 In 1927 , Minister of Labour Worm Hirsch <unk> @-@ Jenssen of the Conservative Party stopped the work on the railway , stating that time had run out and that there instead should be built a road . By then , NOK 5 million had been invested and parliament decided that construction should continue . However , <unk> @-@ Jenssen convinced Hordaland County Council to make a statement against the Hardanger Line , the Flåm Line and the Namsos Line , without this stopping construction . In 1931 , parliament reconsidered the electrification of the line , and there was consensus for electrification . The Hardanger Line opened on 1 April 1935 and became NSB 's first line to be electrified at the time of opening . In February 1936 , the line changed name from the Granvin Line to the Hardanger Line . 
