Height Safety Catalogue - Ferno
Height Safety Catalogue - Ferno
Height Safety Catalogue - Ferno
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
16<br />
WORK SAFE HINTS<br />
Calculating potential fall distances and clearances<br />
– energy absorbing lanyard<br />
Before Fall After Fall Anchorage Calculation<br />
Roll out<br />
Lanyard<br />
length<br />
Required<br />
distance for<br />
energy absorber<br />
to decelerate<br />
Worker<br />
height<br />
<strong>Safety</strong>/Residual<br />
clearance<br />
1.75 m<br />
Total 6.55 m<br />
This area<br />
represents<br />
the calculated<br />
work area.<br />
Distance from<br />
anchor point<br />
divided by 3<br />
gives distance<br />
of movement<br />
to each side<br />
of person.<br />
1 2 3 4 5<br />
2 m<br />
1.8 m<br />
1 m<br />
Work zone formula - overhead anchors<br />
Anchor<br />
point<br />
9 m<br />
3 m 3 m<br />
WORK EDGE<br />
Work zone formula – connecting<br />
safety lines<br />
Example 1<br />
Rope must be<br />
tight between<br />
you and the<br />
anchor point.<br />
Protect rope on<br />
ridge line from<br />
cutting.<br />
Maintain the<br />
30/30 degrees.<br />
Example 2<br />
Use a round sling<br />
or tie-off adapter.<br />
Attempt to wrap<br />
twice around<br />
structure.<br />
Ensure hook and<br />
free fall arrest<br />
attachment point<br />
is compatible.<br />
Rope<br />
adjuster<br />
Roof<br />
Personal<br />
energy<br />
absorber<br />
Attachment hardware is an important consideration. Under AS/NZS 1891.4:2000, Section 4.3.5, an important safety issue of<br />
hardware compatibility is raised. Check your hardware and anchor point to ensure the pictures below can not happen to you.<br />
<strong>Safety</strong><br />
Line<br />
30º 30º<br />
Harness<br />
(back)<br />
Work zone = 500 mm from edge<br />
Approved<br />
anchor point<br />
or solid<br />
structure<br />
Webbing<br />
tie off<br />
Harness<br />
(front)
Change language