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Wattage of Refrigerator: Safe to Use This?

junkofdavid2

By junkofdavid2
in The Electrical Forum

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junkofdavid2 Gold Member

junkofdavid2

Posted
Posted

Hi!

 

The only space in my small condo unit to put my small oven is on top of the fridge.

 

Unfortunately I only have one power outlet near the fridge ???? so I'll have to use a circuit switch with 2 outlets.

 

Oven is 1,300 watts.

Circuit switch up to 2,300 watts.

Refrigerator... I don't know where to see the wattage? It's in Thai (attached).

 

Is it safe to do this?

IMG_20191112_200844903.jpg

junkofdavid2 Gold Member

junkofdavid2

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Okay thanks!

 

Wow, do fridges really have such low wattage? 

 

I guess so. I'm surprised...

 

Quote

never did trust those extension leads though....

 

Yeah, but even if their 2,300 watts of the extension is "exaggerated," I'd think it's a safe buffer if 1,300 watts (oven) + 160 watts (fridge) = 1,460 watts total... very below the 2,300 watts.

 

I'm more surprised about the fridge being labelled as just 160 watts max ???? 

 

(but what do I know, I'm not an electric guy at all)

jastheace Silver Member

jastheace

Posted
Posted
1 minute ago, steve187 said:

can you not change the single socket to a double

if he's allowed to that would make sense. 

I don't like the extension leads as the sockets seem to be even lower quality than the fixed wall mount sockets, the pins inside 'splay' and contact becomes iffy after a few in and outs with plugs. plus they get in the way and risk breaking or the add chang beer being spilt on them if they are on the counter

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Beggar Silver Member

Beggar

Posted
Posted

The fridge doesn't need much and if your oven triggers the fuse you will know it immediately. But make sure that your oven does not damage the top of the fridge. 

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junkofdavid2 Gold Member

junkofdavid2

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26 minutes ago, steve187 said:

can you not change the single socket to a double

 

Would have to go through my very old landlady who I haven't seen in 5 years, and then the red tape of the condo juristic person, then would have to use the official maintenance here; so I'd rather not.

 

Thanks for the replies, folks. (More are welcome, of course)

junkofdavid2 Gold Member

junkofdavid2

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25 minutes ago, jastheace said:

if he's allowed to that would make sense. 

I don't like the extension leads as the sockets seem to be even lower quality than the fixed wall mount sockets, the pins inside 'splay' and contact becomes iffy after a few in and outs with plugs. plus they get in the way and risk breaking or the add chang beer being spilt on them if they are on the counter

I stick them up on the wall, so no risk of spills; plus I only unplug/replug at most once a year.

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longball53098 Platinum Member

longball53098

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Worry seems to be about the extension but what about the power point itself and what all is connected to that circuit? Old house or apartment this plug may be part of just one circuit that is already loaded to the max.

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junkofdavid2 Gold Member

junkofdavid2

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42 minutes ago, longball53098 said:

Worry seems to be about the extension but what about the power point itself and what all is connected to that circuit? Old house or apartment this plug may be part of just one circuit that is already loaded to the max.

Yup, that's always a risk, for any appliance.  The building's around 10 years old; relatively new.

Crossy Star Member

Crossy

Posted
Posted

Toshino are a reasonably good brand so the chances are that the extension is actually rated somewhere near what it says.

 

But I do note that the flex is 0.75mm2 which would put its continuous rating at about 6A in free air so your 1500W load (about 7A) is going to have it get pretty warm. Don't leave it unattended when the oven is turned on, just the fridge will be fine.

 

Personally, I'd go out and buy some 1.5mm2 3-core flex (good for 16A), a 3-pin plug and a 3-pin traily outlet (I've seen them in 2 and 4 outlet style), then make your own lead to your requirements.

 

I even did an instructable:-

 

 

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bluesofa Ruby Member

bluesofa

Posted
Posted
17 minutes ago, maxpower said:

This might help with the confusion.

 

https://sciencing.com/difference-between-resistive-inductive-loads-12181159.html

Cor, that takes me back to college days decades ago!

