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electric cooker hob
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<blockquote data-quote="Berlioz" data-source="post: 224039" data-attributes="member: 15205"><p>To Sidewinter. Well, it easy. On the Lithuanian (and thats means on the Europian) market theres no domestic (for rezidential houses) cookers more than 7kW. All the modern cookers allower connecting 1ph (in my previous post 1F, sorry) and 3ph (the connecting scheme is shown as a rule on the back side). Lets account: 1ph. I=7/0.22=32A. Cable 3x6. 3ph=7/0.66=11A cable 5x2.5. If the cooker is specifical (more 7kW)-Customer should report me. Most of the cooker now are connected 3ph.Why? Well... emagine-Your house or flat has 10kW of permitted power. The automatic swith is 20A, 3ph. And Your cooker is 6kW, 1ph. I=6/0.22=27,2A. Now if the cooker is turned on at full power-Your permitted automatic switch will swith off after... 27.2A/20A=1.36 1.13&lt;1.36&lt;1.4... about 1 h. Is it good? No. Thats why we use 3ph connecting. I v been to GB (as a turist) and noticed that devices and aprouches very much differ from Europinian.</p></blockquote><p></p>
[QUOTE="Berlioz, post: 224039, member: 15205"] To Sidewinter. Well, it easy. On the Lithuanian (and thats means on the Europian) market theres no domestic (for rezidential houses) cookers more than 7kW. All the modern cookers allower connecting 1ph (in my previous post 1F, sorry) and 3ph (the connecting scheme is shown as a rule on the back side). Lets account: 1ph. I=7/0.22=32A. Cable 3x6. 3ph=7/0.66=11A cable 5x2.5. If the cooker is specifical (more 7kW)-Customer should report me. Most of the cooker now are connected 3ph.Why? Well... emagine-Your house or flat has 10kW of permitted power. The automatic swith is 20A, 3ph. And Your cooker is 6kW, 1ph. I=6/0.22=27,2A. Now if the cooker is turned on at full power-Your permitted automatic switch will swith off after... 27.2A/20A=1.36 1.13<1.36<1.4... about 1 h. Is it good? No. Thats why we use 3ph connecting. I v been to GB (as a turist) and noticed that devices and aprouches very much differ from Europinian. [/QUOTE]
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