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Write a risk assessment for Portable appliance testinf at an inverter production facility with labs and offices

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Portable Appliance Testing (PAT) in Inverter Production Facility, Laboratories, and Office Areas ================================================================================================

Assessment Date: \[DATE]

Assessor: \[ASSESSOR NAME]

Department/Area: \[DEPARTMENT/AREA]

Review Date: \[REVIEW DATE]

1\. Assessment Scope

This risk assessment covers portable appliance testing activities carried out on portable and plug-connected electrical equipment used in inverter production areas, laboratories, and office environments. It includes pre-use inspection, formal PAT inspection and testing, isolation of equipment, application and removal of lockout/tagout controls, use of test instruments, management of damaged or defective equipment, extension leads and multi-outlet accessories, residual current device (RCD/GFCI) protection, recordkeeping, and return-to-service checks. The assessment applies to employees, maintenance personnel, electrical competent persons, contractors, and any other persons who may be affected by PAT activities or by the temporary removal of equipment from service. It excludes live electrical installation work, fixed wiring inspection and testing, and specialist high-voltage work, except where those activities create interface risks during PAT operations. It also excludes tasks that require a separate electrical permit or live-work authorization unless specifically referenced as a control measure for temporary testing or troubleshooting.

2\. Risk Assessment Methodology

A task-based risk assessment methodology has been used, combining hazard identification, exposure analysis, and a 5x5 risk matrix to determine initial and residual risk ratings. The assessment follows the hierarchy of controls, prioritizing elimination and substitution where practicable, then engineering controls, administrative controls, and personal protective equipment. Risks were evaluated for normal PAT activities, abnormal conditions such as damaged equipment or failed tests, and special circumstances such as shift changes, lone work, and work in laboratories where exposure to energized equipment may be higher. Residual risk assumes that all listed controls are implemented, maintained, and verified by competent persons.

3\. Risk Matrix Reference

The following matrix is used to evaluate risk levels based on likelihood and severity:

		Likelihood

4\. Hazard Identification and Risk Evaluation

1\. Contact with live electrical parts during PAT setup, probing, or verification when equipment is not fully isolated or when covers, plugs, or enclosures are damaged.

Potential Consequences: Electric shock, burns, arc flash injury, cardiac arrest, secondary injury from sudden movement, and potential fatality. In laboratory and production settings, inadvertent energization may also damage sensitive equipment or interrupt critical processes. [1] [8]

Affected Persons: PAT technicians, maintenance staff, electricians, nearby workers, and any person in the immediate work area.

Initial Risk Assessment

Likelihood	Severity	Risk Rating
Possible	Major	High

Control Measures

Eliminate the need to test energized equipment wherever possible by removing the appliance from service and isolating it before testing.
Use lockout/tagout or equivalent electrical isolation controls before inspection and testing, including verification of de-energization with an adequately rated test instrument.
Restrict access to the test area with barriers, signage, and controlled work boundaries so unqualified persons cannot approach exposed parts.
Use only competent persons who are trained in electrical hazards, PAT procedures, and verification of isolation.
Wear task-appropriate electrical PPE when there is any possibility of exposure to energized parts, including eye protection and insulating gloves where required.

Residual Risk Assessment

Likelihood	Severity	Risk Rating
Rare	Major	Medium

2\. Unexpected start-up or re-energization of equipment during testing, repair, or return-to-service activities.

Potential Consequences: Shock, entanglement, pinch injuries, damage to equipment, and injury to anyone touching the appliance or connected accessories at the time of re-energization. [2] [7] [4]

Affected Persons: PAT technicians, maintenance personnel, operators, and nearby employees.

Initial Risk Assessment

Likelihood	Severity	Risk Rating
Possible	Major	High

Control Measures

Apply a formal lockout/tagout procedure for plug-connected equipment, including unplugging, locking or tagging the plug where required, and controlling the isolation point.
Ensure each person exposed to the hazard applies their own personal lock or tag where group work is involved.
Verify isolation before work begins and again before return to service, using a deliberate test or start attempt only when safe and authorized.
Use a documented sequence for temporary re-energization for testing or positioning, with the area cleared and affected persons notified before energization.
Remove lockout/tagout devices only by the person who applied them, unless a documented exception procedure is in place and supervised.

Residual Risk Assessment

Likelihood	Severity	Risk Rating
Rare	Major	Medium

3\. Use of damaged portable appliances, cords, plugs, or extension leads that have exposed conductors, overheating, loose connections, or degraded insulation.

Potential Consequences: Electric shock, fire, equipment failure, nuisance tripping, and injury from contact with damaged live parts or from smoke and heat. [13] [5]

Affected Persons: All employees using the equipment, PAT technicians, maintenance staff, and persons in adjacent work areas.

Initial Risk Assessment

Likelihood	Severity	Risk Rating
Likely	Major	High

Control Measures

Remove damaged equipment from service immediately and label it clearly as defective or do-not-use.
Repair or replace damaged cords, plugs, sockets, and appliance components using approved parts and competent personnel only.
Introduce routine visual inspection before use and formal PAT intervals based on equipment type, environment, and duty cycle.
Use robust cable management and strain relief to reduce mechanical damage to cords and plugs.
Maintain a quarantine area for defective equipment so it cannot be returned to service prematurely.

Residual Risk Assessment

Likelihood	Severity	Risk Rating
Unlikely	Major	Medium

4\. Overloading or misuse of extension leads, multi-outlet adaptors, and temporary power distribution in offices, laboratories, and production support areas.

