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  2. CCTV drain camera (plumbing) - Wikipedia

    en.wikipedia.org/wiki/CCTV_drain_camera_(plumbing)

    In the plumbing world, CCTV drain cameras are commonly used to detect and locate potential problems, such as debris buildups, collapsed pipe sections, root infestations, and pipe offsets. By providing a clear visual of the interior of the drainage system, these cameras help professionals diagnose issues accurately and plan effective solutions. [5]

  3. Earth-leakage protection device - Wikipedia

    en.wikipedia.org/wiki/Earth-leakage_protection...

    A wire break in the fault to load section, or in the earth to ground section, will disable operation of the devices. Requirement of an additional third wire from the load to the devices. Separate devices cannot be grounded individually. Any additional connection to Earth on the protected system can disable the detector.

  4. Leak detection - Wikipedia

    en.wikipedia.org/wiki/Leak_detection

    When a leak is determined to be valid based on set parameters, an alarm notification with leak video is generated and sent to a monitoring station. Optimal detection distance varies and is influenced by camera lens size, resolution, field of view, thermal detection range and sensitivity, leak size, and other factors.

  5. Water detector - Wikipedia

    en.wikipedia.org/wiki/Water_detector

    Electronic components used to make a simple water detector: battery, resistor, transistor, water sensor and piezoelectric buzzer for audible alert A water detector is an electronic device that is designed to detect the presence of water for purposes such as to provide an alert in time to allow the prevention of water leakage.

  6. Ground Zero Indicator - Wikipedia

    en.wikipedia.org/wiki/Ground_Zero_Indicator

    The Ground Zero Indicator, known by the acronym GZI was a specially designed shadowgraph instrument used by the British Royal Observer Corps during the Cold War to locate the Ground Zero of any nuclear explosion. It consisted of four horizontally mounted cardinal compass point pinhole cameras within a metal drum.

  7. Leak noise correlator - Wikipedia

    en.wikipedia.org/wiki/Leak_noise_correlator

    A leak noise correlator is an electronic device used for Leak Detection and as a leak locator to find leaks in pressurized water or gas lines.. Typically, microphones or acoustic sound sensors are placed in contact with the pipe, at two or more points, to record the sound emitted by a leak (e.g. a hissing noise) somewhere between the points.

  8. Tank leak detection - Wikipedia

    en.wikipedia.org/wiki/Tank_leak_detection

    Tank leak detection is implemented to alert the operator to a suspected release from any part of a storage tank system, what enables to prevent from soil contamination and loss of product. In many countries regulated UST are required to have an approved leak detection method so that leaks are discovered quickly and the release is stopped in time.

  9. 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, more specifically a form of Earth-leakage circuit breaker, that interrupts an electrical circuit when the current passing through line and neutral conductors of a circuit is not equal (the term residual relating to the imbalance), therefore ...