Transmission Class Flashcards
These underground transmission circuits carry 115kV of electricity
High-pressure gas-filled
These types of underground transmission circuits carry 230kV of electricity
High-pressure oil-filled
This Circuit starts and ends at a substation
Hybrid circuit
Cross-linked polyethylene (XLPE) conductors are used in which circuit type?
Hybrid circuits
What are the three types of underground transmission circuits?
Hybrid
High-pressure has-filled
High-pressure oil-filled
What are the four components of every fall protection system?
Body support
Connectors
Anchorage
Rescue plan
When you are working on a dead end and your hoist is supporting a human load, what is your hoist good for?
85% of WLL of the hoist
When climbing a tower and you stop, what should you do?
Immediately attack work positioning strap and/or shock absorbing lanyard adjusted as short as possible
When you basket a wire rope sling and you reduce the angle from 90 to 30 degrees, what does it do to the WLL of the sling?
Reduces the WLL by 50%
When cleaning non ceramic insulators with a pressure washer, what’s the max pressure allowed, and what distance must you be away from insulator?
600psi, 10’ away
When Carrying non-ceramic insulators make sure to keep _________?
The bending of each end within 30° of horizontal while carrying a long load
What is MWD of 115kv in single layer fr?
48”
When working on 115kv and your MWD is 40”, what do you have to be in?
DLFR
What is your arc flash boundary on 115kv?
12’
How far should you place barricades from grounded vehicles?
Minimum of 10’