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M A I N T EN A N C E I N T ER VA L S
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Maintenance intervals
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Please refer to MNS Service Manual 1TGC902040B0201 section 7 and DPA500 manual section 7.
General visual inspection (repetitive tests):
• External inspection
• Completion of the interior
• Switchgear and control gear assemblies (withdrawable or plug-in modules)
Additional inspections:
• – Withdrawable technique
• – Plug-in, technique
• – Direct connection of incoming and outgoing power feeders with circuit breakers, e.g. Emax, ISOMAX or Tmax
Notes on the inspection lists on the following pages:
• The frequency refers to time intervals (monthly, annually, etc.), service hours, starting frequency, etc.
The following abbreviations are used to denote the frequency:
- m: monthly
- a: annually
- n: insertion cycles of modules
- x: test in the event of a fault (e.g. after a short-circuit)
• “Installation category” column
A distinction is made between the following installation categories, because the frequency of maintenance or inspection
depends on the operating conditions:
- Installation category A: Normal operation
- Installation category B: Heavy-duty operation, e.g. cement factory
- Installation category C: Short circuit (fault)
Summary of Contents for MNS-Up
Page 6: ... 01 Introduction ...
Page 8: ... 02 Safety first ...
Page 12: ... 03 General technical data ...
Page 16: ... 04 System description ...
Page 18: ... 05 Packing storage and transportation ...
Page 36: ... 06 Transport ...
Page 40: ... 07 Erecting ...
Page 47: ...47 ERECTING ...
Page 48: ... 08 MNS Up configuration ...
Page 52: ... 09 MNS Up Module installation ...
Page 55: ...55 MNS UP MODULE INSTALL ATION ...
Page 56: ... 10 Handling of EMC boards ...
Page 59: ...59 HANDLING OF EMC BOARDS ...
Page 60: ... 11 Communication boards ...
Page 62: ... 12 MNS 3 0 sections ...
Page 64: ... 13 Commissioning ...
Page 66: ... 14 Operating of MNS Up system ...
Page 68: ... 15 Tightening torques for screw connection in MNS Up ...
Page 72: ... 16 Spare parts ...
Page 74: ... 17 Onsite inspection and maintenance ...
Page 76: ... 18 Maintenance intervals ...
Page 81: ...81 MAINTENANCE INTERVALS ...
Page 83: ......