Potential Consequences: Overheating, fire, tripping of protective devices, damaged insulation, and shock risk from overloaded or daisy-chained accessories. [13] [11]

Affected Persons: Office staff, laboratory users, production support staff, cleaners, and PAT personnel.

Initial Risk Assessment

Likelihood	Severity	Risk Rating
Possible	Major	High

Control Measures

Eliminate unnecessary extension lead use by providing sufficient fixed outlets and planned power distribution.
Prohibit daisy-chaining of extension leads and multi-outlet adaptors unless specifically engineered and authorized for the task.
Select extension leads and accessories with suitable current rating, condition, and protection for the environment of use.
Inspect leads for heat damage, cuts, crushed sections, loose sockets, and damaged plugs before use and during PAT.
Use RCD/GFCI protection where required or where socket protection cannot be confirmed, especially in laboratories or damp areas.

Residual Risk Assessment

Likelihood	Severity	Risk Rating
Unlikely	Major	Medium

5\. Inadequate competence of persons performing PAT, including incorrect test selection, incorrect pass/fail decisions, or failure to recognize unsafe conditions.

Potential Consequences: False assurance that unsafe equipment is safe, missed defects, exposure to electrical hazards, and non-compliance with workplace electrical safety requirements. [12] [14]

Affected Persons: PAT technicians, equipment users, supervisors, and anyone relying on test records.

Initial Risk Assessment

Likelihood	Severity	Risk Rating
Possible	Major	High

Control Measures

Assign PAT only to competent persons who understand electrical hazards, test methods, equipment limitations, and safe isolation procedures.
Provide task-specific training and authorization records for each tester, including refresher training and supervision where needed.
Use standardized PAT procedures, calibrated instruments, and clear acceptance criteria for each equipment class.
Require peer review or supervisory verification for unusual equipment, failed tests, or borderline results.
Maintain competency records and restrict advanced testing or fault-finding to qualified electrical personnel.

Residual Risk Assessment

Likelihood	Severity	Risk Rating
Unlikely	Major	Medium

6\. Incorrect use of PAT test instruments, including damaged leads, incorrect settings, poor calibration, or failure to verify instrument operation before and after testing.

Potential Consequences: Electric shock to the tester, inaccurate results, missed defects, equipment damage, and unsafe return to service. [1] [8]

Affected Persons: PAT technicians and nearby workers who may use the equipment after testing.

Initial Risk Assessment

Likelihood	Severity	Risk Rating
Possible	Moderate	Medium

Control Measures

Use only approved, suitably rated, and calibrated test instruments for the voltage and test category involved.
Inspect test leads, probes, and accessories before use and remove defective instruments from service immediately.
Verify the test instrument on a known source before and after testing to confirm proper operation.
Follow manufacturer instructions and site procedures for each test sequence, including insulation, earth continuity, polarity, and functional checks as applicable.
Store instruments securely and protect them from impact, contamination, and moisture.

Residual Risk Assessment

Likelihood	Severity	Risk Rating
Rare	Moderate	Low

7\. Residual current device protection failure or absence of RCD/GFCI protection on portable equipment circuits, especially in laboratories, wet areas, or temporary power arrangements.

Potential Consequences: Increased likelihood of fatal shock, delayed fault clearance, fire, and injury from contact with faulty equipment. [13] [11]

Affected Persons: All users of portable equipment, PAT technicians, cleaners, contractors, and visitors in affected areas.

Initial Risk Assessment

Likelihood	Severity	Risk Rating
Possible	Catastrophic	Extreme

Control Measures

Provide RCD/GFCI protection for portable equipment circuits where required by site rules, equipment type, or environmental conditions.
Test RCD/GFCI devices at defined intervals and after any disturbance, repair, or relocation.
Do not rely on RCD/GFCI protection as the sole control; combine it with inspection, PAT, and safe isolation.
Remove from service any circuit or accessory with failed protection until repaired and retested.
Use portable in-line RCD protection where socket protection cannot be confirmed and the task requires temporary supply.

Residual Risk Assessment

Likelihood	Severity	Risk Rating
Unlikely	Major	Medium

8\. Poor housekeeping, trailing leads, and clutter around PAT workstations causing slips, trips, falls, or contact with equipment under test.

Potential Consequences: Sprains, fractures, dropped test instruments, damaged equipment, and accidental contact with energized parts. [3]

Affected Persons: PAT technicians, nearby workers, visitors, and cleaners.

Initial Risk Assessment

Likelihood	Severity	Risk Rating
Likely	Moderate	High

Control Measures

Establish a clean, designated PAT area with adequate space, lighting, and cable routing.
Keep walkways clear and secure trailing leads to prevent trip hazards.
Use barriers or cones to separate the test area from general traffic.
Plan the sequence of work so equipment, tools, and records are arranged before testing begins.
Maintain good housekeeping throughout the task and remove waste or defective items promptly.

Residual Risk Assessment

Likelihood	Severity	Risk Rating
Unlikely	Minor	Low

9\. Exposure of employees and others to electrical hazards during maintenance, troubleshooting, or temporary energization for testing and positioning.

Potential Consequences: Shock, arc flash, burns, and injury if persons enter the danger area or if live testing is performed without adequate controls. [9] [3]

Affected Persons: Qualified electrical personnel, PAT technicians, operators, and unqualified persons nearby.

