I cant speak for CEC codes but this what I will suggest to buy a 100 amp two pole breaker with tiedown bracket that is the only legit way it can meet the codes and you can use the 200 amp panel with 100 amp main breaker it add on. when you do the upgrading the rest in spring time you can keep that 100 amp breaker for something else or keep it to yourself.,,

I am sure the CEC do allow that so just hang on either Eddy or couple other guys will make a posting on that.

I have done that quite few time so my inspectors did not have issue with that.

 

I would do like French said and backfeed a 100A breaker. But that is not going to be legal in Canada due to the separate service enclosure thing.

Get the customer to give you a deposit on the future service upgrade and don't get it inspected until then. Do this as an emergency repair with the understanding that you will upgrade the service in the Spring. This way you ensure that they have you back to upgrade the whole service and make it compliant.

 

The only way to do this is find a 200 amp panel that will take a 100 amp main breaker. The other option would be put in a 100 amp disco and then feed the 200 amp panel from there.

The labeling thing won't work because there is 100 amp readily available.

Why not wait and do the whole thing in the spring?

Cheers
John

 

Does such a panel exist? The panel needs to be replaced asap, it's a complete mess and a hazard if left as is until the spring.

 

I’m not sure if I understand this. Why can’t a 200 amp panel be used? I’m looking for a technical answer, not a code rule.

 

Because the service conductors will only be rated for 100 and the main breaker in the panel is their only overcurrent protection.

 

Put in a 200a Disconnect and put fuse reducers to 100a. swap later

 

Are you doing renos and adding circuits? If so, you could put in a new 100 amp panel now and then put in a small 200 amp panel beside it in the spring. Turn the 100 amp into a sub. Kind of cheesy but it works and down time would be minimal for your service change.

 

Maybe look at a Siemens P1 in single phase with design-your-own guts.

 

Thanks all. I'll just ask the SH if I can get a 200 amp tub with a 100 amp breaker.

 

Sitting in on a Tech Safety Electrical Fire Risks in Older Homes - Session #1". webinar atm this is a no no , weekend hack as he said he was the cheapest for a panel replacement

 

I think I read somewhere on here once that we can install a 200 amp panel with 1-1/4" conduit by reducing the neutral. Something about it being common practice if the main conduit is really difficult to replace like for a town house where the conduit is under the garage floor slab.
Is this true?


Did some math:
Table 9C - PVC 1-1/4" = 317mm2 @ 40%


Table 10A - R90 2/0 = 141.9mm x 2 = 283.8mm2
R90 #6 = 37.98 mm2

Total 321.78mm2

 

I think I read somewhere on here once that we can install a 200 amp panel with 1-1/4" conduit by reducing the neutral. Something about it being common practice if the main conduit is really difficult to replace like for a town house where the conduit is under the garage floor slab.
Is this true?

Yes it is true.

https://www.electriciantalk.com/f31/service-entrance-conductor-sizing-question-251362/index3/ post #41

Cheers
John

 

By the time we talk about all of this, you could have had the fence and bush cut down and the 200 amp service in by now...

Cheers
John

 

This is true hah. When he saw my price to remove the fence and hedge now in the dead of winter, the owner said he would rather his landscaper do it in the spring...

 

That is more for a conduit that is not replaceable, like buried in a slab.

I don’t think “a big hedge in the way” will fly for that exemption.

 

I think you can get 200 amp frame size breakers in 100 amp trip rating for most panels. I do it as needed with both QO and C-H.