Hello my 30 year old house is getting another air conditioning 1 HP.
Below are the followings specs of the AC and wiring.

Is it safe to use such thin wiring for AC with the distance of the wiring span about 8 m to the backdoor for the compressor and back into the room?
I'm not an Electrician. Wiring is done by Air Conditioning Installation Technicians.

The thickness of the cable is 2.5mm² they provided to me.





Updates:
Installed the Air Conditioning unit Already on 05-June.

06-June. It started to rain, and lightning comes, just realized the RCD will keep tripping and became more sensitive when lightning strikes.

Then a new discovery when I go Label each Circuit Breaker in the Electrical Box.
Found out that my new A/C is linked to another older A/C upstairs and other wiring outlets
So Basically no A/C in both rooms tonight. And turned off most of the unnecessary Electrical Appliances and try to Google Up another Electrician Tomorrow.

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Updates:
After reading Surahanjaya Tenaga Guide from 2008
http://ocw.ump.edu.my/pluginfile.php/11228...al%20Wiring.pdf

Realized that Air Conditions should have a 4 mm² wiring connected to 20A MCB
And my house RCD supposingly was a single 30/100 mA RCD by MaxGuard, but the technician swapped out to 300 mA MaxGuard



This post has been edited by iSean: Aug 6 2020, 01:35 AM


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I'm not a technician , I have no knowledge on the thickness on wiring 😂

Any actual recommendation on Wire Diameter Thickness?
I'm not a certified Electrician with a Wiring Certificate. I didn't do the wiring job for my parents 30 year old house.
I suspect Air Conditioning Technicians also all unqualified to do electrical work cheap out on cables... They keep claiming cukup...
Now my RCD tripping like no tomorrow when rain / lightning comes today.

Anyone knows a Good Electrician ah?
I just found out my 30 year old housing wiring is fucked up.

When I realized on Circuit Breaker is connected to 2 x 1 hp A/C. (Old and New) + 2 Other Wall Outlets....

This post has been edited by iSean: Jun 6 2019, 11:17 PM

Sadly I have no idea how to differentiate now, since everything concealed behind plastic housing.
I'm not technical enough to do these.

Need to see trash can still have any bare wires they thrown out
To do the Resistance Test.
Just use Ohms Meter to test resistivity of the wire only?

This post has been edited by iSean: Jun 6 2019, 11:23 PM

Well I'm just uni student hahaha. Well will try to let my parents know what to do. If they neglect my advice find any non trained technicians also no choice. 😂

But will check on Mudah see if it cheap or not

Thanks for feedback. Most likely need to get another Electrical Box and another fuse. My parents not willing to hire a certified electrician 😂

Well true also. Electricity is a silent killer 😂 I think I need to get more surge protector. For my electronics also.

Also I think my ask my neighbour who does housing wiring work to check I guess? Since he is back. I'm not sure he is qualified to do testing tho.

This post has been edited by iSean: Jun 8 2019, 12:04 PM

There's an app for that?
Yeah will check pricing tho.

So Far my house electricity seems stable. I think the A/C burnt my washing machine.
I press the start button, the washing machine trip the whole house now...