Standards at a glance EN 397 · EN 50365 · EN 12492 · EN 1078 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. uvex pheos E EN 12492 – Helmets for mountaineers Protection against hazards that may occur during activities undertaken by mountaineers Requirements: • Shock absorption, vertical, frontal, lateral, dorsal • Penetration resistance • Carrier element (chin strap releases at min. 500 N) • Strength of carrier element: Chin strap may exhibit maximum elongation of 25 mm • Carrier element effectiveness: Helmet must not slide from the head uvex pheos alpine uvex pronamic alpine 73
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