Wiktionary(0.00 / 0 votes)Rate this definition: 1  plate(Noun) A dish from which food is served or eaten. 2  plate(Noun) The contents of such a dish. 3  plate(Noun) A course at a meal. 4  plate(Noun) A flat metallic object of uniform thickness. 5  plate(Noun) A vehicle license plate. 6  plate(Noun) A decorative or food service item coated with silver.
Hose Bibb Vacuum Breaker Hose bibb vacuum breakers consists of a spring-loaded check valve that seals against an atmospheric outlet when the water supply is turned on. When the supply is turned off, the device vents to atmosphere, thus protecting against backsiphonage conditions. A diagram of a hose bibb vacuum breaker is illustrated below along with a typical installation: Standardized Information for Hose Bibb Vacuum Breaker No information available at this time.
TP MCB is used in 3phase 4wire system. It is denoted as TP+N which will mean a three pole device with external neutral link which can be isolated if required. For the 4 pole breakers, protection applies to current flow through all poles. However when breaker trips or manually opened, all poles are disconnected.