Maintenance
16
134784 / 8125612300
2013-01-18·BA00·III·en·05
Control Panels and Distribution Systems
8125/5, 8125/8
Inspection schedule for Ex "i"
C
Ambient conditions
1
Equipment is adequately protected against corrosion, weather, vibration and other
adverse factors
x
x
x
x
x
x
x
x
x
2
No undue accumulation of dust and dirt
x
x
x
x
x
x
x
x
x
3
Electrical insulation is clean and dry
x
x
NOTE 1 General information: Equipment having the types of protection “d” and “e” is checked using a combination of both
columns.
NOTE 2 Items B7 and B8: When using electrical test equipment, take into account that there could be an explosive atmosphere
in the vicinity of the equipment.
Please check the following:
Grade of inspection
Detailed
inspectio
n
Close
inspectio
n
Visual
inspectio
n
A
Equipment
1
Circuit and/or equipment documentation is appropriate to zone classification
x
x
x
2
Installed equipment corresponds to the equipment specified in the documentation - only
applicable for stationary equipment
x
x
3
Category and group of the electric circuit and/or the equipment are correct
x
x
4
Temperature class of the equipment is correct
x
x
5
Installation is clearly labelled
x
x
6
There are no unauthorised modifications
x
7
There are no visible unauthorised modifications
x
x
8
Safety barriers, relays and other energy limiting devices correspond to the approved
type, are installed in accordance with the certifications and are securely earthed if
necessary.
x
x
x
9
Electrical connections are fixed properly
x
10
Printed circuit boards are clean and undamaged
x
B
Installation
1
Cables are installed in accordance with the documentation
x
2
Cable screens are earthed in accordance with the documentation
x
3
There is no obvious damage to cables
x
x
x
4
Sealing of trunking, ducts, pipes and/or conduits is satisfactory
x
x
x
5
Point-to-point connections are all correct
x
6
Earth continuity is satisfactory (for example, the connections are fixed properly and the
conductor cross sections are sufficient)
x
7
Earth connection maintain the integrity of the type of protection
x
x
x
8
The intrinsically safe circuit is isolated from earth or grounded at one point only (refer
to documentation)
9
Separation is maintained between intrinsically safe and non-intrinsically safe circuits in
common distribution boxes or relay cubicles
x
10
If applicable, short-circuit protection of the power supply is in accordance with the
documentation
x
11
Special operating conditions (if applicable) are observed
x
12
Cables not in use are correctly terminated
x
x
x
C
Ambient conditions
1
Equipment is adequately protected against corrosion, weather, vibration and other
adverse factors
x
x
x
2
No undue accumulation of dust and dirt
x
x
x
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