Space ladder treads evenly from 10 to 14 inches apart.
When working around equipment that could cause electric shock, use only
wooden or fiberglass ladders.
Do not put more weight on a ladder than it’s designed for—read the
manufacturer’s recommended loading, and act accordingly.
Repair faulty ladders or label them as “Do Not Use.”
When a work site has 25 employees or more, use a double-
cleated ladder with center rail. This is especially important
when there is only one way to enter or exit a working area.
Double-cleated ladders are also required where there is two-
way traffic.
Hand and Power Tools
Hand and power tools can be hazardous. Injuries can occur
from flying objects and metal splinters to harmful dusts. Workplace risks usually
occur through mishandling and poor upkeep. Workers should follow these basic
tool safety rules:
Maintain the tool properly and regularly.
Use the right tool for the job.
Follow the manufacturer’s instructions.
Wear the proper personal protective equipment.
Equip power tools with the necessary safeguards. Each power tool has its own
set of requirements for use. Those rules hinge primarily on the power source.
When installing PV systems, workers will use electric power tools, air-filled tools,
hydraulic tools, and tools that require liquids such as gasoline. Knowing the haz-
ards associated with the power source will dramatically reduce the number of
potential incidents.
Personal Protective Equipment
Personal protective equipment (PPE) protects workers from harm. Dangers,
such as falling items, unsecure materials, and loud noises, can cause injury. Exam-
ples of PPE include:
Safety glasses
Face shields for eye and face safety
Hardhats for head protection
Steel-toed safety shoes for foot protection
Armor for hands and arms, such as gloves
Hearing protection devices, such as earplugs or earmuffs
NOTE
Fixed ladders should have one of the
following: (1) a safety mechanism;
(2) pulley or zip lifelines every 150 feet
with rest areas; (3) various sections,
each one no greater than 50 feet.
28 ADVANCED PHOTOVOLTAIC INSTALLATIONS
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