Anti-Condensation Heating - Siemens SIMOTICS XP 1MB1 series Operating Instructions Manual

Low-voltage motors
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Test in accordance with the relevant EU directives after repair.
Risk of explosion due to alteration of the ignition gap geometry
Changing ignition gap geometries (gap dimensions) as part of repair work according to the
minimum specifications of IEC / EN 60079–1 is not permissible.
This can result in death, serious injury or material damage.
• Obtain the gap dimensions of the electrical machine from the manufacturer for the repair
Comply with the IEC / EN 60079-17 standard during all service and maintenance work on
the machine.
Risk of explosion as a result of inadmissible repair work
Repairs are only permissible within the scope of the work described in these operating
instructions. Otherwise an explosion can occur in an explosive atmosphere. This can result
in death, serious injury or material damage.
● For repairs to go beyond this scope, please contact the Service Center.
Explosion hazard due to increased surface temperature
Components within the motor may be hotter than the maximum permissible surface
temperature for the enclosure. In an explosive atmosphere, dust can ignite and an
explosion occur. This can result in death, serious injury or material damage.
• Do not open the motor in an explosive and dusty atmosphere when it is still at normal
• Allow the machine to cool down before opening it.
9.3.2

Anti-condensation heating

Explosion hazard due to improper maintenance of the anti-condensation heating
If the anti-condensation heating is not correctly repaired, e.g. if unauthorized or untested
spare parts are used, this can result in explosions during operation in a potentially explosive
atmosphere. This can result in death, serious injury or material damage.
● Only appropriately trained specialists in the service center (Page 163) are authorized to
repair anti-condensation heating systems. The anti-condensation heating must then be
subject to a routine test, which requires extensive specialist knowledge.
● Only use authorized and tested spare parts.
1LA5/6/7/9, 1LG4/6, 1MA6/7, 1MB..1/2/3/4/5 - SH 63 ... 355
Operating Instructions, 06/2018, A5E44455710A
WARNING
or restoration of ignition gap geometries. 

WARNING
operating temperature.
Maintenance
9.3 Corrective maintenance
125

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