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

| Area | 2012 requirement | 2021 update | |------|----------------|-------------| | | Mechanical + electrical | Enhanced with redundant monitoring per EN 81-20 | | Emergency operation | Manual rescue only | Added requirements for remote monitoring and emergency battery lowering | | Escalator comb plate safety | Contact sensor | Mandatory comb plate impact device with automatic stop | | Machine room access | Fixed ladder allowed | Revised to require landing platforms and guardrails | | Car roof clearance | 1.8m min | Increased to 2.0m for new installations | | Seismic design | Not specified | New section for seismic devices in tall buildings |

. This code, which replaces the 2019 edition, introduces mandatory technical revisions for machinery, particularly in escalator safety

The majority of amendments apply to Section E Part 4 , where the code adopts the latest international escalator standard, EN115-1:2017 , adapted for local requirements.

Updated guidelines for lift rail brackets and counterweight retainers to withstand tremors or building sways. | Area | 2012 requirement | 2021 update

: Stricter laminated glass specifications for panoramic lifts and shaft walls to prevent shattering.

New requirements for light curtains and door sensors to prevent trapping injuries.

The , issued by the Hong Kong Electrical and Mechanical Services Department (EMSD), serves as the primary technical standard for ensuring the safety and operational reliability of vertical and inclined transportation systems in the region. Key Highlights of the 2021 Edition Key Highlights of the 2021 Edition : Clearances

: Clearances within the lift well, pit depth, and headroom must account for new safety space metrics for maintenance personnel.

: Specific clauses governing step design, comb-plates, skirt switches, and emergency stop mechanics. 🔗 Official PDF Link and Access Options

, which focuses on the procedural requirements of maintenance, repair, and examination rather than just initial design. 機電工程署 PDF Access and Resources which replaces the 2019 edition

: Tightened requirements for chain replacement. For escalators with a rise over 15 meters, drive chains must be replaced at intervals not exceeding six years.

It applies to all registered lift/escalator engineers and contractors working under the Ordinance.

| Aspect | This 2021 code | EN 81-20/50 | ASME A17.1 | |--------|----------------|-------------|-------------| | | Required if no car top door | Similar | Less strict | | Escalator comb plate monitoring | Mandatory | Mandatory | Optional | | MRL lift pit access | Detailed | Moderate | Less detailed | | Firefighter lift water protection | High standard | Moderate | High |

Escalator guidelines in the 2021 edition focus heavily on passenger entrapment prevention and braking profiles.