PANDUIT: Electrical Full Line

For technical assistance in the U.S., call 866-405-6654 (outside the U.S., see inside back cover for directory) ELECTRICAL SOLUTIONS C3.19 B2. Cable Accessories C1. Wiring Duct C3. Abrasion Protection C4. Cable Management D1. Terminals D2. Power Connectors E1. Labeling Systems E2. Labels E3. Pre-Printed & Write-On Markers F. Index B3. Stainless Steel Ties C2. Surface Raceway E5. Lockout/ Tagout & Safety Solutions B1. Cable Ties A. System Overview D3. Grounding Connectors E4. Permanent Identification Flammability Tests and Classification • A number of test procedures have been developed which can be used for the evaluation and comparison of various materials to support combustion • Review the following classifications to find which category is designed to suit your abrasion and protection applications Test samples of material, with dimension 125 ± 5mm by 13.0 ± 5mm and provided in the minimum and maximum thickness of the intended end use product, are tested in an unconditioned (as manufactured) state and in a conditioned state (7 days at 168F°, 75°C). The test requires the placement of a precisely controlled flame under a vertically supported specimen for a 10 second period. The flame is removed and the duration of flaming is recorded. If the flame extinguishes, the specimen is immediately subjected to a second 10 second ignition period. Duration of flaming is again recorded. A piece of 100% cotton is placed under the specimen. Also observed and documented is if the sample drips flaming particles that ignite the cotton indicator below. MATERIALS CLASSIFIED UL 94 HB • Specimens shall have a maximum burn rate of <1.5 in./min over 3 inches of thickness of .120 inches to .5 inches • Specimens shall have a maximum burn rate of <30 in./min over 3 inches for a thickness less than .120 inches UL 224 VERTICAL WIRE FLAME TEST Samples of fully recovered tubing are placed over a length of fine spring steel music wire. The test requires the precise placement of a controlled flame that contacts the heat shrink tubing. The flame is applied in five 15 second intervals with a time period between applications. If the flame extinguishes immediately after the first flame removal, subsequent flame applications are made to the tubing. Duration of specimen flaming is noted. A piece of surgical cotton is placed under the specimen. If a flaming or glowing piece of tubing drips and ignites the cotton, this is also noted. MATERIALS CLASSIFIED AS VW-1 SHALL: • Not flame or glow longer than 60 seconds following any of the five applications of the flame • Not ignite or damage more than 25% of kraft paper flag that is placed around the top of the tubing • Not have any specimens which drip flaming particles and ignite the surgical cotton located 9 1/2 inches below the test specimen Abrasion Protection Products Flammability Tests and Classifications Criteria Conditions V-0 V-1 V-2 Afterflame time for each individual specimen t 1 or t 2 _<10s _<30s _<30s Total Afterflame time for any condition set (t 1 plus t 2 for the 5 specimens) _<50s _<250s _<250s Afterflame plus afterglow time for each individual specimen after the second flame application (t 2 + t 3 ) _<30s _<60s _<60s Afterflame or afterglow of any specimen up to the holding clamp No No No Cotton indicator ignited by flaming particles or drops No No Yes Materials Classification UL 94 Vertical Burning Test t 1 Afterflame time after first flame application t 2 Afterflame time after second flame application t 3 Afterglow time after second flame application