Arc rays can burn eyes and skin – Hypertherm THC ArcGlide User Manual
Page 19
Safety and Compliance
SC-19
Safety
ARC RAYS CAN BURN EYES AND SKIN
Arc current
(amps)
Minimum
protective shade
number
(ANSI Z49.1:2005)
Suggested shade
number for
comfort
(ANSI Z49.1:2005)
OSHA 29CFR
1910.133(a)(5)
Europe
EN168:2002
Less than 40 A
5
5
8
9
41 to 60 A
6
6
8
9
61 to 80 A
8
8
8
9
81 to 125 A
8
9
8
9
126 to 150 A
8
9
8
10
151 to 175 A
8
9
8
11
176 to 250 A
8
9
8
12
251 to 300 A
8
9
8
13
301 to 400 A
9
12
9
13
401 to 800 A
10
14
10
N/A
Eye protection Plasma arc rays produce intense
visible and invisible (ultraviolet and infrared) rays that
can burn eyes and skin.
• Use eye protection in accordance with applicable
national and local codes.
• Wear eye protection (safety glasses or goggles with
side shields, and a welding helmet) with appropriate
lens shading to protect your eyes from the arc’s
ultraviolet and infrared rays.
Skin protection Wear protective clothing to protect
against burns caused by ultraviolet light, sparks, and hot
metal.
• Gauntlet gloves, safety shoes and hat.
• Flame-retardant clothing to cover all exposed areas.
• Cuffless trousers to prevent entry of sparks and slag.
• Remove any combustibles, such as a butane lighter
or matches, from your pockets before cutting.
Cutting area Prepare the cutting area to reduce
reflection and transmission of ultraviolet light:
• Paint walls and other surfaces with dark colors to
reduce reflection.
• Use protective screens or barriers to protect others
from flash and glare.
• Warn others not to watch the arc. Use placards or
signs.