NFPA 70: National Electrical Code

NFPA 70: National Electrical Code

Standard for electrical installations

Last update 09/06/2021

NFPA 70: National Electrical Code

NFPA 70 or NATIONAL ELECTRICAL CODE is the reference standard for electrical installations in premises and buildings in USA

The first National Electrical Code was developed in 1897. In 1911, the National Fire Protection Association (NFPA) became the sponsor, and the Code has been revised on numerous occasions since that date. Now it is revised every three years. The latest edition is 2020. The NEC is available for adoption as the electrical law in a governmental jurisdiction. That governmental jurisdiction may add one or more amendments to allow for local needs, preferences, or conditions (see for example the Chicago Electrical Code).

The code was born soon after Thomas A. Edison's Pearl Street Station was installed in New York City in 1882. Electrical fires were becoming commonplace and, by 1897, the problem was reaching epidemic proportions. A diverse group of knowledgeable, concerned individuals assembled to address this critical issue. The need for standardization was apparent. The consensus of more than 1200 individuals produced the first set of nationally adopted rules to govern electrical installations and operations: the National Electrical
Code was born. The NEC states its purpose as "the practical safeguarding of persons and property from hazards arising from the use of electricity". This objective has remained constant throughout the NEC’s existence, and the principles it contains continue to grow and change with the dynamic electrical industry.

The NFPA 70 or NEC is the reference standard for several electrical standards among which:

  • UL 508A: the product standard for Industrial Control Panels
  • NFPA 79: the reference for the electrical installations in Machineries

Safety in Collaborative Robotics

There is no “Collaborative Robot”. That is one of the first statements you hear from people working in Collaborative Robotics. The reason is because the robot can be designed for a collaborative task, but it is the Application that makes the “Robot Collaborative”. The reference standard for Collaborative Application is  ISO/TS 15066:2016 - ROBOTS AND ROBOTIC DEVICES -- COLLABORATIVE ROBOTS Not only for the unfortunate title, the standard will be included in the new edition of 2 important standards on Robots: ISO 10218-1: Robotics — Safety requirements for robot systems in an industrial envir