gmb_safety aspects of gas piping system for residential and commercial customers
TRANSCRIPT
SAFETY ASPECTS IN GAS DISTRIBUTION FOR RESIDENTIAL AND DISTRIBUTION FOR RESIDENTIAL AND
COMMERCIAL CUSTOMERS
Table of ContentsTable of Contents
• Safety Responsibility
Safety Tips• Safety Tips
• What to do when there is no What to do when there is no gas supply
• Our Recommendations
Demarcation of ResponsibilitySafety Responsibility
Demarcation of Responsibility
1000 psig
GMB Responsibility
Building Management Responsibility
Owner Responsibility
DistributionLine
GU
OdorizerStation Feeder
Line
DistrictStation City Gate
RegulatingStation
4.3 psig
M
M
PG 260 psig 60 psigInternalPiping
M
M
Multiple Endusers/Shopping Complexes
InternalArea Station
= METERM0.43 psig
Internal Piping
M
DistributionLine
60 psig
Area Station
= METERMResidential
Responsibility by GMBSafety Responsibility
Responsibility by GMB
• GMB is responsible for main system
up to station outlet inclusive of gas
metermeter
Operations and maintenance
Odorisation
OdorisationSafety Responsibility
Odorisation
• Regulatory Requirement
Odor is added at the odoriser
stationstation
Gas shall be detectable when the
density of gas in air is 1%
Odorant InspectionSafety Responsibility
• To ensure sufficient odorant content
Odorant Inspection
is maintained
• Inspection Frequency:
Every 3 months at strategic stations
and random buildingsand random buildings
Daily monitoring at strategic
location
Safety Features of GMB SystemSafety Responsibility
Safety Features of GMB System
• Isolation valve before station
• Overpressure design in the station
• Emergency Shut-Off Valve
Responsibility by Building Safety Responsibility
Responsibility by Building Management or Owners
• Building management is responsible Building management is responsible
from station outlet to gas meter inlet
• Owner is responsible from gas meter
outlet to appliances
Safety Features of Building Safety Responsibility
y gManagement or Owners System
• Solenoid valve
• Meter valve
• Riser / shut off valve
• Gas detector
Customers shallSafety Tips
Customers shall
• Understand gas characteristics
• Aware of gas leaks
• Always inspect piping and • Always inspect piping and installation
• Always keep appliance attended
Safety Tips
• Ensure the right flame for cooking• Ensure the right flame for cooking
• Shut the appliance valve after work / pp /cooking
E d til ti f • Ensure good ventilation for appliance
• Keep good appliance maintenance
If Leakage OccursSafety Tips
• Do not turn on / off electrical switches
If Leakage OccursDo not turn on / off electrical switches
• Stop cooking – turn off appliances
• Open up windows and doors
• Conduct leak check
• Shut the relevant valve
C ll GMB (if )• Call GMB (if necessary)
In Case of Emergency / FireSafety Tips
In Case of Emergency / Fire
• Shut off the ESV / Solenoid valve
E t• Evacuate
• Call BOMBA• Call BOMBA
• Call GMB
How to Identify LeaksSafety Tips
G ll
How to Identify Leaks
• Gas smell• Hissing sound (if any)g ( y)• Presence of insects• Pressure drop• Unusual high billUnusual high bill• Conduct leak check
For tenantsWhat We Do When There is No Gas Supply
For tenants
• Check the appliance:Check the appliance:Open the knobCheck the spark
• Check the gas valve in the Check the gas valve in the kitchen
• Check the rubber hose
What We Do When There is No Gas Supply
• Check the payment status• Check the payment status
• Check the meter valveCheck the meter valve• If problem persist, contact the
b ildi t building management
For managementWhat We Do When There is No Gas Supply
For management
• Check the meter valve
• Check the riser valve• Check the riser valve
• Check the solenoid valveCheck the solenoid valve• Purge at the customer’s
liappliance
• If the problem persists, call GMB e p ob e pe s s s, ca G
Customer shallCustomer shall
• Install safety devices:
Solenoid valveGas detector
• Engage a competent person
Our Recommendations
E t bli h i ti • Establish an inspection program
Visual inspectionVisual inspectionLeak check
Customer’s Responsibility
• Maintain piping color codes
f• Engage competent person for any piping modification
• Monitor any renovation works