199—20.8 (476) Safety.
	   20.8(1) Protective measures. Each utility shall exercise reasonable care to reduce those hazards inherent in connection with its utility service and to which its employees, its customers, and the general public may be subjected and shall adopt and execute a safety program designed to protect the public and fitted to the size and type of its operations.
	   20.8(2) Accident investigation and prevention. The utility shall give reasonable assistance to the board in the investigation of the cause of accidents and in the determination of suitable means of preventing accidents.
	   20.8(3) Reportable accidents. Each utility shall maintain a summary of all reportable accidents, as defined in 199—25.5(476,478), arising from its operations.
	   20.8(4) Grounding of secondary distribution system. Unless otherwise specified by the board, each utility shall comply with, and shall encourage its customers to comply with, the applicable provisions of the acceptable standards listed in 20.5(2) for the grounding of secondary circuits and equipment.
Ground connections should be tested for resistance at the time of installation. The utility shall keep a record of all ground resistance measurements.
The utility shall establish a program of inspection so that all artificial grounds installed by it shall be inspected within reasonable periods of time.