What is the possible risk of switch in its mid-way?

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Discussion Overview

The discussion revolves around the potential risks associated with a switch that can become stuck in a mid-way position, particularly in the context of electrical switches used for controlling lighting. Participants explore the implications of this issue, including concerns about safety and functionality.

Discussion Character

  • Debate/contested
  • Technical explanation
  • Conceptual clarification

Main Points Raised

  • Some participants note that a switch left in a mid-way position may not be a defect but rather a user error, suggesting that it could be due to not pressing the switch firmly enough.
  • One participant mentions that most switches are designed to avoid intermediate positions to prevent sparking and burning, indicating that there is typically a mechanism to hold the switch in either the ON or OFF state.
  • Another participant emphasizes that the risk associated with a halfway-stuck actuator depends on what the switch is connected to, implying that the load can influence the outcome.
  • Concerns are raised about the safety of using a faulty switch, with one participant advocating for a replacement due to the potential for burning contacts, despite assurances that it should not happen.

Areas of Agreement / Disagreement

Participants express differing views on the safety and functionality of a switch that can become stuck in a mid-way position. While some believe that the design mitigates risks, others argue that caution is warranted, especially in the context of mains electricity.

Contextual Notes

There is uncertainty regarding the specific type of switch and its load, which may affect the discussion about risks. Additionally, the condition of the switch is described as faulty, which adds complexity to the evaluation of potential problems.

Who May Find This Useful

Individuals interested in electrical safety, switch mechanisms, and troubleshooting electrical devices may find this discussion relevant.

kenny1999
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Sometimes, not always though, it was my problem, not the switch is defected, I didn't press it firmly, the switch will leave in its mid-way, but it is supposed to be
either ON or OFF. What is the possible problem of doing this? Will it burn the switch or cause even more severe problem?
 
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What kind of switch? I'm guessing you are talking about AC Mains, but what is the load?
 
kenny1999 said:
Sometimes, not always though, it was my problem, not the switch is defected, I didn't press it firmly, the switch will leave in its mid-way, but it is supposed to be
either ON or OFF. What is the possible problem of doing this? Will it burn the switch or cause even more severe problem?
Most switches are designed to prevent intermediate (not on, not off) positions, precisely because of the sparking and burning problem. Often, there is some spring action to hold it open or closed. So I would not worry about it.
 
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It all depends on what the switch is connected to.
 
berkeman said:
What kind of switch? I'm guessing you are talking about AC Mains, but what is the load?
AC Mains? Did you mean there are plug holes directly near it? No...

It is a panel with only the button and everything is inside, controlling the lamp on the ceiling

switch is kind of old switch, not really too old but general and normal and nothing fancy.
 
kenny1999 said:
Will it burn the switch or cause even more severe problem?
These switches are built so that a halfway-stuck actuator will not supposed to affect the contacts themselves (it should remain in the previous state till that 'clearly audible click').

But: since it's about mains, I would not be satisfied with a 'not supposed'. Since it's a faulty switch anyway, please schedule a replacement.

Supposed or not, I've seen cases when this kind of fault ended with a burning contact.
 

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