COCN1: CORE COMMERCIAL NATURAL GAS SAFETY

To provide operatives with knowledge and skills relating to safety regulations, procedures and British Standards which must be applied when working on gas installations.

Pre-Requisite

Entrants must be from Category 1 or 2 with relevant qualifications. The Core Commercial Gas Safety is in itself a pre-requisite for all the other gas assessments.

Course Duration

5 days (3 days training and 2 days assessment).

Training Aids

Training Aids Lecture notes, audio-visual presentation and a range of domestic gas appliances and models

Assessment

Written and practical test in line with ACS accreditation scheme.

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Certification

On successful completion of the course candidates will receive COCN1: Core Commercial Natural Gas Safety certification.

Maximum Number

8 persons

Course Objective

On successful completion of this course learners will be able to demonstrate competence in relation to:

  • Gas Safety Legislation
  • Characteristics of combustion and the use of Flue Gas Analysis Equipment
  • Commercial Ventilation Requirements
  • Installation of pipework and fittings including flanges, screwed, compression, capillary, polyethylene to steel, bellows and expansion joints
  • Tightness testing low pressure and medium pressure installations
  • The operation and positioning of emergency isolation controls and valves
  • Installation of all commercial indirect/direct fired gas appliances
  • Servicing of indirect/direct fired gas appliances and radiant heaters
  • The operation and checking of appliance gas safety controls and devices and other operational safety components
  • Commercial chimney requirements
  • The re-establishment of commercial pipework and appliance installations
  • Strength testing new pipework
  • Tightness testing new pipework installations
  • Direct purging new pipework installations by direct purging methods
  • Tightness testing existing installations
  • Direct purging existing installations by direct purging methods

Course Syllabus

  • Gas Safety Legislation
  • Characteristics of combustion and the use of Flue Gas Analysis Equipment
  • Commercial Ventilation Requirements
  • Installation of pipework and fittings including flanges, screwed, compression, capillary, polyethylene to steel, bellows and expansion joints
  • Tightness testing low pressure and medium pressure installations
  • The operation and positioning of emergency isolation controls and valves
  • Installation of all commercial indirect/direct fired gas appliances
  • Servicing of indirect/direct fired gas appliances and radiant heaters
  • The operation and checking of appliance gas safety controls and devices and other operational safety components
  • Commercial chimney requirements
  • The re-establishment of commercial pipework and appliance installations
  • Installation survey and calculation of system volumes
  • Strength testing new pipework
  • Determination of test pressures for both new and existing installations.
  • Selection of appropriate pressure gauge
  • Determining the permitted leak rates appropriate to the installation location
  • Calculation of the test times and let by test times
  • Calculation of actual leakage rates and comparison with permitted rates
  • Tightness testing procedures new and existing
  • Completion of tightness testing certificates
  • Determination of purging volumes
  • Selection of a safe purging area including risk assessment
  • Safe levels for vent gases
  • Calculation of purging times
  • Direct purging procedures, commissioning and de-commissioning
  • Completion of purging records