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BOC Smoothcut Plasma 40 Operating manual
1.1 Health Hazard Information
The actual process of plasma cutting is one that can cause a variety of
hazards. All appropriate safety equipment should be worn at all times,
i.e. headwear, hand and body protection. Electrical equipment should be
used in accordance with the manufacturer’s recommendations.
Eyes
The process produces ultra violet rays that can injure and cause
permanent damage. Fumes can cause irritation.
Skin
Arc rays are dangerous to uncovered skin.
Inhalation
Cutting fumes and gases are dangerous to the health of the operator and
to those in close proximity. The aggravation of pre‑existing respiratory or
allergic conditions may occur in some workers. Excessive exposure may
cause conditions such as nausea, dizziness, dryness and irritation of eyes,
nose and throat.
1.2 Personal Protection
Respiratory
Confined space cutting should be carried out with the aid of a fume
respirator or air supplied respirator as per AS/NZS 1715 and AS/NZS 1716
Standards.
• You must always have enough ventilation in confined spaces. Be alert
to this at all times.
• Wear a respirator when natural or forced ventilation is insufficient.
Eye protection
Protective eyewear should be worn when plasma cutting. The minimum
lens requirements are as follows:
Recommended filter shades for plasma cutting
Arc Current
Minimum Protective Shade
Suggested Shade*
Less than 20 amps
Shade 4
Shade 4
20–40 amps
Shade 5
Shade 5
40–60 amps
Shade 6
Shade 6
60–80 amps
Shade 10
Shade 10
80–200 amps
Shade 11
Shade 11
*One shade darker lens should be used for Aluminium cutting.
Refer to WTIA Tech Note 7-13 Health and Safety in Welding.
Clothing
Suitable clothing must be worn to prevent excessive exposure to UV
radiation and sparks. An adjustable helmet, flameproof loose fitting
cotton clothing buttoned to the neck, protective leather gloves, spats,
apron and steel capped safety boots are highly recommended.
24799 Smoothcut Plasma 40 OP Manual CC D7.indd 5
16/04/2014 1:00 pm
