ANSI ASSP A10.21:2018 pdf download.Safety Requirements for Safe Construction and Demolition of Wind Generation/Turbine Facilities.
ANSI ASSP A10.21 establishes the minimum requirements for protecting the safety and health of persons involved in construction and demolition operations addressing utility-scale land-based wind generation/turbine facilities.
1.2 Purpose. The purpose of this standard is to establish minimum safety requirements and provide recommended best practices for the construction and demolition of wind energy projects.
1.3 Application. This standard is intended to serve as a guide to employers engaged in the construction or demolition of wind energy projects. It can also serve as a reference to regulatory agencies in whose jurisdictions wind energy projects may be built or demolished. This standard is intended to apply during the construction and demolition phases of wind energy projects, not during the development or operations phases. This standard does not cover offshore wind energy projects, nor activities occurring off-site, nor the construction or demolition of small wind turbine systems.
1.4 Modifications and Exceptions. In cases of practical difficulties, unnecessary hardships or new developments, exceptions to the literal requirements may be granted by the enforcing authority to permit the use of other devices or methods, but only when it is clearly indicated that the equivalent protection is thereby secured.
1.5 Mandatory and Advisory Rules. Mandatory rules of this standard are characterized by the word “shall.” If a rule is of an advisory nature, it is indicated by the word “should,” or is stated as a recommendation or commentary. The appendices are advisory.
2. DEFINITIONS
2.1 Advanced Life Support Unit (ALS). A unit of emergency medical responders with advanced training, typically to emergency medical technician (EMT) paramedic level. ALS unit requirements are defined further in NFPA 1710, Standard for the Organization and Deployment of Fire Suppression Operations, Emergency Medical Operations, and Special Operations to the Public by Career Fire Departments.
2.2 Arc Flash. A dangerous condition associated with the release of energy caused by an electrical arc.
2.3 Arc Flash Hazard Analysis. A study investigating a worker’s potential exposure to arc flash energy, conducted for the purpose of injury prevention and the determination of safe work practices, arc flash boundary and the appropriate levels of personal protective equipment (PPE).
2.4 Blasting. The controlled detonation of explosives to achieve a desired effect such as the removal of an obstruction, demolition of a building, creating an opening in rock or other desired outcome from the use of the destructive properties of an explosive agent.
2.5 Competent Person. One who is capable of identifying existing and predictable hazards in surroundings which are unsanitary, hazardous or dangerous to employees, and who has the authority to take prompt corrective measures to eliminate them.ANSI ASSP A10.21 pdf download.