QUESTIONS SOLUTIONS DETAILED
EXPLANATIONS VERIFIED
●● Underground plant
Answer: most expensive system, has the highest cable placement
capacity, longest projected lifespan, typically in excess of 50 years.
Highest initial cost
●● Direct-buried plant
Answer: A lifespan of 30 years or shorter, depending on different
conditions
●● Aerial plant
Answer: Aerial plant typically has an expected life of about 30 years
●● Route approval
Answer: OSP designer should discuss routing with the customer. The
customer may have reasons not to use the proposed route (e.g., future
plans for buildings and parking lots)
●● Force route changes
Answer: field conditions may force route changes:
, • Adverse ground conditions
• Coordination with other utilities
• Missing easement or permits
• Customer space utilization issues
• Document errors or omissions
• Unusual or special land use or activities in close proximity to the route
●● Existing route
Answer: The existing route may be fully adequate. The OSP designer
should evaluate the existing:
• Pole lines.
• Conduit.
• MHs.
• Handholes (HHs).
• Tunnels.
●● Alternate Route Considerations
Answer: An alternative route may be considered if the field investigation
indicates the proposed route would
• High installation costs.
• An unsafe working environment.
• Future maintenance issues.