Can you weld with Z87?
It is safe to weld with contact lenses on, but it is a good idea to wear a pair of ANSI Z87 approved safety glasses if you are working with a hood. It is safe to wear contacts while doing torchwork if you’re wearing goggles. Welding with contact lenses does not put you at risk of having the contacts fuse to your eyes.
What shade number should be used in the welding helmet?
Both ANSI and AWS are more cautious, recommending a shade number 11 for welding at 60-160 amps, a number 12 for 160-250 amps, and a number 14 for 250-500 amps. Verify that both the welding helmet and lens shade meet ANSI Z87. 1 certification.
What does 1 1 1 1 mean on a welding helmet?
These ratings are usually stamped on welding lenses in the following format: 1/1/1/1. The numbers represent how well the welding lens performed against the 4 criteria points. The points system ranges from 1 to 3, where 1 is the best and 3 is the worst.
What is an automatic welding helmet?
Auto-darkening helmets, Figure 1, work basically by sensing the light from the arc and electronically activating a liquid crystal filter within the lens to darken to a preselected shade and protect the welders face and eyes from ultraviolet and infrared radiation (UV/IR).
Do you need to wear safety glasses under a welding helmet?
Yes, OSHA requires the individual to wear safety glasses under goggles, face shields and welding helmets because the individual may lift the goggle, face shield or welding helmet and be exposed without the safety glasses.
What color lens is best for welding?
Gold Welding Lenses: Reflects most of the heat from welding so it also adds to your physical comfort.
How do I choose a welding helmet?
General features of an auto-darkening helmet
- Welding light state: How light or dark the welding filter is when not welding, the lighter the welding filter, the better the welder can view the work area and weld piece.
- Welding shades:
- Number of sensors:
- Viewing area:
What is optical class welding helmet?
Optical class (accuracy of vision). Think about how distorted things appear underwater when you look down into the water (see Figure 1). This class qualifies how distorted the image is when you are looking at it through a welding helmet lens. Distortion is minimal if you are looking through a 1-rated lens.
Are automatic welding helmets safe?
Are auto-darkening welding helmets safe? Yes. When used properly, auto-darkening welding helmets are safe, if not safer than passive welding helmets. Auto-darkening helmets do not have to be taken on and off, helping welder’s focus on their projects and reduce the risk of errors and injuries.