Electrical apparatus for use in the presence of combustible dust - General requirements Ingestion-build-73935 Reflexive relationship added on “Street”

Reflexive relationship added on “Street”

The principal contractor’s temporary works co-ordinator (PC's TWC) retains overall responsibility for the temporary works on the site

analysts and others involved in designing

• IEC TR 61850-90-3

4 Specification of categories of cabs

Electrical apparatus for use in the presence of combustible dust - General requirements Ingestion-build-73935 Reflexive relationship added on “Street”Many dusts that are generated, processed, handled and stored are combustible. When ignited they can burn rapidly and with considerable explosive force if mixed with air in the appropriate proportions. When electrical apparatus is used in locations where combustible materials are present, it is important that suitable precautions are taken. In electrical apparatus, potential ignition sources include electrical arcs and sparks, hot surfaces and