Lisaks võib neil (kaitsepiiretel) olla vaja eriomadusi seoses elektri, temperatuuri, tule, plahvatuse, vibratsiooni, nähtavuse (vt ISO 14120) ja operaatori asendi ergonoomikaga (nt kasutatavus, operaatori liikumised, asendid, rutiinsed liigitused).
Additionally, they could need to have particular properties relating to electricity, temperature, fire, explosion, vibration, visibility (see ISO 14120) and operator position ergonomics (for example, usability, operator's movements, postures, repetitive movements).
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