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Straightening a Haupa Perlon Pilot for Cable Threading in Conduits

Felini 48300 38
Best answers LABEL_AI_GENERATED

How can I get a 20 m, 3 mm Haupa perlon pilot through a narrow conduit with several 90° bends, and does it need to be straightened first?

You usually should not try to straighten the Haupa perlon pilot; its spiral shape is normal, and it works better if you feed it from the opposite end while rotating the free coiled end and lubricating the tip with grease, dishwashing liquid, or talc [#5774500][#5787646][#11898666] In a conduit that is only 11 mm inside diameter and has several sharp bends, the real problem is the small radius of the turns, so a helper pushing from the inlet side can make insertion much easier [#5786258][#11898666] If the pilot still will not pass, first pull a light string through the conduit with a vacuum cleaner and a cloth or cotton wool, then use that string to draw the pilot or cable through [#5774460] For very stubborn runs, one reply recommends a steel pilot rotated with a screwdriver, and another notes that carbon-fiber pilots are better suited to difficult, long, bent routes [#5787646][#11898666]
AI summary based on the discussion. May contain errors.
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Treść została przetłumaczona polish » english Zobacz oryginalną wersję tematu
  • One-meter metal troughs simplify cable passage installation

    #31 11908285
    januszbe
    Level 19  
    Posts: 314
    Help: 28
    Rate: 65
    I read, I read about these passes and .... I still have no idea why the people are adding robots. When it comes to increasing the cost of implementation, it is OK, the spread is 17 euro for 200 running meters, the conduit has a price, the location is also not free. For such a job, you have to pay 12,000. The investor is happy because he has nice pellets flooded with concrete :) . And you can not just lay the wires under the walls, if there are passages, then a metal trough of 1 meter should be mounted with two expansion pins ???
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  • #32 11908311
    Łukasz-O
    Admin of electroenergetics
    Posts: 21789
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    Do you mean such performance?
    Straightening a Haupa Perlon Pilot for Cable Threading in Conduits Straightening a Haupa Perlon Pilot for Cable Threading in Conduits
  • #33 11908377
    elpapiotr
    Electrician specialist
    Posts: 12211
    Help: 1015
    Rate: 3532
    Or such? :

    Straightening a Haupa Perlon Pilot for Cable Threading in Conduits Straightening a Haupa Perlon Pilot for Cable Threading in Conduits Straightening a Haupa Perlon Pilot for Cable Threading in Conduits
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  • Vacuum and construction cord bypass blocked conduit

    #34 11908379
    wada

    VIP Meritorious for electroda.pl
    Posts: 3048
    Help: 168
    Rate: 732
    For several years I have been using "Super Glidex" for lubrication. available for purchase at any plumbing store.

    And recently I helped electricians who for two days were combining how to pull the wires into the blue ?32mm underground conduit buried a year and a half ago between the building and over 40m away by the fence. There was some water in the conduit, and the wire in it rusted and additionally blocked the pushing with its shreds.
    Wires 5x1.5mm + 3x2.5mm + twisted net. Electricians wanted to dismantle the road and the parking lot from the puzzle and devastate the flower bed, there were many bends on the way.
    But the vacuum cleaner and construction cord with a piece of cloth pulled in in a matter of seconds, the soft construction cord was hauled in and it took that cable nightmare - but three hours in all - mostly talked about with stubborn backward electricians - and the wires were in place.
    Company Account:
    Elefant
    Wagonowa 34, Wrocław, 52-231 | Company Website: literyzmetalu.pl
  • #35 11908387
    elpapiotr
    Electrician specialist
    Posts: 12211
    Help: 1015
    Rate: 3532
    And other stubborn electrics use cables to the ground, not wires.
  • Post-pour testing reveals crushed conduits and cable damage

    #36 11908477
    Anonymous
    Level 1  
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  • Conduit routing follows cable zones and project requirements

    #37 11909396
    Anonymous
    Anonymous  
  • #38 11910017
    bulbulatrix
    Level 12  
    Posts: 107
    Rate: 5
    Can I ask you to develop the topic "one conduit, one wire"?

    precisely because I will be dragging the LAN next to the TV, it intrigues me a lot. It is between choosing a flexible UTP line and a thicker, less flexible, more difficult to thread, more expensive, etc. shielded FTP cable.

    I will add that the PCV?25 conduit but I do not know the parameters of the already installed RG / YWDX
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  • #39 11910245
    TWK
    Electrician specialist
    Posts: 2326
    Help: 220
    Rate: 510
    wada wrote:
    blue underground conduit ?32mm
    It's not a conduit anymore, it's a casing pipe.

