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In the realm of building safety, particularly concerning fire protection, adhering to established regulations is paramount. The South African National Standards (SANS) 10400 outlines comprehensive requirements to ensure that buildings are designed, constructed, and equipped to safeguard occupants in the event of a fire. An essential, yet often overlooked, aspect of these safety measures is the role of “light-blocking coatings” in managing solar PV systems during emergencies. At PVStop South Africa, we are committed to highlighting the importance of these coatings and ensuring this get to the South African market to be readily available on the premises.

The Importance of Light Blocking Coatings

Solar PV systems, while immensely beneficial for sustainable energy, pose unique challenges during a fire. PV panels continue to generate electricity as long as they are exposed to light, creating a potential hazard for fire-fighting efforts. Light blocking coatings, such as those provided by PVStop, offer a crucial solution by de-energizing PV panels swiftly and effectively. This not only enhances the safety of first responders but also aligns with the fire safety regulations outlined in SANS 10400.

SANS 10400: Key Fire Safety Requirements

SANS 10400 Part T specifies the need for buildings to be equipped with adequate fire detection, control, and extinguishing systems. Key requirements include:

• Protection of Occupants: Buildings must be designed to protect all occupants, including those with disabilities, during a fire.
• Minimization of Fire Spread: The spread and intensity of fires must be minimized to protect the building and adjacent structures.
• Structural Stability: Buildings must maintain sufficient stability to prevent collapse, especially in multi-storey structures.
• Smoke Control: The generation and spread of smoke must be controlled to facilitate safe evacuation.
• Emergency Equipment: Adequate fire-fighting equipment and emergency exits must be provided and maintained.

Incorporating Light Blocking Coatings in Evacuation Plans

To comply with SANS 10400 and enhance overall fire safety, it is essential to integrate light blocking coatings into your building’s evacuation plan. Here’s how PVStop can help:

1. Availability of Light Blocking Coating: Ensure that light blocking coatings are available on-site for immediate use in emergencies. These coatings are vital for quickly de-energizing PV panels and preventing electrical hazards.
2. Clear Emergency Procedures: Include specific instructions in your evacuation plan for applying the light blocking coating to PV panels. Train designated personnel on the correct application methods and ensure they are aware of the coating’s location.
3. Coordination with Fire Services: Develop a joint action plan with local fire services, informing them about the presence of PV systems and the availability of light blocking coatings. Ensure they are familiar with the procedure for de-energizing PV panels and the location of emergency shutdown switches.
4. Training and Drills: Conduct regular training sessions and fire drills to ensure all building occupants are familiar with evacuation routes and procedures. Specific training on the use of light blocking coatings should be provided to designated personnel.
5. Regular Maintenance and Reviews: Periodically review and update your evacuation plan and fire safety measures to comply with the latest SANS 10400 standards. Ensure all safety equipment, including light blocking coatings, is maintained and readily accessible.

At PVStop, we understand the critical role that light blocking coatings play in enhancing fire safety, particularly in buildings equipped with solar PV systems. By incorporating these coatings into your evacuation plan and ensuring compliance with SANS 10400, you can significantly enhance the safety of your building and its occupants during a fire. For more information on our light blocking coatings and how they can help you meet regulatory standards, please contact us today.

By prioritizing fire safety and leveraging innovative solutions like PVStop, you can create a safer environment for everyone. Let’s work together to ensure that every building is prepared and equipped to handle emergencies effectively.

The Occupational Health and Safety Act (OHSA) of South Africa mandates specific procedures and guidelines to ensure safety during emergencies, including fires, at schools and businesses. While the OHSA does not provide a detailed step-by-step evacuation plan, it requires employers to implement and maintain safe working conditions, which include having an emergency action plan. Here are the key procedures generally required:

General Fire Safety Procedures

1. Emergency Preparedness Plan:
   • Develop a comprehensive emergency preparedness plan that includes fire safety procedures.
   • Ensure the plan is easily accessible and communicated to all employees and students.
2. Evacuation Plan:
   • Clearly mark all emergency exits and ensure they are free of obstructions.
   • Designate assembly points at a safe distance from the building.
   • Conduct regular fire drills to familiarize everyone with the evacuation routes and procedures.
3. Fire Alarms and Detection Systems:
   • Install and maintain fire alarms and smoke detectors throughout the premises.
   • Ensure that alarms are audible and visible to alert all occupants.
4. Fire Extinguishers and Firefighting Equipment:
   • Equip the building with appropriate fire extinguishers, and ensure they are easily accessible.
   • Train designated personnel in the proper use of firefighting equipment.
5. Emergency Contacts and Communication:
   • Maintain an updated list of emergency contact numbers.
   • Ensure that communication systems (e.g., PA systems, radios) are functional and can be used during an emergency.
6. Training and Drills:
   • Conduct regular fire safety training for all staff and students.
   • Organize regular fire drills to practice evacuation procedures.
7. First Aid and Medical Response:
   • Have first aid kits readily available.
   • Train staff in basic first aid and emergency response.

