If the power source is a listed Class 2 transformer or listed Class 2 power supply — or it’s in listed equipment marked to identify the Class 2 power source — you’ve got a Class 2 circuit between the ...

Article 725 provides the requirements for Class 2 circuits in Part III. The definitions for Class 2 circuits can be found in Art. 100. In the November 2020 issue, we discussed the general requirements ...

For three decades at Columbia Journalism School, Sam Freedman has encouraged students to try long-form narratives. His brand of tough love has paid dividends. By Emma Goldberg The night before the ...