Home Inspection Chapter 7
What would 2 wires usually mean?
120 volt service
True or False: The drip loop is typically part of the service drop.
False
True or False: The wire size for the service drop must be the same as the wire size for the service entrance conductors.
False
True/False: All service entrance conductors must be attached above roof level.
False
True/False: All service entrance conductors must be in conduit.
False
True/False: Drip loop should be as close to the roof surface as possible
False
Seven common problems with service drops...
overhead wires to low, damaged or frayed wires, trees interfering, wires to close to door/windows, not secured well to house, poor connections between drop and entrance, not enough clearance between roofs
Clearance above ground, swimming pools, and roofs
18ft above roads, 12ft above driveways, 8-10ft above flat roof, 18in above sloped roof, 221/2ft from water in any direction, 3ft above sloped roof that pitches more than 4-12in, 10 ft above walkway
How many wires would you typically find in a 240 volt service drop?
3
What would 4 wires mean?
3 phase
Are service laterals overhead or underground?
Underground
Is the service drop overhead or underground?
Overhead
True or False: Service entrance conductors may run from the service drop to the service box or service panel.
True
True or False: The service size is determined by the amperage and voltage rating of the service.
True
Service entrance conductors run from the___to the___.
drop to the box.
Ten common problems with service entrance conductors.
no drip loop, no mast head, mast head not weather tight, mast/conduit bent, mast/conduit rusted, mast rotted, conduit/cable not well secured, conduit/cable not weather tight, conduit/cable not well sealed at penetration, cable frayed, damaged, or covered by siding.
