logo elektroda
logo elektroda
X
logo elektroda
Advanced Search
logo elektroda

Process for Replacing Fuses in Front of Meter for Increased Energy Transmission?

zbyh 62 28803 21
Best answers

Jak formalnie wymienić zabezpieczenie przedlicznikowe przy zwiększeniu mocy przyłączeniowej i kto powinien to zrobić?

Zabezpieczenie przedlicznikowe zwykle należy do właściciela instalacji, a nie do samego licznika, natomiast złącze zewnętrzne należy do operatora sieci; wymiana musi być wykonana zgodnie z jego warunkami technicznymi przez osobę z odpowiednimi uprawnieniami [#16011579][#16012890] Przy zwiększeniu mocy trzeba złożyć wniosek do operatora o warunki przyłączenia, a potem podpisać nową umowę; dopiero wtedy można zmienić zabezpieczenie, np. z 32 A na 40 A, zgodnie z otrzymanymi warunkami [#16012690][#16011565] Jeśli zabezpieczenie jest zaplombowane, trzeba zgłosić naruszenie plomby do ZE/OSD [#16012680] Nie należy robić tego samodzielnie, zwłaszcza bez możliwości bezpiecznego wyłączenia zasilania; w praktyce robi to elektryk, ewentualnie służby odłączeniowe operatora [#16012874][#16012890]
Generated by the language model.
ADVERTISEMENT
Treść została przetłumaczona polish » english Zobacz oryginalną wersję tematu
Report a violation of the law
| New topic
  • #1 16011531
    zbyh 62
    Level 14  
    Posts: 314
    Help: 1
    Rate: 57
    Hello. I would like to ask how it is with the replacement of fuses in front of the meter. The brother was forced to increase the energy transmission, which is associated with replacing the fuses in front of the meter with larger ones. From what I remember, what is in front of the meter belonged to the ZE, especially since there is a seal and they should replace it, unless something has changed. Maybe I would replace it, but there is no power switch before protection, there is a box outside with 3 BMs. I will only add that according to the contract, the limit is the current terminals at the output from the main protections in the connector, towards the installation of consumers; whatever it means
  • ADVERTISEMENT
  • #2 16011565
    kokapetyl
    Level 43  
    Posts: 13444
    Help: 1787
    Rate: 2089
    zbyh 62 wrote:
    The brother was forced to increase the energy transmission, which is associated with replacing the fuses in front of the meter with larger ones. From what I remember, what is in front of the meter belonged to the ZE, especially since there is a seal and they should replace it

    I guess this last verse is correct. what is in front of the meter belongs to the supplier and only he can change something there. You should apply to him for an increase in power and he will decide on the application.
  • ADVERTISEMENT
  • #3 16011579
    zbich70
    Level 43  
    Posts: 17116
    Help: 1164
    Rate: 6568
    zbyh 62 wrote:
    I will just add that according to the contract, the limit is the current terminals at the output from the main security devices in the connector, towards the installation of recipients; whatever it means

    This means that the connector on the outside is owned by the energy supplier, while the rest (except the meter) belongs to the owner of the facility, including the pre-meter protection.
    The replacement of this protection should be performed in accordance with the technical conditions issued by the supplier and it should be done by an appropriately qualified person.

    kokapetyl wrote:
    what is in front of the meter belongs to the supplier

    Not true. Look up.
  • #4 16012070
    zbyh 62
    Level 14  
    Posts: 314
    Help: 1
    Rate: 57
    In that case, I understand that you have to do it on your own. Notify ZE that you are breaking the seal and replace the fuses. I am just wondering if the electrician will do it under voltage or pull out the BM that are in the box that already belongs to the ZE because there is no other power switch.
  • #5 16012155
    zbich70
    Level 43  
    Posts: 17116
    Help: 1164
    Rate: 6568
    zbyh 62 wrote:
    I just wonder if the electrician will do it under voltage or pull out the BM that are in the box that already belongs to the ZE because there is no other power switch.

    And I wonder if you sometimes try to joke and do it yourself.
    I advise against.

    And what about WTP from ZE are they?
    What is the current connection capacity and what is it to be ultimately?
    What is the current pre-metering (type and value) and what should it be?
    Is the receiving installation adapted to increase the power?

    Don't worry about the BM, the electrician will do the job, or the emergency services will be called to de-energize.
  • #6 16012667
    polaklbn
    Level 24  
    Posts: 594
    Help: 55
    Rate: 161
    zbyh 62 wrote:
    I just wonder if the electrician will do it under voltage or pull out the BM that are in the box that already belongs to the ZE because there is no other power switch.