Initial Risk Assessment

Likelihood	Severity	Risk Rating
Possible	Major	High

Control Measures

Use a written safe system of work that defines when live testing is permitted and when de-energization is mandatory.
Apply approach boundaries, barriers, and supervision to keep unqualified persons away from exposed live parts.
Use live-work permits only where testing or troubleshooting cannot reasonably be done de-energized.
Provide arc flash and shock PPE appropriate to the task when energized work is unavoidable.
Coordinate PAT with production and maintenance schedules so exposure time is minimized and affected persons are informed.

Residual Risk Assessment

Likelihood	Severity	Risk Rating
Rare	Major	Medium

5\. General Control Measures

Implement a written PAT procedure covering inspection, testing, isolation, pass/fail criteria, labeling, quarantine, and return-to-service requirements.

The procedure should be specific to the facility's inverter production, laboratory, and office equipment types and should define who may test, what may be tested, and how failed items are controlled. [8] [15]

Maintain a competent-person authorization system for PAT and electrical isolation tasks.

Only trained and authorized personnel should perform PAT, apply or remove lockout/tagout devices, and make decisions on equipment suitability for service. [12]

Use calibrated, suitable test equipment and maintain instrument integrity.

Test instruments should be checked before use, maintained according to manufacturer instructions, and removed from service if damaged or out of calibration. [8] [5]

Provide clear labeling and segregation for defective or failed equipment.

Use a quarantine process so damaged appliances, extension leads, and accessories cannot be inadvertently reused before repair and retest. [13]

Ensure effective communication and coordination with production, laboratory users, and office occupants.

Notify affected persons before testing begins, especially where equipment will be removed from service, temporarily energized, or returned to service after testing. [7]

6\. Emergency Preparedness

If electric shock occurs, stop work immediately, isolate the power source without touching the casualty if it is unsafe to do so, summon emergency assistance, and begin first aid/CPR only when the scene is safe. Ensure responders are trained to recognize electrical hazards and do not re-energize equipment until the cause is identified and controlled. [13]
If smoke, overheating, or fire is detected in a portable appliance, extension lead, or test instrument, disconnect power if safe, activate the fire alarm, use the correct extinguisher only if trained and the fire is small and contained, and evacuate if conditions worsen. Preserve the equipment for investigation after the incident. [13]
If a PAT instrument or test lead fails during use, stop testing, isolate the equipment, tag the instrument out of service, and report the defect to the responsible supervisor or maintenance function before any further use. [5]
If unexpected energization or re-energization occurs during testing or return-to-service, withdraw to a safe position, warn others in the area, and re-establish isolation before continuing. Do not remove another person's lock or tag unless the site exception procedure is formally invoked and authorized. [7]
If an electrical incident occurs in a laboratory or production area, secure the area, prevent access by unqualified persons, and preserve the scene for investigation while ensuring any immediate life-saving actions are taken. [9]

7\. Training Requirements

PAT Competency and Authorization Training: All persons performing PAT must be trained and authorized to inspect equipment, select the correct test sequence, interpret results, recognize defects, and remove unsafe items from service. Training should include practical assessment and periodic refresher training. [12]
- Equipment classes and typical defects
- Pass/fail criteria and labeling
- Quarantine and escalation of failed items
Electrical Hazard Awareness: Workers involved in PAT or who may be affected by it must understand shock hazards, arc flash hazards, stored energy, and the importance of de-energization before testing wherever practicable. [14]
- Recognizing damaged cords and plugs
- Understanding energized versus de-energized states
- Safe behavior around test areas
Lockout/Tagout and Isolation Procedures: Personnel who isolate equipment for PAT must be trained in the facility's lockout/tagout procedure, including personal protection principles, verification of isolation, and controlled return to service. [10]
- Applying personal locks or tags
- Verifying de-energization with a test instrument
- Removal of locks/tags by the person who applied them
Test Instrument Use and Calibration Awareness: PAT personnel must be trained to use approved test instruments correctly, verify instrument operation before and after testing, and recognize when an instrument is damaged, out of calibration, or unsuitable for the task. [8]
- Lead inspection
- Instrument self-checks
- Recording calibration status
Emergency Response for Electrical Incidents: Employees who may be present during PAT activities should receive instruction on emergency actions for shock, fire, smoke, and equipment failure so they can respond quickly and safely. [13]
- Emergency isolation
- Alarm and evacuation
- First aid and incident reporting

8\. Monitoring and Review

Review Frequency: Annually and after any electrical incident, near miss, significant equipment change, change in PAT method, or change in applicable legal or site requirements.

Monitoring Type	Frequency	Responsible Party	Description
Regular Inspection	Before each use and during each PAT session	PAT technician	Inspect appliances, extension leads, plugs, sockets, test leads, and the work area for visible damage, overheating, contamination, missing covers, and trip hazards before testing begins. [15]
Calibration and Function Check	According to manufacturer instructions and at defined site intervals, with a pre-use check each day of use	Electrical maintenance or calibration coordinator	Verify that PAT instruments remain within calibration and that test leads and accessories operate correctly before and after testing. [8]
Supervisor Review	Monthly or after any failed test trend	Area supervisor or electrical safety lead	Review PAT records, failed items, repeat defects, and overdue retests to identify recurring issues and confirm that defective equipment is quarantined and repaired appropriately. [5]
Compliance Audit	Annually and after significant incidents or process changes	HSE manager or competent electrical auditor	Audit the PAT program, lockout/tagout compliance, competency records, RCD/GFCI testing, and maintenance records to confirm the system remains effective and aligned with workplace electrical safety requirements. [6]
Corrective Action Tracking	Continuous, with formal review at least quarterly	Maintenance manager and HSE representative	Track defects, overdue actions, instrument failures, and training gaps to closure, ensuring that corrective actions are assigned, completed, and verified. [5]

