Where is the only location splicing of connector tips can be conducted?

The only location where splicing of connector tips can be conducted is in vaults. This is primarily due to the controlled environment that vaults provide, which is essential for ensuring the integrity and reliability of the splicing process. Vaults typically offer protection from environmental factors such as moisture, dirt, and temperature fluctuations, which can adversely affect the splicing materials and methods used. Furthermore, vaults often have adequate space to work safely and administer proper techniques, which is critical in maintaining the quality of the splice.

In contrast, splicing in other locations, such as manholes or trenches, may expose the connections to the elements, making it less than ideal. Work conducted in trenches is generally more prone to contamination and is not as easily secured as in vaults. Manholes, while sometimes used for such tasks, can present challenges such as exposure to water and other hazards that make vaults the preferred choice for splicing connector tips.