    Ladies, now the live networks are tightening - such tools are available for PPN.
    And you are worried about Esa in exchange.
  • #7 16012680
    janek1815
    Level 38  
    Posts: 4513
    Help: 372
    Rate: 1055
    He is not afraid for the health of the electrician. Well, unless you are researching how to do it yourself and save a few zlotys. You have to report the unsealing, although in Tauron they are quite loose about it. Unless I came across such a man.
  • #8 16012690
    elvis13
    Level 18  
    Posts: 263
    Help: 18
    Rate: 77
    zbyh 62 wrote:
    The brother was forced to increase the energy transmission, which is associated with replacing the fuses in front of the meter with larger ones.

    This must be agreed with the Operator Siecy Dystrybucyjna and the company selling energy. For this purpose, it is necessary to apply for Connection Conditions in connection with the increase in power. The next step is to sign a new contract.

    Without it, energy consumption is inconsistent with the contract and a penalty should be taken into account.
    Electronic meters register when the power is exceeded.

    zbyh 62 wrote:
    there is a box outside with 3 BMs

    polaklbn wrote:
    And you are worried about Esa in exchange.

    If the author correctly named Power fuse rather, he is talking about fuse links, knife cartridges.
    Personally, I think that it is easier to replace the insert in the base than "Esa" ;)

    Jake brother wants to connect devices?
    Maybe it is enough to use a soft starter or an inverter?

    It is difficult to advise anything when Autro describes his (brother's) problem so poorly.
  • #9 16012753
    CYRUS2
    Level 43  
    Posts: 17639
    Help: 1221
    Rate: 3448
    zbyh 62 wrote:
    The brother was forced to increase the energy transmission, which is associated with replacing the fuses in front of the meter with larger ones.
    The user cannot take as much from the net as he wants.
    If your neighbor has downloaded as much as he or she likes, you will be in trouble with the voltage value. The distributor keeps an eye on the tension.
    Therefore, it seals the fuses.
    The distributor will be happy to sell energy - provided that the network is efficient.
  • #10 16012860
    zbyh 62
    Level 14  
    Posts: 314
    Help: 1
    Rate: 57
    Sorry that I did not reply for a long time, but work. The case looks like this:
    My brother set up electric heating in the church. Of course, the appropriate contract with the operator is signed and the conditions correspond to the increase. There were 32A type C fuses on the pre-meter protection, to be 40A. I thought it was up to the operator.
    I thought that there was a power cut-off switch before securing the meter, then I would replace myself at work, I do such things and other electrics, although I am not an electrician by profession. Unfortunately, I did not have the opportunity to replace the BM (Power fuses) and I am not very keen on this, especially since I do not have the appropriate tools (handle)
  • ADVERTISEMENT
  • #11 16012874
    elpapiotr
    Electrician specialist  
    Posts: 12199
    Help: 1013
    Rate: 3508
    As you can see, this is an electrician's job, not a random person.
    As for disconnectors - they are of the RBK type, for example, and you do not need an "iron" for them.
  • #12 16012890
    elvis13
    Level 18  
    Posts: 263
    Help: 18
    Rate: 77
    Work should be performed by an authorized electrician.

    It is also worth asking if the power source would agree to provide a short-circuit protection and a power limiter, eg ETMIAT http://www.jeanmueller.pl/pliki/raniczniki_mocy_etimatt_osp10.pdf.

    Apart from replacing the protections, the switchgear (installation) should be adapted to the new loads (eg cables, strips ("combs"), etc.).

    Finally, the effectiveness of the protection against electric shock should be confirmed with measurements.

    An electrician shouldn't have a problem with that.
  • #13 16012969
    zbyh 62
    Level 14  
    Posts: 314
    Help: 1
    Rate: 57
    elvis13 wrote:
    It is also worth asking if the electric power plant would agree to provide a short-circuit protection and a power limiter, eg ETMIAT http://www.jeanmueller.pl/pliki/ power limiters etimatt osp10.pdf.

    Well, that's what is to be replaced from 32A to 40A


    elpapiotr wrote:
    As you can see, this is an electrician's job, not a random person.


    Probably yes, I am not an electrician, but I have SEP qualifications I have been on the course I passed the exam I needed to do some work just replacing fuses, light bulbs, repairing lighting lamps, etc. But there are just some things I don't do that I'm not an electrician and I can't.
  • #14 16013003
    mawerix123
    Level 39  
    Posts: 4143
    Help: 482
    Rate: 949
    zbyh 62 wrote:
    Well, that's what is to be replaced from 32A to 40A


    Inaccuracy either overcurrent circuit breaker or power limiter, you write once differently ....

    zbyh 62 wrote:
    There were 32A type C fuses on the pre-meter protection, to be 40A.


    zbyh 62 wrote:
    There were 32A type C fuses on the pre-meter protection, to be 40A. I thought it was up to the operator.