9\. Special Circumstances

Night work or reduced staffing increases the risk of delayed emergency response and reduced supervision; additional controls such as enhanced lighting, communication checks, and supervision should be applied.
Lone work should be avoided for PAT involving isolation, testing of damaged equipment, or any task with exposure to energized parts; if unavoidable, a check-in system and emergency escalation procedure are required.
Wet, damp, or laboratory environments increase shock risk and may require additional RCD/GFCI protection, dry work positioning, and stricter exclusion of damaged equipment.
Shift changes and multi-shift operations require continuity of lockout/tagout and clear handover so equipment is not re-energized before all work is complete.
Temporary production pressures or urgent troubleshooting must not override safe isolation, competent-person requirements, or the decision to remove equipment from service when defects are found.

Approval and Sign-off

This risk assessment has been reviewed and approved by:

Assessor: _________________________ Date: __________

Manager/Supervisor: _________________________ Date: __________

Safety Representative: _________________________ Date: __________

This risk assessment must be reviewed annually and after any electrical incident, near miss, significant equipment change, change in pat method, or change in applicable legal or site requirements. or when significant changes occur.

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Sources used for this answer

[1] Personal Protective Equipment Hazard Assessment

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# Table of contents What is a PPE hazard assessment?.. 2 Why should you do a PPE hazard assessment? .2 What are Oregon OSHA's requirements for PPE hazard assessments?........3 Oregon OSHA's hazard assessment rules .3 How to do a PPE hazard assessment..... Do a baseline survey to identify workplace hazards... Evaluate your employees' exposures to each hazard identified in the baseline survey.... Document your hazard assessment ..5 Do regular workplace inspections .6

[2] Oregon OSHA Program Directive | Control of Hazardous Energy – Enforcement Policy and Inspection Procedures (Lockout/Tagout)

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# CHAPTER 4 -- GROUP LOCKOUT/TAGOUT (cont.) NOTE: Paragraph 1910.147 (f)(3)(ii)(D) requires each employee in a group to affix his personal LOTO device as part of the group LOTO. Verbal accountability methods do not afford protection equivalent to that provided by the implementation of a personal LOTO device. The Occupational Safety and Health Commission (OSHRC) affirmed a citation on this matter by stating that this requirement clearly and explicitly mandates the use of a personal lockout or tagout device in a tagging situation because the core concept of LOTO is personal protection. See Exelon Generating Corp., LaSalle County Station, OSHRC (Docket No. 00-1198, 2005). 1. The guidance contained in this chapter illustrates various types of compliant group energy control procedures. For example, a single lock on each energy isolating device, together with the use of a lockbox for retention of the locks' keys, would permit authorized employees personal control of the hazardous energy source(s), if each authorized employee personally locked the lock-box. See the Type B group lockout illustration for further details on this technique. [1910.147(f)(3)(i).] 2. Locks shall be affixed in a manner that will hold the energy isolating device in a safe (off) position. [1910.147(d)(4)(ii).] 3. Tagout devices, where used, shall be affixed at the same location as would a lock if such fittings are provided, or shall be affixed in a manner that will clearly indicate that movement of the isolating device is prohibited. [1910.147(d)(4)(iii).] F. Stored Energy. Following the application of locks or tags, all potentially hazardous stored energy or residual energy shall be relieved, disconnected, restrained, and otherwise rendered safe. [1910.147(d)(5)(i).] - If there is a possibility of re-accumulation of stored energy, verification of energy isolation must be continued until the servicing or maintenance work is completed or the hazard no longer exists. [1910.147(d)(5)(ii).] …

[3] Personal Protective Equipment Hazard Assessment

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# What is a PPE hazard assessment? A personal protective equipment (PPE) hazard assessment is an evaluation of your workplace that helps you determine what hazards your employees are exposed to and what PPE they need to protect themselves. A hazard assessment should include: - The jobs (or tasks) your employees do - The hazards your employees are exposed to • Where the hazards are located - The likelihood those hazards could injure your employees - The severity of a potential injury • The types of PPE necessary to protect your employees from those hazards ## Why should you do a PPE hazard assessment? There are three reasons: 1. A hazard assessment will help you find hazards at your workplace. 2. A hazard assessment will help you determine what personal protective equipment your employees need for protection. 3. Oregon OSHA's rules require you do one. 2

