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球压测试请参考IEC60335-1 part 30.
! T# B9 r; n5 \- W30 Resistance to heat and fire+ j$ |- L7 {3 L; i) t5 F2 I% S2 ^
30.1 External parts of non-metallic material, parts of insulating material supporting live
+ b1 q/ U) I0 ]; Uparts including connections, and parts of thermoplastic material providing supplementary
. x- {& m2 L# d" Einsulation or reinforced insulation, shall be sufficiently resistant to heat if their deterioration
) j% p( r- T. l% d$ I/ Dcould cause the appliance to fail to comply with this standard.8 E% w; l7 a# X+ P1 Q
This requirement does not apply to the insulation or sheath of flexible cords or internal wiring.
+ f3 x5 g' B. {# v3 HCompliance is checked by subjecting the relevant part to the ball pressure test of4 A! U, l+ i8 n0 k6 ^
IEC 60695-10-2.
- _8 H0 k* N9 G& k$ \The test is carried out at a temperature of 40 °C ± 2 °C plus the maximum temperature rise9 N+ d! W$ k) }6 W
determined during the test of clause 11, but it shall be at least) K+ B6 }2 m* ^& G6 g
– 75 °C ± 2 °C, for external parts;* S: X' H' R' q) T+ m
– 125 °C ± 2 °C, for parts supporting live parts.
5 B8 m$ d4 T+ O7 ~However, for parts of thermoplastic material providing supplementary insulation or
1 ]7 D4 v) G% G" m( areinforced insulation, the test is carried out at a temperature of 25 °C ± 2 °C plus the* L4 T4 s6 Q9 Z9 |
maximum temperature rise determined during the tests of clause 19, if this is higher. The
6 M/ H# k, U( H+ qtemperature rises of 19.4 are not taken into account provided that the test is terminated by/ X- N# m8 z" H E: w; k, `
the operation of a non-self-resetting protective device and it is necessary to remove a7 e# R% l) a1 x7 V9 h
cover or use a tool to reset it.6 n. {% S' g/ W, C- ^
60335-1 IEC:2001 – 177 –
6 N% T5 z$ I* d8 R2 xNOTE 1 For coil formers, only those parts that support or retain terminals in position are subjected to the test.
+ y7 y+ W" D/ E' ~NOTE 2 The test is not carriedout on parts of ceramic material.4 M/ R$ s# Y; g2 D( [
NOTE 3 The selection and sequence of tests for resistance to heat are shown in figure O.1. |
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