MDG-TSG-LP-012.321

Has a Risk Assessment been carried out?

Has a Method Statement and NRO been issued for construction?

What reference documents are used (TD/1, P10, PEI/E20)?

Have roles and responsibilities been defined?

What PPE must personnel wear who are involved in work?

Why has a split tee been specified, have alternative forged tees been considered?

Has a permit to work been issued, has it been signed by the appropriate personnel?

Who is responsible for the operation, have they received the appropriate SCO training?

Has an emergency procedure been issued, are personnel aware of it?

What emergency equipment is available in the work area, are personnel trained to use it?

Have STCs been carried out for all appropriate personnel?

Are LDZ personnel present during the P9 welding operation?

Has System Control been notified of the operation?

What pressure is gas in the main pipeline?

What other operations are underway that may affect this work (pigging/OLI runs)?

Have operators and inspectors been inducted, trained and received Tool Box Talks?

Are welders P9 approved?

How is work scheduled to minimise the number of personnel in the immediate work area?

What reinforcement and support has been provided in the excavation?

Is access and egress from excavation safe and unobstructed?

What lifting equipment has been provided, is it suitable and safe?

What PPE must operatives and inspectors use?

What gas monitoring is carried out, are gas monitors approved and calibrated?

What gas pressure monitoring is carried out during the P9 operation?

Have safety barriers been erected and warning signs displayed?

Has the process satisfactorily completed Weld Qualification Tests?

Has an approved weld procedure been issued for construction?

Do procedures define heating requirements, how is temperature monitored?

Is temperature monitoring equipment and method approved?

What is the method of pre-heating to be used, is it approved , max. 250°C)?

How is heat source isolated or switched off in an emergency?

What interpass heating is carried out ( min. 150°C)?

Have materials been procured from approved sources?

Have test and material certificates been obtained for all materials and weld consumables?

What inspections and tests are carried out and at what frequency?

Has a P9 repair procedure been issued for construction?

Are procedures available at welding locations?

Has linepipe been checked for ovality and laminations prior to welding ?

Has preparation of linepipe and tee been carried out in accordance with ?

Have yoke type clamps been fitted around tee?

Have backing bars been fitted ?

Is the longitudinal welding sequence as defined in P9?

Has the time taken for the temperature to fall to 150°C been recorded ?

Is the circumferential welding sequence as defined in P9?

Have all necessary inspections been carried out ?

Where defects have been identified has assessment of defects been carried out (P11)?

Have weldolet, long weld neck flanges or CP plates to be welded to the pipe ?

Have required inspections of these attachments been carried out ?

What welding records are maintained and retained?

What happens to the permit on completion of the work?