- Joined
- 11 Jan 2004
- Messages
- 42,753
- Reaction score
- 2,636
- Country
Now, I don't want to confuse anybody looking at these figures: they are not applicable to installations to the 16th Edition.
These figures are the maximum EFLI for BS 3036 fuses, or cartridge fuses having a fusing factor > 1.5:
5A = 16 Ohm
10A = 8 Ohm
15A = 5.3 Ohm
20A = 4 Ohm
30A = 2.7 Ohm
45A = 1.8 Ohm
60A = 1.35 Ohm
100A = 0.8 Ohm
The current figures have dropped slightly (for fixed equipment, anyhow).
There is no mention of enhanced protection (lower figures) for 0.4s disconn times...However, the 14th says that with socket outlets of rating 15A or less "it is desirable" that the LI should not exceed 4 Ohms.
How times change!
These figures are the maximum EFLI for BS 3036 fuses, or cartridge fuses having a fusing factor > 1.5:
5A = 16 Ohm
10A = 8 Ohm
15A = 5.3 Ohm
20A = 4 Ohm
30A = 2.7 Ohm
45A = 1.8 Ohm
60A = 1.35 Ohm
100A = 0.8 Ohm
The current figures have dropped slightly (for fixed equipment, anyhow).
There is no mention of enhanced protection (lower figures) for 0.4s disconn times...However, the 14th says that with socket outlets of rating 15A or less "it is desirable" that the LI should not exceed 4 Ohms.
How times change!