Specific Guidelines for Solar PV Installations

Given the specific risks associated with solar PV systems, such as the presence of live DC wires even when the main power is shut down, additional precautions are necessary. Here are the guidelines:

1. Risk Assessment:
   • Conduct a thorough risk assessment of the PV system to identify potential hazards.
   • Implement control measures to mitigate these risks.
2. Signage and Labeling:
   • Clearly label all components of the PV system, including inverters and combiner boxes.
   • Post warning signs to indicate the presence of high voltage and live wires.
3. PVStop or Similar Products: (If available)
   • Ensure PVStop or similar de-energizing products are available on the premises.
   • Train personnel in the proper use of these products to safely de-energize the PV system during an emergency.
4. Isolation Procedures:
   • Develop procedures for safely isolating and shutting down the PV system.
   • Ensure that these procedures are part of the overall emergency action plan.
5. Emergency Response Coordination:
   • Coordinate with the local fire department to develop a joint action plan for emergencies involving the PV system.
   • Provide the fire department with detailed information about the PV system layout and isolation points.
6. Danger Zones:
   • Mark danger zones around PV installations where DC voltage is present.
   • Ensure that these areas are off-limits to untrained personnel during emergencies.
7. Regular Inspections and Maintenance:
   • Conduct regular inspections of the PV system to ensure it is in good working condition.
   • Address any maintenance issues promptly to prevent potential hazards.

Example of a Fire Emergency Procedure for a School or Business with Solar PV System

1. Immediate Actions:
   • Upon discovering a fire, immediately activate the nearest fire alarm.
   • Call emergency services and provide them with detailed information about the fire and any specific risks related to the PV system.
2. Evacuation:
   • Evacuate the building using the nearest safe exit.
   • Avoid areas with marked danger zones related to the PV system.
   • Proceed to the designated assembly point.
3. Using PVStop:
   • If safe to do so, trained personnel should use PVStop to de-energize the PV modules.
   • Inform the fire department upon their arrival about the use of PVStop and the current status of the PV system.
4. Coordination with Fire Department:
   • Provide the fire department with the layout of the PV system and any specific isolation points.
   • Assist the fire department as needed, ensuring they are aware of the live DC hazards.
5. Post-Emergency Actions:
   • Conduct a headcount at the assembly point to ensure everyone is accounted for.
   • Do not re-enter the building until it has been declared safe by the fire department.

By following these procedures and guidelines, schools and businesses can enhance their preparedness for fire emergencies, particularly those involving the unique hazards of solar PV systems. Regular training, clear communication, and coordination with emergency services are key components of an effective fire safety plan.

Disclaimer

This document is provided solely for awareness purposes and should not be considered a comprehensive action plan for emergency preparedness and response. While it outlines general guidelines and procedures, it is crucial to consult with and involve the appropriate authorities and professionals to develop a detailed and compliant emergency action plan tailored to your specific needs.

We strongly recommend contacting your organization’s safety officers, local fire department, emergency response teams, and other relevant authorities to ensure that your emergency procedures comply with all legal and safety requirements. Professional advice and regular updates are essential to maintain an effective and compliant safety strategy.

For specific guidance and to ensure full compliance with the Occupational Health and Safety Act (OHSA) of South Africa, as well as best practices for handling emergencies involving solar PV systems, please consult with qualified safety professionals and regulatory bodies.

Contact Information and sudgestions for Compliance and Safety Support:

• NOSA Five Star System: tel:+27873303790
• Local Fire Department:
• Emergency Response Teams:
• Your Solar Installation Company:
• Regulatory Bodies: OHS at the Worplace

By following professional advice and involving the appropriate authorities, you can ensure that your emergency action plan is comprehensive, effective, and compliant with all relevant safety standards and regulations.

As the world increasingly turns to renewable energy sources like solar power, it’s crucial to address the unique challenges they pose, particularly in emergency situations such as fires. Recent discussions by the FDNY, highlighted in a CBS News New York video, shed light on the complexities faced by firefighters when dealing with solar panel installations.

The FDNY underscores the importance of awareness among first responders worldwide. While the industry often focuses on the causes of such incidents, solutions like PVStop offer effective mitigation strategies.

PVStop recognizes the ongoing efforts to improve safety, especially in larger-scale rooftop installations. However, it’s essential to consider the challenges presented by residential, smaller, and older systems. These complexities can significantly hinder firefighting operations and jeopardize lives and properties.

