NOTES Fittings on pipes shown with the appropriate pipe in Class I

RESOURCESLABOUR

Fittings and valves gang

1 ganger/chargehand (skill rate 4)— 50% of time

5.33

1 skilled operative (skill rate 4)

10.16

2 unskilled operatives (general)

19.04

1 plant operator (skill rate 3)

12.38

Total Gang Rate/Hour

£ 46.91

RESOURCESPLANT

Fittings and valves

1.0 m3 hydraulic backacter

26.60

disc saw-30% of time

0.36

2.80 m3/min compressor, 2 tool-30% of time

1.14

2t dumper-30% of time

0.96

compressor tools, extra 50 ft/15 m hose-30% of time

0.07

small pump-30% of time

0.49

sundry tools-0.27

VALVES AND PENSTOCKS

Valves Non-return valves; cast iron; single door; tidal flap

250 mm 0.40 21.24 5.98 216.43 nr 243.65 350 mm 0.40 18.76 5.98 394.91 nr 419.65 450 mm 0.70 32.84 5.98 514.21 nr 553.02 600 mm – – 8.98 818.52 nr 827.50 800 mm 0.75 35.18 10.46 1530.00 nr 1575.64 Penstocks; cast iron; wall mounted; hand operated

250 mm 1.66 77.87 10.46 278.80 nr 367.13 350 mm 2.30 107.89 11.96 393.55 nr 513.40 450 mm 2.90 136.04 13.46 486.20 nr 635.70 600×600 mm 5.40 253.31 23.91 785.40 nr 1062.63 1000×1000 mm 9.00 422.19 44.85 1405.90 nr 1872.94