[4] Arc Flash

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# Arc Flash (cont.) ## What elements should be considered when doing an arc flash risk assessment? (cont.) Whenever possible, do not work on energized equipment. Always follow lockout/tagout procedures as part of a hazardous energy control program. Other protective measures include: - Making sure conductors and circuit parts are in a safe working condition - Using lower energy equipment or current energy limiting devices - Guarding energized electrical conductors and circuit parts - Using arc flash approach boundaries, including barricades - Increasing the working distance - Using non-contact instruments or procedures, where possible - Using non-sparking tools - Implementing work permits, safe work procedures, and job planning - Posting signs alerting of the hazards - Wearing shock and arc flash personal protective equipment (PPE) ## What would be included in preventive maintenance? Preventive maintenance includes: - Regular inspection for wear and tear of insulation, corrosion, poor connections, overheated electrical conductors, excessive pitting of contacts, or excessive moisture, water, or ice on the equipment. - Regular measurements of critical components. - Routine inspections of circuit breakers and relays (develop a testing schedule based on the manufacturer's instructions or the InterNational Electrical Testing Association (NETA) guidelines). - Follow established maintenance requirements, including a parts replacement schedule. - Keep electrical drawings current. ## What are approach boundaries? Boundaries are used to limit how close workers and others should be to the equipment or circuits, especially when work is being done. Arc Flash CCOHS

[5] Protection From Electric Shock and Arc Flash

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# De-Energizing (cont.) ## Lockout/tagout program (cont.) entirety. ensuring all energy sources are under lockout/tagout and to account for all people on the job. There should be a written plan addressing the specific details and naming the person in charge. Removal of lockout/tagout devices. Lockout and tagout devices should be removed only by the person installing them. If work is not completed when the shift changes, workers arriving on shift should apply their locks before departing workers remove their locks. Return to service. Once work is completed and lockout/tagout devices removed, tests and visual inspection must confirm that all tools, mechanical restraints, electric jumpers, shorts, and grounds have been removed. Only then is it safe to re- energize and return to service. Employees responsible for operating the equipment and needed to safely re-energize it should be out of the danger zone before equipment is re-energized. Temporary release. If the job requiring lockout/tagout is interrupted for testing or positioning equipment, follow the same steps as in return to service (above). ## Working On or Near Live Circuits Working on live circuits means actually touching energized parts. Working near live circuits means working close enough to energized parts to pose a risk even though you make be working on de-energized parts. Common tasks where you need to work on or near live circuits include: - Taking voltage measurements - Opening and closing disconnects and breakers - Racking breakers on and off the bus - Removing panels and dead fronts - Opening electric equipment doors for inspection. There should be standard written procedures and training for these common tasks. For instance, when opening and closing disconnects, use the left-hand rule when possible (stand to the right side of the equipment and operate the disconnect with your left hand). For other situations where you might need to work on or near live circuits, your employer should in…

[6] Oregon OSHA Program Directive | Control of Hazardous Energy – Enforcement Policy and Inspection Procedures (Lockout/Tagout)

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# CHAPTER 3 -- INSPECTION GUIDANCE (cont.) The answer to this question depends on the type(s) of hazardous energy that must be isolated, whether LOTO provides isolation (offering complete employee protection), and whether the 1910.146 requires the use of LOTO. Pursuant to the 1910.146 standard (including its final rule preamble), electromechanical types of hazards, associated with a PRCS, must be isolated in accordance with the LOTO standard (or guarded in accordance with Machine guarding, Subdivision O, requirements). Failure to follow the procedural and training requirements of the LOTO standard should be cited as 1910.147 violations related to the isolation of electro-mechanical hazards. The PRCS standard does not, however, allow LOTO for flowable material isolation. This is because compliance with 1910.147 does not, in all cases, adequately isolate hazards created by materials such as steam, flammable gases, flammable and combustible liquids. In a permit-required confined space, hazards associated with flowable materials will be considered isolated only by the use of the following techniques: blanking or blinding; misaligning or removing sections of lines, pipes or duct; and use of a double block and bleed system. A double block and bleed isolation system, for example, usually utilizes the closure of two valves, the opening of a bleeder valve, and the application of LOTO devices (offering complete employee protection); whereas an employer can comply with 1910.147(d)(3) and 1910.147(d)(4) of the LOTO standard by simply closing and LOTO of a single valve (which could create atmospheric hazards due to the leakage of a single valve). 3. Relationship between the Control of hazardous energy (LOTO) standard and 1910, Subdivision S. Employee exposure to electrical hazards (e.g., shock, arc flash burn, thermal burn, blast) from work on, near, or with conductors or equipment in electric utilization installations, which are covered by Subdivision S, Electrical, is exclu…

[7] Cal/OSHA Guide to Electrical Safety

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# Maintaining clearances around electric panels (cont.) ## ➤ Grounding (cont.) In addition, portable multiple outlet GFCI's are available for use on construction sites and industrial sites where heavy duty, multiple outlet GFCI's are required. 0000 Heavy Duty GFCI ## Eliminating access to exposed energized parts Covers on openings and approved electrical boxes restrict access to the exposed energized parts inside the openings and boxes. All openings in boxes, enclosures or fittings shall be effectively guarded or closed as per 2340.23. Missing covers and free access to exposed energized electrical parts are very common safety hazards in works involving electricity. However, these are easy to eliminate. Replacing missing covers in electrical panels and boxes, and covering the openings that have unrestricted access to exposed energized electrical parts save workers from the danger of shock and electrocution. # Using proper personal protective equipment (PPE) Personal Protective Equipment (PPE) provides protection to workers from hazards. Depending on the job task to be performed, PPE for electrical workers generally includes safety glasses, flame-resistant (FR) face shields, hard hats, safety shoes, insulating (rubber) gloves with leather protectors, insulating sleeves, and FR clothing. Additional PPE, such as fall protection equipment, respirators, chemical-resistant or cut-resistant gloves, and chaps, may be needed, depending on the potential hazard in the job. Using proper lockout/tagout procedures ANGER DO NOT OPERATE 7

