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Safety Performance 55
Maintaining the integrity of our pipeline network
is crucial to business success. We pay great
attention to strengthening our trench inspections
and have undertaken more in-depth leakage
surveys while upgrading ageing pipes. In addition,
our sophisticated Supervisory Control and Data
Acquisition system (SCADA) allows us to monitor
and control more than 3,500 real-time telemetry
points. This helps our entire network, including
every strategic pressure-regulating station,
to operate smoothly. If an incident does occur,
our remote control, emergency logging and
geographical information systems will enable us
to respond quickly, efficiently and accurately. In
2016, we carried out 176,925 inspections at 12,606
sites, and surveyed 6,817 km of pipeline.
Network Safety
Further efforts to improve safety include Quality
Testing Services Limited, our wholly-owned
subsidiary, which is accredited under the
Hong Kong Laboratory Accreditation Scheme
(HOKLAS) for gas meter collaboration services,
gas appliance testing, stainless steel gas tubing
and PE fitting. Another is our Pay For Safety,
Quality and Environmental Appraisal System,
which recommends that contractors ask their
staff to demonstrate responsible awareness when
working on pipe-laying contracts. If specified
criteria are met, contractors receive a bonus of
1% to 2% of the contract sum. Schemes such as
this are not new in Hong Kong, but our system is
unique because 50% of the incentive total is paid
directly to frontline workers.
Network Safety Performance 2016
Leakage and Pipeline Surveys
Area
Results
Target
Gas Supply Reliability
99.991%
>
99.99%
Gas Incidents Reported by the Public per 10 km of Gas Pipes
0.18
<=
0.15
Third-party Damage Incidents
13
<=
7
Emergency Team Average Arrival Time within 25 minutes
Achieved
Type of Pipeline
Frequency of Leakage Surveys
All HP & IPB Mains
At least once a year
Medium-pressure Ductile Iron Pipes or All-galvanised Iron Pipes
At least six times a year
Low-pressure Ductile Iron Pipes
At least three times a year
PE or Steel Pipes Over or Enclosed within Structures
At least twice a year
Others
At least once a year