By IEC TC/SC 44

Applies to the applying of electric, digital and programmable digital apparatus and structures to machines now not moveable by means of hand whereas operating, together with a gaggle of machines operating jointly in a co-ordinated demeanour

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Extra info for EN 60204-1- Safety of machinery - Electrical equipment of machines - General requirements

Example text

Quando il dispositivo di sezionamento dell’alimentazione è una combinazione spina/presa deve rispettare le prescrizioni seguenti: – avere la capacità di interruzione, o essere interbloccato con un apparecchio di manovra con un potere d’interruzione sufficiente a interrompere la corrente a rotore bloccato del motore di maggior potenza più la somma delle correnti di funzionamento normali di tutti gli altri motori e/o carichi. Il potere di interruzione calcolato può essere ridotto utilizzando un fattore di contemporaneità comprovato.

However, for TN supply systems, the neutral conductor may or may not be disconnected except in countries where disconnection of the neutral conductor (when used) is compulsory; – have a breaking capacity sufficient to interrupt the current of the largest motor when stalled together with the sum of the normal running currents of all other motors and/or loads. The calculated breaking capacity may be reduced by the use of a proven diversity factor. When the supply disconnecting device is a plug/socket combination, it shall fulfil the following requirements: – have the switching capability, or be interlocked with a switching device that has a breaking capacity, sufficient to interrupt the current of the largest motor when stalled together with the sum of the normal running currents of all other motors and/or loads.

2 b) 9) e b) 12)). 2 c), le cartucce per fusibili asportabili o le connessioni asportabili previste a tale scopo sono destinate all’uso da parte di persone istruite o avvertite. 5 posti all’esterno di un’area di servizio elettrico chiusa devono essere muniti di mezzi di blocco nella posizione di aperto (stato di sezionamento), (per es. mediante lucchetto, interblocco mediante chiave intrappolata). Una volta bloccati in questo modo, deve essere impedita la richiusura da remoto e locale. 1) may be provided.

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