18
GB
10. Safety levels
10.1 Safety levels table
10.2 Table of recommended safety levels for relevant welding methods:
Safety level
8
9
10
11
12
13
14
Lighting strength (lx)
180
500
1400
3900
10700
30000
83000
Method
Current strength A
1,5
6
10
15
30
40
60
70
100
125
150
175
200
225
250
300
350
400
450
500
600
Encased
electrodes
MAG
WIG
MIG with
heavy
metals
MIG with
light
metals
Arc-air
gouging
Plasma
fusion
cutting
Micro plasma
welding
1,5
6
10
15
30
40
60
70
100
125
150
175
200
225
250
300
350
400
450
500
600
Please note: The term “heavy metals” refers to steel, alloyed steel, copper and its alloys, etc.
8
9
10
11
12
13
8
9
10
11
12
13
9
10
11
12
13
14
10
11
12
13
14
10
11
12
13
14
9
10
11
12
13
4
5
6
7
8
9
10
11
12
15
14
8
9
10
11
12
13
14
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