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    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  3. Residual-current device - Wikipedia

    en.wikipedia.org/wiki/Residual-current_device

    A residual-current device (RCD), residual-current circuit breaker (RCCB) or ground fault circuit interrupter (GFCI) [a] is an electrical safety device that interrupts an electrical circuit when the current passing through a conductor is not equal and opposite in both directions, therefore indicating leakage current to ground or current flowing to another powered conductor.

  4. 5ESS Switching System - Wikipedia

    en.wikipedia.org/wiki/5ESS_Switching_System

    The standalone VCDX was also capable of serving as a switch for very small wire centers (a CDX- Community dial office) of fewer than ~400 lines. However, for small wire centers, 400-4000 lines, that function was usually served by RSM's, a 5ESS "Remote SM", ORM's or Wired ORM's. The RSM is controlled by T1 lines connected to a DLTU unit.

  5. NEMA connector - Wikipedia

    en.wikipedia.org/wiki/NEMA_connector

    A red receptacle may indicate a special-service outlet such as one connected to an emergency standby power source. The Canadian Electrical Code requires that "essential" receptacles in hospitals, connected to emergency power systems, must be red. [43] At least one manufacturer makes a yellow receptacle, which identifies it as corrosion-resistant.

  6. Disconnector - Wikipedia

    en.wikipedia.org/wiki/Disconnector

    In electrical engineering, a disconnector, disconnect switch or isolator switch is a type of switching device with visible contacts, used to ensure that an electrical circuit is completely de-energized for service or maintenance.

  7. Rolex retail prices jump in 2025 as used prices continue to ...

    www.aol.com/finance/rolex-retail-prices-jump...

    You could be paying more for a new Rolex watch at an authorized dealer — if you can find one in stock, Meanwhile, used Rolex prices fell across the globe, continuing a trend that began in 2022.