Page 131 - Alternative Energy Systems in Building Design

SOLAR POWER SYSTEM MAINTENANCE 107

Figure 3.54 Self-contained dual-axis solar power–tracking system. Photo courtesy
of MARTIFER.

■ Do not drop or allow objects to fall on the PV module.
■ Do not stand or step on modules.
■ Do not work on PV modules when they are wet. Keep in mind that wet modules,
when cracked or broken, can expose maintenance personnel to very high voltages.
■ Do not attempt to remove snow or ice from modules.
■ Do not direct artificially concentrated sunlight on modules.
■ Do not wear jewelry when working on modules.
■ Avoid working alone while performing field inspection or repair.
■ Wear suitable eye protection goggles and insulating gloves rated at 1000 V.
■ Do not touch terminals while modules are exposed to light without wearing elec-
trically insulated gloves.
■ Always have a fire extinguisher, a first-aid kit, and a hook or cane available when
performing work around energized equipment.
■ Do not install modules where flammable gases or vapors are present.

Solar Power System Maintenance

In general, solar power system maintenance is minimal, and PV modules often only
require a rinse and mopping with mild detergent once or twice a year. They should
be visually inspected for cracks, glass damage, and wire or cable damage. A periodic