3M QI-18/57-325 Cold Shrink Quick Insulator

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3M QI-18/57-325 Cold Shrink Quick Insulator
Categories:	Polymer; Thermoset; Rubber or Thermoset Elastomer (TSE)
Material Notes:	3M™ Cold Shrink Quick Insulator QI Series are open-ended tubular rubber sleeves with sealing mastic on each end that are factory expanded and assembled onto a removable core. The core is removed by pulling from one end after the QI insulator has been positioned over an inline connector, allowing the ends of the tube to shrink and form a water-resistant seal. Sizing of the core and tube, along with the sealing mastic on each end, provides a broader application range without degrading the seal and insulating characteristics of the EPDM rubber tube. Three diameter sizes will cover a range of 1000 volt or less cable from 8 AWG through 1250 kcmil, copper and aluminum conductors with crimped connectors. Information provided by 3M
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Physical Properties	Original Value	Comments

Water Absorption	1.8 %	7 days @ 90°C

Mechanical Properties	Original Value	Comments
Tensile Strength, Ultimate	1400 psi	ASTM D412-75
Elongation at Break	750 %	ASTM D412-75
300% Modulus	0.480 ksi @Strain 300 %	ASTM D412-75
Tear Strength	26.3 kg(f)/cm	Die C; ASTM D624C-73

Electrical Properties	Original Value	Comments
Dielectric Strength	282 kV/in	7 days @ 90°C in water; ASTM D149-75
	365 kV/in	Original; ASTM D149-75

Descriptive Properties
Appearance	Black

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PMM35147 / 169894

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