苏联交通部通过决议增添单节保温车——无冷源保温车;冰保车;单节机保车和专用车(运牛奶的保温罐车、活鱼车等)。无冷源保温车最好在短距离运输时使用。短距离运输的易腐货物占易腐货物总发货量的30％。在热工性能高的无冷源保温车中应运输经过预冷的食品。这样花费比较便宜,因为在地面条件生产的1kW·h电力的价格要比移动的动力装置生产的低90％以上。与单节机保车相比较,车体隔热性能良好时不设制冷——动力设备可以节约燃料 The Ministry of Transport of the Soviet Union passed the resolution to add a single insulation car - no cold source insulation car; Ice bumper car; single section car and special vehicles (shipped milk insulated car, live car, etc.). No cold source insulation car is best used in short-distance transport. Perishable goods transported over short distances account for 30% of the total shipments of perishable goods. Precooled food should be transported in a non-sourced insulation car with high thermal performance. This is cheaper because 1 kWh of electricity produced on ground conditions costs more than 90% less than mobile power plants. Compared with a single car, car body insulation is not good when the performance is not set cold - power equipment can save fuel