Flammability classification | High-current arc ignition, PLC | |
HB | 1 | |
V-2 | 2 | |
V-1 | 2 | |
V-2 | 3 | |
c) Have a Comparative Tracking Index performance level category (PLC) of 2 or better, when the system voltage rating is 600V or less, as determined in accordance with the Standard for Polymeric Materials – Short Term Property Evaluations, UL 746A; Right Figure: Arc generator |