BS EN 60143-3:2015 applies to internal fuses designed to isolate faulty capacitor elements,
to allow operation of the remaining parts of that capacitor unit and the bank in which the
capacitor unit is connected. Such fuses are not a substitute for a switching device such as a
circuit-breaker, or for external protection of the capacitor bank, or any part thereof.The object of this part of IEC 60143 is:to formulate requirements regarding performance and testing;to provide a guide for coordination of fuse and bank protection.NOTE External fuses for series capacitors are treated in IEC 60143-1:2004, Annex A: "Test requirements and
application guide for external fuses and units to be externally fused".Cross References:IEC 60143-1:2004EN 60143-1:2004IEC 60143-2:2012EN 60143-2:2013IEC 60549:2013EN 60549:2013IEC 60871-4:2014EN 60871-4:2014IEC 60931-3:1996EN 60931-3:1996IEC 60050-436:1990All current amendments available at time of purchase are included with the purchase of this document.