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2.2.3 Form ofpin Flat pins withthe following width and thickness profiles are deemed to comply: (a) Flat pinswith a radius on the end with side bevels, as shown in Figure 2.1(h), may havea-- (i) width profile with an arc on the centreline of the pin of -- (A) 6mm for all pins of 10A plugs and livepins of 15A plugs; or (B) 11mm for earth pins of 15A plugs andall pins of 20A plugs; 问题:6mm和11mm测量的具体部位是什么? 2.2.4 Insulationof plug pins Plugs up to 15Acomplying with Figure 2.1(a), 2.1(c) or 2.1(f) (flat live pins) and of the insulatedpin plug type do not need to comply with the R20.0±1mm requirements of Figure 2.1(e). 问题:如何理解? 2.5.1 For rewireableplugs, the anchorage shall be effective for the range of flexible cords listedin Table 2.1, except where-- (a) there is aspecial aperture for the accommodation of only one type or size of flexible cord,a circular hole not being regarded as restricting the entry of cords having diameterssmaller than that of the hole; 问题:如何理解? In addition,except where the plug is specially designed to accept only parallel two-coreunsheathed flexible cord, the following shall apply to rewireable resilient andthermoplastic plugs of the type referred to in Figure 2.1(a) and Figure 2.1(b): Two means ofcord grip shall be provided: one that anchors each insulated core by a pillar, post,grip, tortuous path or equally effective means; the second that grips or clampsthe sheathing of the flexible cord. Both means may be incorporated in onedevice. 问题:为什么只是Figure 2.1(a) and Figure 2.1(b)适合这种情况? 2.12.3Additional requirements for rewireable plugs A rewireableplug shall also be supplied with instructions detailing the following: (c) Adescription of the method of connection of each conductor giving thepermissible alternativecolours for the active, neutral and earthing conductors, respectively. 问题:earthing conductors除了用黄绿色,还能有其他的alternative colour? 2.12.6Configuration of plugs A plugconforming to Figure 2.1(a), Figure 2.1(c), Figure 2.1(f) or Figure 2.1(g)shall have its pins disposed so that, when the pins are correctly connected,the pin configuration, viewed as from the pins, shall be earth, neutral andactive in a clockwise direction. 问题:Figure (d)不适用这条吗? 2.13.8Temperature rise test The plug shallbe tested in a draught-free environment at the centre of a plane wooden board,which shall be at least 6 + 2 mm thick, 500 mm wide and 500 mm long withthe rear completely enclosed in a wooden mounting enclosure (wall box) of 90×60×40 mm. Apertures in thewooden board for the plug pins to pass through are specified in Table 3.1,seeFigure 2.9. 问题:如何在木板上制作出满足插座插销的孔? 2.13.9.1Movement of pins Plugs shall betested for pin movement by clamping the pin or pins not under test in a rigid holding block positioned 5 ±0.5 mm from the plug face and applying a forceof 18 ±1 N to the pin under test.The design of the block shall be such that the pin under test shall not comeinto contact with the block during the test. Except fornon-rewireable plugs, the test shall be carried out without a cord attached tothe plug, and with the terminal screws loosened sufficiently to allow a 1 mm2 conductor to be connected. The plug andtest equipment shall be preconditioned at a temperature of 40 ±1°C for 1 h, without the testforce applied. Throughout the test, all parts of the plug and test equipment shallbe maintained at this temperature. For all plugs,the point of application of the force shall be 14 ±0.5 mm from the face of the plug along the pins, and thedirection of the force shall be-- (a) in bothdirections along the line perpendicular to the plane of the pin, and passing throughthe centre of the pin; and (b) in thatplane in both directions along a line at right angles to that specified in Item(a). Over a period of10 s, the force shall be gradually applied to each of the pins in the manner prescribed in Items (a) and (b), maintained atits maximum value for 10 s, and then released. The deflection of the pins shallbe measured along the line of force relative to the face of the rigid holdingblock during the period when the force is applied. The maximum deflection shallnot exceed 2.0 mm. 问题:此条款的检测设备是什么样的?如何做检测? |