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If theres no switch,the device or whatever, is still energised,also it will still draw current,and could be a fire hazard,perhaps a fault will occur when unattended.
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If there's no switch, then surely the user will unplug the appliance or turn it off at a switched wall socket? I've just been thinking about what appliances I have without a mains switch. All I can thing of is a 60W inspection lamp and a portable 500W floodlight. The latter is definitely a fire hazard and consumes a lot of juice. That's why I unplug it when I leave it unattended. Lack of a switch on the floodlight doesn't deter me from unplugging it.
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I have seen countless "switches"made of plastic,these just burn up or melt down
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I've also seen countless plastic switches, but I've not known one to catch fire or melt. I accept that this could happen if the switch was overloaded or incorrectly fused. Are you advocating a return to switches with porcelain innards which have a habit of breaking when you tighten the screws?
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,also kettle connectors burn up or melt,surely you have come accross this sort of thing
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No I haven't come across it. The kettles we had at work suffered constant use and abuse, but I never knew a connector to melt or burn up.
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! 3a rating cables often used for 5-7a loads,this is todays practice.
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That may be the practice, but it's not the rule, standard or regulation. I am advocating us obeying the rules, not breaking them.
Graham.