Article 300 of the National Electrical Code (NEC) contains the general requirements for wiring methods and materials for power and lighting [Sec. 300.1(A)]. It includes the general requirements for ...

All questions and answers are based on the 2011 NEC. Q. What wiring methods are allowed by the Code in spaces above a lay-in ceiling? A. Section 300.22(C) applies to spaces used for air-handling ...

Thanks to major safety improvements, the number of fatal electrical injuries in the workplace has steadily decreased during the past 20 years, from 334 in 1992 to 139 in 2013. However, the trend with ...

When repairing and maintaining refrigeration equipment, it is a good practice to inspect the electrical wiring for any obvious issues such as damaged wiring or any loose connections. This is ...

Decide how much digging you’re prepared to do and how deep your trench will be. This helps determine the type of wiring and the method you’ll use. Underground cable and wire can be installed at ...

When replacing refrigeration components, wiring may also need updating. Techs must choose the correct wire gauge for the ...

Wire bonding is widely used in electronic devices, the semiconductor industry, and microelectronics. It enables interconnections between the die and other electronic components in an integrated ...