JOB HAHARDS ANALYSIS ( JHA ) FOR PREVENTIVE MAINTENANCE
Project Name : PREVENTIVE MAINTENACE
Client: EHS LENS
Location :
Date: December 6,2020
No Task Hazard Risk Persons in danger Risk control measures
social distancing ,wear facemask, face shield,
1.0 Mobilization covid 19 virus infection from covid 19virus all
maintain good hygeine
Clean/ clear surface of slippery substance.
2.0 hauling of materials and equipment Slippery surface Trip, slip, fall on the same level Workers Observe good housekeeping. Awareness
in the surroundings
Awkward Posturing Body Pains, Dislocationb of bones Workers Ergonomics, proper posturing technique,
3.0 Cable Laying for temporary power supply
obstruction on the walkway strip and fall to the production personnel all provide caution tape
Comptent worker with NCII, LOTOTO, use PEE's
3.0 set in place of temporary breakers Exposure to energized wires/panels Electrocution, Electrician.
& Voltage detector.
assign Experienced Electrician , use electrical
Exposure to energized wires/panels Electrocution, Electrician. gloves when live wires & check Voltage on the
4.0 Terminations system using multimeter or voltage Detector
sharp edgesof wire and terminal small wound Electrician. wear working gloves
Damage of property and can hit to proper position of equipment into truck and correct
5.0 Delivery and hauling of Generator sets Heavy Equipment Falling from truck
people resulting to death methodology of lifting.
SHUTDOWN WORKS
Transformer
7.0 Deenergization of main power High voltage Elecricution electrician wearat least 35kv high voltage gloves,
check the system voltage on primary lines using
High voltage Elecricution electrician wearat least 35kv high voltage gloves,
high voltage Detector
check the primary line voltage using voltage
presence of electrical power Elecricution Workers
Detectror
discuss on toolbox meeting the proper usage of
Removal of Transformer cover improper use of tools damage of propery workers
tools
calculate and verify the safe method to move the
slide or falling of cover hit to people injury and wound workers
cover
live current Elecricution electrician verify the system prior to work
discuss in toolbox meeting the safe method, and
flexible cable can hit during dismantling injury worker
Disconnect all Terminated cable awareness of work .
mixing of different cable resulting to not put marking or tagging in the cable prior to
wrong connection resulting to short circuit worker
determine the correct connections dismantle
license engineer can conduct testing or technician
wrong methods damage of propery worker
with the supervision of license engineer
conduct testing ,IR people not aware on the activity, accidentaly electrocution the the people and damage of
worker watchman, and inform all manpower around
touch the equipment property
not good recording of data repititive works and damage of property worker inform and secure all recording data
Test Voltage from Test Equipment Trapped
test engineer & worker
Charges Electric Shock discharge equipment under test
Transformer oil, PCB Oil under pressure from provide oil drain plate with rags and secure bottle
test engineer & worker
Power Transformer Oil Sampling head of oil Skin irritation, environmental harm sampling
Complete and Clean up Failure to isolate, discharge and earth all test wait the instrument discharge the test voltage or
test engineer & worker
Undischarged or energised test equipment equipment current
put marking or tagging in the cable prior to
dismantle and donot remove tagging .
wrong connection short circuit when energize worker
Return the connection or terminations conduct test for verification in case of happen
loss of connection or untighten the terminals power failure worker Apply torqueing on the terminals
Return cover of transformer
Wear safety shoes and ask help to others to put in
heavy and slippery materials dropdown into youyr legs and hit other equipment worker
place the cover
LOW VOLTAGE SWITCHGEAR
Dusty enviroment Eye irritation; skin irritation; respiratory problem worker wear facemask
General cleaning of panel boards
Check SDS for Exposure Controls/Personal
chemical hazard from wipe out Severe damage when contact with living tissue worker
Protection; wear working gloves and wear facemask
Cumulative Trauma Disorder (CTD) - De
Forceful hand exertion (twisting and forceful Quervin's disease, pain tenderness and swelling Have a rotation schedule for the activity. Have a
retightening/torqueing of bolts worker
gripping motions with hands) over the thumb side of the wrist and difficulty in scheduled time frame for the activity.
gripping.
drawout the switchgear fall off the breaker leg injury and damage of property worker good handling -assign experience personnel
chemical from contact grease and contact
cleaning of breakers Eye irritation; skin irritation; respiratory problem worker wear facemaseye goggle and working gloves
cleaner
Test Voltage from Test Equipment Trapped worker
Charges Electric Shock discharge equipment under test
conduct testing of breaker,IR and contact
damage the electrical system and other proper worker inform the item is not safe to use as protection of
failed test result when energized the system
Test Voltage from Test Equipment Trapped
worker
Charges Electric Shock discharge equipment under test
find the defective insulation materials and make
worker sure conduct I.R test after general cleaning and
conduct testing of busbars
failed test result of insulation short circuit when energize torqueing
worker ensure all bolts are torque as per standard standard
failed test result of contact resistance heat occur on join or connection when energize of ANSI/NETA
Test Voltage from Test Equipment Trapped
conduct testing of fuses worker
Charges Electric Shock discharge equipment under test
Overexertion/ Improper lifting of heavy Injury; Body pain (work-related musculoskeletal Observe proper lifting procedure. Be aware of the
worker
objects disorder, WMSD) weight to be carried
Draw in the switchgear
assign experience personnel,discuss in toolbox
improper draw in Damage of Property worker
meeting
high voltage electricution electrician/lineman qualify personnel do this job,
ENERGIZATION of meralco supply short circuit cause of unclear materials short circuit when energize- damage of property worker double check the panel or equipment prior to energize
return power supply to all facilities short circuit cause cause from temporary power Damage of Property/electricution maintenance personnel/ engineer disconnect the temporary power supply and return
supply original connection
