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9.3.10
Maintaining terminal boxes
● For terminal boxes with type of protection "Ex d" or "Ex db", regularly inspect the cable
entries inside the terminal box according to IEC / EN 60079-17. Retighten the screw
fastenings if necessary.
9.3.11
Measuring the insulation resistance during the course of maintenance work
Measuring the insulation resistance and polarization index (PI) provides information on the
condition of the machine. It is therefore important to check the insulation resistance and the
polarization index at the following times:
● Before starting up a machine for the first time
● After an extended period in storage or downtime
● Within the scope of maintenance work
The following information is provided regarding the state of the winding insulation:
● Is the winding head insulation conductively contaminated?
● Has the winding insulation absorbed moisture?
As such, you can determine whether the machine needs commissioning or any necessary
measures such as cleaning and/or drying the winding:
● Can the machine be put into operation?
● Must the windings be cleaned or dried?
Detailed information on testing and the limit values can be found here:
"Testing the insulation resistance and polarization index" (Page 41)
9.3.12
Touch up any damaged paintwork
If the paint is damaged, it must be repaired in order to protect the unit against corrosion.
Note
Paint system
Contact the Service Center (Page 111) before you repair any damage to paint. They will provide
you with more information about the correct paint system and methods of repairing paint
damage.
Complete overpainting
The paint applied must conform to the requirements to avoid electrostatic charging, see
EN 60079-0.
The repair of painted surfaces of the non-conductive paint coating up to a nominal coating
thickness of 350 μm was investigated and is acceptable.
Maintenance
9.3 Inspection and maintenance
SIMOTICS HV C 1NB1402-2AA84-4CA0-Z
Operating Instructions 06/2018
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Страница 10: ...Table of contents SIMOTICS HV C 1NB1402 2AA84 4CA0 Z 10 Operating Instructions 06 2018 ...
Страница 22: ...Description SIMOTICS HV C 1NB1402 2AA84 4CA0 Z 22 Operating Instructions 06 2018 ...
Страница 84: ...Operation 8 9 Faults SIMOTICS HV C 1NB1402 2AA84 4CA0 Z 84 Operating Instructions 06 2018 ...
Страница 110: ...Disposal 11 4 Disposal of components SIMOTICS HV C 1NB1402 2AA84 4CA0 Z 110 Operating Instructions 06 2018 ...
Страница 112: ...Service and Support SIMOTICS HV C 1NB1402 2AA84 4CA0 Z 112 Operating Instructions 06 2018 ...
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Страница 131: ...C 2 Declaration of conformity SIMOTICS HV C 1NB1402 2AA84 4CA0 Z Operating Instructions 06 2018 131 ...
Страница 132: ...Quality documents C 2 Declaration of conformity SIMOTICS HV C 1NB1402 2AA84 4CA0 Z 132 Operating Instructions 06 2018 ...
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Страница 150: ...Additional documents SIMOTICS HV C 1NB1402 2AA84 4CA0 Z 150 Operating Instructions 06 2018 ...
Страница 154: ...Index SIMOTICS HV C 1NB1402 2AA84 4CA0 Z 154 Operating Instructions 06 2018 ...
Страница 155: ...AF Einbauerklärung Loher LDX U157 AJ EC Declaration of Conformity U161 ...