Abstract
Data centers use electrical cables to provide power and transmit data. The jacket and insulation materials of electrical cables are usually made with plastics and could be the major source of combustible materials in data centers. Therefore, understanding the fire and smoke hazard of electrical cables is important for reducing fire loss. For this purpose, we examined six electrical cables including power and data cables using the intermediate-scale parallel panel fire test (PPT), small-scale Fire Propagation Apparatus (FPA) test, and smoke corrosivity test. The PPT results showed that one cable examined in the PPT failed both the fire propagation and smoke generation criteria, and others passed. The FPA test measured the Fire Propagation Index and Smoke Damage Index using the ignition and fire propagation measurements, and the test results demonstrate the consistency with the PPT test results. Three electrical cables were examined for the smoke corrosivity, with two low smoke zero halogen (LSZH) cables showing lower smoke corrosivity and a cable with PVC insulation/jacket showing higher smoke corrosivity. This study shows that the LSZH cables examined herein have good fire and smoke corrosion properties. The fire/smoke corrosivity test methods provide a comprehensive approach to evaluate fire risk of electrical cables.
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