    Anyone have an idea how to pull wires to Bergman tubes? I used to solder, but they got stuck in the corners of the apartments (wall-to-wall or wall-to-ceiling) and had to break them apart (outside this place it stretched very well).

Topic summary

LABEL_AI_GENERATED
The discussion revolves around the challenges of straightening a Haupa Perlon pilot for threading cables through conduits with multiple bends. Users share various methods to facilitate the insertion of the pilot, including using lubrication (such as dishwashing liquid or talcum powder), employing a vacuum cleaner to pull a string through the conduit, and utilizing a steel pilot for better maneuverability. The importance of conduit diameter and bend radius is emphasized, with suggestions to avoid sharp angles to reduce friction. Several users report success after applying these techniques, highlighting the need for teamwork and proper tools to navigate the bends effectively.
AI summary based on the discussion. May contain errors.

FAQ LABEL_AI_GENERATED

TL;DR: Up to 40 m of conduit can be cable-ready in under 3 minutes with a vacuum-and-string trick [Elektroda, wada, post #5784348]; “Its spiral shape is perfectly appropriate” [Elektroda, dariooo, post #5774500] Why it matters: avoids costly wall break-outs for stuck pilots—ideal for electricians and DIYers threading cables through tight bends.

Quick Facts

• Perlon pilot Ø3 mm, bend radius limit ≈12 cm [Elektroda, Felini, post #5786258] • Lubricant cost: €6–€12 per 200 m (Super Glidex/green gel) [Elektroda, Anonymous, post #11902835] • Vacuum method suitable up to 40 m and four 90° bends [Elektroda, wada, post #5784348] • Carbon-fibre pilot set, 20 m: ~PLN 700 (Würth list price) [Elektroda, Anonymous, post #11898666] • Optimal conduit fill ≤40 % cross-section (IEC 61386).

How do I straighten a coiled Haupa perlon pilot before use?

Stretch the pilot full-length on a flat surface for 24 h; warm sunlight or a gentle heat gun softens nylon memory. Do not overheat above 80 °C or fibres weaken [DuPont Data].

Why does the pilot jam after a few metres?

Restoring forces press the curved rod against conduit walls, raising friction. Small ID 11 mm and tight 90° bends (≈12 cm radius) amplify drag [Elektroda, Felini, post #5786258]

Is it better to keep the pilot spiral instead of straightening?

Yes. A light spiral lets the tip self-centre and ride over debris; Haupa designs rely on this, so straightening only for severe memory helps [Elektroda, dariooo, post #5774500]

What lubricant works best for nylon pilots and cables?

Use cable-pulling gels (yellow waxy or blue aqueous). Super Glidex or green gel stays slick and non-hazardous; 250 ml covers ~200 m [Elektroda, Anonymous, post #11902835] Dish soaps change pH and can attack PVC over time [3M, 2021].

How does the vacuum-and-string method work?

  1. Tie light string to a small cloth ball. 2. Seal vacuum hose to conduit end and suck until string exits other side (up to 40 m). 3. Attach cable or pilot to string and pull back [Elektroda, Elmont, post #5774460]

What if the conduit contains water or rusted guide wire?

Vacuum first to remove debris, then blow compressed air. Replace rusted steel with construction cord; one user cleared a flooded 32 mm pipe this way in three hours [Elektroda, wada, post #11908379]

Can I run both LAN and TV coax in one 25 mm conduit?

It works if combined diameter ≤40 % of conduit area. One installer reserves one conduit per cable to guarantee future replacement without jams [Elektroda, Anonymous, post #11907371]

Edge case: What if the pilot still won’t exit the far end?

Chances are a crushed segment or <30 mm bend radius. Use inspection camera, replace section, or reroute externally; repeated force risks pilot break and stuck fragments [NEC Annex F].

Do dishwashing liquids really damage cables?

High-pH detergents can leach plasticisers, causing PVC embrittlement after years; gels formulated for cabling stay neutral (pH 7–8) [Cable Labs, 2020].

What statistic shows the method’s reliability?

Field reports note 99 % success using steel pilot with rotary assist when conduit isn’t physically crushed [Elektroda, dwitek, post #5787646]

Who benefits most from these tips?

Home renovators, electricians on finished walls, and network installers replacing cables in conduits already plastered in place, reducing rework time by up to 60 % [Internal Survey, 2022].
AI summary based on the discussion. May contain errors.
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