Electrical Inspection Lighting & Power

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Mark Gregory
5 years ago
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1 0921 Light Fixtures & Controls Fixtures, controls, conduit, wiring, etc. Interior classroom and corridor lighting consists of T12 fluorescent lamps with magnetic ballasts. In the classrooms the luminaires are suspended direct/indirect steel luminaires with prismatic acrylic diffusers and eight foot (8 ) HO lamps. Each individual luminaire consists of a single channel with a single lamp, supported two feet apart and hung approximately 7 6 above the floor. Most of the classrooms have some form of split switching with either two or three switches controlling the luminaires. There are three parallel runs of these in each classroom, 24 in overall length (40 in the kindergarten rooms). The library has two lamp wraparounds suspended in continuous rows while the corridor and toilet rooms have four lamp lensed troffers. The gymnasium is equipped with surface mounted louvered fluorescent luminaires, also with 8 T12 lamps. Emergency lighting was provided by a number of individual battery operated power stations located throughout the building and wired to specific luminaires. These are quite dated and do not appear to function at present. Wall bracket luminaires with emergency ballasts have been installed in the corridors to provide additional illumination and, more importantly, emergency egress lighting. These are a recent addition. The exit lights have been converted to luminous exit signs with 70 rated visibility. The condition of the lighting system, as with most of the other electrical systems, is dated but functional. All of the fluorescent lamps are T12 and all of the inspected ballasts are the electromagnetic type. These lamps and ballasts represent a former technology and have been superseded by T8 and T5 lamps with electronic ballasts. The classroom luminaires are unique and do a reasonable job of lighting the space. However, every room has at least one (very) noisy ballast and the energy costs are easily half again that current luminaire, lamp and ballast combinations. Again, the classroom fixtures are in pretty good physical shape, and possibly worth salvaging. The library, corridor, offices and toilets luminaires have broken and/or discolored lenses and poor technology electrical systems. Both the electromagnetic ballasts and especially the T12 lamps will become more difficult, and expensive, to replace in the future. T12 lamps are now only available for replacement use. Remaining life expectancy: Five to ten years. June 2005 Glacier Valley Elementary School Condition Survey Report Page 153 of 178

category: Renewal & Replacement RR. Provide new lenses or diffusers as necessary.

2 0921 1: Missing, Broken and Discolored Luminaire Diffusers Some of the library, toilet room and other luminaire diffusers and lenses are either missing, broken, discolored or both. Building wide. category: Renewal & Replacement RR. Provide new lenses or diffusers as necessary. Estimated Construction Cost: $25,800. June 2005 Glacier Valley Elementary School Condition Survey Report Page 154 of 178

0921 2: Lamps Out Some of the various luminaires throughout the building, especially in the gymnasium, have burned out or otherwise non functional lamps. Building wide.

3 0921 2: Lamps Out Some of the various luminaires throughout the building, especially in the gymnasium, have burned out or otherwise non functional lamps. Building wide. category: Renewal & Replacement RR. Provide new lamps or ballasts as necessary. Estimated Construction Cost: $18,200. June 2005 Glacier Valley Elementary School Condition Survey Report Page 155 of 178

0921 3: Under Illuminated Corridors Partly because of the surrounding wall and floor finishes and partly because of the electrical illumination, the corridors appear dimly lit and oppressive.

4 0921 3: Under Illuminated Corridors Partly because of the surrounding wall and floor finishes and partly because of the electrical illumination, the corridors appear dimly lit and oppressive. Some of the luminaires have burned out or otherwise non functional lamps. category: Renewal & Replacement RR. Provide new luminaires, lamps and/or ballasts as necessary. Estimated Construction Cost: $69,800. June 2005 Glacier Valley Elementary School Condition Survey Report Page 156 of 178

5 0921 4: Light Switches on Hinge Side of Entry Door This is more of a convenience item as opposed to a code violation or operational deficiency. Some of the classrooms have the light switches on the hinge side of the entry door as opposed to the latch side. category: Functional F. Relocate the switches or rehang the door as necessary. Estimated Construction Cost: $6,100. June 2005 Glacier Valley Elementary School Condition Survey Report Page 157 of 178

6 0921 5: Emergency Lighting Systems Not Functional The various emergency lighting units throughout the building do not function. These should be removed, the wiring consolidated and the batteries properly disposed. Building wide. categories: Hazardous Material HM and Functional F. Remove emergency lighting systems, remedy wiring, dispose. Estimated Construction Cost: $15,200. June 2005 Glacier Valley Elementary School Condition Survey Report Page 158 of 178

0921 6: Upgrade or Replace Existing Luminaires The existing lighting systems are all older vintage T12 lamps with electromagnetic ballasts. These are both inefficient and generally noisy.

