Untitled Deck Flashcards
(41 cards)
What does the face of a utility pole refer to?
The concave side
What is the minimum height for the top of a conduit system below the top of the rails of a street railway?
36 inches
What is the minimum height for the top of a conduit system below the top of the rails of a railroad?
60 inches
What type of equipment is installed in a substation that refers to SF6?
Circuit breaker
What does a wattmeter measure?
Power consumed
What voltage classification does a transmission line of 345 kV fall under?
EHV
What indicates it is safe to connect lines when phasing out conductors?
Voltmeter reads 0 volts
What is the minimum separation between a communications cable and a 7.2 kV line in a manhole?
6 inches
What does ACSR stand for?
Aluminum conductor steel reinforced
What will aerial conductors with scratches and nicks experience?
High corona
According to OSHA, when must fall protection be used?
For employees working at elevated locations more than 4 feet
What does OPT-GW stand for?
Optic fiber ground wire
What component in a loudspeaker accomplishes the transduction of electrical signals into sound waves?
Driver
Which method is NOT acceptable for lowering the resistance of a grounding rod?
Remove water
What is the maximum number of overcurrent devices permitted in a lighting and receptacle panelboard?
42
What type of cable consists of four unshielded twisted-pair rated at 20 MHz?
Category 4
What is the symbol for ohms?
Ω
How should wood poles next to poles supporting long spans be positioned?
Face away from the long span
What is a wire running from the attachment near the top of the pole to a rod and anchor installed in the ground called?
Anchor guy or down guy
How many channels does a T1 line have?
24
What is the rating of Category 3 cable wire?
100 MHz
What device is a microphone connected to?
Mixer
How should bundled cables be pulled?
Simultaneously
What is the outer protective coating on a cable referred to as?
Jacket
