Volume-II of IV - GAIL

MECON LIMITED
REGD. OFF : RANCHI (BIHAR)
PROCESS & PIPING
DESIGN SECTION
NEW DELHI
STANDARD SPECIFICATION
TITLE PIPELINE PRE-COMMISSIONING SPECIFICATION NO. PAGE 4 OF 8
AND COMMISSIONING OF
PIPELINE PROJECT MEC/S/05/62/61 REVISION - 1
ii) Checking of Field Instruments
All the field instruments like control valves, sectionalising valves,
transmitters, solenoid valves, shut down switches, alarms etc. shall be
checked physically and also for their intended application by simulating
the operating conditions. It will also include checking of different
meters, gauges action of shutdown valves etc. as applicable.
iii) Survey of the Pipelines
This shall be performed to confirm that proper fittings/ supports, route
markets, fencing around SV Stations etc. have been intalled along the
pipeline.
iv) Checking of Communications System
This is to check that there is proper communications with adequate
back-up power to ensure uninterrupted communication.
v) Checking of Electrical Distribution System
This is to ensure safety and also to ensure an uninterrupted power
supply during startup and normal pipeline operation.
vi) Checking of Instruments, Controls & Interlocks
This is to check that instrument controls and interlocks are functional as
per the normal operating conditions.
vii) Checking of Utilities
This is to check that utilities like power, nitrogen, UPS system
instrument air, etc. are available prior to startup.
viii) Any other checks as may be considered necessary.