Electric Wiring, 3rd Edition

24 Ratings, cable sizes and circuit protection

Table 2.8. Sizes of fuse elements of plain and tinned

copper wire for use in semi-enclosed fuses

Nominal fuse

current

(A)

3

5

10

15

20

25

30

45

60

80

100

Nominal diameter

of wire

{mm)

0.15

0.20

0.35

0.50

0.60

0.75

0.85

1.25

1.53

1.80

2.00

Note: The use of cartridge fuses to the appropriate British Standard

is

normally recommended,

but

where

a

semi-enclosed fuse

is

used,

the figures given

in

this table

will,

in the

absence

of

recommendations made

by the

maker

of the

fuse, provide

an

approximate guide

to the

size

of

wire required. These figures

represent the current which the fuse will carry continuousl ...