20 Breaking capacity 分断容量
插头插座量规Gauges for plugs and sockets：
IEC60884|GB2099|VDE0620 测试设备Testing equipments：
Accessories shall have adequate breaking capacity.
Compliance is checked by testing socket-outlets and plugs with pins which are not solid, by means of an
appropriate test apparatus, an example of which is shown in figure 16.
透过插座和非实心插头的试验进行检验。试验时使用如图 16 所示的试验装置。
Rewirable accessories are fitted with conductors as specified for the test of clause 19.
移动式插接装置必须接上第 19 条测试规定的导线。
NOTE 1 A revision of the test apparatus shown in figure 16 is under consideration.
NOTE 2 In case of failure of the shutters, the test on shuttered socket-outlets may be repeated with operations made by hand.
Socket-outlets are tested using a test plug with brass pins provided, if applicable, with insulating sleeves,
and having the maximum specified dimensions, with a tolerance of+0/-0.06 mm, and spaced at the nominal
distance, with a tolerance of+0.05/0 mm. As far as the extremities of the sleeves are concerned, it is sufficient that their dimensions are within the tolerances given in the relevant standard sheet.
插座使用具有黄铜插销的试验插头做试验。可行的话，使用带有插销防护套且最大规定尺寸及公差+0/-0.06 mm 以及标称插销间距公差+0.05/0 mm的插头。插销防护套的尺寸必须在相关尺寸规范公差以内。
NOTE 3 The shapes of the extremities of the insulating sleeves are not considered of importance for the purpose of the test,
provided that they are according to the relevant standard sheet.
NOTE 4 The material of the brass pins of the test plug should be as specified in ISO 1639, Type CuZn39Pb2-M, and their
micro-composition should be homogeneous.
The ends of round pins are rounded.
Plugs are tested using a fixed socket-outlet complying with this standard and having as near-to-average
characteristics as can be selected.
NOTE 5 Care should be taken that the pins of the test plug are in good condition before the test is started.
For accessories with a rated voltage lower than or equal to 250 V and a rated current lower than or equal
to 16 A, the length of the stroke of test apparatus is between 50 mm and 60 mm.
对于额定电压小于等于 250V 及额定电流小于等于 16A 的插接装置，试验装置的冲程为 50mm～
NOTE 6 The length of the stroke for accessories with other ratings is under consideration.
The plug is inserted and withdrawn from the socket-outlet 50 times (100 strokes) at a rate of
将插头插入和拔出插座 50 次（100 个行程） ，插拔的速率为︰
− 30 strokes per minute for accessories having a rated current up to and including 16 A and a rated
voltage up to and including 250 V;
额定电流小于等于 16A、额定电压小于等于 250V 的插接装置，每分钟 30 个行程；
− 15 strokes per minute for other accessories.
其它插接装置，每分钟 15 个行程。
NOTE 7 A stroke is an insertion or a withdrawal of the plug.
The test voltage shall be 1,1 times the rated voltage and the test current shall be 1,25 times the rated
试验电压必须等于额定电压的 1.1 倍，试验电流必须等于额定电流的 1.25 倍，
The periods during which the test current is passed from the insertion of the plug until subsequent
withdrawal are as follows:
− for accessories with rated current ≤16 A: 1,5+0.5/0秒
16A 及以下的插接装置：（1.5 +0.5/0）秒
− for accessories with rated current >16 A: 3+0.5/0秒
Accessories are tested using an alternating current with cosφ= 0,6±0,05.
插接装置应使用 cosφ=0.6±0.05 的交流电流做试验。
No current is passed through the earthing circuit, if any.
The test is made with the connections shown in figure 17. Two-pole accessories with neutral contact (2P
+ N and 2P + N+〒) are connected to two phases and the neutral of a threephase system.
试验采用如图 17 所示的接线模式。具有中线花朵的兩极插接装置(2P + N 及 2P + N +〒)連接到
Resistors and inductors are not connected in parallel except, if an air-core inductor is used, a resistor
taking approximately 1 % of the current through the inductor is connected in parallel with it.
Iron-cored inductors may be used, provided the current has a substantially sine-wave form.
For the test on three-pole accessories, three-core inductors are used.
Accessible metal parts, metal supports and any metal frame supporting the base of flush-type
socket-outlets are connected through the selector switch C; for two-pole accessories, to one of the poles
of the supply for half the number of strokes, and to the other pole for the remainder; for three-pole
accessories, they are connected consecutively to each pole of the supply for one-third of the number of
开关 C 接到相应的电极。对于兩极插接装置，在一半數目的冲程接到其中一极，另一半冲程接到
In the case of multiple socket-outlets, the test is carried out on one socket-outlet of each type and current rating.
During the test, no sustained arcing shall occur.
After the test, the specimens shall show no damage impairing their further use and the entry holes for the
pins shall not show any damage which may impair the safety within the meaning of this standard.