From Pentair's Thermal Building & Industrial Heat Tracing Solutions unit, this video reviews proper shielded twisted pair termination procedures for the company's System 1850 fire alarm and voice communication MI [mineral insulated] cable.
Shielded twisted pair copper sheath MI communication cables are classified by UL and ULC as 2-hour fire resistive, and improper termination of the cable can jeopardize its integrity and reliabilty, notes Pentair. The video unpacks the company's Pyrotenax Pyropak termination kit in detail.
View/Download Pentair's Commercial MI Wiring Systems Installation Manual