In-Plant Communications(QF) Flashcards
What kind of communication system do we have ?
Intra plant & plant to offsite
How does in plant communication system interface with NA system?
Control room sends and receives signals from and to LMT & RMT’s
How does In plant communication interface with NG system ?
480VAC Load Center provides power to plant multiplexing system
What does PMUX system do for unit 1 control room ?
Send and receives signals from SRP switchyard via RMT & LMT
How does QF system interface with NH system ?
.NH provides power to In-Plant communications system
.NH provides power to plant multiplexing system
How does QF system interface with CW system?
Cooling tower fans are controlled from control room using Remote Multiplex signals
What does PMUX system interface with ?
Plant annunciator (RK)
Plant computer (RJ)
Main control board (RM)
NGN-L43 & NGN-L44
What does EPABX system do ?
Provides communication from site telephones and interfaces with public telephone systems and public address system (PA)
What is EPABX normally powered from ? What is it alternately powered from ?
From 120VAC instrument power (NN) & alternate power supply is 48 volt backup battery
What equipment does PA system include ?
Master control cabinet
Remote central amplifier
Speakers located throughout plant
Where can the Emergency Evacuation Alarm System be activated from?
From siren command control unit in each units control room
What is the Sound Powered system for ?
To allow communication between fire department and control room
Describe the Sound Powered Phone system ?
Requires no external power and has a direct private line from fuel building to control room
What’re the two ways of communications for fire department and control room during a fire ?
Plant two way radio system
Sound powered phone system
What is a rind down phone ?
Phone that automatically calls ECC in control room
