Q My question pertains to an installation in Fairfax County, Va. that still follows the 1996 NEC. We have a project where the main electrical service is located in the same room as the ...

Fire pump controllers are control panels containing electrical components, such as circuit breaker, switches, relays, and other devices, dedicated to the operation of fire pumps. The devices within a ...

LONDON--(BUSINESS WIRE)--Pentair (NYSE:PNR), a leading provider of water treatment and sustainable solutions, introduces its versatile sump pump controller to help minimize the risk of flooding at ...

It’s not every project write-up that opens with a sentence like “I had this TURBOVAC 50 turbomolecular pump laying around…”, but then again not every write-up comes from someone with a lab as stuffed ...

The primary job of most bilge pumps on most boats is to clear infliction water from the bilges (https://en.wikipedia.org/wiki/Bilge_pump). A bilge pump is a key piece ...

The ORB heat pump controller is a patent-pending fully integrated equipment intelligence system offering complete operating, monitoring, control, and diagnostics capabilities. It performs the ...

Now, the water level begins to decrease and the shorter sensor will be no longer in contact with the water, but IC1C output will be hold high by the signal return to pin #5 of IC1B, so the pump will ...

[Mark Aren] purchased a pair of Turbomolecular pumps (TMP) sans controllers, and then built an FPGA based BLDC controller for the Turbomolecular pumps. A TMP is similar to a jet turbine, consisting of ...

GM issues a service update for 2025-2026 GMC Sierra and Savana models to replace the fuel pump power control module, ...