Out of interest how do you size match these?
16mm 60A
25mm 80 or 100A ?
35mm
Thanks
16mm 60A
25mm 80 or 100A ?
35mm
Thanks
Well, if you go by BS7671 (which is not necessarily the relevant regulation), 16mm² singles 'clipped direct' (the 'best' on offer) have a CCC of 87A (although 16mm² T+E in free air is 94A). 25mm² singles have a CCC of 114A if 'clipped direct' or, if they are in free air and not touching (which is usually the case for tails), 130A if vertical and 146A if horizontal. 35mm² singles (are they ever used as 'tails', at leas domestically?) are 141A 'clipped direct', or 162A (vertical) /181A (horizontal) in free air.Out of interest how do you size match these? ... 16mm 60A ... 25mm 80 or 100A ?
... 35mm
No - see my recent post.I assume In free air is the same as clipped ?
Indeed but, for CSA's above 16mm², look at the column for Method F (called Method E in 4D2A!).Single phase, clipped: ... Table 4D1A
So if I wanted to purchase a spare service fuse (just in case the present 60A got overloaded and blew) Are all fuses the same physical size?
E.g a bill fuse holder.
Are you talking about the ones before the meter, or after it?Out of interest how do you size match these?
16mm 60A
25mm 80 or 100A ?
35mm
What do you mean?There is actually another fuse before the supply cable.
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