DSH 639 Definitions

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小型摆管淋雨试验机

IPX5X6X7喷水试验机

1000L恒温恒湿箱

各种试验指现货

可程式恒温恒湿试验箱

水平垂直燃烧机

自动卷线器试验机

耐划痕试验机

各种灯头量规现货

灼热丝试验机现货

GB1002插头量规

IPX1-X7淋雨现货

IEC61347/UL935镇流器热试验箱

灯具防风罩

IK冲击试验机

UL498插头插座量规

VDE0620插头插座量规

稳定性试验台

家电温升测试角

针焰试验机现货

热电偶焊机现货

家电125mm试验指

E12灯头量规

无绳壶无绳电熨斗插拔寿命试验机

IEC60335试验指甲

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DSH 639 3 m! c! n" ?9 ]1 {# i. X1 ~: u

Definitions

3.1.6

60335-2-6(ed.5) ! K9 T  r( I8 `6 L& ?% i7 D$ z& N

Question:
Taking into account the definitions stated in clause 3:
3.1.6 Note 101: "For appliances having more than three heating units per phase, a diversity factor is applied to the rated current or rated power input when determining the current used to establish the size of the terminals and the nominal cross-sectional area of the supply cord. The diversity factor F is calculated from the following formula, where N is the number of heating units per phase that can be energized together:
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' X5 h0 X" P9 S$ f7 T4 E" }/ u' B8 KF = 0,35 + ------- "
! Z7 `+ W! }2 a# ~square root N
3.108 induction hob: hob containing at least one induction hob element.
7 \1 }0 ]* d2 s8 C9 [1 g, u3.112 induction hob element: hob element that heats metallic vessels by means of eddy currents.
3.109 heating unit: any part of the appliance that fulfils an independent cooking or warming function.
Consider the application of diversity factor to the following induction appliance (see schematic circuit) where:
- the induction hob is composed of 2 induction generators which fulfil an independent cooking and
- each induction generator is composed of 2 induction hob elements which are not independent together- the power input of the induction generator is distributed between 2 induction hob elements?
" u: u% d7 L. W$ V' C6 K# J% pDecision:
For this case, the diversity factor is not applicable if the power input does not vary when the hob elements of the same generator are working together or separate.It is applicable, if the power input with both operating is the sum of each unit operating alone.
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