Ingenieur Vol 71 ingenieur July 2017 | Page 33

Diagram 1 Other aspects that need to be looked into include the possibility of people coming into contact with the outer edges of a handrail at both the upper and lower landings and being drawn into a hazardous situation, such as toppling over the balustrade. Thus appropriate preventive measures have be taken, such as prevention of entry into the space by placing permanent barriers, increasing the height of the building structure of the fixed balustrades in the hazard area by at least 100 mm above the handrail level and positioned between 80 mm and 120 mm from the outer edge of the handrail (as shown in the Figure 1). All these features have their own function to prevent or reduce the risk of accidents when using escalators. In addition to the installation of safety devices such as those outlined above, compliance with existing requirements as well as additional measures will ensure the safety of users: 1. T h e ow n e r o f t h e escalators must ensure an Approved Firm is appointed to carry out work on the installation and maintenance of escalators, and ensure they can operate safely. 2. Aspects of engineering controls such as the installation of a railing and safety switches as those listed earlier, have been made after taking into account all factors that could pose a risk to users. These have been adopted and practiced around the world to p r e ve n t o r r e d u c e accidents. What is still lacking and could be improved is raising 31