TB 70 Flashcards
(48 cards)
What are the metro light rail in LA?
Blue
Green
Gold
Expo
Crenshaw/LAX
What powers the light rail vehicles?
Catenary system 750 volts
What is the metro green line?
Along 105 freeway. Norwalk to Redondo
What is the metro gold line?
DTLA to Pasadena
What is the metro Crenshaw LAX line?
Will extend expo line to green line
What is the metro blue line?
DTLA to DT long beach
What is the expo line?
DTLA to Culver City
750 v catenary system is supplied power by what?
Concerted by transformer from 34.5kv
Where does light rail 34.5kv enter the system?
Traction power substations
During light rail emergencies always call who first?
ROC
How many miles does the MTA transit rail system contain
87 miles with 80 stations
Where are the de-energizing mushroom buttons located? (Blue light stations)
At all Traction power substations, cross passages, elevated stations and remote access points
Which tunnel stations have automatic wet standpipes?
1st street tunnel
Flower street
Milepost markers are used throughout light rail network and do not exceed distances of what?
1/10th of a mile
Where are automatic sprinklers located in light rail systems?
Everywhere except tunnels
What type of sign identifies light rail cross passage
Red exit sign
What two actions can be accomplished at blue light stations?
Call ROC
De-energize rail in that segment
What size pipe in light rail water mains
6 inches
Light rail flower street tunnel has escape hatches located every ____ feet
800
Light rail lighting is provided with battery backup power that can supply how long
Minimum 90 mins
Light rail enclosed stations are equipped with ventilations fans when they are greater than how many feet?
1000
In flower street tunnel 2.5 inch outlets are located how often?
Every 250 feet
How many landlines are available at an EMP?
2
Are there any cross passages in flower street tunnel
None