Elements and Performance Criteria

Pipeline Control Systems include Compressor systems and equipment (compressors, monitoring systems, power supply systems, pumps, coolers, scrubbers, expanders, anti surge systems, safety systems and compressor control systems)
Prime movers may include turbine engines, reciprocating engines, electric motors (fuel and carburation systems, ignition systems, lubrication systems, induction and exhaust systems, governing systems, power supplysystems, safety and shutdown systems)
Instrument and control system, (flow control equipment, pressure and temperature transmitters and transducers, telemetry equipment, gas chromatographs, moisture analysers, gas sampling equipment, PLC's)
Valve system (non-control valves, control and shut off valves, non-return or check valves and pressure relief valves and manual hand operated actuator, gas/hydraulic actuator and pneumatic valves)
Emergency Responses include gas leaks and fire; equipment failure; hazards and incidents
Relevant personnel may include supervisors; maintenance personnel; organisation employees; contractors; government bodies
Tools, Equipment and testing devices include handtools; valves, actuators andflanges; heaters and heat exchangers; metering equipment; process control equipment; gas analysis equipment; piping systems; sumps and drains; pressure vessels/filtration equipment; prime movers; pumping systems and equipment; compression systems and equipment; PIG
Types of faults may include gas leaks; electrical problems; compressor or pump failure; out of current inspection status; gauge failure or hose rupture/leaks; instruments out of calibration; non-flow of gas; instrumentsand equipment require cleaning
Reports may include routine inspections (daily readings, monthly checks); scheduled maintenance activities; mandatory or statutory inspections; hazard and incident reports

Critical aspects of evidence
Reading, analysing and interpreting data; correctly diagnosing and assessing faults; correct use of testing and inspection equipment; accurate documentation of faults; application of emergency response systems; knowledge of permit to work system including types of permits and limitations; use of emergency equipment including fire fighting equipment
Context of assessment
Assessment of competency, including attainment of relevant knowledge and skills may be made through practical demonstration in an actual work environment or simulation of such an environment.
Specialised resources required for training and assessment
Availability of suitably qualified industry assessors; system which facilitates recording of trainees' profiles and progress; facilities for workplace or simulated environment assessment
Pre-requisites and Co-requisite
This unit should be assessed after competency has been demonstrated in Unit NGS 310 A Perform Routine Maintenance on Pipeline, Facilities and Equipment, Unit NGS 312 A Co-ordinate Repair of Pipeline, Facilities and Equipment plus two of the following Units: Unit NGS 303 A Commission/Decommission Pipelines, Unit NGS 306 A Co-ordinate Pipeline Repair and Modifications, Unit NGS 307 A Launch and Recover PIG, Unit NGS 240 A Maintain Cathodic Protection System, Unit NGS 309 A Install Cathodic Protection Systems, Unit NGS 313 A Control Gas Odourisation and Unit NGS 316 A Co-ordinate Construction, Laying and Testing of Gas Distribution Pipelines and the following Frontline Management III Competency Standards:
Knowledge and Skills
The Evidence Guide is a set of guidelines which assist in the development of assessment instruments/tools to assess the competency of workers in the Gas Industry. This requires evidence of consistent achievement of the workplace outcomes covered by the unit.
An employee working at this level is required to perform piping/venting/purging and recommissioning of compressors; interpret technical drawings; demonstrate an awareness of compression flows and characteristics; understand the characteristics, operation capabilities and limitations of tools and equipment including prime movers, pumping and control systems, pipeline facilities and their equipment; adhere to and apply OH&S and EPA legislative requirements; demonstrate an awareness of product characteristics and tolerances; use and interpret test equipment results; communicate effectively with team members; understand and adhere to SOPs including accurately reporting and documenting findings; operate gas analysis equipment; understand the alarm and communications systems; operate systems such as pumps, compressors and valving, shutdown systems; carry out inspection test procedures; communicate effectively