Guarding Nip and Shear Points: Common Violations in Solar and Wind Energy

When it comes to ensuring safety in the solar and wind energy sectors, adherence to ANSI B20.5.9.3 standards is crucial, especially concerning the guarding of nip and shear points. In these industries, where mechanical systems are often exposed to the elements and maintenance personnel, the risk of accidents is heightened if these standards are not met.

Understanding ANSI B20.5.9.3

ANSI B20.5.9.3 mandates that nip and shear points on machinery must be guarded unless alternative safety measures are in place. Nip points occur where two parts move together, potentially trapping objects or body parts, while shear points are where two parts move past each other, creating a cutting or shearing action. This standard is particularly relevant in solar and wind energy due to the use of conveyors and other moving parts.

Common Violations in Solar Energy

In solar energy installations, one common violation we often encounter is the inadequate guarding of conveyor systems used in panel manufacturing and installation. These systems, if not properly guarded, can lead to severe injuries due to the high speed and force at which they operate.

Another frequent issue is the lack of regular maintenance and inspection of existing guards. Over time, guards can become damaged or misaligned, reducing their effectiveness. In my experience, many solar facilities prioritize production over safety, leading to a lapse in regular safety audits which could identify these issues before they result in accidents.

Common Violations in Wind Energy

Wind energy facilities face similar challenges, particularly with the maintenance of turbine components. The nacelle, which houses the gearbox and generator, contains numerous nip and shear points. Often, guards are removed during maintenance and not replaced promptly, leaving workers vulnerable.

Additionally, the design of some wind turbines may not fully comply with ANSI standards, especially in older models. While newer designs incorporate better safety features, retrofitting older turbines to meet current standards can be overlooked, leading to potential safety hazards.

Best Practices for Compliance

• Regular Safety Audits: Conduct thorough and regular safety audits to ensure all nip and shear points are properly guarded. Use tools like our Job Hazard Analysis reporting and tracking to document and manage these audits effectively.
• Training and Awareness: Implement comprehensive training programs to educate workers on the importance of guarding and the risks associated with nip and shear points. Leverage our training management system to streamline this process.
• Maintenance Protocols: Establish strict maintenance protocols that include immediate replacement of any removed guards. Utilize our incident reporting and tracking system to log any incidents and learn from them to improve safety measures.

While these best practices are based on available research, individual results may vary. The key is to remain vigilant and proactive in safety management, understanding that the unique challenges of solar and wind energy require tailored safety solutions.