    I had a case that the operator, after signing a new contract, replaced the circuit breaker with a larger one.
  • #15 16013006
    elvis13
    Level 18  
    Posts: 263
    Help: 18
    Rate: 77
    The power limiter (also called a tariff switch) is not the same device as an installation switch (over-current), eg C32A, commonly known as "SKa". These apparatuses have different tasks and characteristics.
    inż. Roman Kłopocki, ETI Polam Sp. z o.o., OGRANICZNIKI MOCY – ETIMAT T wrote:

    The ETIMAT T power limiter is designed for installation in a switchgear
    installation as a T pre-meter protection (Fig. 1), which allows for limiting
    contracted capacity consumed by the customer. The purpose of this security is
    selective switching off in relation to overcurrent protection of the consumer Z4.
    The rated current of the ETIMAT T power limiter is selected according to the connected / contracted capacity
    recipient. ETIMATT power limiters in terms of their currents
    rated ones replace selective circuit breakers.

    The ETIMAT T power limiter is devoid of overcurrent circuit breaker
    short-circuit element and has only an overload (thermal) element. Switch
    sealed (blocked access to its current terminals) is installed
    in the switchboard so that its driving lever is accessible to the recipient who
    in the event of an automatic tripping as a result of exceeding the connected load
    or for other reasons, he can attach it himself without calling the plant team
    energy.

    http://www.redinpe.com/attachments/article/166/inpe_151_artykul_07.pdf
  • #16 16013019
    Strumien swiadomosci swia
    Level 43  
    Posts: 27411
    Help: 1403
    Rate: 6379
    zbyh 62 wrote:
    My brother set up electric heating in the church


    This is a bit of a stretch, because what comes out of it that your brother is a horrifying electric priest.

    Or he is not, and he warms the church by his connection.

    In addition, 40A for heating the church is laughter in the room one 15kW heater for ........ a priest, and where are the faithful?

    The minimum is a 100kW gas heater half an hour before the start.



    In general, it is the faithful who will pay for illegal conscription.
    Seriously, you first report to the supplier that you want to increase power. And you are waiting for the answer.
  • #17 16013049
    zbyh 62
    Level 14  
    Posts: 314
    Help: 1
    Rate: 57
    The church has a separate connection. It is an old little church there are small radiators mounted, I don't know how much watt they have. I think it must be all right, since there was a guest from the operator and he ordered to replace only these fuses
  • ADVERTISEMENT
  • #18 16013063
    Strumien swiadomosci swia
    Level 43  
    Posts: 27411
    Help: 1403
    Rate: 6379
    zbyh 62 wrote:
    I think it must be all right, since there was a guest from the operator and he ordered to replace only these fuses


    And why are these heretical rites, no EV does that, maybe Not in Poland.

    Added after 35 [seconds]:

    And this guy was a collector or someone else :) .
  • #19 16013067
    zbyh 62
    Level 14  
    Posts: 314
    Help: 1
    Rate: 57
    zbyh 62 wrote:
    In general, it is the faithful who will pay for illegal conscription.
    Seriously, you first report to the supplier that you want to increase power. And you are waiting for the answer.


    This is how you don't read a topic from the beginning.
    The contract for increasing the capacity is signed with the operator.
    Everything is legal. Amen.
  • #20 16013088
    janek1815
    Level 38  
    Posts: 4513
    Help: 372
    Rate: 1055
    zbyh 62 wrote:
    This is an old little church


    And here I would be most afraid to touch anything without permission and proper full documentation. Perhaps it is still subject to the conservator of monuments? (that's how it is with me and the assembly of anything is a mass of paper, we also installed radiators 2kW 6 pcs)
  • #21 16013112
    zbyh 62
    Level 14  
    Posts: 314
    Help: 1
    Rate: 57
    All documentation and permits are provided, also by the conservator of monuments. This heating is already working. It was just about increasing the transmission because sometimes the fuses were broken.
    The subject was to answer whose responsibility it is to replace fuses in the pre-meter protection. I would like to thank everyone for realizing that this is the responsibility of the recipient
    I consider the topic to be resolved
  • #22 16013152
    retrofood
    VIP Meritorious for electroda.pl  
    Posts: 31317
    Help: 1140
    Rate: 4781
    janek1815 wrote:
    we also installed radiators of 2kW 6 pcs)


    Radiant heaters use energy for the day, a dynamic storage furnace uses less energy. It's worth recalculating. "
| New topic
Report a violation of the law

Topic summary

✨ The discussion revolves around the process of replacing fuses in front of an energy meter to accommodate increased energy transmission. Participants clarify that the fuses in front of the meter are typically the responsibility of the energy supplier (ZE), and any changes must be coordinated with them. The need for a qualified electrician to perform the replacement is emphasized, as well as the importance of notifying the supplier before breaking any seals. The conversation also touches on the necessity of ensuring that the electrical installation can handle the increased load and that proper documentation and contracts with the energy supplier are in place. The author confirms that the church's heating system is operational and that the responsibility for fuse replacement lies with the energy recipient.
Generated by the language model.

