What is UL 60335-2-347 ?

Title: Understanding UL 60335-2-347 and UL 60335-2-366: Safety Standards for Commercial Electric Cooking and Air Conditioning Appliances

Introduction:

The use of commercial electric cooking and heating appliances is increasing significantly, and with it, the need for safety standards. Two such standards are UL 60335-2-347 and UL 60335-2-366. Understanding these standards is crucial for manufacturers, as they outline the requirements for the design, production, and testing of commercial electric cooking and heating appliances. In this article, we will discuss the key requirements and testing procedures of these two safety standards.

UL 60335-2-347: Safety Requirements for Commercial Electric Cooking Appliances

UL 60335-2-347 is a safety standard developed by Underwriters Laboratories (UL) for commercial electric cooking appliances. This standard specifically applies to appliances that are used in professional kitchens, such as ovens, ranges, and grills. The main purpose of UL 60335-2-347 is to reduce the risks associated with the use of these appliances in professional kitchens.

Key Requirements of UL 60335-2-347:

1. Electrical Safety: Appliances must be designed and manufactured to minimize the risk of electrical shock, fire, or other injuries. This includes ensuring that all electrical components are properly insulated, grounded, and have appropriate labeling.

2. Fire Prevention: Appliances must be designed and manufactured to prevent fires associated with the high temperatures, heavy loads, and demanding operating conditions. This includes ensuring that all burners, coils, and other heat-producing components are properly insulated, grounded, and have appropriate temperature limits.

3. Heat Distribution: Appliances must be designed and manufactured to ensure that heat is evenly distributed to prevent overheating or uneven cooking. This includes ensuring that all heaters are properly insulated and that appliance dimensions are appropriate for the space.

4. Controls and Mechanisms: Appliances must be designed and manufactured to allow for easy and safe operation. This includes ensuring that all controls are properly labeled, located, and accessible, and that all mechanisms are designed to prevent user error.

UL 60335-2-366: Technical Standard for Safety in Air Conditioning, Heating, and Cooling Systems

UL 60335-2-366 is a technical standard developed by Underwriters Laboratories (UL) for appliances used in air conditioning, heating, and cooling systems. This standard covers a wide range of products, including heat pumps, chillers, and dehumidifiers.

Key Requirements and Testing Procedures:

1. Electrical Safety: Appliances must be designed and manufactured to minimize the risk of electrical shock, fire, or other injuries. This includes ensuring that all electrical components are properly insulated, grounded, and have appropriate labeling.

2. Fire Prevention: Appliances must be designed and manufactured to prevent fires associated with the high temperatures, heavy loads, and demanding operating conditions. This includes ensuring that all burners, coils, and other heat-producing components are properly insulated, grounded, and have appropriate temperature limits.

3. Performance and Reliability: Appliances must be designed and manufactured to perform consistently and reliably over a wide range of operating conditions. This includes ensuring that all appliances are tested to ensure that they meet the relevant safety standards and perform safely in a variety of environments.

Conclusion:

UL 60335-2-347 and UL 60335-2-366 are two important safety standards for commercial electric cooking and heating appliances. By adhering to the requirements outlined in these standards, manufacturers can demonstrate that their products are reliable, safe, and compliant with industry regulations. As the use of commercial electric cooking and heating appliances continues to grow, it is essential to ensure that these appliances are safe and reliable.