Risk Assessment Form
#23 Activity-Based Risk Assessment for N6 Grounding & Lightning Protection Upgrade
Inventory of Work Activities
Company: PNH Resources LTD PTE
No.
1
2
3
4
5
Process Description
Work to be performed by a sub-contractor.
December 2010
Work Activities
Lightning channeling strips to be installed around the south end of building
7-4 in addition to upgrading the grounding system for N6
Risk Assessment Form
Activity-Based Risk Assessment Form
Company:
PNH RESOURCES PTE LTD
Conducted by: (Names, designations)
(Date)
EM 385-1-1
Ministry of Manpower Requirements
Last Review
December 2010
Date:
Process/Location:
N6 Grounding and Lighting Protection
Upgrade ES-0030-19
Approved by:
Mr. Lee Wilson
Alice Wilson
(Name, designation)
Senior Safety Manager PWD
(Date)
December 2010
December 2010
1. Hazard Identification
2. Risk Evaluation
1a
1b
1c
1d
2a
No
Work Activity
Hazard
Possible
Accident/
Ill Health &
Persons at Risk
Existing Risk
Control
(if any)
Working
outdoors – Heat
Stress
Heat Cramps
Heat Rash
Heat Syncope
Heat Exhaustion*
Heat Stroke**
Personnel
performing lawn
care work
Tool Box Talk
Training
concerning heat
stress, clean
drinking water at
all job sites,
sufficient rest
periods for
workers in
accordance with
NAVMED P-5010
and Ministry of
Manpower
Recommendations
2b
2c
Rajadurai Kumar
PNH Industrial Manager
December 2010
Next
01 May 2011
Review
Date:
3. Risk Control
2d
3a
3b
Action Officer
Designation
Severity
Liklihood
Risk
Level
Additional Risk Control
Moderate
Remote
Low
Continue emphasis on heat injuries
whenever safety stand downs, events,
tool box talks etc.. are planned.
Ensure that drinking water is always
available for crews working in heat
stress conditions. Ensure that sub
contractors receive training on the
Heat Stress Program observed at the
Sembawang Compound including the
use of colored flags and what they
mean as follows:
1
2
3
4
5
*If not treated
properly can
progress to heat
stroke.
**Life
Threatening and
is a real medical
Safety
Manager
emergency.
Definitive medical
assistance must
be summoned.
Heat Stress
(Color)
Green
Yellow
Red
Black
Condition
Calculations:
WBGT = WB X 0.7 + DB X 0.1 + GT X 0.2
Meter calibration should be manually verified every 3 months. Manual calculation must be 0.2 + the meter WBGT readout
I
II
III
IV
Heat Stress WBGT
Temperature
82-84.9
85-87.9
88-89.9
Above 90
Activity Level
Discretion is required when planning heavy exercise for acclimatized personnel.
Strenuous exercise and activity for new and un-acclimatized personnel during the first 30 days of heat exposure.
Strenuous exercise should be curtailed for personnel with less than 12 weeks of training in hot weather.
Physical training and exercise should be curtailed for all personnel (operational commitments excluded).
Heat stroke likelihood is high under conditions of high exertion.