Underground communication cables multi 2 pair 20 pair 50 pair telephone cable

Product Introduction

Indoor telephone cables from 3 to 100 pairs, 0.51 mm diameter copper conductors, solid PE insulation. The pairs are twisted into units of 25 pairs, and these are twisted together to form the core, which is protected with a gray PVC sheath. These cables are used as distribution cables within buildings.

Features

Operating voltage: 250 V

Test voltage: 1000 V

Conductor resistance: 97.8 Ω / km

Mutual capacitance:

Capacitance imbalance:

Insulation resistance > 500 M.Ω x km

Temperature range -30°C … +70°C

Min. bending radius 7.5 x cable diameter

Applications

These tinned indoor telephone cables are used in subscriber systems and switchboards. These cables have halogen-free and flame-retardant insulation and sheathing.