 

Our lecturer taught us to remember the word 'CIVIL' in order to work out the order:

In a capacitive load, 'C', current 'I' leads voltage 'V', but conversely voltage 'V' follows current 'I' in a resistive load 'L'.

 

Also 'CIVIL' is one of the few words composed using Roman numerals: I see it as 104 and 49.

(sorry!)

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sometimewoodworker Ruby Member

sometimewoodworker

Posted
Posted
3 hours ago, bluesofa said:

Cor, that takes me back to college days decades ago!

 

Our lecturer taught us to remember the word 'CIVIL' in order to work out the order:

In a capacitive load, 'C', current 'I' leads voltage 'V', but conversely voltage 'V' follows current 'I' in a resistive load 'L'.

 

Also 'CIVIL' is one of the few words composed using Roman numerals: I see it as 104 and 49.

(sorry!)

CIVIL reads as 153,  to read as 104 and 49. it would be CIV and  IL and so not a word. ???? 

Jan Dietz Explorer Member

Jan Dietz

Posted
Posted

Bleh if you want to be pedantic CIVIL isn't a roman number, as the L MUST come before the V (higher before lower except for subtracting, but then only one letter allowed. max 3 of a kind in a row except M)

junkofdavid2 Gold Member

junkofdavid2

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19 hours ago, Crossy said:

Toshino are a reasonably good brand so the chances are that the extension is actually rated somewhere near what it says.

 

But I do note that the flex is 0.75mm2 which would put its continuous rating at about 6A in free air so your 1500W load (about 7A) is going to have it get pretty warm. Don't leave it unattended when the oven is turned on, just the fridge will be fine.

 

Personally, I'd go out and buy some 1.5mm2 3-core flex (good for 16A), a 3-pin plug and a 3-pin traily outlet (I've seen them in 2 and 4 outlet style), then make your own lead to your requirements.

 

 

 

 

The extension states 10A which is higher than 7A... am I missing something? (I'm not an electrical guy)

 

Confused ????

bankruatsteve Platinum Member

bankruatsteve

Posted
Posted
3 minutes ago, junkofdavid2 said:

 

The extension states 10A which is higher than 7A... am I missing something? (I'm not an electrical guy)

 

Confused ????

The 10 amp rating is possibly a bit liberal and the 7 amp is a bit conservative.  Don't worry about it.

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sometimewoodworker Ruby Member

sometimewoodworker

Posted
Posted
6 minutes ago, junkofdavid2 said:

 

The extension states 10A which is higher than 7A... am I missing something? (I'm not an electrical guy)

 

Confused ????

Yes you are missing the fact that Crossy’s eyes are like a hawk and he spotted the fact that the cable is using .75mm2 wire 

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Crossy Star Member

Crossy

Posted
Posted
37 minutes ago, sometimewoodworker said:

Yes you are missing the fact that Crossy’s eyes are like a hawk and he spotted the fact that the cable is using .75mm2 wire 

 

And that the Bangkok Cable website rates that at 6A in free air 

http://www.bangkokcable.com/product/backoffice/file_upload/131004_20-300!500V 70C 60227 IEC 53-3C (GNYE).pdf

 

Pretty well every extension I've looked at with a 10A rating (fuse or breaker) is using undersized cable. For a toaster or kettle (short term loads) it's not much of an issue. But an oven which may be on for extended periods it's really pushing the envelope.

 

It's not going to immediately burst into flames, but check how warm the cable actually gets and don't leave it unattended when the oven is operating. It will probably be OK but it's worth keeping an eye on.

 

 

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sometimewoodworker Ruby Member

sometimewoodworker

Posted
Posted
48 minutes ago, bankruatsteve said:

Is that for 100m of cable?  Wouldn't it be different for 1m?

Does the length of the cable affect its current rating? I would think not. The length affects the resistance and voltage drop but I’ve never heard that the rating is changed. 
 

As mentioned over driving a cable by a moderate amount for a reasonably short length of time it is on likely to cause damage. 

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bankruatsteve Platinum Member

bankruatsteve

Posted
Posted
23 minutes ago, sometimewoodworker said:

Does the length of the cable affect its current rating? I would think not.

I'm pretty sure it does.  Wait for Crossy.

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