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  • Input Sensors – Your eyes, fingers and…more?

    No need to "eyeball" it any more. Input sensors take the place of our human senses… and do a great job of it, to boot.

    There are several types of input sensors. One of the first I encountered was the photo electric sensor or photo eye. These eyes controlled remote relays with a set of integrated mechanical contacts. Located inside the sensor body, the contacts changed state with a tiny magnetic relay.

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  • Greenlee Offers 855GX IntelliBender, Advanced Bending Software via BendWorks

    Greenlee’s 855GX IntelliBender cable and conduit bender offers electrical contractors a programmable and portable bender capable of making the most advanced bends with relative ease and speed.

    It can bend 3/4-inch rigid in either of its 1-inch rigid or 1-inch EMT shoe grooves, and 1-to-2-inch rigid, EMT or conduit with just one shoe featuring smart sensors that know exactly what diameter conduit and type you are going to bend.

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  • Choosing the Right Input Sensor

    With so many types of input sensors available, you need to narrow down your selection to what will give you the feedback required. As with human "input sensors," each type has a dedicated function. You need to match the sensor with the object being sensed and what that feedback does.

    Another consideration is the action taken when the sensor notices a change of state. In our human example, a sudden bright light sends a signal to the brain, causing us to shield our eyes.

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  • Overcurrent Protection Designed for PV

    Direct-current (DC) electrical distribution is certainly nothing new – in fact, the technology was the basis for Thomas Edison’s original designs back in the 1880s. While alternating current (AC) distribution has since become more prevalent, the rapid growth in solar photovoltaic (PV) installations and more recent interest in energy storage has electrical contractors paying attention to DC requirements all over again.

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  • Leviton Partners with Samsung’s SmartThings for Home Energy Savings

    Leviton lighting controls, fan controls, 15A switches, plug-in load controls and heavy-duty loads controls for compressors as well as generators, sensors, and thermostats. Mesh networking technologies allow for installations in larger homes with dozens of integrated attachment devices for whole-house automation.

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  • New Fuses Address Arc-Flash Risks Posed by Medium-Voltage Connections

    Despite the volumes that have been written regarding the dangers of arc-flash to electrical workers, many facilities are still working to address the risks in their own facilities. It can be a complicated issue, with what can often be multiple layers of hazards.

    Of course, the first line of defense is personal protective equipment (PPE), and tremendous advances have been made in this area over the last decade.

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