Lightning protection, earthing and surge protection of base transmission stations
An effective lightning protection design for a telecommunication facility requires an integrated approach to a number of key factors: • Protection against direct lightning strikes • Effective earth termination network for discharge of lightning current • Integration of power supply and lightning protection earthing systems • Extensive equipotential bonding to prevent electric shock • Mitigation for ground potential rise • Prevention of conducted surges to equipment cabin • Mitigation of LEMP This paper examines the challenges and solutions in the integration of lightning protection, earthing and surge protection for a base transmission station comprising a telecom tower and an equipment cabin, taking into consideration external power source via overhead lines.
Grounds for Grounding: A Circuit to System Handbook
the 2008 National Electrical Code and the NEC 2008 Handbook respectively. A home's In addition, all of the home's branch circuits and feeders system. They each have different functions, but they work together to make the building's extends the ground connection — and the Code defines “ground” as the earth. Abstract: This article outlines power, ground PCB, and system layout hints Just like a high-rise building in earthquake-prone areas, great circuit design 5. American Technical Ceramics, Circuit Designer's Notebook, (Capacitor handbook).
The potential vorticity flux through the Yucatan Channel and the Loop Current in the Gulf of Mexico
Two‐year‐long time series of current and density structure measurements across the Yucatan Channel's main section allow the calculation of the time‐dependent potential vorticity flux between the Gulf of Mexico and the Caribbean Sea, which is characterized by alternating periods of positive (cyclonic) and negative (anti‐cyclonic) vorticity influx. Periods of negative cumulative vorticity influx are related to the Loop Current extending into the Gulf of Mexico, whereas periods of positive cumulative vorticity influx relate to a Loop Current retraction, sometimes coincident with the shedding of an anti‐cyclonic eddy.