Montgomery County Maryland Adopts the 2008 National Electrical Code
On January 12, 2010, the Montgomery County Council approved Executive Regulation No. 15-09. This Regulation adopts the 2008 National Electrical Code (NEC) with local amendments and supersedes Executive Regulation No. 25-04 which adopted the 2002 NEC on April 1, 2005. The 2008 National Electrical Code (NEC) with local amendments becomes effective on March 15, 2010 and applies to all electrical equipment and installations within Montgomery County.
Executive Regulation No. 25-04 had fourteen amendments to the 2002 NEC. The new regulation retains all previous amendments and adds a new amendment. The new amendment was added to Section 230.70(A)(1) of NEC 2008 and requires a shunt trip to disconnect the electrical service in new buildings, excluding one and two family dwellings. The shunt trip is to be located in the Fire Command Center, or where there is no Fire Command Center, at the fire alarm annunciator, or where there is no fire alarm annunciator or Fire Command Center in an appropriately sized and weatherproof fire department access box on the address side of the building. The requirement also applies in existing buildings, excluding one and two family dwellings, where there are significant upgrades to the building electrical service, such as modifying or replacing the switchgear. The amendment was added to correlate with the requirements of Section 11.1.7 Building Disconnect Access of NFPA 1 Uniform Fire Code.
The other amendments include: