Domestic electric water heaters must comply with which regulations?

Domestic electric water heaters are required to comply with specific safety standards set by Underwriters Laboratories (UL). The standards governing these appliances are UL 174 and UL 1453.

UL 174 is the standard specifically focused on safety requirements for electric water heaters, ensuring that these devices are designed and manufactured to reduce risks of fire and electric shock. UL 1453 applies to the performance and safety of electric water heaters, particularly those intended for use in residential environments.

Choosing option A reflects an understanding of the regulatory framework that pertains to electric water heaters, ensuring that they meet strict safety standards.

The other options reference standards that do not cover domestic electric water heaters, as they pertain to different types of electrical equipment or appliances that fall outside the scope of water heater regulations. Understanding the correct regulatory references is crucial for compliance and safety in the installation and utilization of electric water heating systems.