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| Question | Answer |
| GSIUR 1998 reg 26 (9) | (9) Where a person performs work on a gas appliance he shall immediately thereafter examine – (a) the effectiveness of any flue; (b) the supply of combustion air; (c) its operating pressure or heat input or, where necessary, both; (d) its operation so as to ensure its safe functioning, and forthwith take all reasonably practicable steps to notify any defect to the responsible person and, where different, the owner of the premises in which the appliance is situated or, where neither is reasonably practicable, in the case of an appliance supplied with liquefied petroleum gas, the supplier of gas to the appliance, or, in any other case, the transporter. |
| GSIUR 1998 reg 34(3) | 3) Any person engaged in carrying out any work in relation to a gas main, service pipe, service pipework, gas storage vessel or gas fitting who knows or has reason to suspect that any gas appliance cannot be used without constituting a danger to any person shall forthwith take all reasonably practicable steps to inform the responsible person for the premises in which the appliance is situated and, where different, the owner of the appliance or, where neither is reasonably practicable, in the case of an appliance supplied with liquefied petroleum gas, the supplier of gas to the appliance, or, in any other case, the transporter. |
| GSIUR 1998 reg 34(4) | (4) In paragraph (3) above, the expression “work” shall be construed as if, in the definition of “work” in regulation 2(1) above, every reference to a gas fitting were a reference to a gas main, service pipe, service pipework, gas storage vessel or gas fitting. |
| RIDDOR Reporting | Within 14 days or 2 hrs if death or hospitalisation occurs. |
| Gas tightness test | visual inspection Appliances off, pilots extinguished Cooker lid open ECV turned off Remove test nipple Attach zeroed manometer Let by 10mbar for 1 min (0.25mbar) 20mbar -1min stabilisation Tightness 20mbar for 2 mins |
| Gas tightness- permitted drops | 28mm -35mm E6. 8mbar - 4.5mbar U6/G4. 4mbar - 2.5mbar U16/G10. 1mbar - 1mbar |
| Purge procedure | Meter G10/ U16 up to 35mm calculation required Meter E6,G4 or U6 up to 28mm- 0.01m3 (0.35ft3 for U6 meter) Advise customer- open doors and windows- note meter reading- purge furthest point- test joint for tightness- check appliances burning correctly |
| Operating pressure at meter | Between 19 and 21mbar- no more than 1mbar drop over installation |
| Gas rating E6 / G4 | Full rate for 2 mins- x30 for hourly consumption (m3/hr) - covert to cubic feet x 35.31-convert to btus x 1040- convert to kW devide by 3412- devide by 1.11 for (net) kW |
| Gas rating for U6 meter | Full rev in seconds-3600 divide by seconds=ft3/hr-convert to btus x 1040- divide by 3412 for kW - devide by 1.11 for (net) kW |
| Work | In relation to a gas fitting, this includes any of the following activities carried out by any person, whether an employee or not: a) Installing or reconnecting the fitting; b) Maintaining, servicing, disconnecting, permanently adjusting, repairing, altering or renewing the fitting or purging it of air or gas; c) Where the fitting is not readily movable, changing its position; and d) Removing the fitting. Note: Work in this context does not include the connection or disconnection of a bayonet fitting or other self-sealing connector. |
| Trigger points (interruption) | location > Flueing > Ventilation > Signs of distress > stable and secure > Flame picture |
| Additional ECV | Meter more than 6m from dwelling |
| Pipe supports copper | 15mm vertical 2m horizontal 1.5m 22mm or above vertical 2.5m horizontal 2.0m |
| GSIUR 1998 covers | responsibilities of people including those: Installing, servicing, maintaining or repairing gas appliances and other gas fittings. as well as: suppliers and users of gas and certain landlords |
| Pipe sizing | Remember- max pressure loss of 1mbar divide 1mbar by number of sections total pipe length including fitting (0.5m for each elbow or tee. 0.3m for 90deg bend) x number of sections |
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