Standards at a glance EN 397 · EN 50365 EN 397 – Industrial safety helmets Protection against falling objects and the consequences thereof, such as brain damage and skull fracture Binding requirements: all helmets certified according to EN 397 must meet these requirements. • shock absorption, vertical • penetration resistance (against sharp and pointed objects) • flame resistance • chin strap attachment: chin strap releases at minimum 150 N and maximum 250 N Optional requirements: a helmet certified in accordance with EN 397 may meet these requirements; they are, however, not mandatory requirements. • very low temperatures (-20°C or -30°C) • very high temperatures (+150°C) • electrical insulation (440 V) • molten metal (MM) • lateral deformation (LD) EN 50365 – Insulating helmets for use on low voltage installations Protection against electric shocks and prevention of dangerous electric current passing through the head Requirements: • All helmets must also meet the requirements in accordance with EN 397. • Protection against alternating voltage of up to 1000 V (AC) or direct voltage up to 1500 V (DC) • Insulating helmets must not contain any conductive parts. • Air vents (if available) must not allow any accidental contact with live parts. very low temperatures (-20°C or -30 °C) uvex pheos uvex pheos alpine uvex perfexxion uvex pronamic alpine uvex pronamic very high temperatures (+150 °C) molten metal (MM) uvex pheos uvex pronamic alpine uvex pronamic lateral deformation uvex perfexxion uvex pronamic alpine uvex pheos E uvex pronamic alpine E 120
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