What is UL 1876 Ed. 3?

UL 1876 Ed. 3 is a technical standard that sets the requirements for power outlet strips, also known as power bars or surge protectors. This standard ensures the safety and reliability of these devices by defining the electrical and mechanical characteristics they must meet. Compliance with UL 1876 Ed. 3 is essential for manufacturers who want to market their power outlet strips in the United States.

Key Requirements of UL 1876 Ed. 3

Electrical Safety

One of the primary objectives of UL 1876 Ed. 3 is to ensure electrical safety. This includes requirements for voltage ratings, current ratings, grounding, and protection against electric shock. Power outlet strips must be designed and manufactured to withstand the specified voltages and currents without causing hazards such as overheating or short circuits. Additionally, these devices should have proper grounding to minimize the risk of electric shock to users.

Mechanical Durability

Another important aspect covered by UL 1876 Ed. 3 is mechanical durability. Power outlet strips are subjected to daily wear and tear due to plugging and unplugging various electrical devices. To ensure long-lasting performance, the standard defines requirements for structural integrity, strain relief, and cord anchorage. These provisions ensure that the power outlet strips can withstand the stress they may experience during normal use, preventing damage to internal components or external parts.

Surge Protection

In recent years, surge protectors have become increasingly popular due to their ability to safeguard electronic devices from power surges. UL 1876 Ed. 3 addresses surge protection by setting criteria for Joule rating, response time, and clamping voltage. A higher Joule rating signifies better protection against energy spikes, while a faster response time and lower clamping voltage ensure quicker suppression of voltage surges. Manufacturers must comply with these specifications to provide reliable surge protection to consumers.

Conclusion

UL 1876 Ed. 3 is a crucial standard for power outlet strips, guaranteeing their electrical safety, mechanical durability, and surge protection capabilities. By adhering to these requirements, manufacturers can create products that meet the highest standards of performance and user safety. When purchasing power outlet strips, consumers should look for the UL 1876 Ed. 3 certification mark to ensure they are getting a safe and reliable product.