Discharge Current 2 : Nominal Discharge Current (In): Peak value of 8/20 s current waveform selected by the manufacturer for which an SPD remains functional after 15 surges
NFPA 780 Standard for the Installation of Lightning Protection Systems, 2008 ed. http://www.uscg.mil/Petaluma/TPF/ET_SMS/Manuals/NF PA_780.pdf, (Std: Instll of Lightning Prot Sys - Amer) {347 NFC}