[8] Oregon OSHA Program Directive | Control of Hazardous Energy – Enforcement Policy and Inspection Procedures (Lockout/Tagout)

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# CHAPTER 3 -- INSPECTION GUIDANCE (cont.) With regard to LOTO device removal (Step C), it cannot be over-emphasized that employees who work on de-energized machinery may be seriously injured or killed if LOTO devices are removed and the machinery is re-energized without their authorization. Lockout or tagout is personal protection. For this reason, it is extremely important that all employees respect lockout and tagout devices and that the LOTO devices be removed only by the person(s) who applied them. In the rare situation in which the employee who placed the LOTO device is not available to remove that LOTO device, the device may be removed under the direction of the employer, provided that the employer's energy control program incorporates specific procedures and training for that purpose. NOTE: Pursuant to the paragraph (e) exception, these procedures must incorporate, at a minimum, measures to accomplish the following: • Verification that the authorized employee (who applied the device) is not at the facility; • Making all reasonable efforts to contact that employee to inform him or her that the LOTO devices(s) has been removed; and - Ensuring that this employee knows of the removal of the device before he resumes work at the facility. Removal of a personal LOTO device by another person may not be based on convenience and may not be done simply because the employee is not available at the LOTO location, but is still at the workplace. The steps above are necessary to ensure that the employee who is protected by the device is not exposed to energy hazards either at the time of its removal or after its removal. - XII. Machine or Equipment Testing or Repositioning. The LOTO standard requires an employer to develop and utilize a procedure, in conjunction with the energy control procedure that establishes a logical sequence of actions to be taken in situations where energy isolating devices are locked and/or tagged out and there is a need for machine componen…

[9] Oregon OSHA Program Directive | Control of Hazardous Energy – Enforcement Policy and Inspection Procedures (Lockout/Tagout)

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# CHAPTER 3 -- INSPECTION GUIDANCE (cont.) NOTE: Section 1910.147(a)(1)(i) addresses the potential energy hazards associated with unexpected energization or start up of machines or equipment, or the release of stored energy. The LOTO standard also applies when servicing and maintenance activities take place during normal production operations, if either of the circumstances in 1910.147(a)(2)(ii)(A) or (B) apply, and if the minor servicing exception is inapplicable. The predominant form of energy associated with normal production operation of a machine or piece of equipment is sometimes referred to as kinetic energy. The purpose of the Control of hazardous energy (lockout/tagout) standard, according to 1910.147(a)(3), is to: require employers to establish a program and utilize procedures for affixing appropriate lockout or tagout devices to energy isolating devices and to otherwise disable machines or pieces of equipment to prevent unexpected energization, start-up or release of stored energy in order to prevent injury to employees. The standard protects employees by requiring the de-energization of machines or equipment and locking or tagging them out before the servicing or maintenance work is performed. Pursuant to the standard, the hazardous energy sources are effectively controlled through an energy control (LOTO) program, which includes the effective disabling and isolation of machines or equipment to prevent the release of hazardous energy during servicing and/or maintenance activities. The LOTO provisions give each authorized employee personal control over the hazardous energy sources to which they otherwise would be exposed. Servicing and maintenance can begin only after each authorized employee has placed her own LOTO device on the energy isolation device(s) or equivalent energy control mechanism. It is only when each authorized employee removes her personal LOTO device that the machine can be re-energized and started-up. It is the control that each em…

[10] Arc Flash

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# Arc Flash (cont.) ## What are approach boundaries? (cont.) Important to arc flash boundaries is the role of qualified persons. A qualified person is someone who has been trained in and has knowledge about the construction and operation of the equipment or work methods. They must be familiar with appropriate techniques, policies and procedures, work permits, PPE, insulating and shielding materials, insulated tools, test equipment, etc. For example, unqualified workers should remain a distance away from the exposed energized conductors or circuit parts (including any equipment or objects they may handle). They should not cross into the arc flash boundary unless they are wearing appropriate PPE and are supervised by a qualified person. At no time should an unqualified person enter the restricted approach boundary. Qualified person may enter the restricted space provided any necessary work permits, PPE, tools, equipment, and measures necessary to reduce the likelihood of contact are taken. ## How is arc flash personal protective equipment (PPE) chosen? Workers must know how to select, use, and care for the necessary PPE, and understand the limitations of the PPE. The CSA standard Z462:21 "Workplace Electrical Safety" provides two methods that can be used to determine what type of PPE is required for a specific job: 1. The incident energy analysis 2. The arc flash PPE category While either method can be used, only one method should be used at a time when working on the same piece of equipment (not both). The first method, incident energy analysis, is based on the distance between the worker's face and chest to the source. It uses the value of the estimated energy of the flash to determine the level of protection that must be provided by the PPE. The second method, arc flash PPE category method, uses the arc flash risk assessment of the tasks and equipment condition to determine if arc flash-rated PPE is required. Once determined that arc flash PPE is require…

