comply per NEC 2017 Section 110.26(C)(2)

Status
Not open for further replies.
H

hhsting

Senior Member
Location
Glen bunie, md, us
Occupation
Junior plan reviewer
Does the following sketch comply per NEC 2017 Section 110.26(C)(2). The Switchgear GHN distance to door is 5 feet however their is a stairway which goes down to the room from door. Would the near edge of the entrance is not less than minimum clear distance specified in Table 110.26(A)(1) PART IN NEC 2017 Section 110.26(C)(2) is it from Switchboard GHN to the door way or is it from Switchgear GHN to the side of stairs?

1640289829003.png
 
Do the dashed lines indicate the working clearances required by 110.26(A)?

There is no clearance required for the space indicated in red that says "less than 3 ft".

There is a violation of 110.26(A) at the bottom end of SGLN2 and right end of SGLN1.

Are all of the switchgear sections rated 1200 amps or more and 6' or more in length?
 
don_resqcapt19 said:
Do the dashed lines indicate the working clearances required by 110.26(A)?

There is no clearance required for the space indicated in red that says "less than 3 ft".

There is a violation of 110.26(A) at the bottom end of SGLN2 and right end of SGLN1.

Are all of the switchgear sections rated 1200 amps or more and 6' or more in length?
Click to expand...
Ah yes true bottom end of SGLN2 and right end of SGLN1 is violation. Yes all three are 1200amps or more and 6' more in length. The dotted line is working space as well as the solid line below see. My question is in reference to bolded part:

110.26(C)(2)(b) Extra Working Space: Where the depth of the working space is twice that required by 110.26(A)(1), a single entrance shall be permitted. It shall be located such that the distance from the equipment to the nearest edge of the entrance is not less than minimum clear distance specified in Table 110.26(A)(1) for equipment operating at that voltage and in that condition.

For GHN what would be the distance from the equipment to the nearest edge of the entrance above code reference bolded part speaking of between GHN and side of stairway labeled in red line " less than 3 feet" or from GHN to the door labeled in red line "5' "?

1640291992425.png
 
Last edited:
The rule applies to the actual path a person would move in to get out of the room. There is no issue here.
 
hhsting said:
You sure? What if GHN blows where it says red line “less than 3 feet”? That stairway would be gone how would person exit then?
Click to expand...
It seems you have made a decision, so why are you asking us to play a guessing game?
It would be better for you to state your opinion and then ask if anyone disagrees or wants to comment. It is not our job to convince you.
 
jim dungar said:
It seems you have made a decision, so why are you asking us to play a guessing game?
It would be better for you to state your opinion and then ask if anyone disagrees or wants to comment. It is not our job to convince you.
Click to expand...

I thought thats what I was doing stating my opinion and see if agreed or not.
 
jim dungar said:
Only after Don stated his opinion, which gave you the opportunity to disagree with him.
Click to expand...

I wanted to know the intent of the code section below in relation to which distance is the intent of the code section and post #1 attachment: from switchboard GHN to side of stair or switchboard GHN to door. It gets complicated when stairs are involved. I never had my mind made up

Below code section:

a single entrance shall be permitted. It shall be located such that the distance from the equipment to the nearest edge of the entrance is not less than minimum clear distance specified in Table 110.26(A)(1) for equipment operating at that voltage and in that condition
 
hhsting said:
I wanted to know the intent of the code
Click to expand...
Have you ever tried to research ROP's and PI's? If you are wanting to find the intent of what put codes into place that's your best bet to find it.

Roger
 
roger said:
Have you ever tried to research ROP's and PI's? If you are wanting to find the intent of what put codes into place that's your best bet to find it.

Roger
Click to expand...

Hi Roger first i really appreciate all of your inputs truly you all are very knowledgeable and i apologize if I came wrong way anyone here.

I did look at 110.26(C)(2) itself but i didnt find anything about 110.26(c)(2)(b) itself and also what happened if the entrance was less then Table 110.26(A)(1)
 
hhsting said:
Hi Roger first i really appreciate all of your inputs truly you all are very knowledgeable and i apologize if I came wrong way anyone here.

I did look at 110.26(C)(2) itself but i didnt find anything about 110.26(c)(2)(b) itself
Click to expand...
Go to the NFPA website and research the ROP's or PI's for the NEC cycle you are interested in, it can take some time but it is enlightening to how the code is created

Roger
 
hhsting said:
Ok what cycle did 110.26(c)(2)(b) come out?
Click to expand...
That's not relevant. The code sections can and do change with each cycle, you will have to work through all if them if you want a true history of what you're looking for.

Roger
 
augie47 said:
Another good read:
View attachment 2558788

:)
Click to expand...

giphy.gif



Sent from my iPhone using Tapatalk
 
roger said:
That's not relevant. The code sections can and do change with each cycle, you will have to work through all if them if you want a true history of what you're looking for.

Roger
Click to expand...

You gotta start somewhere might as well be from when that code section arrived but what do i know

giphy.gif



Sent from my iPhone using Tapatalk
 
Status
Not open for further replies.
Top