Mike Dolt Enterprises
Mike Dolt Enterprises
User: fmiller01, Location: Connecticut
Asked on: Tuesday, April 5, 2011 at 3:15 pm EDT
Answered on: Tuesday, May 14, 2024 at 3:47 am EDT
Question: I'm looking at a site where type CMP Cat 6 communications cable had been run into a communications room. An HVAC contractor was filling the system running overhead with plain water when an estimated 2-3 gallons of water was spilled onto the pile of un-terminated cables lying on the floor below. The cables were discovered approximately 15 minutes later, and dried off and left hanging from a rack. Being plenum cable, the tinned copper stranded conductors are insulated in polyethylene and bundled in pairs in a flame-retardant PVC jacket. The question is whether this event was sufficient to damage these cables? I wouldn't think so, but need something definitive one way or the other. I tried calling the manufacturer & got some guy who was completely clueless.
Assessment of Damage Risk
According to industry standards and manufacturer guidelines for CMP (Communications Multipurpose Cable) Category 6 cables, exposure to water is generally not considered a significant threat to cable performance. However, the following factors should be considered:
Water Exposure
The amount of water spilled (2-3 gallons) is relatively minor and unlikely to cause extensive damage to the insulation.
Duration
The cables were discovered and dried off within 15 minutes, which is a relatively short period of time for water penetration to occur.
Cable Construction
CMP Cat 6 cables are designed with a flame-retardant PVC jacket and polyethylene insulation, which are both resistant to moisture. The tinned copper conductors also provide protection against corrosion.
Recommended Actions
Based on the information provided, it is unlikely that the water exposure has caused significant damage to the CMP Cat 6 cables. However, the following steps are recommended for confirmation:
Visual Inspection
Examine the cables carefully for any signs of water penetration or damage, such as swelling, discoloration, or corrosion.
Electrical Testing
Perform basic electrical tests, such as continuity and insulation resistance, to ensure that the cables are still functional.
Drying
If there are any concerns about residual moisture, allow the cables to dry thoroughly before terminating them.
Conclusion:
While water exposure can affect the performance of certain types of electrical cables, it is generally not a significant concern for CMP Cat 6 cables due to their moisture-resistant construction and short exposure time. The recommended actions above will help confirm whether the cables have been damaged. If any damage is found, the affected cables should be replaced. Flag for review