Don't buy MR DIY Surge Protector powerstrip, The MOV is only protecting one socket.
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 Aug 13 2018, 07:46 PM
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#1
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Senior Member
1,004 posts Joined: Sep 2014  
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From eyeballing the innards seems like the singlr mov protects all sockets (when individual sockets switched on). Look at the common N and L rails.
Then again I'm not an electronic circuitry expert. |
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Aug 13 2018, 08:02 PM
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#2
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Senior Member
1,004 posts Joined: Sep 2014
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QUOTE(JohnLai @ Aug 13 2018, 07:56 PM) Yes, I know about those three lines protection. Look carefully. It's the same.In MR DIY powerstrip, if there is power surge and all four switches are turned on, only Green socket will be protected from surge while the Blue, Orange and Red sockets will be hit by surge. In this case, the MOV should be installed as shown below in red line (Point of entry):  This way, all four sockets will be protected from surge coming from Live wire by redirecting surge to Neutral wire out. I have no idea why the MOV is installed that way protecting only one socket  and still pass SIRIM. |
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Aug 13 2018, 09:41 PM
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#3
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Senior Member
1,004 posts Joined: Sep 2014
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QUOTE(waterjunk @ Aug 13 2018, 09:04 PM) I not sifu la lol. If you paranoid then make a trip to Jln Pasar, buy another MOV with same part number and stick it to the entrance also can. Add "pls don't electrocute yourself in the process" disclaimer here.What makes u consider surge arrestors at the first place? If your lights dim while your neighbours wash their car it's better to check grounding instead  |
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