16.8.1.1 Each turbine shall have its own separate
exhaust.
16.8.1.2 The exhausts shall be appropriately configured
to prevent any accumulation of unburnt gas fuel.
16.8.1.3 Unless designed with the strength to
withstand the worst case overpressure due to ignited gas leaks, pressure
relief systems shall be suitably designed and fitted to the exhaust
system, taking into consideration explosions due to gas leaks. Pressure
relief systems within the exhaust uptakes shall be lead to a non-hazardous
location, away from personnel.
16.8.2
Combustion equipment
An automatic system shall be fitted to change over easily
and quickly from gas fuel operation to oil fuel operation with minimum
fluctuation of the engine power.
16.8.3.1 Means shall be provided to monitor and
detect poor combustion that may lead to unburnt gas fuel in the exhaust
system during operation. In the event that it is detected, the gas
fuel supply shall be shut down.
16.8.3.2 Each turbine shall be fitted with an
automatic shutdown device for high exhaust temperatures.