Page 123 - Solar Power in Building Design The Engineer's Complete Design Resource

PHOTOVOLTAIC DESIGN GUIDELINES 93

WARNING SIGNS

For a solar installation system:

Electric shock hazard—Do not touch terminals—Terminals on both line and load sides may be
energized in open position.

For a switchgear and metering system:

Warning—Electric shock hazard—Do not touch terminals—Terminals on both the line and load
side may be energized in the open position.

For pieces of solar power equipment:

Warning—Electric shock hazard—Dangerous voltages and currents—No user-serviceable parts
inside—Contact qualified service personnel for assistance.

For battery rooms and containers:

Warning—Electric shock hazard—Dangerous voltages and currents—Explosive gas—No
sparks or flames—No smoking—Acid burns—Wear protective clothing when servicing typical
solar power system safety warning tags.

Photovoltaic Design Guidelines

When designing solar power generation systems, the designer must pay specific atten-
tion to the selection of PV modules, inverters, and installation material and labor
expenses, and specifically be mindful of the financial costs of the overall project. The
designer must also assume responsibility to assist the end user with rebate procure-
ment documentation. The following are major highlights that must be taken into
consideration.

Photovoltaic module design parameters

1 Panel rated power (185, 175, 750 W, etc.)
2 Unit voltage (6, 12, 24, 48 V, etc.)
3 Rated amps
4 Rated voltage
5 Short-circuit amperes
6 Short-circuit current
7 Open-circuit volts
8 Panel width, length, and thickness
9 Panel weight
10 Ease of cell interconnection and wiring