IEC 60335-2-96 条款18.102 什么意思？

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IEC60335试验指甲

18.102 The electrical connections between the resistance material and electrodes of
4 V; E4 l% W0 J# z4 H- }6 kflexible sheet heating elements shall be reliable.
: u1 Y8 T0 X; f; }Compliance is checked by tests that are carried out on two heating units, each having a
length exceeding 1 m.
One heating unit is subjected to the test of 18.102.2 after which it is subjected to the test of
1 [; z( }: K2 ~8 m18.102.5. The other heating unit is subjected to the tests of 18.102.1 to 18.102.5.
After the tests, the voltage drop of the second heating unit, determined at the location where
, f- C1 R% g/ h7 d( O" L  H$ I1 Nbending is applied during the tests of 18.102.2, shall not exceed 1,5 times the voltage drop
; Q. z3 Z5 c" f( ^$ J: X) tthat was determined on the first heating unit. In addition, the average voltage drop
5 M- I6 d& t. |3 b  `6 v* [. Cdetermined at the other locations of the second heating unit, shall not exceed 1,5 times the
  ^$ M3 d' N+ k5 w/ D+ c0 l7 u2 Paverage voltage drop of the first heating unit.
Inspection shall show no contact degradation such as pitting under the electrodes or damage
1 Y2 f2 O+ }2 w1 z' v3 i9 q9 Ladjacent to the electrodes.

1）电压降： 怎么判定是两个样板电压降作比较？电压降怎么测试？按18.101 测试吗？