[11] Electrical Safety - Basic Information

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# What should I do if I think I am too close to overhead power lines? (cont.) ## What are some general safety tips for working with or near electricity? (cont.) - Be aware that unusually warm or hot outlets or cords may be a sign that unsafe wiring conditions exist. Unplug any cords or extension cords from these outlets and do not use them until a qualified electrician has checked the wiring. - Always use ladders made with non-conductive side rails (e.g., fibreglass) when working with or near electricity or power lines. - Place halogen lights away from combustible materials such as cloths or curtains. Halogen lamps can become very hot and may be a fire hazard. - The risk of electric shock is greater in areas that are wet or damp. Install Ground Fault Circuit Interrupters (GFCIs) as they will interrupt the electrical circuit before a current sufficient to cause death or serious injury occurs. - Use a portable in-line Ground Fault Circuit Interrupter (GFCI) if you are not certain that the receptacle you are plugging your extension cord into is GFCI protected. - Make sure that exposed receptacle boxes are made of non-conductive materials. - Know where the panel and circuit breakers are located in case of an emergency. - Label all circuit breakers and fuse boxes clearly. Each switch should be positively identified as to which outlet or appliance it is for. - Do not use outlets or cords that have exposed wiring. - Do not use portable cord-and-plug connected power tools if the guards are removed. - Do not block access to panels and circuit breakers, or fuse boxes. - Do not touch a person or electrical apparatus in the event of an electrical incident. Always disconnect the power source first. - Make sure electrical tools and equipment have a certification marking from an accredited agency accepted by your jurisdiction (e.g., UL, ULC, CSA, ETL). Be careful when purchasing equipment from another country or online, as they may not be approved. - Make sure…

[12] Toolbox Talk: Arc Flash Hazards

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# ARC FLASH HAZARDS (cont.) ## HOW CAN YOU PROTECT YOURSELF FROM THE HAZARDS OF ARC FLASH? (cont.) • De-energizing would create a more significant hazard, or it is necessary for the interests of health and safety that the electrical work is carried out while the equipment is energized (e.g., it may be required for life-saving equipment to remain energized and operating while electrical work is carried out on the equipment). • It is necessary that the electrical equipment to be worked on is energized for the work to be carried out correctly. • It is necessary for testing or troubleshooting. • There is no reasonable alternative means of carrying out the work. ## NOTE: USE APPROPRIATE LOCKOUT, TAGOUT, AND HAZARDOUS ENERGY CONTROL PROCEDURES TO ISOLATE ENERGIZED EQUIPMENT WHEN A CIRCUIT BREAKER OR OTHER DISCONNECT TURNED OFF. THE BEST ARC FLASH PROTECTION IS TO DE-ENERGIZE EQUIPMENT BEFORE WORKING ON IT! IS Second Best Choice for Arc Flash Protection: Use appropriately rated personal protective equipment (PPE). Arc flash personal protective equipment (PPE) is a combination of clothing and safety equipment worn for protection from arc flash and shock hazards by a person performing electrical work. Primarily, arc flash PPE is divided into the following subgroups: • Head, face, neck, and chin protection • Eye protection • Hearing protection • Body protection • Hand and arm protection • Foot and leg protection ## GENERAL ELECTRICAL SAFE WORK PRACTICES All employees working on or near electrical equipment shall follow general safe work practices, including: • Maintain housekeeping procedures in the work area, e.g., prevent slip trips and falls; eliminate fire hazards; control dust; prevent falling hazards; clear clutter. • Plan and analyze each step of a work task to ensure safety. • - Maintain appropriate work boundaries for qualified electrical workers (QEW) and unqualified workers. • Use properly rated and tested test equipment (e.g., multimeter). …

[13] LockOut/Tag Out Program

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# Lockout Tagout Program - (cont.) ## Stored Energy (cont.) • Prior to starting work on machines or equipment that have been locked or tagged out, the authorized employees will verify that isolation or de-energization of the machine or equipment have been accomplished. • After assuring that no Employee will be placed in danger, test all lock and tag outs by following the normal start up procedures (depress start button, etc.). Caution: After Test, place controls in neutral position. ## Extended Lockout - Tagout Should the shift change before the machinery or equipment can be restored to service, the lock and tag out must remain. If the task is reassigned to the next shift, those Employees must lock and tag out before the previous shift may remove their lock and tag. ## SOP: Release from LOCKOUT/TAGOUT Before lockout or tagout devices are removed and the energy restored to the machine or equipment, the following actions will be taken: 1. The work area will be thoroughly inspected to ensure that nonessential items have been removed and that machine or equipment components are operational. 2. The work are will be checked to ensure that all employees have been safely positioned or removed. Before the lockout or tagout devices are removed, the affected employees will be notified that the lockout or tagout devices are being removed. 3. Each lockout or tagout device will be removed from each energy isolating device by the employee who applied the device. ## SOP: LOTO Procedure for Electrical Plug-Type Equipment This procedure covers all Electrical Plug-Type Equipment such as Battery Chargers, some Product Pumps, Office Equipment, Powered Hand Tools, Powered Bench Tools, Lathes, Fans, etc. When working on, repairing, or adjusting the above equipment, the following procedures must be utilized to prevent accidental or sudden startup: 1. Unplug Electrical Equipment from wall socket or in-line socket. 2. Attach "Do Not Operate" Tag and Plug Box & Lock on end of …

