Code Of Practice On The Design And Construction Of Lifts And Escalators -2021 Edition- Pdf

The Code of Practice on the Design and Construction of Lifts and Escalators (2021 Edition), published by the Electrical and Mechanical Services Department (EMSD), officially took effect on October 1, 2022, replacing the 2019 edition. It provides comprehensive safety standards, technical specifications for installation, and procedures under the Lifts and Escalators Ordinance (Cap. 618). The full text is available through the EMSD website. EMSD : Code of Practice (805)

Introduction

The code of practice for the design and construction of lifts and escalators provides guidelines and standards for the safe and efficient installation of lifting equipment in buildings. The 2021 edition of the code aims to ensure that lifts and escalators are designed and constructed to provide safe and reliable transportation for users.

Scope of the Code

The code applies to the design and construction of:

1. Lifts (elevators) including passenger lifts, goods lifts, service lifts, and lifts for specific purposes (e.g., hospital lifts).
2. Escalators, including inclined and horizontal escalators.
3. Moving walks.

Key Principles

The code is based on the following key principles:

1. Safety: The primary concern is the safety of users, maintenance personnel, and others who may be affected by the installation.
2. Reliability: Lifts and escalators should be designed and constructed to operate reliably and efficiently.
3. Accessibility: Lifts and escalators should be designed to provide access for people with disabilities.

Design Requirements

The code outlines the following design requirements:

1. Lift Cars: Lift cars should be designed to provide a safe and comfortable environment for users. This includes requirements for car size, shape, and interior finishes.
2. Doors and Gates: Doors and gates should be designed to prevent accidents and ensure safe access to the lift car.
3. Hoistway and Machine Room: The hoistway and machine room should be designed to ensure safe access and maintenance.
4. Escalator and Moving Walk Design: Escalators and moving walks should be designed to provide a safe and efficient means of transportation.

Construction Requirements

The code outlines the following construction requirements:

1. Materials and Workmanship: Lifts and escalators should be constructed using materials and workmanship that meet the requirements of the code.
2. Installation: Lifts and escalators should be installed in accordance with the manufacturer's instructions and the requirements of the code.
3. Testing and Commissioning: Lifts and escalators should be tested and commissioned to ensure that they operate safely and efficiently.

Safety Features

The code requires the following safety features:

1. Emergency Stop: Lifts and escalators should be equipped with an emergency stop device.
2. Safety Gears: Lifts should be equipped with safety gears to prevent free fall in case of a failure.
3. Braking Systems: Escalators and moving walks should be equipped with braking systems to control speed and prevent accidents.

Inspection and Maintenance

The code requires regular inspection and maintenance of lifts and escalators to ensure that they remain safe and efficient.

Compliance

Compliance with the code is essential to ensure that lifts and escalators are designed and constructed to provide safe and reliable transportation. Building owners, architects, engineers, and contractors should ensure that they comply with the requirements of the code.

References

For more detailed information, refer to the 2021 edition of the code of practice for the design and construction of lifts and escalators. The Code of Practice on the Design and

Here is a link to download the PDF:

(I'm sorry, but I don't have direct access to the specific 2021 edition code; however, I can suggest searching online for the document using keywords like "code of practice for the design and construction of lifts and escalators 2021 pdf")

Please ensure that you obtain the document from a reputable source.

I understand you're looking for the "Code of Practice on the Design and Construction of Lifts and Escalators – 2021 Edition" in PDF format. However, I cannot directly provide or generate the PDF file itself, as that would involve distributing copyrighted material.

What I can do to help you obtain the document legally and efficiently:

1. Identify the issuing authority – This is likely from the Buildings Department of Hong Kong (or a similar jurisdiction, such as Singapore or the UK). The 2021 edition is often a Hong Kong Code of Practice.

2. Legal free access – Many government bodies provide these codes as free PDF downloads on their official websites. I suggest:

   • Searching for: "Code of Practice on the Design and Construction of Lifts and Escalators" 2021 site:bd.gov.hk
   • Or visiting the Hong Kong Buildings Department → Publications → Codes of Practice.

3. If you need a structured summary or a paper based on the code (for study or reference), I can write a detailed original paper that summarizes its key provisions, structure, and technical requirements. This would be a new, non-copyright-infringing document written by me.

Introduction

The Code of Practice on the Design and Construction of Lifts and Escalators provides guidelines and standards for the design, construction, installation, testing, and maintenance of lifts and escalators in buildings. The 2021 edition of the code aims to ensure that lifts and escalators are designed and constructed to provide safe and efficient transportation for users.

Scope of the Code

The code applies to:

1. Lifts (elevators) and escalators installed in buildings for carrying people or goods.
2. Lifts and escalators that are newly installed, altered, or modified.

Key Definitions

1. Lift: A device used for transporting people or goods between floors in a building.
2. Escalator: A device used for transporting people between floors in a building by means of a moving staircase.
3. Machine room: A room or space housing the machinery and equipment for a lift or escalator.

Design and Construction Requirements

4. Harmonization with International Standards

A critical aspect of the 2021 Code is its move away from isolated local specifications towards global harmonization, specifically with European Norms (EN).

• EN 81-20 and EN 81-50 Alignment: The code adopts the principles of EN 81-20 (Safety rules for the construction and installation of lifts) regarding "Pit and Headroom" dimensions. This harmonization reduces the design complexity for international manufacturers importing equipment, as the physical interfaces (e.g., buffers, guide rails) now share standardized mounting points.
• Seismic Considerations: Drawing from Japanese and American standards, the 2021 Code introduces more robust seismic constraints for high-rise applications, mandating specific rope retention devices and counterweight framing to prevent derailment during earthquakes.

Roles & responsibilities

• Designer: produce Code-compliant design, calculations, risk assessments.
• Manufacturer/supplier: supply equipment to specified standards, perform FATs and provide manuals.
• Contractor/installer: install per design and coordinate inspections.
• Owner/operator: ensure maintenance, arrange periodic examinations and maintain records.
• Regulator/inspector: review submissions, inspect installations and issue approvals.

Step 3: Specify to Manufacturers

When tendering for Otis, Schindler, Mitsubishi, or TK Elevator, attach the 2021 edition PDF as a contractual requirement. Many standard products are built to EN 81-20 or -50; the Hong Kong code adds local demands (e.g., higher emergency battery capacity due to unstable mains).

5. Accessibility (Barrier-Free Design)

The 2021 edition harmonizes with the BD’s Design Manual 2021 for barrier-free access. It specifies:

• Revised car button heights (900mm to 1200mm from floor)
• Mandatory auditory signals for all new lifts
• Tactile markings on control panels
• Handrail heights and extensions on escalators

What Is the 2021 Edition?

The 2021 edition is a mandatory or advisory legal document (depending on jurisdiction, often adopted by authorities like the Buildings Department or Labor Department in regions such as Hong Kong, Singapore, or the UK) that updates previous versions from 2012 or 2018. It incorporates lessons learned from technological advances, accident investigations, and international harmonization with standards like EN 81 (European) and ASME A17.1 (American). Key Principles The code is based on the

Future-Proofing Your Project: Green and Smart Lifts

Beyond safety, the 2021 edition introduces a non-mandatory but recommended section on energy efficiency (Appendix J). While not enforceable, it strongly encourages:

• Regenerative drives (recovering energy from descending cars)
• LED lighting with motion sensors inside cars
• Standby mode for escalators (reducing speed when no passengers)

If you are applying for BEAM Plus certification (Hong Kong’s green building rating), following these recommendations from the code of practice PDF provides documented compliance.