A group of insulated conductors without the protective jacket is known as _______.

The term that describes a group of insulated conductors that lack a protective jacket is commonly referred to as "hoistway wiring cable." This designation is specific and implies that the conductors are arranged in a manner suitable for installation in the hoistway of an elevator system, which may not necessarily require an additional protective outer layer.

In the context of elevator systems, hoistway wiring is designed to meet specific standards and regulations for safety and performance, given its proximity to operating machinery and other electrical components. This term serves to clarify its intended use and specifications, ensuring it is distinct from other types of wiring that may have different applications or protective features.

Other terms like "multicord," "twisted pair cable," and "shielded wiring" refer to different configurations or types of wiring that may include additional protection or specific arrangements for signal transmission, making them unsuitable for describing a simple grouping of insulated conductors without an outer sheath.