What defines the DIN 47100 color specification system for telecommunication cable cores, and how does its coding scheme vary across different conductor count ranges?

Q: What defines the DIN 47100 color specification system for telecommunication cable cores, and how does its coding scheme vary across different conductor count ranges?   A: The DIN 47100 standard establishes a comprehensive color - coding protocol for identifying individual conductors within telecommunication cables, despite its official withdrawal in 1998. This system remains industrially prevalent due to its structured approach to core differentiation.   The coding framework adapts to conductor quantities through three distinct methodologies:   1–10 core configurations utilize solid - color insulation, with each core assigned a unique hue from a standardized palette (e.g., core 1: white (WH), core 2: brown (BR), core 3: green (GN), progressing through yellow (YW), grey (GR), pink (PK), blue (BL), red (RD), black (BK), and violet (VI) for core 10).   11–44 core implementations employ longitudinal striped insulation to expand the identification range beyond single - color limitations.   45–60 core systems introduce tri - color combinations, where a base color is augmented by secondary and tertiary stripes or printed rings (e.g., core 45: yellow - green - black (YWGN BK), core 46: grey - pink - black (GRPK BK)), enabling precise identification within high - density cable bundles.   This tiered approach, documented in the standard's core - color reference table spanning 1–60 conductors, ensures consistent cable termination and maintenance practices across telecommunication infrastructure projects.