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PVC 100% watertight

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    PVC 100% watertight

    I found this on a set of plans of a new construction that I am bidding "All conduit shown for outdoor work shall be schedule 40 PVC (3/4" minimum) All joints shall be cleaned with an approved solvent prior to gluing to ensure watertight connection. Any conduits found with water in them shall be replaced at the sole expense of the contractor"
    Have you ever seen this before?
    Miguel

    All things, therefore, that you want men to do to you, you also must likewise do to them

    #2
    Originally posted by mtnelectrical View Post
    I found this on a set of plans of a new construction that I am bidding "All conduit shown for outdoor work shall be schedule 40 PVC (3/4" minimum) All joints shall be cleaned with an approved solvent prior to gluing to ensure watertight connection. Any conduits found with water in them shall be replaced at the sole expense of the contractor"
    Have you ever seen this before?
    Pvc will always have moisture in it. The conductors carry heat and any humidity in the air becomes condensate. Walk away


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      #3
      Originally posted by blkmagik21 View Post
      Pvc will always have moisture in it. The conductors carry heat and any humidity in the air becomes condensate. [COLOR=#ff0000]Walk away[/COLOR]
      @mtnelectrical

      Before doing so, at least RFI that on behalf of everyone else in the trade.

      BTW, you might suggest that engineering group look at HDPE conduit if they really want watertight as it is manufactured and sold by the coil or roll (even as cable in conduit) and can be installed without any underground joints.
      [COLOR=RoyalBlue]I will have achieved my life's goal if I die with a smile on my face.[/COLOR]

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        #4
        Originally posted by mtnelectrical View Post
        I found this on a set of plans of a new construction that I am bidding "All conduit shown for outdoor work shall be schedule 40 PVC (3/4" minimum) All joints shall be cleaned with an approved solvent prior to gluing to ensure watertight connection. Any conduits found with water in them shall be replaced at the sole expense of the contractor"
        Have you ever seen this before?
        Someone needs to remind the engineer that it is pvc conduit, not pipe. It has no pressure rating and is not designed to be water tight.

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          #5
          I remember burying PVC one hot humid day a few years ago. Buried on Friday, never rained over the weekend, but on Monday when we pulled conductors through it, the pull rope had some dampness to it - was all condensation that originated within the conduit.
          I live for today, I'm just a day behind.

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            #6
            Originally posted by kwired View Post
            I remember burying PVC one hot humid day a few years ago. Buried on Friday, never rained over the weekend, but on Monday when we pulled conductors through it, the pull rope had some dampness to it - was all condensation that originated within the conduit.
            Reminder to self: Stop relieving self into empty conduits after Friday night benders.....
            85deg. an Sunny today.

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              #7
              I worked at an orange juice plant where they had a refrigerated warehouse the size of a stadium. We installed several runs of conduit from inside the warehouse to outside. Outside was 90+ degrees and humid. We fully intended on blocking outside air flow with sealant, but until we did, water poured out of the pipes like a faucet was turned on.

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                #8
                Originally posted by Coppersmith View Post
                I worked at an orange juice plant where they had a refrigerated warehouse the size of a stadium. We installed several runs of conduit from inside the warehouse to outside. Outside was 90+ degrees and humid. We fully intended on blocking outside air flow with sealant, but until we did, water poured out of the pipes like a faucet was turned on.
                Damn it, so this is why inspectors want ductseal between the meter and the panel? All this time lol


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                  #9
                  Originally posted by blkmagik21 View Post
                  Damn it, so this is why inspectors want ductseal between the meter and the panel? All this time lol


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                  Or to prevent a burning meter from setting the house on fire?

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                    #10
                    Originally posted by GoldDigger View Post
                    Or to prevent a burning meter from setting the house on fire?
                    Or to prevent a burning panel from burning a meter?


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                      #11



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                        #12



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                          #13
                          There is an instance where it is important to make careful primered water tight joints in electrical conduit and that is where you have a conduit sloping downhill into a basement. Multiple times i have seen a steady stream out of a conduit in such situations due to saturated soil and non watertight conduit joints. Unfortunately it is very hard to stop. There is a special foam product made for the purpose that is reputed to work well.
                          Ethan Brush - East West Electric. NY, WA. MA

                          "You can't generalize"

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                            #14
                            Thank you guys for all your responses. I will send a RFI to the engineering dpt. Let's see what happens
                            Miguel

                            All things, therefore, that you want men to do to you, you also must likewise do to them

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                              #15
                              Originally posted by blkmagik21 View Post



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                              What the heck happened there? Maybe some loose lugs on the terminals or those smart meters mystery cases of explotions.

                              Miguel

                              All things, therefore, that you want men to do to you, you also must likewise do to them

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