WAC 296-45-52515. Series streetlighting

(1) If the open-circuit voltage exceeds 600 volts, the series streetlighting circuit must be worked in accordance with WAC 296-45-215 or 296-45-385 , as appropriate. (2) A series loop may only be opened after the streetlighting transformer has been deenergized and isolated from the source of supply or after the loop is bridged to avoid an open-circuit condition.