A HIRARC MODEL FOR SAFETY AND RISK EVALUATIONATAHYDROELECTRIC POWER GENERATION PLANT

Abstract

Thither are many conventional techniques for the systematic analysis of occupational safety and health in general,
and hazard analysis in particular, for power generation plants at hydroelectric power stations.This workwasstarted in order to create a HIRARC model for the evaluation of environmental safety and healthat ahydroelectric power generation plant at Cameron Highlands in Pahang, Malaysia.The HIRARCmodel wasapplied to distinguish the main and secondary hazards which may be inherent in the organization whichwereregulated as a serious threat for plant performance and sustenance.The main tools of the model consistedof,
generic checklist, work place inspection schemes which included task observation and interview, safety analysisas well as accident and incident investigation.For risk assessment, the Liker scale was complemented bytheseverity matrix analysis in order to decide the probability and extent of safety and health at the study power
generation works.These were used to identify and recommend control measures which included engineeringandadministrative aspects as well as the usage of personal protective equipment (PPE).A total of forty-one important
hazard items were identified in the scheme at the target power generation works.These risks were mainlydistinguished by means of checklists which were sourced from literature and subsequently customized for thecurrent function.A hazard assessment was conducted by initially classifying the hazards into three levels suchasLow, Medium and High.Generally 66% of the risks identified were at low risk, 32% at mediumand 2%at highdanger.This showed that in that location was sufficient awareness and dedication to safety and health at the studypower station.Meanwhile the Power Station was also certified by MS 1722:2005, OHSAS 18001, MS, ISO14001:2004, MS, ISO 9001:2000 and scheduled waste regulation 2005 which give credibility to the current fieldin making a working example which may see widespread application in the future.