Exterior breeze-way lighting

[georgeswe]

I have an instance where a superintendant is insisting that fluorescent lighting in a exterior breeze-way between 2 buildings needs to be AB switched. There are no local controls and these lights are controlled by a time clock and the only controls would be if I put the circuit on an additional breaker. He is telling me that I need to do this Due to Title 24 code here in California. These lights are exterior lighting. I have never heard of AB on exterior lighting can anyone let me know if I need to do this?

 

[480sparky]

For those of us who are clueless, what is AB switching?

 

[raider1]

For those of us who are clueless, what is AB switching?

I believe that what the OPer is refering to is dual level switching to comply with the energy codes.

I am not familar with California's Title 24 so I can't really answer for that code.

The IECC (International Energy Conservation Code) requires that exterior lighting be controled by a time clock. There is no additional requirements that an exterior lighting element be dual level switched.

Chris

 

[georgeswe]

sorry for not elaborating and assuming only ppl from california would reply to my post

Title 24 is a code section in the California Building Code that deals with Energy effeciency and has been evolving and getting more stringant since the late 90s. The questions I have is about changes to exterior lighting and if there are any referances to bi-level exterior switching that has been implemented in the newest Title 24 changes.