JAPAN JNR 24 series sleeping cars

A regulation of JNR is a regulation which stops trains immediately in the event of an outbreak of fire. However, a fire becomes intense and electric wires are broken. The train was stopped inside the longest Hokuriku tunnel in Japan in those days. The fire killed 30 people and 714 people were injured from the damage caused by poisonous gases. JNR were shocked by the size of the damage. The passengers of the sleeping car were sleeping. Therefore, there were many victims among the passengers of the sleeping cars. JNR inspected other new sleeping cars. The dynamo of the sleeping car of 14 series became a problem. It was because the dynamo carries fuel. However, JNR in those days were not able to develop a small piece of automatic fire-extinguishing equipment which can be carried under the floor of sleeping car. Therefore, the manufacture of the sleeping car of the 14 unfortunate series was stopped and a new style sleeping car which carried a power supply in a power source car was designed in a hurry. It was the sleeping car of the 24 series in 1973. The feature of this sleeping car was the performance of fire prevention. Therefore, the interior was simple at first.
By progress of subsequent technology, JNR remodeled this sleeping car. Now, as for the Japanese sleeping car, some vehicles of this series are still used.