4.4.9 Water Submersion.4.4.9.1 Purpose. Determine the ability of sealed connection systems to withstand submersion in water.4.4.9.2 Equipment. Water Tank De-Ionized Water containing 5% NaCl, 0.1 g/L wetting agent and a florescent dye Mega-ohm Meter Temperature Chamber4.4.9.3 Sample Preparation. For block seals, insert and remove the terminal from its cavity twice.4.4.9.3.1 Test Samples. Fully populated mated sealed connector pairs with terminals terminated to thesmallest and largest wires size. Terminated leads shall be a minimum of 500 mm. Three (3) pairs with the largest wire size Four (4) pairs with the smallest wire size Three (3) pairs mixed with the smallest and the largest wire size. Some cavities shall remain unpluggedand the cavities sealed with appropriate design intent cavity plugs, flashed-over cavities, etc.4.4.9.3.2 Number of Test Samples. Ten (10) pairs.4.4.9.4 Procedure.1. Prepare a water submersion test device per Figure 30.2. Place mated connector samples into a thermal chamber and heat soak the samples for a minimum of30 minutes at the maximum Ambient Operating Temperature for the appropriate temperature class.3. Remove the heated test samples from the thermal chamber and immediately immerse the heated testsample into (+23 ± 5) °C de-ionized water to a depth of 100 mm for at least 1 hour.4. With the test samples immersed in the liquid, record any leakage current measurements between eachterminal pair and the electrode at 14 VDC. Also, record the leakage current measurements betweenevery two adjacent terminals pairs.5. At the completion of the test, visually inspect each mated sample pair for any physical degradation,cracking, etc., per Section 3.4 taking special care not to allow any surface moisture to enter the interiorof either connector. Disconnect the mated connectors and carefully inspect the interior of theconnectors for any evidence of moisture ingress as evidenced by residue of the florescent dye.
4.4.9 Water Submersion.<br>4.4.9.1 Purpose. Determine the ability of sealed connection systems to withstand submersion in water.<br>4.4.9.2 Equipment.<br> Water Tank<br> De-Ionized Water containing 5% NaCl, 0.1 g/L wetting agent and a florescent dye<br> Mega-ohm Meter<br> Temperature Chamber<br>4.4.9.3 Sample Preparation. For block seals, insert and remove the terminal from its cavity twice.<br>4.4.9.3.1 Test Samples. Fully populated mated sealed connector pairs with terminals terminated to the<br>smallest and largest wires size. Terminated leads shall be a minimum of 500 mm.<br> Three (3) pairs with the largest wire size<br> Four (4) pairs with the smallest wire size<br> Three (3) pairs mixed with the smallest and the largest wire size. Some cavities shall remain unplugged<br>and the cavities sealed with appropriate design intent cavity plugs, flashed-over cavities, etc.<br>4.4.9.3.2 Number of Test Samples. Ten (10) pairs.<br>4.4.9.4 Procedure.<br>1. Prepare a water submersion test device per Figure 30.<br>2. Place mated connector samples into a thermal chamber and heat soak the samples for a minimum of<br>30 minutes at the maximum Ambient Operating Temperature for the appropriate temperature class.<br>3. Remove the heated test samples from the thermal chamber and immediately immerse the heated test<br>sample into (+23 ± 5) °C de-ionized water to a depth of 100 mm for at least 1 hour.<br>4. With the test samples immersed in the liquid, record any leakage current measurements between each<br>terminal pair and the electrode at 14 VDC. Also, record the leakage current measurements between<br>every two adjacent terminals pairs.<br>5. At the completion of the test, visually inspect each mated sample pair for any physical degradation,<br>cracking, etc., per Section 3.4 taking special care not to allow any surface moisture to enter the interior<br>of either connector. Disconnect the mated connectors and carefully inspect the interior of the<br>connectors for any evidence of moisture ingress as evidenced by residue of the florescent dye.
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