The calculation of general-purpose branch circuits is determined by using a general unit load of 3 volt-amperes per square foot for one- and two-family dwelling units, which is derived from NEC Table 220.12.
Confronted by the COVID-19 global pandemic, building departments across the country face a challenging question: “Do we shut down or stay open?” Fortunately, there are options that allow for safe, continued building department operation.
The Electrical Safety Foundation International (ESFI) recently released an infographic, “Electrical Safety While Working From Home,” as consumers shift from working in an office setting to working from their homes. The safety tips provided highlight potential electrical safety hazards and how to prevent them.
Without a supply of energy to replenish the battery, the benefit of an ESS can be limited in a prolonged outage. A combination of solar and storage and energy management of supply and loads are needed to make electricity supply reliable to the homeowner and business owner.
In order to truly understand the implications of the changes to the measuring provisions of Section 210 in the 2020 National Electrical Code (NEC), one must go back and review how we arrived at that point.
A PV system is relatively simple in concept, but after the NEC requirements are added for safety, the execution of the system requires considerable attention to detail. There are also significant numbers of electrical inspectors that are new to the field of inspecting PV systems.
As recent reports indicate a rapid expansion of COVID-19 around the globe, the National Fire Protection Association (NFPA) is committed to providing the information and resources emergency responders, healthcare facilities, authorities having jurisdiction (AHJ), and others need as they work to minimize the virus’s spread and mitigate its impact.
NECA is pleased to present a series of summaries and FAQs for our contractors and chapters to utilize as they address many of the questions and concerns related to the paid sick leave, paid family leave, and other provisions of the Act.
The 2020 version of the NEC just took a leap forward for at least one of these two locations with changes to a rule that has been a long-standing requirement for many years – the six (6) disconnect rule found in 230.71.