In fact, we use Atum brand heat shrink and have conducted tests showing that it is at least as impermeable to water ingress as the cable’s Santoprene jacket. When done properly, a cable splice can be just as weatherproof as the cable jacket itself. Step 6: There may be a small amount of adhesive coming from the heat shrink ends.
Be careful not to overheat the heat shrink, and allow it to cool completely before moving. The adhesive-lined heat shrink will have a glossy look to it once the glue has flowed. Use heat gun and notice the heat shrink forming tightly to the cable and splice. Allow 1” on the outer jacket of cable to ensure a good seal. This will seal the splice from the elements. Step 5: Cover the junction with a polyolefin adhesive-lined heat shrink. Remove heat and be careful not to pull on cable and individual wires until the solder is set. Step 4: Heat the solder sleeves using a heat gun until the solder flows. NOTE: depending on the location of the cable splice, you may decide to slide the outer heat shrink onto the cable before soldering the wires together (see Step 5). Verify that the wires are matched to the correct wires from the sensor (e.g., red-red, black-black, and so on). Step 3: Slide the cable that is to be spliced into the other end of the solder sleeve making sure the tinned ends are inside the solder ring. Step 2: Slide the solder sleeves onto the wires making sure the tinned ends are inside the solder rings. NOTE: tinning the individual lead wire helps to eliminate cold solder joints by cleaning the individual strands and allowing solder to flow more freely. Step 1: Strip outer cable insulation 5/8”, while stripping and tinning the individual wires 1/4". Polyolefin Adhesive-Lined Heat Shrink (size dependent on cable or connector being spliced).Solder Sleeve (size dependent on wire diameter being spliced).Without further comment on an ideal world, the following will provide details on a tried and true method for making a secure, weatherproof splice, should the need arise. In an ideal world, a sensor’s cable will resist aging, repel nature’s most persistent rodents, and always be just long enough to reach any controller. In many instances a sensor’s cable length can be a direct cause or effect of this diversion. As anyone involved in the field installation of sensors can confirm, there are times when a diversion from the original plan must be followed.
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