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Wiring of the Apollo Solar Cabinet
A good grounding system is essential.
GOOD GROUNDS -- The quality of the connection to earth ground is the single most
important issue. The resistance from the ground system to the earth must be very low. You
will need many ground rods and if the soil is dry and/or sandy, extreme measures, such as
adding carbon dust, will be required to get a reasonably low resistance.
EQUAL POTENTIAL GROUNDS -- Equal Potential Grounding is an important rule. This
means a single “star point” ground in your equipment with the best earth connection you
have connected to that same star point. Use the Panel in the Apollo Cabinet as the star
point ground.
GROUND WIRING -- All ground wires must be short, thick and straight so they are free of
resistance and inductance. Any coil in a ground wire makes an inductance which prohibits
the fast surge from going to ground.
PREVENT RODENT DAMAGE –We recommend running all the wiring to the Cabinet from
the PV Array, the Battery Enclosures and the BTS Equipment Rack in covered metal wiring
trays. Rodents like to eat the insulation from wires. It is the largest single cause of field
problems.
