Terminal compartments, cable connecting techniques and connection facilities

2 Terminal compartments, cable connecting techniques and connection facilities 

This heading describes an extended application of increased safety. Terminal compartments are connected to the main part of the apparatus supplied with or generating electric power. In many applications, the main part 

1 Material group IIIB is not covered by the standards for increased safety (IEC 60079-7, EN 50019) 

3 Material group IIIB is not recommended for application in pollution degree 3 above 630 V and in pollution degree 4 4 For external connections, creepage distances shall have a minimum value of 3 mm 

Type of protection EEx e II Certificate KEMA Ex-95.D.4411U Rated voltage 726 V Rated current 350 A Conductor cross-section (flexible) 70-185 mm2 Insulating material CTI 600. The lines in dark grey indicate the creepage distances. 

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