Production of fuses for any current. reference Information

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Production of fuses for any current

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Fuses are the most widely used. They are cheap and easy to manufacture, and in the event of a short circuit in the network, they protect the wiring from fire.

When a fuse blows, it needs to be replaced quickly. There is not always a spare fuse for the required current. The easiest way to make a protective fuse is from a wire of the appropriate diameter. Moreover, the wire diameter for the required melting (protection) current can be selected from the table, which shows the values for different metals. As a basis for fixing (soldering) a fusible insert, a burnt frame can be used.

Current, A	Wire diameter in mm				Current, A	Wire diameter in mm
Current, A	Copper	Alumin.	Steel	Lead	Current, A	Copper	Alumin.	Steel	Lead
1	0,039	0,066	0,132	0,183	60	0,82	1,0	1,8	2,8
2	0,069	0,104	0,189	0,285	70	0,91	1,1	2,0	3,1
3	0,107	0,137	0,245	0,380	80	1,0	1,22	2,2	3,4
5	0,18	0,193	0,346	0,53	90	1,08	1,32	2,38	3,65
7	0,203	0,250	0,45	0,66	100	1,15	1,42	2,55	3,9
10	0,250	0,305	0,55	0,85	120	1,31	1,60	2,85	4,45
15	0,32	0,40	0,72	1,02	160	1,57	1,94	3,2	4,9
20	0,39	0,485	0,87	1,33	180	1,72	2,10	3,7	5,8
25	0,46	0,56	1,0	1,56	200	1,84	2,25	4,05	6,2
30	0,52	0,64	1,15	1,77	225	1,99	2,45	4,4	6,75
35	0,58	0,70	1,26	1,95	250	2,14	2,60	4,7	7,25
40	0,63	0,77	1,38	2,14	275	2,2	2,80	5,0	7,7
45	0,68	0,83	1,5	2,3	300	2,4	2,95	5,3	8,2
50	0,73	0,89	1,6	2,45

Publication: radioman.ru

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