Porter-Cable PH350IS - Manual (Page 11)

GROUNDING THE GENERATOR
A grounding lug is supplied with the generator for
use when required by local electrical ordinances.
Refer to article 250 of the National Electrical Code
to clarify any needed grounding information. Your
local electric company or a certified electrician
should be able to help you with this information.
NOTE: Your engine is already grounded to the
frame by a grounding strap.
11- ENG D27381
EXTENSION CORDS
When using an appliance or tool at a considerable distance from the generator, a
3-wire extension cord that has a 3-blade grounding plug and a 3-slot receptacle
that accepts the tool's plug MUST be used in order to reduce the risk of
electrical shock. A cord of adequate size must be used. Using the following chart
to determine the minimum wire size required.
*NOTE: When amperage exceeds 20 amp; a 12 gauge extension cord should
not be used for long distances.
Extension Cord Wire Gauge Chart
Amperage
*Up to 20 amp draw
Up to 30 amp draw
Cord
Length
0 to 100 ft.
0 to 100 ft.
Wire Gauge
Size
12 ga.
10 ga.
An extension cord that is hot to the touch is overloaded.
Repair or replace damaged extension cords immediately.
DOUBLE THROW TRANSFER SWITCH
Potential hazards exist when a portable electric generator is
connected to the main electrical supply coming into the house.
It is at that point that the electrical generator could feed back into the utility
company's system causing possible electrocution of workers who are repairing
the electrical lines.
To avoid back feeding of electricity into utility systems, a double-throw transfer
switch must be installed between the generator and utility power. The Double-
Throw Transfer Switch should be installed by a licensed electrician and in com-
pliance with all state and local electrical codes. (When installing a Double-
Throw Transfer Switch, a minimum of 10 gauge wiring must be used.)
The electrician should also install a sub-panel to isolate the circuits you would
want to use during an emergency or electrical power outage. Your generator will
not be large enough to handle the load of all the lights, appliances, TV, etc. at
one time. To select which items to run during the electrical power outage, see
Wattage Calculation section in this manual.
OBTAINING ELECTRICITY FROM THE GENERATOR
There are basically 2 ways to obtain electricity from a generator:
1.
Use of extension cords directly from the generator to the appliance, lights,
tools, etc.
2. Use of a double-throw transfer switch installed directly to the main electrical
supply outside of house.
Grounding Lug