US 12,470,015 B2
Arc flash protection systems and methods
Steven W. Tonkin, Eden Prairie, MN (US)
Assigned to Phillips & Temro Industries Inc., Eden Prairie, MN (US)
Filed by Phillips & Temro Industries Inc., Eden Prairie, MN (US)
Filed on Oct. 17, 2022, as Appl. No. 17/967,127.
Prior Publication US 2024/0128680 A1, Apr. 18, 2024
Int. Cl. H02H 3/00 (2006.01); H01R 13/53 (2006.01); H01R 13/713 (2006.01); H02H 3/33 (2006.01)
CPC H01R 13/53 (2013.01) [H01R 13/7135 (2013.01); H02H 3/33 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An arc flash protection system comprising:
an arc flash detection module electrically connected directly to a cord coupled to an electrical load and electrically connected to a ground fault circuit interrupt (GFCI) outlet, the arc flash detection module configured to:
measure at least one of voltage and current of the cord; and
based on the at least one of the voltage and the current of the cord, determine and indicate whether an arc flash condition is present; and
a GFCI triggering module configured to, in response to the arc flash detection module indicating that an arc flash condition is present, output a predetermined current to a ground conductor of the cord.