What was the first significant document related to electrical standards published in 1897?

The first significant document related to electrical standards published in 1897 was the National Electrical Code (NEC). This code was developed to establish a set of standards and best practices for electrical installations and to ensure a consistent level of safety and electrical work quality across various jurisdictions. The NEC emerged from the need to mitigate the hazards posed by electricity, particularly as electrical systems became more prevalent during that time.

The development of the NEC was driven by concerns over electrical safety, particularly in residential and commercial settings. By providing a standardized framework, it not only helped reduce the risks of electrical fires and accidents but also provided guidelines for the industry that professionals could rely on. This code is regularly updated to reflect advances in technology and changes in safety practices, indicating its foundational importance in the electrical industry.

Other documents mentioned may have relevance in the electrical field or might focus on specific aspects of electrical work, but they do not have the same historical significance or foundational role in creating a structure for electrical standards as the National Electrical Code does.