good slinging practice - Site Safe

More documents

Recommendations

Info

GENERALLY LIMIT FOR SAFE CRANE OPERATION. REFER TO SPECIFIC CRANE MANUAL. BEAUFORT WIND SCALE Beaufort Number 0 1 2 3 4 Description Observed Features Calm Smoke rises vertically Light Air Light Breeze Gentle Breeze Moderate Breeze Smoke drifts downwind. Wind does not move wind vane. Wind felt on face. Leaves rustle. Wind vane moved by wind. Leaves and twigs in constant motion. Wind extends light flag. Raises dust and loose paper. Small branches are moved. Velocity in MPH Less than 1 Velocity in KPH Less than 1.6 1 - 3 2 - 5 4 - 7 6 - 11 8 -12 13 -19 13 - 18 21 - 29 Small trees in leaf begin tomsway. Fresh 5 Crested wavelets form on inland 19 - 24 31 - 39 Breeze waters. Strong Large branches in motion; 6 25 - 31 40 - 50 Breeze whistling heard in power wires. Whole trees in motion. Moderate 7 Inconvenience felt in walking 32 - 38 52 - 61 Gale against wind. Fresh Twigs break off trees, progress 8 39 - 46 63 - 74 Gale generally impeded. Slight structural damage occurs Strong 9 (roof tiles and chimney pots 47 - 54 76 - 87 Gale removed). Seldom experienced inland; Whole 10 trees uprooted, considerable 55 - 63 88 - 101 Gale structural damage. Very rarely experienced; causes 11 Storm 64 - 75 103 - 121 widespread destruction. 12 Hurricane Note: Velocity is measured approx. 6 metres (20ft) above ground level. BEAUFORT WIND SCALE PAGE 8 Over 75 Over 121
CRANEAGE - SLINGING BASICS SECTION 5: REEVING AND CHOKING 5.1 Know the Effect of Reeving on Slings 5.2 The Nip Angle CRANEAGE - SLINGING: BASICS PAGE 9
Page 1 and 2: NOTE: This is Part 2 of a 4-part mo
Page 3 and 4: CRANEAGE - SLINGING BASICS SECTION
Page 5 and 6: GOOD SLINGING PRACTICE BASIC RULES
Page 9: GOOD SLINGING PRACTICE BASIC RULES

good slinging practice - Site Safe

Create successful ePaper yourself

Delete template?

Save as template?