What is a BS88 fuse used for?
What is a BS88 fuse used for?
A BS88 fuse contains a sacrificial link that breaks during an overload or short circuit scenario to protect the rest of the electrical system. BS88 fuses are used in low voltage industrial and general-purpose applications and meet the requirements of BS88 and IEC60269.
What is the short circuit capacity of a BS1361 fuse?
16.5 kA
The effective breaking capacity of overcurrent devices varies widely with their construction. Semi-enclosed fuses are capable of breaking currents of 1 kA to 4 kA depending on their type. whilst cartridge fuses to BS 1361 will safely break at 16.5 kA for type 1 or 33 kA for type II.
What is the breaking capacity of a 3036 fuse?
Rated breaking capacity ‘ 4 kA at a lagging power factor of 0.7 to 0.8 for category of duty S4A. BS 3036 fuses are also tested in circuits with a power factor of 0.4 to 0.5 lagging at a current of between 5 and 7 times the minimum fusing current†.
How does a BS88 2 fuse work?
(Inside the BS88 fuse body is the fuse wire/wires which are surrounded by sand. The fuse clears the fault once the wire/wires are melted inside the sand). So the fuse is melted by energy which is the I2T number you are referencing.
What type of fuse is a BS88?
TIA BS88, IEC269 Industrial Fuse Links Offset Bolted Tags 550V ac This range of Q1 fusing factor general purpose (gG) fuse links has a breaking capacity of 80kA ac and 40kA dc where applicable.
What type of fuse system is a bolted BS88 2 fuse?
HBC
I think most will know that a BS 88-2 fuse is a HBC, a high rating/breaking capacity for, sort of, industrial type applications. You say that ‘industrial’.
What is short circuit capacity?
short circuit capacity can refer to two things; 1. The maximum fault current that can be generated in a worst case scenario ( a bolted 3phase fault) 2. The ability of a device or system to protect a system and withstand the fault currents in a worst case scenario.
How do you calculate PSC?
Where there is a three phase supply, the PSC is likely to be between line conductors. In this case, the PSC can be calculated by multiplying the single phase reading by the square root of 3 or 1.73. Therefore in the example above, the PSC would be 3000 x 1.73 = 5190 A or 5.19kA.
What is the short circuit capacity of a Rewirable fuse?
16.5kA
Category of duty: AC21 60A >1989, 100A After 1989 (for 2, 3, 4, 6 and 8 way). The cartridge fuse offers a mid cost option between rewirable fuses and MCB’s. They have a short circuit rating of 16.5kA, which means that for the normal 100A single phase supply, no further consideration of fault level is necessary.
What is the short circuit capacity of a BS 3036 s1a fuse as given in the IET on site guide?
Cartrdige fuse to BS 1361 type 2 a staggering 33KA rated short ciruit capacity.
What type of fuse is BS88 2?
The fuse complies with standard EN 60269-2 section II and standard BS 88 part 2. This fuse range insures an excellent current limi- tation for all overloads on a large range of appli- cations. Their size cannot allow exchange by other fuses of higher rating in their range.
