Fuse in a spur

  • Thread starter Thread starter Jay2506
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What about products that are designed to fulfill a task that requires them to be a certain size or they cannot be used?

As above, sometimes it is necessary. It does not result in a flaky or inadequate product when used in accordance with the manufacturer's instructions.

I think you need to read it again.

Manufacturers instructions are frequently wrong. If they ask for an external fuse of say 3 amps when in the majority of countries this can't be done they are wrong.
 
So, again, this seems to be very important to you.
Your life's task should be to contact all of these erring manufacturers and tell them that they are wrong.
Let us know how you get on.
 
What about products that are designed to fulfill a task that requires them to be a certain size or they cannot be used?
And are these "requirements" immutable forces of nature, or something which some person has deliberately specified?


As above, sometimes it is necessary.
Give me an example where it is absolutely IMPOSSIBLE to make it big enough to be able to contain its own internal protection. (When doing so, please do remember that the context is electrical appliances large enough to be connected to the wiring of an electrical installation).


It does not result in a flaky or inadequate product when used in accordance with the manufacturer's instructions.
You are wrong. If the instructions say that the product must be used with, and that it will not be safe without, some external circuit-level protective device then it is flaky and inadequate.

I give you the 10.8kW electric shower which has PCBs, electronic components, and very thin wires. If the maker of the shower can do it then so can everybody else.


I think you need to read it again.
I have read it again.

It still says "The Regulations apply to items of electrical equipment only so far as selection and application of the equipment in the installation are concerned."

And the definition of "electrical equipment" still includes accessories.
 
And I give you fusible resistors
Don't give them to me, Bernard - give them to stillp (and some SMD fuses, if you have any) - he's the one who thinks that an electrical appliance with connections large enough to allow it to be connected to a LV cable or flex sometimes has to be so unavoidably small that it would be impossible to have internal protection.
 
Not correct.
You make so much noise about people getting their posts absolutely correct.
Pity you do not take as much care with yours.
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Not correct.
You make so much noise about people getting their posts absolutely correct.
Pity you do not take as much care with yours.

What is not correct? Is nothing made in other countries? Are Valliant boilers not made in Germany?
 
Don't give them to me, Bernard - give them to stillp (and some SMD fuses, if you have any) - he's the one who thinks that an electrical appliance with connections large enough to allow it to be connected to a LV cable or flex sometimes has to be so unavoidably small that it would be impossible to have internal protection.
As you are often wont to write BAS, please tell me where I have written that, without filtering my words through your particular interpretation.

Anyway, I had asked if there is any regulatory or other 'official' reason why an appliance cannot require external overcurrent protection, and you seem to have confirmed that there is no such reason, just your (and others') opinion.
 
As you are often wont to write BAS, please tell me where I have written that, without filtering my words through your particular interpretation.
I didn't say that you had written that, I said you think it. And you clearly must, because you did write these:

Some of the small products I was involved with simply didn't have the space inside for a fuse that could break the prospective fault current
No, they were too small to contain a suitable protective device.
What about products that are designed to fulfill a task that requires them to be a certain size or they cannot be used?

As you now seem to be objecting to having that belief ascribed to you, can we take it that you don't think that such appliances ever have to be so unavoidably small that it would be impossible to have internal protection, and that therefore if one does end up that small then it's because of a deliberate choice made by the designers?
 

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