TWISTED-PAIR CABLING INSTALLATION PRACTICES
- To avoid stretching, pulling tension should not exceed 110N (25 lbƒ) for 4-pair cables.
- Installed bend radii shall not exceed:
- 4 times the cable diameter for horizontal UTP cables under no load conditions.
- 8 times the cable diameter for horizontal ScTP cables.
- 10 times the cable diameter for multi-pair backbone twisted-pair cables under no load conditions.
- Horizontal cables should be used with connecting hardware and patch cords (or jumpers) of the same performance category or higher.
- Avoid cable stress, as caused by:
- cable twist during pulling or installation
- tension in suspended cable runs
- tightly cinched cable ties or staples
- tight bend radii
- Important Note: Installed twisted-pair cabling shall be classified by the least performing component in the link.
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