All Code references are based on the 2005 NEC. The grounding and bonding requirements in this column apply to solidly grounded systems that operate at not more than 600V, such as 120/240V, 120/208V, and 277/480V. Part 6 of this series on grounding...
Major power disturbances that originate outside of a building will almost always cause capacitive or inductive coupling, inadvertent contact with conductive building elements, or both, and that can disrupt or shut down a sensitive information...
All Code references are based on the 2005 NEC. The grounding and bonding requirements in this column apply to solidly grounded systems that operate at not more than 600V, such as 120/240V, 120/208V, and 277/480V. NASCAR racers treat their tires...
All Code references are based on the 2005 NEC. The grounding and bonding requirements in this column apply to solidly grounded systems that operate at not more than 600V, such as 120/240V, 120/208V, and 277/480V. What little outbuilding was a...
All Code references are based on the 2005 NEC. The grounding and bonding requirements in this column apply to solidly grounded systems that operate at not more than 600V, such as 120/240V, 120/208V, and 277/480V. If you don't work with generators...
A single-speed motor has one rated speed at which it runs when supplied with the nameplate voltage and frequency. A multispeed motor will run at more than one speed depending on how you connect it to the supply. Multispeed motors typically have...
All Code references are based on the 2005 National Electrical Code. Because utilities provide grounded AC services and most facilities have at least one utility service connection, a grounded AC service most likely provides power to your premises...
Do the myriad rules about grounding sometimes seem a bit too much to handle? Do grounding implementation problems sometimes leave you dazed and confused, with the correct solution seemingly a bit over your head? If so, don't feel alone. Despite...
All Code references are based on the 2005 National Electrical Code. The grounding and bonding requirements in this column apply to solidly grounded systems that operate at not more than 600V, such as 120/240V, 120/208V, and 277/480V. Art. 250's...
All Code references are based on the 2005 National Electrical Code. The grounding and bonding requirements in this column apply to solidly grounded systems that operate at not more than 600V, such as 120/240V, 120/208V, and 277/480V. If someone...
