SKF Reliability Systems - Library

Vol 23 No 3 AMMJ 39
PM Reviews at Sydney Water
Table notes for Figure 4 & Figure 5:
1. HIDRA Maintenance Safety
Risk:– The HIDRA assessment for
“Maintenance Safety Risk” is the risk
to personnel while maintenance is
being performed on the asset.
2. HIDRA Process Risk - The HIDRA
assessment for “Process Risk” is
the risk to the Process failing if this
maintenance activity is eliminated
(both Operational & Environmental), if
“run to fail” strategy is adopted for the
asset.
3. Type of Maintenance overall - CBM
/ COM / PSM / RFM
a. CBM = Condition Based Monitoring
b. COM = Combined Time/Meter and
Condition Based Monitoring
c. PSM = Periodic Time or Meter
Maintenance Only
d. RFM = Run to Failure
4. Type of Preventative maintenance
a. Lub = Lubrication Maintenance
b. M = Mechanical Maintenance
c. E = Electrical Maintenance
d. I = Instrumentation Maintenance
e. O = Operational Maintenance
f. VIB = Vibration Monitoring
g. OIL = Oil Chemical Analysis
h. Thermo = Thermal Image Analysis
i. MCA = Machine Current Analysis
j. Other = Any other Maint. type
Assessment Financial 1 Political /
Reputation
Catastrophic
Very High impact
with very
significant
consequences
Severe
High impact with
major
consequences
Corporate: >
$100m
Project: Cost
overrun >= 50% of
project budget
Corporate: >
$50m - $100m
Project: Cost
overrun > 20% and
< 50% of project
budget
Corporate: >
$10m - $50m
Moderate
Project: Cost
Noticeable impact
with clearly visible
consequences
overrun > 10% and
< 20% of project
budget
Loss of Govt and
widespread
community
confidence.
Sustained key
adverse media.
Considerable Govt
and community
concern. Key
adverse media.
Some public
concern raised.
Adverse local
media.
Corporate: > $5m -
$10m
Minor
Project: Cost
Minor impact with
Minor public
overrun > 5% and
some
concern.
< 10% of project
consequences
budget
Insignificant
Very minor
impact with
unimportant
consequences
Corporate: < $5m
Project: Cost
overrun < 5% of
project budget
Minimal public
concern.
Environment
Large scale, irreversible,
uncontained harm to the
environment.
Large scale, long-term
(>2 years), uncontained
harm to the environment.
Small scale, mediumterm
(1-2 years),
uncontained harm to the
environment eg small fire
on SW site that damages
adjoining protected
bushland
Catastrophic
Severe
Moderate
Minor
Insignificant
Levels
Very Likely
Likely
Unlikely
Very Unlikely
Figure 6 HIDRA Information – Level of Risk Matrix
Very Likely Likely
Unlikely Very Unlikely
1
1
2
3
4
Description
1
2
3
4
5
Figure 7 HIDRA Information – Likelihood Descriptions
Safety (Sydney Water
& Public Safety)
Fatality, amputation of
limb, person on life
support, other
immediately life
threatening incidents.
W idespread serious
injuries or illnesses.
A serious injury or long
term illness, or lost time
injury (minimum 1 day
lost per injury).
Significant near miss
incident; Injury or illness
requiring medical
treatement.
The event could happen sometime (50% - 90%)
Will probably occur at some time within a 12 month period
The event could happen but very rarely (10% - 50%)
Might occur at some time in a 12 month period
The event could happen but probable never will (< 10%)
Unlikely to occur within a 12 month period
2
3
4
5
6
The event could happen at any time (> 90%)
A strong probability of multiple occurrences within a 12 month period
Customers Public Health Performance 2
Complete disruption
to services > 1
week. Affects >
30% of SW C
customers.
Partial disruption >
2 days. Affects
10% to 30% of
customers in
system.
W idespread
complaints.
Unreliable services.
Increase in number
of complaints. 5% to
10% of customers
affected.
Short-term (< 1 year),
reversible, contained Illness or injury requiring
Multiple customer
harm to the environment. first aid eg. Minor burns,
complaints.
eg. Damage to a heritage abrasions, sprains.
listed building
Temporary, reversible,
environmental
Near misses incidents.
degradation eg. Industrial
noise emissions at night
Isolated customer
complaints.
W idespread
illness / fatalities.
Serious illness
requiring
hospitalisation.
Deterioration in
water quality
parameters.
Reportable event.
Increase in
illness.
Very significant nonperformance
against:
. corporate goals and
targets
. project objectives and
targets.
Significant non-performance
against:
. corporate goals and
targets
. project objectives and
targets.
Non-performance against:
. corporate goals and
targets
. project objectives and
targets.
Deterioration in Some non-performance
water quality against:
parameters. . corporate goals and
Reportable event. targets
No increase in . project objectives and
illness.
targets.
Non-reportable
event.
Very minor non-performance
against:
. corporate goals and
targets
. project objectives and
targets.
3
4
5
6
6
Compliance
Significant compliance
breach - may result in:
Operating Licence
sanction, high-impact
prosecution eg Tier 1
POEO Act offence.
Compliance breach -
may result in severe
enforcement action,
regulatory sanction or
prosecution eg Tier 2
POEO Act offence.
Compliance breach -
may result in Ministerial
requirement,
enforceable undertaking
or statutory fine eg
POEO Act Penalty
Infringement Notice.
Compliance breach -
may result in minor
corrective action or
business requirement.
Technical compliance
breach with limited
material impact.
Financial limits for projects are a guide only. Actual amounts should be set at an appropriate level (based on business case value) for each individual project prior to conducting a risk assessment.
Performance category descriptions are a guide only and may be further enhanced by divisional procedures.
Figure 8 HIDRA Information – Consequences Details