How to connect SIP-4 2x16 wires to each other?
Hello! In the summer cottage there was a need to transfer the wire connecting the cottage with the support of the power transmission line. But, because Now the length of the wire is not enough, I had to dig an additional pole and use the anchor clamps to pull the old wire from the house and a piece of the new one from the power line support. Between the ends of these pieces made a loop and want to connect in this place. How can I connect these two pieces of SIP-4 2x16 wire without using MJPB insulated sleeves (since there is no manual press to crimp them)? Is it possible, for example, using:
1) clamp branch P4 or P616R NILED;
2) sleeves aluminum with stall bolts AMG 10-35 IEK;
3) Terminal block - 16 mm2, 30 A EKF PROxima.
Maybe there are other options?
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Hello! The first option is just used to connect to the SIP, I would use it. If you decide to use the sleeves - ensure their good contact and moisture protection.
Hello!
Are there any SNIPs of PUE and other documents that say that it is possible to connect (lengthen) SIP? He called the verification and control engineer for clarification in the city distribution networks (something like that is called), he said that there should be no breaks (there should be a solid wire from the shield to the power transmission line support), and if there is a check, they will write me some that prescription (obviously to bridge the gap). Therefore, I ask - is there any document that allows connecting with the help of MJPB sleeves and branch clamps P4 or P616R to which you can refer?
That is, you are offered to replace the entire line in order to increase a dozen meters of SIP?
Let’s do it right now. Do the branch to your home directly with the “Walnut” branch clamps, fasten the clamps to the support with the help of anchor tension clamps. This connection will be similar to those that they connect to power lines at home. If the span is too long, do a pipe job. Another option is to talk about installing a shield on a support and lay an armored cable underground - but this is expensive and has little practical meaning.
Hello!
If by clamps “nut” you mean - P645 (and not U734M which are more often called that), then on the power line support, from which there is a branch to my section, they connected the main line and my 9-meter branch SIP 4 2x16. This piece is pulled with an anchor clamp to an intermediate pole, 3.5 meters high, and to the same post another piece is pulled with a second tension anchor clamp 25 meters from the shield near the house. If I understand you correctly, you suggest connecting these two ends together on an intermediate column using the same P645. I have no doubt in your words that “it is necessary” to do this (I am inclined to this option).I just want to find information - is there somewhere in official documents, instructions or elsewhere this connection method, as allowed for building up the wire, in order to protect myself in case of any questions from the reviewers (as I wrote above, my the opinion and opinion of the inspectors from the City Electric Networks do not coincide). And, as you rightly noted, do not pull the whole line anew over 9 meters. Which, in addition to material and time costs, entails a violation of the seal at the entrance to the shield, and the attendant bureaucratic moments (several times during working hours to go to the HERS - write statements, call the sealant, take leave from work again when the sealant arrives, then, obviously, call a specialist from the air line service to accept the newly drawn line, etc., etc.).
The conclusion is:
Connection using P645, but I need information from off. sources about the possibility of such a connection method for my case. Does it exist somewhere or not?
Any connections should be fixed on the support with anchors. Perhaps you incorrectly explained the task to the specialist of the city networks. The connection should not be made in air, as this may affect the load-bearing characteristics of the cable and the line strength at the connection point will be lower.
I will repeat my suggestion to you:
“At the SUPPORT (NOT THE INTERMEDIATE - THERE IS A POST FROM WHERE YOU GO TO THE YARD), make the connection with a branch clamp, replace your 9 meter piece with an ONE piece that needs length and that's it.”
They demand this from you.
I could not find regulatory documents allowing or prohibiting the connection. This information is written in the specification for the connection, most likely.
But in the EMP there is clause 2.4.15.
“Tensile joints must have a mechanical strength of at least 90% of the tensile strength of the wire.” Even without looking at the documentation, it becomes clear that the proposed options do not provide 90% of the strength of SIP ...
But the MJPB sleeves are specially designed to connect the above-mentioned conductors. You should not look here how to get out of the situation and save money, but invite or go yourself (rather than call) to the network engineer and explain the situation. Perhaps he will allow the connection to be made on an intermediate support.