earshavewalls
Bronze Member
Now that Article 210.4(B) requires common-trip for all circuits sharing a neutral (see the definition of Multiwire Branch Circuit), has anyone else been seeing a lot of engineered plans with notes indicating that each circuit is to have its own neutral?
I think this is the laziest trend I have seen to date! I quote this Article on my plan checks where I see hash marks on the homerun arrows indicating the number and type of conductors to be used and remind them that they must provide multi-pole breakers or listed handle ties for these breakers. The next submittal, typically, has the hash marks removed and a note provided stating that dedicated neutral is to be used for all circuits.
This is just plain lazy! All it will take is a contractor trying to "value engineer" and use MWBC's to save on conductors, for the inspector to send them in for plan revisions. This way, the engineer may be justifying an extra charge, based on a field change made by the contractor.
It seems to me that in these economic times that people would be more fiscally responsible. I remember the days when engineers were hired to SAVE money on a project. Now, they are driving costs up just by being lazy.
I'm just venting, but this is frustrating to me to see customers paying a price for the laziness of the people they hire.
GRRRRRRRRR
Wayne
I think this is the laziest trend I have seen to date! I quote this Article on my plan checks where I see hash marks on the homerun arrows indicating the number and type of conductors to be used and remind them that they must provide multi-pole breakers or listed handle ties for these breakers. The next submittal, typically, has the hash marks removed and a note provided stating that dedicated neutral is to be used for all circuits.
This is just plain lazy! All it will take is a contractor trying to "value engineer" and use MWBC's to save on conductors, for the inspector to send them in for plan revisions. This way, the engineer may be justifying an extra charge, based on a field change made by the contractor.
It seems to me that in these economic times that people would be more fiscally responsible. I remember the days when engineers were hired to SAVE money on a project. Now, they are driving costs up just by being lazy.
I'm just venting, but this is frustrating to me to see customers paying a price for the laziness of the people they hire.
GRRRRRRRRR
Wayne