Five things to know before letting employees work with electricity
It’s not uncommon for companies to have their employees work on energized electrical circuits and equipment. However, there are five action items you need to know before you allow that.
1. Do you know the applicable regulations?
Both you and the employee must know what regulations govern the task. The two most common regulations are OSHA’s 1910 Subpart S and the National Fire Protection Association’s (NFPA) 70E, Standard for Electrical Safety in the Workplace.
OSHA’s Subpart S has been around for a long time and hasn’t been updated in many years, so it’s often considered outdated. However, employers must still comply with it. NFPA 70E is much more current and the 2024 edition was just released. That’s why many companies use it, in conjunction with Subpart S. It’s interesting to note 70E isn’t incorporated by reference by OSHA in 1910.6. However, NFPA 70E is typically used as supporting evidence for violations of OSHA’s electrical standards.
Need more information to enhance your electrical safety program? See our ezExplanation on Electrical Safety. |
2. Are they qualified?
Both OSHA and NFPA 70E have requirements for allowing only qualified employees to work on energized electrical equipment.
OSHA uses the term “qualified person” to explain when someone can work on energized electrical equipment. This is from 1910.332(b)(3):
“Qualified persons (i.e., those permitted to work on or near exposed energized parts) shall, at a minimum, be trained in and familiar with the following:
“(i) The skills and techniques necessary to distinguish exposed live parts from other parts of electric equipment,
“(ii) The skills and techniques necessary to determine the nominal voltage of exposed live parts, and
“(iii) The clearance distances specified in 1910.333(c) and the corresponding voltages to which the qualified person will be exposed.”
NFPA 70E also uses the term “qualified person” to describe when someone can work on energized electrical equipment and it’s like OSHA’s. 70E is a copyrighted publication, so we can’t quote from it.
3. Are they installing only listed and labeled equipment?
Both OSHA and NFPA 70E require only listed and labeled equipment to be used and installed. OSHA’s definitions are:
“Listed. Equipment is ’listed’ if it is of a kind mentioned in a list that: (1) Is published by a nationally recognized laboratory that makes periodic inspection of the production of such equipment, and (2) States that such equipment meets nationally recognized standards or has been tested and found safe for use in a specified manner.”
“Labeled. Equipment is ’labeled’ if there is attached to it a label, symbol, or other identifying mark of a nationally recognized testing laboratory: (1) That makes periodic inspections of the production of such equipment, and (2) Whose labeling indicates compliance with nationally recognized standards or tests to determine safe use in a specified manner.”
Make sure listed or labeled equipment is installed and used according to the instructions.
4. Do they know the lockout/tagout requirements?
OSHA’s electrical safety standard applies to service activities that involve removing covers from wiring and electrical parts. When employers need to control the exposure to electrical shock hazards because employees are working near exposed electrical parts, the lockout/tagout (LOTO) provisions in the electrical safety standards at 1910.333(b) apply.
One of the differences between mechanical and electrical LOTO involves the use of locks and tags. For mechanical lockout, employers can apply a lock without a tag (if the lock itself identifies who applied it).
For electrical lockout, employers generally must apply both a lock and a tag. The tags must have a statement prohibiting unauthorized operation of the disconnecting means and removal of the tag. Employers can only use a lock without a tag if:
- Only one circuit or piece of equipment is deenergized,
- The lockout period doesn’t extend beyond the work shift, and
- The employees exposed to the hazards are familiar with the procedure.
Finally, require that a qualified person:
- Verifies the parts are deenergized by operating the machine’s operating controls, and
- Uses electrical test equipment to test the exposed circuit elements to verify they’re deenergized.
Curious about lockout/tagout violations? See our Compliance Network article “Myths that cause lockout/tagout violations.” |
5. Do they have the proper PPE?
It’s vital that employers provide the proper personal protective equipment for employees working on energized equipment. This can range from eye, face, head, hearing, and hand protection.
In addition, PPE specific to electrical work includes rubber insulating:
- blankets,
- matting,
- covers,
- line hose,
- gloves, and
- sleeves.
Key to remember
When you allow your employees to work on energized electrical equipment, follow the five action items listed above. That way, those employees can safely go home at the end of their shift.