Commissioning
EN
Clearance and creepage distances of intrinsically safe components
EN
Make sure that the creepage distances and clearances between the uncoated,
EN
conductive parts of connection terminals of separated, intrinsically safe circuits to earthed
or potential-free, conductive parts is equal or greater than the values of EN IEC 60079-11,
EN
Table 5.
EN
For separated, intrinsically safe electric circuits, set up a safe distance between the
uncoated, conductive parts of external connections, which meets the following
EN
requirements:
EN
• Minimum 6 mm between the separated, intrinsically safe circuits
EN
• At least 3 mm to earthed parts if a possible connection to earth has not been considered
in the safety analysis.
EN
EN
7
Commissioning
EN
Before commissioning, carry out the following checks:
EN
Check the enclosure for damage.
EN
Check that mounting and installation have been performed correctly. When doing so,
EN
check whether all covers and partitions for live parts have been installed and fastened.
Make sure that all openings/drilled holes in the enclosure are sealed with permissible
EN
components. Dust and transport protection (adhesive tape or plastic caps)
EN
provided at the factory must be replaced with appropriately certified components.
Make sure that seals and sealing systems are clean and undamaged.
EN
Remove any foreign bodies.
EN
If necessary, clean the connection chamber.
EN
Check whether all the specified tightening torques have been observed.
EN
EN
8
Maintenance, Overhaul, Repair
EN
Comply with the applicable national standards and regulations in the country of use,
e.g. IEC/EN 60079-14, IEC/EN 60079-17, IEC/EN 60079-19.
EN
EN
8.1
Maintenance
EN
Check the following points in addition to the national regulations:
• Whether the clamping screws holding the electrical lines fit securely
• Whether the device enclosure and/or protective enclosure has/have cracks or other visible
signs of damage
• Whether the permissible temperatures are complied with
• Whether the parts are securely fastened
• Ensure it is being used as intended
8.2
Overhaul
Perform maintenance on the device according to the applicable national regulations and
the safety notes in these operating instructions ("Safety" chapter).
8.3
Repair
Repair work on the device must be performed only by R. STAHL.
20
Terminal Boxes
Series 8118/1, Series 8118/2
133285 / 8118609300
2019-11-13·BA00·III·en·06