Electrical Trade Orientation: Hazards, PPE, and OSHA 10 Construction Safety

Objective. Learners will complete OSHA 10 Construction outreach training and correctly identify the leading hazards on electrical job sites—struck-by, caught-in, falls, and electrocution—and the controls that mitigate each.

Why Safety Comes First in Electrical Work

Electricians work with energy that cannot be seen, smelled, or heard until it causes injury. Every year, construction workers are killed or permanently injured by hazards that were predictable and preventable. OSHA 10 Construction outreach training exists for exactly this reason: to give every worker a baseline understanding of job-site hazards before they ever pick up a tool. Completing OSHA 10 is one of the first credentials you will earn in this program, and it will travel with you throughout your career.

The Fatal Four: Leading Causes of Construction Deaths

OSHA identifies four hazards that account for the majority of construction fatalities. Electricians face all four regularly.

Falls occur from ladders, scaffolding, floor openings, and unprotected edges. In electrical rough-in work, you may set fixtures at ceiling height or pull wire through attic spaces. Falls are prevented through guardrails, personal fall arrest systems (PFAS), and proper ladder setup and inspection. Never stand on the top two rungs of a stepladder.

Struck-by hazards happen when a worker is hit by a flying, falling, swinging, or rolling object. On an electrical site, conduit being hoisted overhead, dropped tools, and vehicles backing near work areas all create struck-by risk. Hard hats (Class E for electrical work), high-visibility vests, and controlled access zones are key controls.

Caught-in or caught-between hazards involve body parts or clothing being pulled into moving equipment, compressed between objects, or trapped in an excavation cave-in. Power tools with unguarded rotating parts and open trenches for underground conduit represent this hazard for electricians.

Electrocution is specific to workers who contact energized conductors or equipment. It is the hazard most closely tied to the electrical trade. Contact with overhead power lines, accidental energization of circuits during rough-in, and working on panels that were not properly de-energized all cause electrocution fatalities.

Lockout/Tagout (LOTO): The Core Electrocution Control

Before any electrician performs work on or near electrical equipment, the energy source must be isolated and verified de-energized. This process is called lockout/tagout (LOTO). The steps are:

1. Notify affected employees.

2. Identify all energy sources (electrical, stored, mechanical).

3. Shut down the equipment using normal stopping procedures.

4. Isolate the energy source at the disconnect or breaker.

5. Apply your personal lock and tag — your lock, your key.

6. Release or restrain stored energy (discharge capacitors, block gravity-loaded parts).

7. Verify de-energization with a properly rated meter before touching conductors.

LOTO is governed by OSHA standards. On construction sites, 29 CFR 1926 Subpart K covers electrical safety requirements, including work on or near energized parts.

Personal Protective Equipment (PPE) for Electricians

PPE is the last layer of defense in the hierarchy of controls — used when the hazard cannot be eliminated, substituted, engineered out, or controlled administratively. For electrical work, the minimum PPE includes:

Hard hat, Class E: Rated to protect against high-voltage electrical contact at the head, in addition to impact.
Safety glasses, ANSI Z87.1: Protect eyes from arc flash, flying debris, and chemical splash.
Class 00 rubber insulating gloves with leather protectors: Rated for specific voltage exposure; leather protectors prevent cuts that compromise the rubber. Gloves must be air-tested before each use and inspected for cracks, punctures, or stiffness.
Voltage-rated footwear: Insulating footwear reduces the path of current through the body if contact occurs.

PPE must fit correctly and be inspected before every use. Damaged PPE must be removed from service immediately.

The Hierarchy of Controls

Controls are not all equal. OSHA and industry standards rank them from most to least effective:

1. Elimination — physically remove the hazard (de-energize the circuit).

2. Substitution — replace with a less hazardous alternative.

3. Engineering controls — isolate people from the hazard (conduit guards, GFCI protection).

4. Administrative controls — change the way people work (LOTO procedures, safety training, job rotation).

5. PPE — protect the worker's body from the hazard.

When completing a Job Hazard Analysis (JHA), your job is to work through this hierarchy for every task and every tool listed. A proper JHA identifies the job steps, the potential hazards at each step, and the selected controls — always aiming as high on the hierarchy as possible.

OSHA 10 Construction: What to Expect

OSHA 10 is a 10-hour outreach course delivered by an OSHA-authorized trainer. It is not an OSHA inspection certification — it is a safety awareness credential. Modules cover introduction to OSHA, the Fatal Four hazards, electrical hazards (including 29 CFR 1926 Subpart K topics), personal protective equipment, and additional elective topics chosen by the trainer. You must complete all modules and pass the final assessment to receive your OSHA 10 wallet card. The card is wallet-sized, shows your name and completion date, and is recognized by employers nationwide. Keep it — it is yours permanently.

Key terms10

Fatal FourThe four leading causes of construction worker fatalities identified by OSHA: falls, struck-by, caught-in or caught-between, and electrocution.

Lockout/Tagout (LOTO)A procedure that isolates hazardous energy sources and verifies de-energization before work begins, using personal locks and tags so the equipment cannot be re-energized.

Hierarchy of ControlsA ranked system for managing hazards: elimination, substitution, engineering controls, administrative controls, and PPE — from most to least effective.

Class E Hard HatA hard hat rated for electrical protection, tested to resist high-voltage penetration at the head in addition to providing impact protection.

ANSI Z87.1The American National Standard for occupational eye and face protection, specifying impact, optical, and coverage requirements for safety eyewear.

Class 00 Rubber Insulating GlovesVoltage-rated rubber gloves designed for protection during low-voltage electrical work; must be worn with leather protectors and tested before each use.

Job Hazard Analysis (JHA)A written document that breaks a job into steps, identifies potential hazards at each step, and specifies controls to eliminate or reduce those hazards.

29 CFR 1926 Subpart KThe section of OSHA's construction standards that addresses electrical safety requirements on construction sites.

GFCI (Ground-Fault Circuit Interrupter)A device that monitors current imbalance between conductors and trips the circuit within milliseconds if a ground fault is detected, protecting workers from electrocution.

Personal Fall Arrest System (PFAS)A system — typically a full-body harness, lanyard, and anchor point — that stops a fall and limits the force on the worker's body.

In class: Work through all OSHA 10 Construction modules delivered by an authorized OSHA outreach trainer, including electrical hazards (1926 Subpart K), fall protection, and struck-by hazards; answer all module quizzes before the final card exam. · In small groups, examine photographs of real electrical job-site conditions, categorize each hazard using the hierarchy of controls (elimination → PPE), and present findings to the class with justification. · Complete a written job hazard analysis (JHA) for a fictitious residential rough-in scenario, listing tools, tasks, potential hazards, and selected controls in the standard JHA table format.
Materials: OSHA 10 Construction student materials (authorized trainer packet), OSHA 29 CFR 1926 Subpart K reference, job-site hazard photographs, blank JHA forms, class-set PPE samples (hard hat Class E, safety glasses ANSI Z87.1, Class 00 rubber gloves, leather protectors, voltage-rated footwear)
Check: Learners must pass the OSHA 10 Construction final assessment at the level required by the authorized trainer program to receive the OSHA 10 card; additionally, the JHA must correctly identify at least four hazards and assign an appropriate control for each — both items must be satisfactory to advance.

Practice check8

Answer each question, then check it. Nothing is recorded; this is your own practice.