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Type S Fuses: Difference Between 16A, 16B, and 16C Markings and Their Uses

cjbobo10 62608 7
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Treść została przetłumaczona polish » english Zobacz oryginalną wersję tematu
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  • #1 2811634
    cjbobo10
    Level 17  
    Hello. I have a question: in my house my fuse box is burnt, the installation is quite old, so maybe that's why (installation still on aluminum pipes). in the doim, I had all 16A fuses (three for the house and three for strength), now I want to install new type s fuses, but from what I know they are different, e.g. 16B or 16C, I have no idea what their difference is in these markings and what would I do needed and what would be the price of this request, I would like to thank you in advance for all answers.
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  • #2 2811730
    lisos
    Level 22  
    C and B are the operating characteristics, fuse-links (i.e. the ones you had) are also slow -C and fast-B
    if you have any engine - you assume C, for all other B receivers, the price of a single module is about PLN 9
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  • #3 2812439
    janhen
    Level 22  
    Hello
    It is not that "S" with characteristics B is fast and C is delayed, but B have triplicate 5 times the rated current and should be used to protect lighting installation circuits and plug sockets, and types C 10 times and should be used for circuit protection It is worth paying attention to a very important detail in long networks and electrical installations the short-circuit loop may be too large and the short-circuit current too small for the "S" protection to switch off, which may result in fire or electric shock. The rated current of the protections should also be matched to the cross-section and type of cables (aluminum conductors). A fire in the fuse box may have been caused by the fact that these conditions were not met.
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  • #4 2812478
    marek234
    Level 14  
    Instead, think about replacing the cables - they are "fed up". Burning of the "fuse box" is the effect of "aluminum flow" - contact deterioration as a result of heating and cooling of the wires. The installation is overloaded and / or not maintained (loose screws connecting the wires).
    The replacement of security features is only a defect removal, not the removal of the causes.
    Regarding the question: the selection of protections should be made by an electrician depending on the cross-section of the cables used, the impedance of the short-circuit loops and perform the measurements.
  • #5 2821427
    kleki
    Level 28  
    In fact, if it's an apartment, just give S-B's. Then you don't worry too much about the power shutdown conditions.
    kisses
  • #6 2822863
    and61
    Level 27  
    if you are going to make a new fuse box, do not forget about the residual current circuit breaker, I suspect that the installation (since it is aluminum) is made in the TN-C system, i.e. the force you mention is made with 4 wires and the 230V installation is two-wire, I propose to make a new installation in the system TN-S
    (strength - 5-wire installation, single-phase - with three wires) as for the fuses, their values depend on the load (S type B values 16 A per socket - up to 8 pieces per fuse, S type B 10 A for lighting)
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  • #7 2823363
    tmko
    Level 16  
    if you decide on a new installation, divide the circuits and give a difference for each group, if there is leakage somewhere, everything will not go out
  • #8 2824670
    cjbobo10
    Level 17  
    ok thanks greetings replacing only fuses
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Topic summary

The discussion revolves around the replacement of old fuses in a house's electrical installation, specifically transitioning to Type S fuses. Users clarify that Type B fuses are fast-acting and suitable for lighting and socket circuits, while Type C fuses are delayed and better for circuits with inductive loads, such as motors. Concerns are raised about the potential risks of using the wrong type of fuse, especially in older aluminum wiring systems, which may lead to overheating and fire hazards. Recommendations include consulting an electrician for proper fuse selection based on cable specifications and considering a complete rewiring to modern standards, such as TN-S systems, to enhance safety. The importance of residual current circuit breakers is also emphasized.
Summary generated by the language model.
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