UL 38-2008 pdf download.Manual Signaling Boxes for Fire Alarm Systems. 6.6 Strain relief 6.6.1 A strain-relief means shall be provided for the field supply leads and for all internally connected wires subject to movement during
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UL 38-2008 pdf download.Manual Signaling Boxes for Fire Alarm Systems. 6.6 Strain relief 6.6.1 A strain-relief means shall be provided for the field supply leads and for all internally connected wires subject to movement during
Read more