Spatial networks

Question 1

Are structural elements outside the net considered to b din the falling space? Why

Answer 1

No.

Question 2

Whats’ a planar net

Answer 2

3-dimensional assembly of two or more planar nets one above the other

Question 3

What’s a converging part

Answer 3

any two linear elements, i.e. not flat surfaces, the distance between which diminishes along their length

Question 4

Protection from falling - how do spatial nets ensure this?

Answer 4

meshes of a spatial network shall not be so large as to allow an imaginary cylindrical body in a vertical position, with a diameter of 650 mm and a height of 1 800 mm,

If the cylindrical body passes through, the falling height and the shock absorbing surface shall conform to EN 1176-1.

Question 5

Planar nets - if the gap between the upper and lower net is larger than 1m what is the max opening when unloaded?

Answer 5

420 mm when unloaded

Question 6

Planar nets - if the mesh is greater than 420 what CFH is required?

Answer 6

critical fall height appropriate for the highest planar net

Question 7

Where is the fall height of a spatial net measured from?

Answer 7

From where the mesh is big enough to allow a cylinder body through (650-1800)

Question 8

When are Converging parts within spatial networks exempt from the requirements of head and neck entrapments

Answer 8

Where two linear elements converge at least one shall be flexible.

Above 600 mm from the ground the angle formed between converging parts with a lower edge above the horizontal shall be more than 55°.

use the test template head first, and re-measure the angle using a protractor. Looking for min of 55 deg.