ASME A18.1-2023ASME (American Society of Mechanical Engineers), USA
HighCurrent
Safety Standard for Platform Lifts and Stairway Chairlifts
The US equivalent, covering vertical platform lifts with similar safety objectives, though with some differing regional requirements.
AS 1735.14-2021Standards Australia, Australia/New Zealand
MediumCurrent
Lifts, escalators and moving walks, Part 14: Low-rise platforms for passengers
Australian standard for low-rise passenger platforms, including those for accessibility, with broadly similar safety principles.
Key Differences
≠IS 15729:2007 references Indian national standards for electrical installations (e.g., IS 732, IS 3043), whereas EN 81-41 refers to European norms (e.g., EN 60204-1).
≠Being an older standard (2007), IS 15729 may lack specific requirements for modern electronic safety systems or updated risk assessments found in newer revisions like ASME A18.1-2023.
≠While core principles are the same, some dimensional requirements or allowable configurations may differ slightly due to regional practices, such as maximum travel heights permitted by US state adoptions of ASME A18.1 versus European norms.
≠The Indian standard is a direct adaptation of the older ISO 9386-1:2000, and thus does not incorporate subsequent updates and refinements present in the more recent EN 81-41:2010.
Key Similarities
≈All listed standards mandate a maximum rated speed of 0.15 m/s, establishing a common safety benchmark for this equipment class.
≈The requirement for 'hold-to-run' (constant pressure) controls is a universal safety feature across IS, EN, ISO, and ASME standards to ensure user intent and control.
≈Core safety mechanisms such as a safety gear to arrest falls, door/gate interlocking, and protection against crushing under the platform are fundamental and required by all standards.
≈All standards specify minimum platform dimensions designed to accommodate a wheelchair user, ensuring the fundamental accessibility purpose of the equipment is met.
≈The permitted drive systems (e.g., hydraulic, screw-and-nut, chain drive) are similar across standards, provided they meet stipulated safety and performance criteria.
Parameter Comparison
Parameter
IS Value
International
Source
Maximum Rated Speed
0.15 m/s
0.15 m/s
EN 81-41:2010
Control System Type
Hold-to-run (constant pressure)
Hold-to-run (constant pressure)
ISO 9386-1:2000
Minimum Platform Dimension (for wheelchair)
800 mm x 1250 mm
800 mm x 1250 mm (for Type 1 wheelchair)
EN 81-41:2010
Maximum Travel for Unenclosed Platform
2.0 m
2.0 m
EN 81-41:2010
Minimum Safety Factor (Suspension Ropes)
12
12
ISO 9386-1:2000
Minimum Safety Factor (Suspension Chains)
10
10
ISO 9386-1:2000
Minimum Platform Side Wall Height (Non-access side)
1.1 m
1.1 m
EN 81-41:2010
Minimum Clearance under Platform Pit
50 mm (with sensitive safety edge)
Clearance not specified, but requires a sensitive surface to stop descent on obstruction
ASME A18.1-2023
⚠ Verify details from original standards before use
Key Values7
Quick Reference Values
Maximum rated speed0.15 m/s
Minimum rated load225 kg
Minimum platform width for wheelchair user (straight through)800 mm
Minimum platform length for wheelchair user (straight through)1250 mm
Maximum inclination of guide-rails45 degrees
Minimum safety factor for suspension ropes12
Minimum height of protection on the platform sides1100 mm
Tables & Referenced Sections
Key Tables
Table 1 - Minimum Dimensions of Platforms
Table 2 - Minimum Clearance in mm Between Platform Parts and Fixed Obstacles
Table 3 - Maximum Permissible Stopping Distances
Key Clauses
Clause 5 - General Safety Requirements and/or Protective Measures