In response to these challenges, PVStop provides a simple yet powerful solution. By equipping firefighters and Fire Chiefs with the tools and knowledge needed to address solar panel-related risks effectively, PVStop empowers them to carry out their duties safely and efficiently.

Our commitment to enhancing firefighter safety extends beyond providing solutions; it involves fostering awareness and understanding of the risks associated with solar panel installations. By advocating for the widespread adoption of PVStop and similar initiatives, we aim to create safer environments for both firefighters and communities.

Together, let’s ensure that firefighters have the resources they need to tackle solar panel-related incidents confidently. With PVStop, we can make significant strides towards safer firefighting practices and ultimately save lives and properties.

The Rise of Solar PV Installations and Associated Risks
The rise of solar photovoltaic (PV) installations in South Africa has significantly
reshaped our energy landscape. As these installations proliferate, so do the associated
risks, with fire safety emerging as a prominent concern. Municipalities are confronting
challenges in effectively combating fires involving PV installations, highlighting the need
for proactive measures.
The Challenge: Fire Safety and PV Installations
A critical issue facing our communities is the capacity of municipalities to combat fires
involving PV installations effectively. The absence of specialized training and equipment
makes firefighting in properties with solar panels a complex task. Firefighters often
grapple with safely de-energizing solar panels, amplifying the risk of live electricity and
potential secondary fires.
Additionally, combating these fires necessitates significant water usage. While water is
vital for fire control, excessive amounts can result in substantial property water damage,
impacting roofing structures and causing interior damage.
Solar panels’ persistent nature further complicates firefighting efforts. Damaged solar
panels continue to produce energy when exposed to sunlight, posing risks of secondary
fires. This risk escalates, especially the morning after a fire incident when sunlight
triggers damaged cabling to arc again.

A Solution: Introducing PVStop
To address these challenges, we present PVStop, a premium product engineered to
safely de-energize PV systems. This innovative solution provides a simple and effective
means to mitigate risks associated with PV installations during fire emergencies.

Case Study: An Incident with a 150kW High Voltage Hybrid System

We recently collaborated with an insurance assessor on a concerning incident involving
a newly installed 150kW 3-phase high voltage hybrid system. Despite its compliance
with regulations, and protocols, and having received a Certificate of Compliance (COC),
the system faced a potentially catastrophic fault.

Early detection was crucial. A fault below or within the PV combiner box triggered efforts to
extinguish the ensuing electrical fire. While standard carbon dioxide fire extinguishers
were used, the persistent arcing of DC current thwarted these efforts.

The remote location of the installer, situated 200km away, presented logistical
challenges. The recommended immediate solution was to de-energize the solar panels.
However, lacking a disconnect between the PV array and the combiner box, the only
viable action was to cut the PV cables close to the panel—a risky decision that
contravened occupational health and labour laws.

Despite the inherent dangers, this intervention successfully disconnected the current
to the PV combiner box, enabling effforts to manage the fire in the inverter room,
where lithium batteries—known fire accelerants—were housed.

For educational purposes see the following : Check out this video depicting another scenario where DC cables had to be cut. Witness the creation of a DC arc and grasp the perilous nature of such efforts. This serves purely for informational purposes. The other video showcases how combiner boxes ignite and swiftly obliterate when arcing occurs. Prevention within PV combiner boxes is crucial, with Thermarestor offering a viable solution.

Root Cause Analysis
The investigation into the exact cause is ongoing. Potential causes range from damaged
cables within the conduit, human error with loose connections in the PV combiner box,
rodent damage, to cable overheating. Implementing early detection methods, such as
thermal inspections and monitoring technologies, could pre-emptively identify these
issues.

Responsibility and Liability
Determining responsibility in emergencies involving PV installations remains a
contentious issue. Whether it’s the homeowner, body corporate, building owner, or
installer, the question of liability is often unclear. This ambiguity can lead to challenges
in addressing risks and implementing preventive measures effectively.

Conclusion
The incidents involving solar panel installations in South Africa underscore the urgent
need for action in fire safety. PVStop emerges as a practical solution to significantly
enhance safety during fire emergencies involving PV systems.

For Managing Agents, trustees, committees, and service providers, staying informed
and proactive is paramount. Embracing innovations like PVStop and advocating for
clear guidelines on responsibility during emergencies can foster safer communities and
sustainable growth in the renewable energy sector.
Let’s prioritize safety, collaboration, and innovation to navigate the evolving landscape
of renewable energy in South Africa, ensuring a brighter and safer future for all.

