Final answer:
The IEC, IEEE, and UL are organizations responsible for testing and certifying electrical equipment.
Step-by-step explanation:
Organizations responsible for testing and certifying electrical equipment include the International Electrotechnical Commission (IEC), the Institute of Electrical and Electronics Engineers (IEEE), and Underwriters Laboratories (UL). These organizations ensure that electrical equipment meets safety and performance standards before it can be used by consumers or businesses. The IEC develops international standards for electrical and electronic technologies, while the IEEE focuses on promoting advancements in engineering and technology. UL is a global independent safety science company that tests, inspects, and certifies products for meeting safety and performance standards.