Surge protection for photovoltaics
A color-coded, modular plug-in, and DIN-rail mounted design with a voltage rejection feature and easyID visual indication makes the new Cooper Bussmann Surge Protective Device (SPD) simple to identify, install, and maintain. The device is the first SPD for dc photovoltaic (PV) applications to be recognized by the UL1449 third edition, is IEC61643-11 compliant, and is simple to specify for solar power applications globally. Built-in, fast-acting, short-circuit interruption technology for 600, 1000, and 1,200 Vdc systems safely shunts damaging surges and overvoltages to ground. This high-performance capability also eliminates the need for additional fuses or overcurrent protection and associated panel space, providing PV users with complete protection at substantial cost savings.
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Annual Salary Survey
After almost a decade of uncertainty, the confidence of plant floor managers is soaring. Even with a number of challenges and while implementing new technologies, there is a renewed sense of optimism among plant managers about their business and their future.
The respondents to the 2014 Plant Engineering Salary Survey come from throughout the U.S. and serve a variety of industries, but they are uniform in their optimism about manufacturing. This year’s survey found 79% consider manufacturing a secure career. That’s up from 75% in 2013 and significantly higher than the 63% figure when Plant Engineering first started asking that question a decade ago.