Is Two Inches of Concrete Still Enough? Two-Hour Fire-Rated Circuits with Pyrotenax MI Cable

By |2026-10-16T14:02:16+00:00October 16th, 2026|Wire & Cable|

Encasing wire in 2 inches of concrete dates back to one-hour codes. Here's what two-hour protection for critical circuits looks like now, with Pyrotenax MI cable.

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