• Use ladders with steps broad enough to permit safe work.
5 When working in high places, wear harnesses and use scaffolding.
• When working at heights of 6 ft or more, use scaffolds or other equipment to
ensure a stable work platform.
• Scaffolds should be designed and erected by a qualified person.
• When it is difficult to erect a stable work platform, install safety nets, wear
harnesses, and take other measures to prevent falls.
• Regulations mandate the use of harnesses. Fasten harnesses securely, and check
that the length of lifelines is 6 ft or less.
• Attach the primary support line securely to a metal fixture installed for that
purpose on a ridge or beam.
6 Install enclosures and covers.
• Install enclosures, guardrails, or covers at the end of work decks that are 10 ft or
more above ground, at openings, and at other dangerous locations.
• When it is extremely difficult to install enclosures, guardrails, or covers, or when
they must be removed to work in that location, install a safety net, wear harnesses,
and take other measures to prevent falls.
7 Protect against falling objects.
• When objects are thrown down from a height of 6 ft or more, appoint a
surveillance person on the ground and warn others about falling objects.
• Do not allow third parties to enter the work area during construction.
• Arrange tools and materials neatly and secure them with ropes, or use bags or
other measures to prevent falling objects.
8 Other
• When there are electric power lines near the roof or eaves, request the power
utility to take advance measures to prevent shock.
• Check the health of workers before starting work.
• Lift packaged modules by grasping both sides of the package. Do not lift by
grasping the band, as the band can break.
• Never step or sit on the glass surface of a solar module.
1.3 PV MODULES
Warning
Wiring work should be performed according to the provisions of the National
Electrical Code（NEC）. Grounding work and wiring connections to the inverter should
be performed by a qualified electrician.
The solar array generates electricity whenever it is exposed to sunlight. Be careful
when handling it. There is a danger of shock if you touch the connectors or wires of
the electric cables.
1 Points to check before wiring.
