Common Work Results for Electrical AHA (Activity Hazard Analysis / Job Hazard Analysis)
Updated 2026-06-23
A Common Work Results for Electrical AHA (Activity Hazard Analysis / Job Hazard Analysis) plans the shared building blocks of electrical work — the conductors and cables, raceways and boxes, wiring devices, grounding and bonding, supports, and identification used across every electrical system. It's the common foundation the whole division is built from, and it carries both the base electrical hazards and the grounding that makes everything else safe.
Why common work results for electrical needs its own AHA
Every electrical system, whatever its purpose, is built from a common set of elements — the conductors that carry the power, the raceways and boxes that route and house them, the wiring devices, the supports that hold it all, and the grounding and bonding that make the system safe. So this common work is the foundation of all electrical installation, and it carries two things worth their own plan: the base electrical install hazards (done de-energized, with the trade's shock discipline), and the grounding and bonding — which isn't just another component but the safety foundation of the entire electrical system, the path that clears faults and keeps equipment from becoming energized. Plus the common work is largely raceway and cable installed overhead, so it carries the at-height and cable-pulling hazards throughout.
Three concerns carry the plan: the common electrical elements, the foundational grounding and de-energized install, and the at-height and cable-pulling work.
Breaking common work results for electrical into steps
- Confirm the common electrical elements and routing from the design
- Install the raceways, boxes, and supports (largely overhead)
- Pull the conductors and cables through the raceway systems
- Install the wiring devices and make the terminations (de-energized)
- Install the grounding and bonding system
- Identify, test, and prepare for energizing
The hazards step by step
The foundational grounding and bonding
Grounding and bonding is the safety foundation of the whole electrical system, so it stands out among the common elements. Grounding provides the path for fault current to return and clear (tripping the protection), and bonding ties the metal parts together so they can't become energized at different potentials — together, they're what make a fault safe rather than deadly, keeping equipment enclosures from becoming live and enabling the overcurrent protection to operate. So a system with inadequate or missing grounding and bonding is dangerous in a way that isn't visible until a fault occurs — then enclosures can become energized and faults may not clear. So the grounding and bonding is installed completely and correctly per code, because it's the safety net the entire system relies on. It's a common element, but a foundational, safety-critical one.
The de-energized install and terminations
The common work — installing raceways, pulling conductors, making terminations, installing devices — is done de-energized, so the shock hazard during install is controlled by the electrical trade's base discipline: the systems being worked on aren't energized, and where work is near existing energized systems, those are de-energized and locked out or the appropriate precautions taken. Terminations are made correctly (a loose or wrong termination is a future fault and hot spot), to code. So the install carries the electrical trade's de-energized discipline, and the quality of the common terminations matters for the system's future safety.
The at-height and cable-pulling work
The common work is largely raceways (conduit, cable tray) and cable installed overhead throughout the building, so it carries the at-height hazards (working from ladders, scaffolds, and lifts in the congested overhead) and the physical work of cable pulling (pulling heavy conductors through raceway — strain, pinch points, and the forces of pulling). And it involves heavy material handling (conduit, cable reels, equipment). So the common electrical install is physically demanding at height, with fall protection, safe cable-pulling practices, and material-handling care throughout.
The identification, code, and electrical fundamentals
Identification and labeling, the National Electrical Code (NFPA 70), and the general electrical fundamentals — the de-energized-work discipline and qualified-person requirement — apply across the common work.
A simple Common Work Results for Electrical AHA structure
| Step | Hazard | Control | Standard |
|---|---|---|---|
| Install grounding/bonding | Unsafe faults; live enclosures | Complete, correct grounding/bonding per code | NFPA 70 |
| Install de-energized | Shock (from existing energized) | De-energize/lock out existing; base discipline | OSHA 1910.147 |
| Make terminations | Future faults/hot spots | Correct terminations to code | NFPA 70 |
| Install raceway at height | Falls; struck-by | Fall protection; congested-overhead care | OSHA 1926.501 |
| Pull cable; handle material | Strain; pinch | Safe cable-pulling; material handling | general |
Where the common elements and grounding define the work
The common work is the shared foundation of all electrical systems, so its hazards are the base electrical install hazards (de-energized discipline, quality terminations) and the physical at-height and cable-pulling work — plus the standout element, grounding and bonding, which is the safety foundation the whole system depends on. So the plan treats grounding as the safety-critical common element it is, holds the de-energized discipline and termination quality, and manages the sustained at-height and material-handling demands. Everything electrical is built on these common results.
