Electric Cable Construction Parameter and Its Potential to Foresee the Cable Fire Properties.

Area of Science:

• Fire Science
• Materials Science
• Cable Engineering

Background:

• Assessing cable fire performance is critical for safety.
• Existing methods for predicting fire behavior can be complex.
• A simplified, predictive parameter is needed for cable fire safety.

Purpose of the Study:

• To propose and validate a new cable parameter, Omega (Ω), for predicting fire behavior.
• To correlate this parameter with key fire metrics like heat release and smoke production.
• To evaluate its utility in selecting cable samples for fire testing.

Main Methods:

• Development of the Omega (Ω) cable parameter based on material composition and heat transfer.
• Experimental validation using circular cable samples.
• Statistical analysis using Spearman's rank correlation to assess parameter accuracy.

Main Results:

• The proposed Omega (Ω) parameter demonstrated high accuracy in predicting cable fire behavior.
• Strong negative correlations (close to -1) were observed between Ω and total heat release and smoke production.
• The parameter proved effective for circular cables.

Conclusions:

• The Omega (Ω) parameter is a reliable metric for evaluating cable fire performance.
• This parameter can simplify the selection of cable samples for large-scale fire testing.
• Ω offers a promising tool for enhancing cable fire safety assessments.