How to bond electric panel
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Bond motor to ground

What does Bond mean?
A bond is the connection point between the metal enclosure and the ground wire, as seen in illustration showing metal panel with bonding lug, and motor with ground screw.
Bonding is not grounding.
Grounding is when the ground wire makes connection to a ground rod driven into earth to a depth that meets local codes for grounding.
Buy: Bonding lug

GFCI and ground are not same thing, and both serve different functions in the electrical system. However to work correctly, and trip instantly and give maximum protection, a GFCI-protected circuit requires a proper ground.
Resources:
Why you need ground wire
How to wire GFCI

Best protection when all outdoor panels are bonded to ground.
Applies to pool equipment, solar panels, outdoor motors, above ground swimming pool pump etc.

If the panel or motor is installed with metal conduit that goes into soil, then that is probably sufficient. PVC conduit and flexible conduit are not conductive and a separate bond to ground is recommended.

To maximize household protection, all phone, satellite, pool equipment, solar systems and electric panels must be grounded. All household ground rods should be wired together if possible to protect from surge and nearby lightning strike. Best protection is to bond (connect) all ground wires and ground rods together to form a larger array of grounding that can absorb more energy.

The purpose of the ground is to provide a very low-resistance path for electrons to reach earth. If the ground is not conductive to earth, or offers resistance instead of low-resistance, then the ground will not function as expected. This mean higher risk of electrocution, slower acting GFCI, more stress on electrical wires and breakers and devices during a fault condition or insulation failure.
Why you need ground wire

Check local electric codes for correct depth and type of approved ground connection. Why? Grounding varies by type of soil. Dry rocky soils are not as conductive as wet sandy soils. Warm soils are more conductive than frozen soils, with frozen soil offering highest resistance, and often zero conductivity.

Typical installation for reasonably damp soils: Drive ground rod 8-10 feet into soil as per local code. Connect or Bond #6-8 bare copper wire to all outdoor electric equipment, including pumps, motors, subpanels, timers, satellite equipment, phone, antenna and PV solar panels and to solar glycol systems including pipes on roof. The ground wire is then attached to the ground rod using clamp.

Ground wire must be connected to ground rod.
If the ground wire has come loose from ground rod ... or a bond has come loose from panel ... danger ... do not touch until all power is turned off. De-energize main breaker, and then reconnect ground wire and secure very tight to prevent from coming loose.
Do NOT ground electric system to household water pipes. Stray current corrosion can cause pipes to deteriorate, or cause uncertain bond to ground because of plastic pipes. A poor grounding connection is not reliable.
Resource: Safe electric wiring
Electrical subpanels installed outdoors or in distant buildings can have a separate ground rod ... local codes vary. For example, outdoor pool equipment should have a separate ground rod. Satellite dish or antenna should have ground rod.

Buy:  
Ground rod and clamps at Amazon
Bonding lugs

Resources:
Why you need ground
Ground loop
How to install subpanel
How to wire transfer switch

Add 120-240 volt GFCI/AFCI to outdoor electric panel
main lug with GFCI

240Volt GFCI
Buy from my affiliate links:
Single-pole and double pole GFCI breakers at Amazon
AFCI circuit breaker

Buy
Subpanels at Amazon
Resources:
How to wire GFCI/AFCI circuit breaker
How to install subpanel


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