When was 2nd small appliance circuit added to NEC?

[brycenesbitt]

210.52(B) requires two 20A circuits for small appliances (regardless of the size of the kitchen).
When was this requirement added?
Is there a good no-login way to browse a given section of the NEC over time?

--
Note I do some 150 square foot units, where the two circuit rule seems overkill.

 

[tom baker]

No way to look at changes over time. Have to go back to old NECs

 

[LarryFine]

Note I do some 150 square foot units, where the two circuit rule seems overkill.

Some of us have suggested one duplex fed by two circuits for a very small kitchen space.

 

[david luchini]

210.52(B) requires two 20A circuits for small appliances (regardless of the size of the kitchen).
When was this requirement added?
Is there a good no-login way to browse a given section of the NEC over time?

--
Note I do some 150 square foot units, where the two circuit rule seems overkill.

The oldest online (NFPA.org) NEC is the 1968 edition. The two small appliance branch circuit requirement appears in that edition. It has the revision bar on the entire section, so it may have been added to the Code at the time.

 

[MyCleveland]

210.52(B) requires two 20A circuits for small appliances (regardless of the size of the kitchen).
When was this requirement added?
Is there a good no-login way to browse a given section of the NEC over time?

--
Note I do some 150 square foot units, where the two circuit rule seems overkill.

My home was built 65-66, and assume the 2 SABC were in the text then.
Yes 2 were installed, but only one served the kitchen counter(S)...and the frig...and the laundry.
The second served a few outlets in a small dining area.

 

[tortuga]

210.52(B) requires two 20A circuits for small appliances (regardless of the size of the kitchen).
When was this requirement added?
Is there a good no-login way to browse a given section of the NEC over time?

I love a history question time to go dust off the collection...
In the roraing 1920's NEC it gets interesting, as the 660 & 1320 watt limitations on branch circuits would have required a modern kitchen to have a lot more dedicated circuits than two.
In the 1937 NEC it was a recommendation that branch circuits supplying a kitchen, laundry, pantry, dining room and breakfast room could not supply other outlets.

Lets see in 1940 NEC section 2109 changed to a requirement, so i'd say 1940 was the beginning of what is now the modern requirement.
over time 2109 ends up as 220.3(b) in 1965 NEC requiring two small appliance branch circuits serving the kitchen.
So
Pre 1930's who knows what you'll find
1930's not required, but recommended.
1940 house = at least one dedicated 20A circuit
1965 and up = two.

 

[MyCleveland]

I love a history question time to go dust off the collection...
In the roraing 1920's NEC it gets interesting, as the 660 & 1320 watt limitations on branch circuits would have required a modern kitchen to have a lot more dedicated circuits than two.
In the 1937 NEC it was a recommendation that branch circuits supplying a kitchen, laundry, pantry, dining room and breakfast room could not supply other outlets.

Lets see in 1940 NEC section 2109 changed to a requirement, so i'd say 1940 was the beginning of what is now the modern requirement.
over time 2109 ends up as 220.3(b) in 1965 NEC requiring two small appliance branch circuits serving the kitchen.
So
Pre 1930's who knows what you'll find
1930's not required, but recommended.
1940 house = at least one dedicated 20A circuit
1965 and up = two.

Did the 65 state the LAUNDRY could be part of one of these 2 circuits ?

 

[tortuga]

Scratch that, they did some re wording in 1965, but the requirement for two circuits first appears in 1959

 

[tortuga]

Did the 65 state the LAUNDRY could be part of one of these 2 circuits ?

Yes it was not until 1968 that 220-3(b) is changed to add a requirement for a dedicated 20A circuit to serve the laundry room.

And it appears I was wrong again, they did require the two circuits in 1958, but they did not both need to hit the kitchen until 1962 when
220.3(b) was modified in the 1962 NEC to require “receptacle outlets supplied by at least two appliance receptacle branch circuits shall be installed in the kitchen.”
Thanks for the history questions
Cheers

 

[MyCleveland]

Yes it was not until 1968 that 220-3(b) is changed to add a requirement for a dedicated 20A circuit to serve the laundry room.

And it appears I was wrong again, they did require the two circuits in 1958, but they did not both need to hit the kitchen until 1962 when
220.3(b) was modified in the 1962 NEC to require “receptacle outlets supplied by at least two appliance receptacle branch circuits shall be installed in the kitchen.”
Thanks for the history questions
Cheers

Did the 1962 text also include Dining rooms in regards to where the TWO circuits were allowed to serve?

 

[tortuga]

Did the 1962 text also include Dining rooms in regards to where the TWO circuits were allowed to serve?

Yes, Dining rooms along with laundry, pantry, breakfast rooms along with kitchens.

 

[goldstar]

Side bar question for the historian (tortuga) : Has the NEC always updated the electrical Code every 3 years ? If so, based on the current years there would not be a 1959 or 1962 Code. If not, when did they start ? Please clarify for my own sanity.

2020-17-14-11-08-05-02-1999-96-93-90-87-84-81-78-75-72-69-66-63-60-57...........

 

[infinity]

Side bar question for the historian (tortuga) : Has the NEC always updated the electrical Code every 3 years ? If so, based on the current years there would not be a 1959 or 1962 Code. If not, when did they start ? Please clarify for my own sanity.

2020-17-14-11-08-05-02-1999-96-93-90-87-84-81-78-75-72-69-66-63-60-57...........

If you look in the front of the code book it tells you what each edition is. They do skip around a bit.

This 54th edition supersedes all other previous editions, supplements, and printings dated 1897,
1899, 1901, 1903, 1904, 1905, 1907, 1909, 1911, 1913, 1915, 1918, 1920, 1923, 1925, 1926, 1928, 1930,
1931, 1933, 1935, 1937, 1940, 1942, 1943, 1947, 1949, 1951, 1953, 1954, 1955, 1956, 1957, 1958, 1959,
1962, 1965, 1968, 1971, 1975, 1978, 1981, 1984, 1987, 1990, 1993, 1996, 1999, 2002, 2005, 2008, 2011,
and 2014.

 

[goldstar]

If you look in the front of the code book it tells you what each edition is. They do skip around a bit.

Good info - thanks. Looks like the 1959-1962 was the start of the 3-year update plan.

 

[infinity]

Good info - thanks. Looks like the 1959-1962 was the start of the 3-year update plan.

Yes. The 50's were an active time but the book was only a few hundred pages then.

 

[Dennis Alwon]

If you look in the front of the code book it tells you what each edition is. They do skip around a bit.

Interesting from 1959 onward, excluded 1975, there was 3 years between code cycles. For some reason 1971 went 4 years to 1975 cycle

 

[goldstar]

Interesting from 1959 onward, excluded 1975, there was 3 years between code cycles. For some reason 1971 went 4 years to 1975 cycle

Glad you picked that up (1971-1975). I missed it.

Do you think that there were so many Code changes that they couldn't publish in the 3-year plan ?

 

[Fred B]

Interesting from 1959 onward, excluded 1975, there was 3 years between code cycles. For some reason 1971 went 4 years to 1975 cycle

The Nixon - Watergate era. Couldn't work on a revision until after the Watergate thing was settled.

 

[LarryFine]

Interesting from 1959 onward, excluded 1975, there was 3 years between code cycles. For some reason 1971 went 4 years to 1975 cycle

Maybe no manufacturers came out with new products to mandate.

 

[goldstar]

Maybe no manufacturers came out with new products to mandate.

I'd bet on that one.