Aandrijftechniek/transportbandtechniek betrouwbaar bewaken
Moderne installaties bevatten steeds vaker elektromotoren of pompen die met softstarters of frequentieomvormers worden aangedreven. Deze genereren echter kritische harmonische verstoringen in de AC-netvoeding. Reguliere RCD's of eenvoudige isolatiemonitoren (bijv. de 3-lampenmethode of het 2-voltmeterproces) beveiligen deze processen niet correct. Verder moet rekening worden gehouden met lekstromen en de belasting van de isolatie van de motoren. Er is moderne bewakingsapparatuur van Bender nodig om deze problemen snel te detecteren en te melden.
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Aanbevolen isolatiebewakingsapparaten:
Aanbevolen inrichtingen voor isolatiefoutopsporing (aardfoutzoeksystemen):
Aanbevolen systemen voor lekstroombewaking:
Aanbevolen inrichtingen voor meettransformators:
Evaluatie en rapportage:
EN 61557-8
Electrical safety in low voltage distribution systems up to 1 000 v a.c. and 1 500 v d.c. - Equipment for testing, measuring or monitoring of protective measures - Part 8: Insulation monitoring devices for IT systems
EN 61557-9
Electrical safety in low voltage distribution systems up to 1000 V a.c. and 1500 V d.c. - Equipment for testing, measuring or monitoring of protective measures - Part 9: Equipment for insulation fault location in IT systems
EN 61557-15
Electrical safety in low voltage distribution systems up to 1000 V ac and 1500 V dc - Equipment for testing, measuring or monitoring of protective measures - Part 15: Functional safety requirements for insulation monitoring devices in IT systems and equipment for insulation fault location in IT systems
DIN EN 50178
Electronic equipment for use in power installations
IEC 60204-1
Safety of machinery - Electrical equipment of machines - Part 1: General requirements
Electrical safety in low voltage distribution systems up to 1 000 v a.c. and 1 500 v d.c. - Equipment for testing, measuring or monitoring of protective measures - Part 8: Insulation monitoring devices for IT systems
EN 61557-9
Electrical safety in low voltage distribution systems up to 1000 V a.c. and 1500 V d.c. - Equipment for testing, measuring or monitoring of protective measures - Part 9: Equipment for insulation fault location in IT systems
EN 61557-15
Electrical safety in low voltage distribution systems up to 1000 V ac and 1500 V dc - Equipment for testing, measuring or monitoring of protective measures - Part 15: Functional safety requirements for insulation monitoring devices in IT systems and equipment for insulation fault location in IT systems
DIN EN 50178
Electronic equipment for use in power installations
IEC 60204-1
Safety of machinery - Electrical equipment of machines - Part 1: General requirements