Domestic Periodic Testing in Lincolnshire with Hallgate

Sandringham Caravan Park

Scope of works
The work was basically to comprise of the following:
• Construct plinth for GRP enclosure
•To erect free standing purpose built mains cabinet including all necessary enabling works
•Re-cabling work
•To install additional hook ups

Schedule of works
• Dig out trenching approx. 330m at a spades width that must be 800mm deep with flat bottom
• Allow for the construction of plinth for new GRP enclosure
• Allow for making all necessary excavations compact soil to reduce levels and supply and lay hard core base
• Supply and lay 150mm deep MOT type 1 laid in two layers and well compact by mechanical means include for incorporating structural matting beneath as type geolay 609 or equivalent

• Remove existing mains panel and replace with new free standing unit containing the following: -
• 1 – 800amp MCCB mains isolator
• 2 – 160 amp MCCB/RCD feeding existing 50mm x 4 core to d/u via 3 phase fuse carrier fused at 80amp and new 50mm x 4core to d/u 5 via 3 phase fuse carrier fused at 63amp
• 3 – 250amp MCCB/RCD feeding existing jointed through 300mm x 4 core to d/u 3&4
• 4 – 160amp MCCB/RCD feeding existing jointed through 185mm x 4 core to CCU.A+1 via 3 phase fuse carrier fused at 100amp
• Remove incoming and outgoing 300mm x 4 core cable from d/u2 and joint straight through to d/u 3
• Remove existing bollard d/u2a and replace with enclosure type d/u mounted on frame with cable shroud, joint and extend cable as required
• Remove existing incoming and outgoing cable from d/u5 and joint straight through to d/u6 replace existing bollard d/u5 with enclosure type d/u mounted on frame with cable shroud install new 50mm x 4core from mains panel
• Allow excavation to reduce levels for 20no new concrete service bollards plinths 250mm below ground level and 480mm long x 480mm wide
• Install new 3 way /2 way bollard to rear of proposed new hard standing pitched x 20 and install 16mm 2 core cable from new d/u's to new bollards x 20
• Upgrade all 10amp sockets to 16amp if not already
• Check phase balance and adjust if required
• Test and inspect the site.



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