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hädavalgustusviis, mis näeb ette tegevuses olevate inimeste ohutuse valgustuse normaaltoite rikke korral, part of emergency lighting that provides illumination for the safety of people staying in a premises when the supply to the normal lighting fails
turva-hädavalgustus . Valgustehnika terminibaas. Estonian Language Institute, Sõnaveeb 2026. https://sonaveeb.ee/search/unif//valgus/turva-h%C3%A4davalgustus/1/est (06.07.2026)