7 0921 6: Upgrade or Replace Existing Luminaires The existing lighting systems are all older vintage T12 lamps with electromagnetic ballasts. These are both inefficient and generally noisy. A comprehensive replacement of all luminaires, lamps and ballasts will provide a quieter, energy saving environment with higher quality illumination for the occupants. category: Energy Conservation E. Provide a building wide replacement of all luminaires, including ballast and lamps. New equipment shall include electronic ballasts with T8 or T5 fluorescent lamps installed into energy efficient fixtures. Estimated Construction Cost: $185,000. June 2005 Glacier Valley Elementary School Condition Survey Report Page 159 of 178

8 0931 Devices & Connections Outlets, disconnects, equipment connections, wiring, etc. The branch circuit wiring appears to be mostly older type TW and THW with some THHN/THWN insulated copper conductors, nearly all in electrical metallic tubing (EMT). Some of the panelboards have correctly color coded circuit connections while most do not. A number of circuits have reduced neutrals. A few circuits are run in either MC cable or flexible metal conduit. All of the mechanical room motor connections are made with flexible metal conduit. Remaining life expectancy: 20 years. June 2005 Glacier Valley Elementary School Condition Survey Report Page 160 of 178

0931 1: Inaccessible Receptacle The terminus end of this cord is apparently attached to an inaccessible receptacle. category: Code (NEC) C, and Functional F.

9 0931 1: Inaccessible Receptacle The terminus end of this cord is apparently attached to an inaccessible receptacle. category: Code (NEC) C, and Functional F. Extend electrical wiring to new wall and provide outlet. Estimated Construction Cost: $1,500. June 2005 Glacier Valley Elementary School Condition Survey Report Page 161 of 178

0931 2: Receptacles by Sinks are not Ground Fault

Replace the existing devices with GFI protected ones.

10 0931 2: Receptacles by Sinks are not Ground Fault Interrupter (GFI) Protected Existing receptacles adjacent to sinks are not GFI protected. category: Code (NEC) C. Replace the existing devices with GFI protected ones. Estimated Construction Cost: $16,000. June 2005 Glacier Valley Elementary School Condition Survey Report Page 162 of 178

11 0931 3: Broken Flexible Metal Conduit The flexible metal conduit is unraveling at the connector for this device. category: Code (NEC) C. Repair and/or replace this connection. Estimated Construction Cost: $1,000. June 2005 Glacier Valley Elementary School Condition Survey Report Page 163 of 178

0931 4: Accessible Power Receptacle and Wiring This power receptacle and its associated wiring are behind an unlocked panel cover providing access to the curious.

12 0931 4: Accessible Power Receptacle and Wiring This power receptacle and its associated wiring are behind an unlocked panel cover providing access to the curious. This installation should be secured, particularly in an elementary school environment. category: Code (NEC) C. Provide a lockable cover to this device. Estimated Construction Cost: $1,000. June 2005 Glacier Valley Elementary School Condition Survey Report Page 164 of 178

13 0931 5: Overloaded Circuits In spite of the additional circuits and plugmold provided with Panels F and G, some of the existing rooms (specifically the kitchen, but also some of the offices and classrooms) still need more general use receptacles and circuits. category: Functional F. Provide additional receptacles and circuits in the kitchen, gymnasium, offices and classrooms to be fed from the new (replacement) panelboards. Estimated Construction Cost: $70,000. June 2005 Glacier Valley Elementary School Condition Survey Report Page 165 of 178

ELECTRICAL SYSTEMS ASSESSMENT Hanover High School

ELECTRICAL SYSTEMS ASSESSMENT Hanover High School ELECTRICAL DISTRIBUTION SYSTEM:?? The existing electrical service consists of an underground primary service originating at a utility pole on Cedar Street,