[14] Protection From Electric Shock and Arc Flash

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# De-Energizing ## An Electrically Safe Work Condition The most important principle of electric safety is, assume electric circuits are energized unless you make sure they are not. Test every circuit and conductor every time you work on them. The National Fire Protection Association lists six steps to ensure conditions for electrically safe work.** - Identify all sources of power to the equipment. Interrupt - the load current, then open the disconnecting devices for each power source. : - Where possible, visually verify that blades of disconnecting devices are fully open or that drawout-type circuit breakers are fully withdrawn. - Apply lockout/tagout devices in accordance with a formal, written policy. - Test each phase conductor or circuit part with an adequately rated voltage detector to verify that the equipment is de-energized. Check the voltage detector before and after each test to be sure it is working. - Properly ground all possible sources of induced voltage and stored electric energy (such as, capacitors) before touching. If conductors or circuit parts that are being de-energized could contact other exposed conductors or circuit parts, apply ground-connecting devices rated for the available fault current. The process of de-energizing is “live” work and can result in an arc flash due to equipment failure. When de- energizing, follow the procedures described below in "Working On or Near Live Circuits." ## Lockout/tagout program Your employer should establish a written lockout/tagout program and train employees in the program. The program should cover planning for locating and labeling energy sources, identifying employees at risk, how and by whom the equipment is de-energized, releasing of stored energy, verifying that the circuit is de-energized and can't be restarted, voltage testing, grounding requirements, shift changes, coordination with other jobs in progress, a procedure for keeping track of all involved personnel, applying and removing…

[15] Protection From Electric Shock and Arc Flash

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# Protection from Electric Shock and Arc Flash Journeyman Technical Information Paper 2 OBED LEB 10 1808 BAITDING-C REHICYA FEDEBLOW ROBAR About 50 electrical workers are killed in construction every year in the U.S. by electric current and many more are injured. Over half of the deaths are from working on energized ("live") electric circuits without proper protection - often when it was not necessary to work "live." At least one-third of the electrocutions occur at low voltage, under 600 volts. This paper discusses precautions for electricians, but does not cover electric utility work. ## Electric hazards Electricity-related hazards include electric shock and burns, arc-flash burns, arc-blast impacts, and falls. - Electric shock and burns. An electric shock occurs when electric current passes through your body. This can happen when you touch an energized part. If the electric current passes across the chest or head, you can be killed. At high voltages, severe burns can result. - Arc-flash burns. An electric arc flash can occur if a conductive object gets too close to a high-amp current source or by equipment failure (for instance, while opening or closing disconnects). The arc can heat the air to temperatures as high as 35,000° F, and vaporize metal in the equipment. The arc flash can cause severe skin burns by direct heat exposure and by igniting clothing. - Arc-blast impacts. The heating of the air and vaporization of metal creates a pressure wave that can damage hearing and cause memory loss (from concussion) and other injuries. Flying metal parts are also a hazard. - Falls. Electric shocks and arc blasts can cause falls, especially from ladders or unguarded scaffolding. ## Electric Safety Principles Plan every job. Decide on your approach and step-by-step procedures. Write down first-time procedures. Discuss hazards and procedures in a job briefing with your supervisor and other workers before starting a job. Your employer should already have or dev…

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Publisher: SALUS
Final reviewer: Francis Langlois
Original answer: Jun 28, 2026

Who, how, and why

Rosie, the contractors' AI Admin & Risk Assistant, works across the operational workflows to take care of the busy work, make capture in the field effortless, surface risk, and create business-ready outputs—without removing human judgment.

Rosie was grounded in a curated, human-created, SALUS-verified source library and retrieved relevant material for each question. SALUS published the English answer exactly as generated after duplicate screening. Francis Langlois reviewed the English content.

Rosie was offered as a free tool so people could ask real workplace-safety questions and receive immediate guidance. SALUS is preserving these human-requested answers because the same questions recur across jobsites and safety teams, and because the resulting threads can help people compare experience, clarify guidance and find relevant supporting material.

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Safety compliance Electrical safety Emergency response Equipment safety Hazard assessment Incident management Personal protective equipment Safety training

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1\. Contact with live electrical parts during PAT setup, probing, or verification when equipment is not fully isolated or when covers, plugs, or enclosures are damaged.

Initial Risk Assessment

Control Measures

Residual Risk Assessment

2\. Unexpected start-up or re-energization of equipment during testing, repair, or return-to-service activities.

Initial Risk Assessment

Control Measures

Residual Risk Assessment

3\. Use of damaged portable appliances, cords, plugs, or extension leads that have exposed conductors, overheating, loose connections, or degraded insulation.

Initial Risk Assessment

Control Measures

Residual Risk Assessment

4\. Overloading or misuse of extension leads, multi-outlet adaptors, and temporary power distribution in offices, laboratories, and production support areas.

Initial Risk Assessment

Control Measures

Residual Risk Assessment

5\. Inadequate competence of persons performing PAT, including incorrect test selection, incorrect pass/fail decisions, or failure to recognize unsafe conditions.

Initial Risk Assessment

Control Measures

Residual Risk Assessment

6\. Incorrect use of PAT test instruments, including damaged leads, incorrect settings, poor calibration, or failure to verify instrument operation before and after testing.

Initial Risk Assessment

Control Measures

Residual Risk Assessment

7\. Residual current device protection failure or absence of RCD/GFCI protection on portable equipment circuits, especially in laboratories, wet areas, or temporary power arrangements.

Initial Risk Assessment

Control Measures

Residual Risk Assessment

8\. Poor housekeeping, trailing leads, and clutter around PAT workstations causing slips, trips, falls, or contact with equipment under test.

Initial Risk Assessment

Control Measures

Residual Risk Assessment

9\. Exposure of employees and others to electrical hazards during maintenance, troubleshooting, or temporary energization for testing and positioning.

Initial Risk Assessment

Control Measures

Residual Risk Assessment

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