Iec 600995 Pdf Upd File

(L1 to L6) for line surge arresters to better reflect specific performance levels.

: It aligns selection practices with the 2014 changes in IEC 60099-4, replacing "line discharge classes" with a system based on repetitive charge transfer rating ( Qrscap Q sub r s end-sub ) and thermal charge transfer rating ( Qthcap Q sub t h end-sub ) . iec 600995 pdf upd