Mains Laying (SM)

Can the team/operative explain (or demonstrate) how they would obtain information/guidance contained in work procedures if they needed it?

Do all operatives have a PAM?

Are the PAMS working and in-date?

Does the team have a Gascoseeker?

Is the Gascoseeker working and in-date?

SSRA Carried out, complied with and recorded correctly?

RA or PTW in place, and being complied with?

Risk Assessment / Trench Support / PTW where required

Trench width kept to practical minimum

Proximity to other utilities (250mm normal minimum, further protection, authorisation if clearance reduced)

Marker tape installed above main (More substantial protection e.g. tiles, PE mesh must be given to LP mains at shallow depth and MP/IP mains)

Cathodic protection fitted to new buried steel pipe

Wrapping applied to new steel pipework and fittings as per procedure

Job documentation/test certificates/ records complete

G/17 or G/19 authorised and being followed (for work on pressure systems >2bar)

Pipe bed firm

Pipe bend radius adequate

Pipe laid straight

Correct depth of cover

Finefill around pipe

Decay test carried out prior to decommissioning main to be inserted

Pipe pushed using approved pushing machine

Pipe sealed when inserting

Pipe monitored for damage (10% wall thickness)

Appropriate bend radius

Host pipe edges protected to avoid damage to PE

Correct temporary/permanent anchorage

Live insertion equipment used per manufacturer's instructions

Bypass installed (unless authorised by operations manager)

Pressures monitored

Pipe pushed using approved pushing machine

Appropriate bend radius

Correct temporary/permanent anchorage

Mains tested prior to insertion

Mains tested after insertion

Soil Displacement Moling procedure followed

Specific PPE used (electrically insulated boots/gloves)

All plant located (trial holes necessary)

Launch cradle used if practicable

Launch away from plant

Lubricator used

Minimum launch depth (10 x diameter of soil displacement hammer recommended)

Test equipment used correctly (also, testing equipment record sheet available and up to date)

Joints wrapped only after successful pressure test (except for steel mains)

Test procedure followed - test pressure/duration/pressure loss

Pressure test documentation completed

Main on test signs displayed (particularly where main on test is exposed and readily accessible to the public)

Main kept at 350mbar air pressure if full commissioning delayed

Coil dispenser used correctly

Coils stacked correctly

Straight lengths stored correctly

Pipe checked for damage (10% wall thickness)

Correct proximity distances between fittings

Squeeze-off points far enough away from joints/fittings

Squeeze-off re-rounded and taped

Fusion box in-date and fit for purpose

Electrical connectors in good condition

Fittings in protective bags up to point of use

Pipe marked to show correct alignment in the fitting

Correct/appropriate use of mains and service pipe and bend alignment clamps

Use of PET on peel-able pipe

Loading tool used (tees) and correct force applied (Has the loading tool been calibrated annually)

Pipe scraped and cut square

Fusion cycle completed correctly and correct cooling time applied

Visual inspection carried out (Contamination and/or exuded molten plastic)

Fusion indicators risen evenly

Butt fusion equipment and fusion box in-date

Machine fully automatic

Electrical connectors in good condition

Trimmer clean and free from debris

Was the first weld of the day cut out and discarded?

Precautions to protect against adverse weather (e.g. shelter, end caps to prevent wind chill)

Pipe roller supports used

Joints left in fusion machine until the end of the fusion cycle

Beads removed and measured using bead gauge

Beads numbered and retained

Is the relevant NRO/RO/PTW Available (does it reflect the site activity)

Is the competent person on-site?

Is the NRO/RO/PTW being applied with?

Independent pre-start check has been completed where applicable (i.e. where the operative is the CP)

Excavations> 1.2m Trench support and PTW or Site specific risk assessment has been completed (The PTW or separate method statement must specify the type of trench support required)

Has correct isolation been employed (right number of bags etc)

Bagstop/Foam plugging equipment used correctly

Use of squeeze-off

Squeeze-off indication tape applied at squeeze-off point

Bypass used

Are all pressures being monitored (adequate gauges)

UP tee fitted and tested correctly

Soundness test (leak detection fluid) carried out

End cap restraints / anchorage fitted

Continuity bond / wet rags applied

Expandable stoppers fitted in ends of pipe, downstream of stopping off equipment if the pipe is not to be Immediatley connected or capped off.

Pressure decay test applied correctly

Purging procedure completed correctly

Purge standpipe/Ejector used

Live service isolation kit being used

BA is being worn as required by procedure and/or where gas readings in the general atmosphere are >20% LEL and increasing

BA is assembled and ready for use when it is reasonably foreseeable that gas may be, or become, present in the work area

BA inspection card is up to date

BA equipment is in date and in good condition (eg mask clear, undamaged hose etc)

All pits, and excavations are guarded where work, or no activity is taking place

Voltstick used on all metallic pipes and correct action if faults identified

Project Pack on-site (CDM, CPP)

CDM,CPP Understood?

CAT and Genny in-date and fit for purpose

SW3 RA in place where required

SW3 PTW in place where required

Spill kits available

Liquid containers labelled and fit for purpose

Filtered funnel available for re-fuelling

Waste/Spoil stored correctly

Noise and Dust kept at a minimum for MOP's