
LINC-CUT
®
S 1020w-1530w
8
Fumes/gas:
The water table catches most solid particles and some of the gaseous emissions from harmful fumes.
However, their residual concentration, possibly in combination with quantities of substances already present
in the ambient air due to other sources of pollution, may exceed limit or peak workplace exposure values.
Under the regulations:
•
The limit value for short-term exposure (15-minute duration) to NO2 (majority pollutant in NOx) must
remain below 6 mg/m
³
•
The limit value for occupational exposure (eight-hour duration) to NO2 (majority pollutant in NOx)
must remain below 1.2 mg/m
³
Based on a guidance (see note 1) usage scenario with two hours of cutting over an eight-hour day (15
minutes of cutting/hour), below is an estimate of the fresh air flow rate required to stay within the limit
exposure values read with 25 mm thick steel plates. This is the least favourable case in relation to other
readings taken on 10 mm thick steel and 10 and 20 mm thick stainless steel.
LINC-CUT
®
S 1020w-1530w
machines are not designed for cutting aluminium. Cutting aluminium on a water table is hazardous: risk of
explosion due to the discharge of hydrogen.
Workshop
5 m high
5 m wide
10 m long
Workshop
5 m high
10 m wide
10 m long
Workshop
5 m high
10 m wide
15 m long
Workshop
5 m high
10 m wide
25 m long
Volume (m³)
250
500
750
1250
Fresh air inflow rate (m
³
/h) required to not
exceed the short-term (15 minutes) exposure
limit value for NO2, 6 mg/m
³
420
170
0
0
Fresh air inflow rate (m
³
/h) required to not
exceed the occupational (eight hours) exposure
limit value for NO2, 6 mg/m
³
3300
3270
3240
3200
Note 1: The concentration stated indicates the average value in the area. In reality, it is higher close to the
table.
The quantity of residual fumes emitted depends closely on the quality of the cut metal, cutting parameter
settings and the water level height.
That is why
Lincoln Electric
®
cannot commit to specific values regarding the fume concentration at the
workstation.
In order to take account of all the varied conditions of use, only individual in-situ exposure measurements
by an approved body can determine the concentrations created, in order to then define any ventilation
requirements.
Noise measurement:
Noise measurement of
LINC-CUT
®
S 1020w-1530w
with a
FLEXCUT 125 CE
and an
LC125M
torch (measurements
M1
and
M2
) or a
TOMAHAWK
®
1538
(measurement
M1
) with
an
LC100M
torch in accordance with the Machinery Directive 2006/42/EC has brought out the
following conclusions set out in the table below:
LC125M
LC125M
LC100M
LC100M
MEASUREMENT CONDITIONS
M1
M2
Intensity
85A
125A
Material
Carbon steel: 8mm
Carbon steel: 20mm
Gas
Compressed air
Compressed air
LAeq level in
dB(A)
LCpeak levels
in dB(C)
LAeq level in
dB(A)
LCpeak levels
in dB(C)
Distance of
measuring
point from
torch
1 metre
101.2
114.3
95.2
108
2 metres
96.2
109
90.6
103.6
3 metres
93.2
106.3
89
103.8
4 metres
90.8
103.8
85.9
98.6
5 metres
89.7
102.6
84.4
98.8