An Empowering Guide for Firefighters in Lithium and Solar Fires – By Kyle Edwards

More about Kyle Edwards

PV Modules safety during disasters and emergencies

The Western Cape and surrounding areas are currently facing the wrath of intense storms, with GaleForce winds causing widespread havoc. In the midst of this tumultuous weather, it is absolutely crucial to prioritize the safety of your solar modules and roofs. The damage caused by these storms can be catastrophic, leading to significant financial losses and posing risks to both property and lives.

We have witnessed numerous instances of roofs being torn off and solar modules being damaged or completely dislodged by the force of the winds. Such incidents not only result in immediate damage but can also disrupt the functionality of your solar energy system, leading to prolonged downtime and additional expenses for repairs.

To safeguard your property and loved ones, it is imperative to take proactive steps today. The first and most important action is to call your solar installer immediately to schedule an inspection of your solar modules. Do not delay, as early intervention can prevent further damage and ensure the safety of your system.

During the inspection process, your installer will advise you to switch off the PV array from your inverter at the PV Combiner box. This step is essential to prevent any additional load on the system until a thorough assessment is complete. Keep in mind that even when switched off, solar modules remain live when exposed to sunlight, so exercise caution and follow your installer’s instructions diligently.

Your installer will carefully disconnect the MC4 connections from each module and conduct a meticulous inspection for any visible damage or signs of wear and tear. While some issues may not be immediately apparent, thermal imaging technology can help detect faults and hotspots accurately, ensuring that no underlying problems go unnoticed.

It is crucial to prioritize safety at all times and avoid attempting any DIY repairs, especially when it comes to tasks involving height-related risks and electrical hazards. Keep a vigilant eye on your system for any signs of arcing, smoke, or fire, and if you have any doubts or suspicions, do not hesitate to contact your local fire department immediately.

In situations where immediate de-energizing of PV modules is necessary during emergencies, PVStop provides a reliable solution. PVStop is designed to safely deactivate PV modules, offering peace of mind during critical situations. Once repairs and maintenance are complete, simply peel off PVStop, restoring your system to its optimal functionality.

For assistance and advice regarding fire suppression and safety measures, contact Real Fire Suppression (Based in CapeTown). Gregory Jordaan and Joe Smith are dedicated experts in the field, ready to provide guidance and support when you need it most.

Visit www.pvstop.co.za to access valuable information on the risks associated with storms and learn how to mitigate them effectively. Let’s work together to prioritize safety and minimize the risks posed by GaleForce winds and other emergencies. Stay safe, everyone!

#pvstop #galeforcewinds #emergencies #disaster

On March 24, the FDNY responded to a solar panel fire on the roof of a house in Staten Island, NY. Solar panel fires are a DC electrical event and can be difficult to extinguish with water. FDNY was equipped with PVStop, a product specifically designed to deal with the hazards presented by solar panels, and was able to extinguish the fire.

Investing in solar energy is akin to making a strategic financial investment—one that promises both environmental sustainability and financial returns. In South Africa, where the potential for solar power is abundant, investors are increasingly turning to renewable energy as a means of securing their future while contributing to a greener planet. However, just like any financial investment, investing in solar energy comes with inherent risks that must be carefully managed and mitigated to ensure long-term success.

As with any investment, understanding and managing risks are paramount to success. In the realm of solar energy, these risks can range from technical malfunctions to external factors such as regulatory changes and natural disasters. To mitigate these risks effectively, investors must partner with reputable installation companies that prioritize transparency and offer robust solutions for risk mitigation.

One such challenge facing investors in the South African solar market is the limited availability of specialized risk mitigation solutions, such as PVStop. Despite its proven effectiveness in de-energizing systems during emergencies, the widespread adoption of PVStop faces challenges due to regulatory barriers and logistical constraints. Moreover, PVStop stands out as the primary solution in its class, with virtually no direct competition, further complicating discussions among authorities and decision-makers.

While PVStop remains a critical component of risk mitigation strategies, it’s essential to explore complementary solutions to enhance overall system resilience. Products like Thermarestor® , Arc Detection ARCBOX solutions on MC4 connections, and Rapid Shutdown Devices offer additional layers of protection against technical failures and external threats. By diversifying risk mitigation strategies and leveraging a combination of innovative solutions, investors can safeguard their solar investments more effectively.

In addition to technical risks, investors must also consider broader market dynamics and regulatory factors that could impact the viability of their solar investments. Staying informed about regulatory changes and market trends is essential for making informed investment decisions and navigating the evolving landscape of the South African solar market.

Ultimately, investing in solar energy in South Africa represents more than just a financial commitment—it’s a commitment to building a sustainable future for generations to come. By actively managing risks and exploring innovative solutions for risk mitigation, investors can safeguard their investments while contributing to the growth of renewable energy in South Africa. Together, we can harness the power of the sun to create a brighter, more sustainable future for all.