For those researching the standard, here is a breakdown of the critical data points defined within UL 183:
How to Access UL 183 (Standard for Manufactured Wiring Systems) – Legally & Affordably ul 183 free download
If you need many UL standards, a subscription (like UL Standards Online) offers unlimited access for a flat fee. For those researching the standard, here is a
UL 183 is a critical safety standard in the North American electrical industry. It covers single- and multi-conductor wires and cables with extruded insulation, intended for use in accordance with the National Electrical Code (NEC) and the Canadian Electrical Code (CEC). This includes common wire types like THHN, THWN, XHHW, and machine tool wiring. This includes common wire types like THHN, THWN,
UL 183 may be referenced in NFPA 70 (NEC). While not identical, the NEC often includes mandatory requirements from UL standards. You can access NFPA 70 for free at nfpa.org.