𝗔𝗿𝗰 𝗙𝗹𝗮𝘀𝗵 𝗥𝗶𝘀𝗸 𝗠𝗶𝘁𝗶𝗴𝗮𝘁𝗲𝗱 𝗳𝗼𝗿 𝟯𝟬.𝟴 𝗠𝗪𝗽 𝗦𝗼𝗹𝗮𝗿 𝗣𝗿𝗼𝗷𝗲𝗰𝘁 𝗶𝗻 𝗡𝗲𝘄 𝗭𝗲𝗮𝗹𝗮𝗻𝗱

Arc flash isn’t just a compliance checkbox—it’s a matter of life and safety.
We’re proud to support Trinity Touch Pvt Ltd in performing a detailed 𝗗𝗖 𝗮𝗿𝗰 𝗳𝗹𝗮𝘀𝗵 𝘀𝘁𝘂𝗱𝘆 for the 𝟯𝟬.𝟴 𝗠𝗪𝗽 / 𝟮𝟰 𝗠𝗪𝗮𝗰 𝗧𝘄𝗶𝗻 𝗥𝗶𝘃𝗲𝗿 𝗦𝗼𝗹𝗮𝗿 𝗙𝗮𝗿𝗺, located in 𝗡𝗲𝘄 𝗭𝗲𝗮𝗹𝗮𝗻𝗱, 𝘂𝘀𝗶𝗻𝗴 𝗘𝗧𝗔𝗣.
This study focused on analyzing and labeling over 𝟭𝟭𝟰 𝗦𝘁𝗿𝗶𝗻𝗴 𝗖𝗼𝗺𝗯𝗶𝗻𝗲𝗿 𝗕𝗼𝘅𝗲𝘀 (𝗦𝗖𝗕𝘀) 𝗮𝗻𝗱 𝗦𝗣𝗦 𝗽𝗮𝗻𝗲𝗹𝘀 to comply with 𝗡𝗙𝗣𝗔 𝟳𝟬𝗘:𝟮𝟬𝟮𝟰 and ensure safety for frontline technicians.

𝗦𝗰𝗼𝗽𝗲 𝗼𝗳 𝗦𝘁𝘂𝗱𝘆
• Modeled the entire PV DC system including strings, SCBs, and SPS.
• Used the Paukert method to compute incident energy levels and arc flash boundaries.
• Defined arc flash categories and recommended PPE levels for each panel.
• Generated hazard labels and boundary distances for all DC panels.
• Simulated worst-case fault conditions under irradiance of 1000 W/m² and temperature of 50°C.

𝗖𝗵𝗮𝗹𝗹𝗲𝗻𝗴𝗲𝘀 𝗙𝗮𝗰𝗲𝗱
• High panel count (114+), each requiring individual fault analysis.
• Incident energy up to 8.9 cal/cm² observed at SPS bus panels.
• Non-uniform arc flash hazard levels across panels, complicating O&M strategy.
• Accurate modeling of fuse behavior and worst-case fault clearing time.
• Ensuring compliance with international arc flash safety standards (NFPA 70E, IEEE 1584).

𝗥𝗲𝗰𝗼𝗺𝗺𝗲𝗻𝗱𝗮𝘁𝗶𝗼𝗻𝘀
• Apply arc flash labels with hazard boundary information on all SCBs and SPS panels.
• Enforce PPE Level 1 for SCBs and PPE Level 3 for SPS panels.
• Implement remote isolation and proper lock-out/tag-out (LOTO) procedures.
• Conduct periodic arc flash reviews and NFPA 70E safety training for technicians.

This project reinforces the importance of arc flash risk studies—especially in high-density PV systems where fault energy can vary dramatically from one panel to another.