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COMPACT-EX[GD]
4. CREEPAGE AND CLEARANCES
Internal modules are back-plate mounted.
Back-plate shall be fixed with a minimum of two screws.
Creepage and clearance distances shall be in accordance with IEC / EN 60079-7 - Table 2
Figure 5 – Details of clearance distances and mounting of metallic cable gland
(*): Minimum clearance distances that shall be maintained to conductive parts or other live parts are referred to the safety
instruction of the components used.
Note: Minimum clearance distances that shall be maintained to conductive parts or other live parts are:
Minimum clearance
250 V
400 V
500 V
630 V
800 V
1000 V
Table 3 – Clearance
Note: Voltages are nominal voltages – the working voltage may exceed by 10% the voltage level given.
4.1 CABLE GLANDS, BLANKING PLUGS, ADAPTERS
Use only Ex eb and Ex tb IIIC ATEX and IECEx certified cable glands, blanking plugs, adapters can only be fitted with a suitable IP
rating commensurate with IP rating of the enclosure.
The accessories used for cable entries shall be IECEx certified according to IEC/EN 60079-0, IEC/EN 60079-7 and IEC/EN 60079-31,
with EPLs according to marking plate, and installed according IEC/EN 60079-14.
They shall have operating temperature suitable for a range from Tamb_min to Tcable;
The entry thread of cable gland/blanking element shall have a nominal diameter not more than 0.7 mm smaller than the plain
entry holes of enclosure
(The safety instruction of the Cable Glands, Blanking Plugs, and adapters must be applied).
Any unused entries must be blanked using a suitably approved blanking plugs with separate certificate.
MP00075
5 mm
6 mm
8 mm
10 mm
12 mm
14 mm
19
ZP91193-1
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