GB/T 44843-2024 in English
VALIDSpecifications for safety estimation of existing escalators and moving walks
- Issued on:2024-10-26
- Implemented on:2024-10-26
- File Format:PDF
- Delivery:Via email within 8 business days
$621.00
| Standard No: | GB/T 44843-2024 |
| Document status: | VALID |
| Title in English: | Specifications for safety estimation of existing escalators and moving walks |
| Title in Chinese: | 在用自动扶梯和自动人行道安全评估规范 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 8 business days |
| Issued on: | 2024-10-26 |
| Implemented on: | 2024-10-26 |
| ICS Classification: | 91.140.90-Lifts. Escalators |
| Chinese Classification: | Q78-Elevator |
| Professional Classification: | GB-National Standard |
| Related Keywords: | version basic safety requirements
risk level standard assessment module key indicators risk category safety estimation review risk assessment matrix |
| Related Topics: | assess safety
Semi-Automated Instrument Evaluation Automatic sample escalator latest |
《GB/T 44843-2024在用自动扶梯和自动人行道安全评估规范》由TC196（全国电梯标准化技术委员会）归口，主管部门为国家标准委。
Introduction
Analysis of the core content of the standard
| Assessment module | Key indicators | Risk category threshold |
|---|---|---|
| Equipment body | Drive chain elongation ≤3%, step gap ≤6mm, additional brake configuration | Class I (1A-3B) requires immediate rectification |
| Building related | Handrail spacing ≥160mm, entrance and exit clear area ≥2.5m | Class II (1E-4B) recommended for review |
Risk Assessment Matrix
According to clause 7.1.3 of the standard, the risk level is determined by the combination of injury severity (level 1-4) and occurrence probability (AF level):
- 1B risk: risk of death + very likely to occur → protective measures must be taken
- 3D risk: minor damage + very rare occurrence → technical and economic analysis required
Implementation points
- Evaluation agency qualifications: more than 2 professionals with special equipment inspection/manufacturing experience are required (clause 4.2)
- Key scrapping criteria: step tooth top surface width <2.5mm, apron plate gap >4mm, replacement is required (Appendix A)
- New technology response: For variable frequency drive systems, special inspection of the DC bus capacitor status is required (Table A.15)
Comparison of standard evolution
| Version | New requirements | Technology improvement |
|---|---|---|
| 2024 version | Add multiple linkage protection (16.10), electrostatic protection (16.14) | Risk quantification scoring system (Formula 1) |
| 2011 version | Basic safety requirements | Qualitative evaluation is the main method |
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