Valgustussüsteemi jaotusskeem (Hädavalduriitvarustus ja kõrgete hoone)
Master Electrician
Väli: Põhiline Elektroenergia
0
China
Valgustussüsteemi jaotusskeem (eriolukorra valguse toiteallikas ja kõrgehoone)
Kui hoone on I klassi kõrgehoone, siis kaheks toiteallikaks on peamine toiteallikas ja eriolukorra toiteallikas. Kui tegu on II klassi kõrgehoonega, on sobiv kasutada topeltvoogulist toidet. Eriolukorra valguse jaotuskastrit tuleks paigutada vastavalt tulekahjuohutuse piirkonnale
Anna vihje ja julgesta autorit!
Ekspertide kohta
Master Electrician
0
China
Soovitatud
What are the advantages of using a common grounding system in power distribution, and what precautions should be taken?
What Is Common Grounding?Common grounding refers to the practice where a system’s functional (working) grounding, equipment protective grounding, and lightning protection grounding share a single grounding electrode system. Alternatively, it may mean that grounding conductors from multiple electrical devices are connected together and linked to one or more common grounding electrodes.1. Advantages of Common Grounding Simpler system with fewer grounding conductors, making maintenance and inspecti
Echo
11/05/2025
Mis on 10 peamist tabu ja ettevaatusabinõud jaotuskastide ja kabinetide paigaldamisel?
Jaoturi- ja kabinetide paigaldamisel on palju tabueid ja probleemseid tavasid, mida tuleb tähelepanu juures jälgida. Erilistes piirkondades võivad ebatõhusad toimingud paigaldamise ajal põhjustada tõsiseid tagajärgi. Siin on toodud ka mõned parandusmeetmed eelmiste vigade parandamiseks. Järgime koos ja vaatame üle tavalisi tabueid ja nõuandeid jaoturite ja kabinetide paigaldamisel!1. Tabu: Valgustuse jaoturit (paneeli) ei kontrollita saabumisel.Tagajärg: Kui valgustuse jaoturit (paneeli) ei kont
James
11/04/2025
What Are the Factors Influencing the Impact of Lightning on 10kV Distribution Lines?
1. Induced Lightning OvervoltageInduced lightning overvoltage refers to the transient overvoltage generated on overhead distribution lines due to nearby lightning discharges, even when the line is not directly struck. When a lightning flash occurs in the vicinity, it induces a large amount of charge on the conductors—opposite in polarity to the charge in the thundercloud.Statistical data shows that lightning-related faults caused by induced overvoltages account for approximately 90% of total fau
Echo
11/03/2025
Operation and Fault Handling of High and Low Voltage Power Distribution Systems
Basic Composition and Function of Circuit Breaker Failure ProtectionCircuit breaker failure protection refers to a protective scheme that operates when the relay protection of a faulty electrical device issues a trip command but the circuit breaker fails to operate. It uses the protection trip signal from the faulty equipment and the current measurement from the failed breaker to determine breaker failure. The protection can then isolate other relevant breakers within the same substation in a sh
Felix Spark
10/28/2025
