| 摘要 |
An emergency light and a method in conjunction with an emergency light, the emergency light comprising one or more LED light sources (3) for producing emergency lighting, a super capacitor (C) arranged to supply one or more LED light sources (3), a charging apparatus (1) arranged to charge the super capacitor (C) to a nominal voltage defined for it. The charging apparatus (1) is arranged to charge the super capacitor (C) in a current-controlled manner, and the equipment of the emergency light further comprises means (D Z ) for short circuiting the charging current produced by the charging apparatus (1) past the super capacitor (C) after the super capacitor (C) has achieved its nominal voltage, the charging apparatus (1) being further arranged to detect an increase in the charging voltage as an indication of a damage in the connection between the charging apparatus (1) and the capacitor (C). |
