1. The judgment of the first instance, including the claims of the Plaintiff’s succeeding intervenor expanded in the trial, shall be modified as follows:

1. The court's explanation on this part of the basic facts is the same as the corresponding part of the judgment of the court of first instance, and thus, citing it as it is by the main text of Article 420 of the Civil Procedure Act.

2. Occurrence of liability for damages;

A. Article 23(1) of the Industrial Safety and Health Act provides that "a business owner shall take measures necessary to prevent any danger specified in the following subparagraphs in running a business." Article 23(1)2 of the same Act provides that "the business owner shall pay workers engaged in any work falling under any of the following subparagraphs more than the number of workers engaged in performing protective equipment meeting the working conditions as classified in each of the following." Article 32(1) of the Rules on the Standards for Industrial Safety and Health provides that "the business owner shall ensure that workers are obliged to wear protective equipment in high heat, image, or any other dangerous work: ..." Article 253 of the Rules provides that "the business owner shall ensure that the business owner has to check whether there is any material, dangerous substance, or sealed container, etc. in order to prevent explosion of metal, etc." Article 254(1) of the same Rules provides that "the business owner shall take appropriate measures to prevent scattering, rupture or other dangerous work at a place where it is suitable to prevent shot or other dangerous work."

B. In full view of the statements in Gap evidence Nos. 6, 13, 15, Eul evidence Nos. 11 and 12, and the purport of the whole pleadings as to witness E of the court of first instance, the accident of this case is water.