An enquiry to the Swedish mining industry included questions concerning planned mine production, mining methods, number and types of diesel-powered equipment, diesel engines, and transmission types of working cycles. The result representing the situation in 1977 in 37 mines are shown. LHD's are the main fuel consumers (50 percent) and the main contaminators of the air. Subsequent work was concentrated on a duty cycle for this type of equipment.
Godkänd; 1982; 20070221 (pafi)