BS EN 60384-13:2012 pdf download

BS EN 60384-13:2012 pdf download.Fixed capacitors for usein electronic equipment Part 13: Sectional specification —Fixed polypropylene film dielectricmetal foil d.c. capacitors.
3.2 Structurally similar components
Capacitors considered as being structurally similar are capacitors produced with similar
processes and materials, though they may be of different case sizes and values.
3.3 Certified records of released lots
The information required in Clause 0.9 of Annex 0 of IEC 60384-1 shall be made available when prescribed in the detail specification and when requested by a purchaser. Alter the endurance test, the parameters for which information on variables is required are the capacitance change, tan 6 and insulation resistance.
3.4 Qualification approval
The procedure for qualification approval testing is given in Clause 0.5 of IEC 60384-1.
The schedule to be used for qualification approval testing on the basis of lot-by-lot and periodic tests is given in Clause 0.5 of IEC 60384-1. The procedure using a fixed sample size schedule is given In 3.4.1 and 3.4.2 below.
3.4.1 Qualification approval on the basis of the fixed sample size procedures
The fixed sample size procedure is described in item b) of 0.5.3 of IEC 60384-1. The sample shall be representative of the range of capacitors for which approval is sought. This may or may not be the complete range covered by the detail specification.
The samples shall consist of specimens having the lowest and highest voltages, and, for these voltages, the lowest and highest capacitances. When there are more than four rated voltages, an intermediate voltage shall also be tested. Thus, for the approval of a range. testing is required of either four or six values (capacitance/voltage combinations). When the range consists of less than four values, the number of specimens to be tested shall be that required for four values.
Spare specimens are permitted two or three per value which may be used as replacements for specimens which are non-conforming because of incidents not attributable to the manufacturer.
The numbers given in Group 0 assume that all groups are applicable. If this is not so, the numbers may be reduced accordingly.
When additional groups are introduced Into the qualification approval test schedule, the number specimens required for Group 0 shall be increased by a same number as that required for the additional group.
Table 1 gives the number of samples to be tested in each group oi subgroup together with the permissible number of non-conforming items for qualification approval tests.
3,4,2 Tests
The complete series of tests specified in Table 3 and Table 4 are required for the approval of capacitors covered by one detail specification. The tests of each group shall be carried out in the order given.
The whole sample shall be subjected to the tests of Group 0 and then divided for the other groups.
Specimens found non-conforming during the tests of Group 0 shall not be used for the other groups.
4.2.5.2 Requirements
The change of capacitance during and after the temperature cycle (temperature coefficient and temperature cyclic drill of capacitance) shall be within the limits of the relevant stability class and upper category temperature according to 2,2.4.
4.2.6 Inductance (if required)
See IEC 60384-1, 4.11, with the following details.
The inductance of the capacitoi shall be measured. The limit for its value shall be prescribed in the detail specification.
NOTE An approzimate value of inductance may be provided from the resonant frequency value obtained, for ezainple. with an absorption method and from the capacitance value measured according to 42.2.
4.2.7 Outer foil termination (if required)
See IEC 60384-1, 4.12, with the following details.
The correct indication ol the termination which is connected to the outside metal foil shall be checked in such a way that the capacitor is not damaged.
4.3 Robustness of terminations
See IEC 60384-1, 4,13, with the following details:
4.3.1 Initial measurements
The capacitance shall be measured according to 4.2.2.
The tangent of loss angle shall be measured according to 4.2.3,1.
4.4 Resistance to soldering heat
See IEC 60384-1. 4.14. with the following details.
4.4.1 Conditions No pre-drying.
44.2 Final inspection, measurements and requirements
The capacitors shall be visually examined and measured and shall meet the requirements given in Table 4.
4.5 Solderabllity
See IEC 60384-1, 4,15, with the following details,
4.5.1 Test conditions No ageing.
The requirements for the globule test method shall be prescribed in the detail specification.