From the field: what actually goes wrong
The common-work issues span the physical and the foundational. Physically: falls from the overhead raceway install, strains and pinch injuries from cable pulling and material handling, and shock where existing energized systems weren't de-energized. Foundationally: inadequate or incorrect grounding and bonding — invisible until a fault makes an enclosure live or a fault fails to clear — and poor terminations that become faults and hot spots later. The lessons: install the grounding and bonding completely and correctly, as the safety foundation it is; hold the de-energized discipline and make quality terminations; and manage the at-height, cable-pulling, and material-handling hazards of the common install.
The bottom line
A Common Work Results for Electrical AHA covers the shared building blocks of all electrical work — conductors, raceways, boxes, devices, supports, and, foundationally, grounding and bonding. Install the grounding and bonding completely and correctly as the system's safety foundation, hold the de-energized discipline and quality terminations, and manage the at-height and cable-pulling hazards of the overhead install. The electrical head frames the division; the specific systems build on these common results.
Frequently asked questions
What does "common work results for electrical" cover?
The shared building blocks used across all electrical systems — the elements common to every electrical installation regardless of its specific purpose. These include the conductors and cables (which carry the power), the raceways (conduit, cable tray) and boxes that route and house the wiring, the wiring devices, the hangers and supports that hold the system, the identification and labeling, and the grounding and bonding that make the system safe. So rather than a specific system, it's the foundational common elements every electrical system is built from. This AHA covers installing them — the common electrical install work — which is why it carries the base electrical hazards and, notably, the grounding and bonding that's the safety foundation of the whole electrical installation. The specific electrical systems build on these common results.
Why is grounding and bonding singled out as foundational?
Because it's what makes the entire electrical system safe — it's not just another component, it's the safety net the whole system depends on. Grounding provides a low-resistance path for fault current to return to the source and clear (causing the overcurrent protection to trip), and bonding ties all the metal parts (enclosures, raceways, equipment) together so they stay at the same potential and can't become energized relative to each other or to ground. Together, they ensure that if a fault occurs, the enclosures don't become live (protecting anyone touching them) and the fault clears quickly. So a system with inadequate or missing grounding and bonding is dangerous — but invisibly so, until a fault happens and an enclosure becomes energized or a fault fails to clear. So grounding and bonding is installed completely and correctly per code, because the safety of the whole system rests on it. That's why it stands out among the common elements.
Why is the common work physically demanding?
Because it's largely raceway and cable installed overhead throughout the building. Installing conduit, cable tray, and the conductors that run in them means working at height — from ladders, scaffolds, and lifts — across the whole building, in the congested overhead shared with other trades, so there's constant fall exposure and struck-by risk. Cable pulling is physically hard: pulling heavy conductors through raceway involves significant force, strain, and pinch-point hazards. And the material is heavy — conduit, cable reels, and electrical equipment to handle and move. So the common electrical install is sustained, physically demanding work at height, which is why fall protection, safe cable-pulling practices, and material-handling care run throughout it — alongside the electrical hazards. The physical demands are a real part of the common work, on top of the electrical discipline.
How does this relate to the electrical division head?
The electrical head (the Electrical AHA) frames the whole division and its defining hazards — shock, arc-flash, and the de-energized-work discipline. This common-work-results AHA covers the shared foundational elements that all electrical systems are built from — the conductors, raceways, boxes, devices, supports, and grounding. So the head establishes the electrical hazards and discipline, and this doc applies them to the common building-block work, adding the foundational grounding-and-bonding concern and the physical at-height and cable-pulling demands of installing the common elements. The specific electrical systems (distribution equipment, lighting, and so on) then build on these common results. So this is the shared-foundation layer of the electrical division — the common work that underlies everything, carrying the division's hazards into the foundational install.
Related AHAs and JHAs
- Electrical AHA — the electrical division fundamentals
- Maintenance Testing of Electrical Systems AHA — the electrical testing
- Electrical Performance Requirements AHA — the electrical performance basis
- Grounding System Installation JHA — the grounding-install fundamentals
Written by Mustafa Tok, CSP, ASP, CHST — OSHA Authorized Outreach Trainer with 14+ years of international construction safety experience across federal, heavy civil, and industrial projects.