code of practice of electrical safety for work on or near high voltage

Definitionson live <strong>electrical</strong> apparatus.28 ‘Isolated’ means not connected to anypossible sources <strong>of</strong> electricity supply bymeans which will prevent unintentional reenergisation<strong>of</strong> the <strong>electrical</strong> apparatus andwhich is assessed as a suitable step in theprocess <strong>of</strong> making safe <strong>for</strong> access purposes.29 ‘Live’ means energised or subject tohazardous induced or capacitive voltages30 ‘Live <strong>work</strong>’ means all <strong>work</strong> per<strong>for</strong>med oncomponents <strong>of</strong> <strong>electrical</strong> apparatus notisolated, proved de-energised and earthed.31 ‘Low voltage’ or ‘LV’ means nominal voltageexceeding 50 V a.c./120 V d.c. but notexceeding 1000 V a.c./1500 V d.c.32 ‘Mobile Plant’ means cranes, elevating <strong>work</strong>plat<strong>for</strong>ms, tip trucks or similar plant, anyequipment fitted with a jib or boom and anydevice capable <strong>of</strong> raising or lowering a load.Mobile plant can only be considered as avehicle when in the normal travelling mode andnot in the <strong>work</strong>ing mode when determiningsafe approach distances.Page 20 <strong>of</strong> 148 Blue Book – December 2005