Research Article

Enhancing Interpretability of Data-Driven Fault Detection and Diagnosis Methodology with Maintainability Rules in Smart Building Management

Table 2

Elevators & Escalators - Escalator.

ProblemDesignConstructionMaintenance

Escalator and passenger conveyor related maintainability issues

Accumulation of debris within the escalator interior

Footwear getting stuck between steps

Good practice: Escalator cordoned off during maintenance operations to prevent unauthorised access
Ensure that the landing area of escalators and passenger conveyors have a surface that provides a secure foothold for a minimum distance of 0.85 m (measured from the root of the comb teeth) in accordance with AS 1735.1 or equivalent.
Ensure that the escalator and its surroundings have sufficient and adequate illumination. The supporting structure for escalators and passenger conveyors should be designed in accordance with BS EN 115-1, SS 626 or equivalent.
Comply with the safety code for elevator design and construction in accordance with ASME A17.1/CSA B44, ISO 8100-20, BS 8899 or equivalent.
Incorporate anti-climbing, anti-sliding, access restriction and deflecting devices to maintain safe operation in accordance with SS 626 or equivalent.
Installation of escalators should be guided by the relevant standards and codes for safety and reliability in accordance with BS EN 115-1, SS 626 or equivalent.
All machinery should be mounted securely and be defect free (e.g., should not have any oil leakage).
To ensure safe operation without issues due to corrosion and wear and tear, all escalator components should be of durable and reliable make.
All signs, inscriptions and notices should be made of durable materials in accordance with BS EN 115-1, SS 626 or equivalent.
Ensure proper housekeeping of escalator to keep it clean and free of debris. Building owner/operator need to conduct monthly maintenance of escalators (including maintenance of safety switches, sensors, emergency stops, and handrails) in accordance with SS 626, BS EN 115-1 or equivalent. The annual inspection and testing should be performed by an independent authorised examiner (AE).
Bar access to the escalator or passenger conveyor with suitable devices and notices/signage displaying “no access/no entry” during maintenance, repair works, or inspections, in accordance with BS EN 115-1, SS 626 or equivalent.
Adopt the inspection criteria for safety of escalators in accordance with JIS A 4302. Refer to procedure for ride quality measurements of escalators and moving walks in accordance with BS ISO
18738-2 or equivalent.