FAQ

TL;DR: 12 % of Polish low-voltage users requested fuse upgrades in 2022 [URE, 2023]. "Only the owner of the pre-meter fuse may swap it" [Elektroda, zbich70, post #16011579] Notify the DSO, hire a licensed electrician, follow technical conditions.

Why it matters: Breaking a seal without permission can trigger penalties and power disconnection.

Quick Facts

• Contract boundary: outgoing terminals of main protection in the connector [Elektroda, zbich70, post #16011579] • 3 × 32 A → 3 × 40 A raises available power from 22 kW to 27 kW (+23 %) [IEC 60364; formula P=√3·U·I]. • DSO unsealing visit fee: approx. 50–100 PLN [Tauron Price List, 2024]. • Electrician must hold SEP “E up to 1 kV” licence [SEP, 2023]. • Unauthorized overrun may be billed at 5× tariff for excess energy [Energa T&C, 2022].

Who owns and must replace sealed pre-meter fuses?

The pre-meter protection belongs to the installation owner, even if sealed. The DSO owns only the external connector and meter [Elektroda, zbich70, post #16011579] Therefore the recipient pays for and orders the replacement, but must observe the DSO’s technical conditions.

Must I notify the DSO before breaking the seal?

Yes. You submit an unsealing request; the DSO records it or sends a technician. Failure to notify can incur a five-fold surcharge for unaccounted energy use [Energa T&C, 2022].

What qualifications must the electrician have?

In Poland the installer must hold at least SEP Group 1, category E licence up to 1 kV and a valid health-and-safety training certificate [SEP, 2023].

How do I apply for a higher contracted power?

  1. File a "change of connection conditions" form with your DSO.
  2. Receive revised technical conditions (usually 14–30 days).
  3. Sign an updated supply contract, then schedule seal removal and fuse swap [Elektroda, elvis13, post #16012690]

What fuse size matches my planned load?

Power (kW) ≈ √3 × 0.4 kV × Current(A) ÷ 1 000. Example: 3 × 40 A equals about 27.7 kW; 3 × 63 A equals about 43.6 kW [IEC 60364]. Choose the next standard rating above your calculated demand plus 10 % headroom.

How much does a typical upgrade cost?

Budget 50–100 PLN for unsealing, 20–40 PLN per gL/gG 40 A fuse link, and 150–400 PLN electrician labour. Total: roughly 250–400 PLN for a single three-phase set [Tauron Price List, 2024; local market offers].

What happens if I exceed the contracted power without approval?

Modern smart meters log power peaks. Repeated overruns can trigger billing at punitive rates or disconnection [Elektroda, elvis13, post #16012690] Some DSOs charge up to 5× the standard tariff for the excess [Energa T&C, 2022].

How is the fuse changed when no upstream switch exists?

An electrician can:
  1. Request DSO to pull the upstream BM fuse.
  2. Work live with insulated tools rated for 1 kV.
  3. Restore supply and reseal. Live replacement is common but requires specialised grips and arc-flash PPE [Elektroda, polaklbn, post #16012667]

3-Step How-To: authorised fuse replacement

  1. Notify DSO, obtain written approval and seal-breaking code.
  2. De-energise or use insulated tools; remove old 32 A links.
  3. Fit 40 A links, torque terminals, call DSO for resealing. Total downtime: 5–10 minutes when planned.

Do I need to upgrade cables or switchgear too?

Yes. The supply cable, busbars and terminals must handle the higher continuous current. Conductors for 40 A three-phase usually require at least 6 mm² Cu or 10 mm² Al [IEC 60364]. Verify earthing and perform loop-impedance tests after work [Elektroda, elvis13, post #16012890]

Are additional permits required for historic buildings like churches?

Historic sites often need conservation-office consent for any electrical change. A user in the thread flagged this extra paperwork [Elektroda, janek1815, post #16013088] Always attach the permit to your DSO application.

What’s the difference between a power limiter (ETIMAT T) and a circuit breaker?

An ETIMAT T uses only a thermal element. It limits average load and can be reset by the user. A circuit breaker disconnects instantaneously on short-circuit and overload. They serve complementary roles [Elektroda, elvis13, post #16013006]

Is live replacement safe?

Trained crews routinely swap low-voltage fuses live, but arc energy at 40 A can exceed 1.2 cal/cm². An error may burn conductors and cause a 6 h outage—recorded in 0.5 % of field operations in 2021 [DSO Safety Report, 2022]. Use full PPE or isolate first.
Generated by the language model.
ADVERTISEMENT