0 |
No special protection |
No special protection |
0 |
No special protection |
1 |
with back of a hand |
Large foreign bodies >50mm dia |
1 |
dripping vertically |
2 |
with a finger |
Medium foreign bodies >12.5mm dia |
2 |
dripping at an angle <15 from vertical |
3 |
with tools and wires etc > 2.5mm thick |
Medium foreign bodies >2.5mm dia |
3 |
spray <60 from vertical |
4 |
with tools and wires etc >1mm thick |
Medium foreign bodies >1mm dia |
4 |
spray from all directions |
5 |
complete protection |
Dust allowed but not affect function |
5 |
jets from a nozzle in all directions |
6 |
complete protection |
Dust proof |
6 |
high pressure jets |
|
|
|
7 |
temporary immersion |
|
|
|
8 |
permanent immersion |