What about head protection?
Many workplaces have hazards, some of them serious hazards. Employers try to mitigate them by using engineering solutions (including elimination or substitution) first, followed by safe work practices, administrative controls, and finally, personal protective equipment (PPE).
A common piece of PPE, especially on construction jobsites, is the hardhat. OSHA requires at 1926.100 that, “Employees working in areas where there is a possible danger of head injury from impact, or from falling or flying objects, or from electrical shock and burns, shall be protected by protective helmets.”
The need for head protection is not limited to construction work. Employees in general industry facilities are also exposed to potential head hazards when doing assembly work, performing work in confined spaces, and working around overhead cranes. OSHA’s standard for this is found at 1910.135 and it generally follows the 1926.100 line of thought.
Another common hazard on both construction jobsites and general industry facilities is exposure to electricity. Part of what 1910.135 says is, “The employer shall ensure that a protective helmet designed to reduce electrical shock hazard is worn by each such affected employee when near exposed electrical conductors which could contact the head.” Maintenance employees, electricians, and shop workers (among others) can be exposed to electrical shock hazards and need to wear approved head protection.
How does an employer know a hard hat meets OSHA’s requirements? OSHA references the criteria in the standard American National Standards Institute (ANSI) Z89.1 consensus standard incorporated by reference in 1910.6. There are three editions of the standard that employers can choose from (1997, 2003, and 2009).
To complicate matters further, head protection is currently made and labeled as one of two types and one of three classes:
- Type 1 Helmets: intended to reduce the force of impact resulting from a blow only to the top of the head.
- Type 2 Helmets: intended to reduce the force of impact resulting from a blow to the top or sides of the head.
- Class G helmets are intended to reduce the danger of contact exposure to low voltage conductors. The helmet manufacturer proof tests samples at 2,200 volts (phase to ground). However, this voltage is not intended as an indication of the voltage at which the helmet protects the wearer.
- Class E helmets are intended to reduce the danger of contact with higher voltage conductors. The helmet manufacturer proof tests samples at 20,000 volts (phase to ground). Again, this voltage is not intended as an indication of the voltage at which the helmet protects the wearer.
- Class C helmets are not intended to provide protection against contact with electrical hazards.
So, how does an employer know which hard hat workers need to wear? That’s where OSHA’s requirement to perform a hazard assessment comes into play. A hazard assessment is an evaluation of the workplace to identify sources of hazards or potential hazards to workers. At 1910.132(d) OSHA requires that the “employer shall assess the workplace to determine if hazards are present or are likely to be present” that would require the use of personal protective equipment (PPE). When employers get the results of this assessment, they’ll be able to determine what type of head protection their employees will need.
The take-away here is that hazards to the head can be common at different types of workplaces, and the need to protect employees at risk is the responsibility of the employer.