‘active device’ means any device, the operation of which depends on a source of energy other than that generated by the human body for that purpose, or by gravity, and which acts by changing the density of or converting that energy.
ciallaíonn “feiste ghníomhach” aon fheiste a bhfuil a hoibríocht ag brath ar fhoinse fuinnimh seachas fuinneamh a ghintear ó chorp an duine chun na críche sin, nó a ghintear de bharr imtharraingte, agus a fheidhmíonn trí dhlús an fhuinnimh sin a athrú nó tríd an bhfuinneamh sin a thiontú.