At one of our facilities the city electrical inspector red-tagged and condemned the plant parking lot lighting due to a lack of ground conductors in the feed and distribution to the existing light poles. Here is the scope of work the plant came up with. Just looking at input. Thanks
The following is the scope of work that we developed today jointly with plant staff, Iafrate, Ideal Contracting, and Huron Valley Electric:
1. Add a ground conductor from the main feed to the lighting distribution panel in the new pumphouse. This will likely involve pulling out the existing conductors and installing new conductors with the appropriate ground conductor.
2. Because plant maintenance have experienced widespread failure of the thin wall plastic conduits between light poles, we request that all old conduits be replaced between light poles except the runs recently installed.
3. New conduits shall be schedule 80 PVC buried to a depth of 3 feet. A transition shall be made to rigid galvanized conduit and run on the concrete pole base to a new junction box. A rigid conduit shall be run from the junction box into the light pole base and sealed.
4. New conductors shall be installed with the appropriate ground conductor and appropriate grounding at each light pole.
5. The conduits shall be installed by saw cutting the asphalt pavement and excavating a 3 foot wide trench.
6. The trench shall then be backfilled and compacted with clean fill sand, 6? crushed stone base, and 4? 1100T asphalt flush with the adjacent pavement surface.
7. The east-most lot shall be completed first since this lot is closed. Once this lot is opened, ACH will close another lot for lighting repair and so on until the lighting in all four parking lots has been repaired. ACH can close one additional lot during the July shutdown weeks of July 7 and July 14.
8. During the repairs, sufficient lighting shall be maintained in the parking lots that are in use. This may be done by strategic wiring replacement and temporary tie-ins and/or with portable lights with generators protected with concrete barriers.
9. Cost saving alternates should be submitted for consideration.
The following is the scope of work that we developed today jointly with plant staff, Iafrate, Ideal Contracting, and Huron Valley Electric:
1. Add a ground conductor from the main feed to the lighting distribution panel in the new pumphouse. This will likely involve pulling out the existing conductors and installing new conductors with the appropriate ground conductor.
2. Because plant maintenance have experienced widespread failure of the thin wall plastic conduits between light poles, we request that all old conduits be replaced between light poles except the runs recently installed.
3. New conduits shall be schedule 80 PVC buried to a depth of 3 feet. A transition shall be made to rigid galvanized conduit and run on the concrete pole base to a new junction box. A rigid conduit shall be run from the junction box into the light pole base and sealed.
4. New conductors shall be installed with the appropriate ground conductor and appropriate grounding at each light pole.
5. The conduits shall be installed by saw cutting the asphalt pavement and excavating a 3 foot wide trench.
6. The trench shall then be backfilled and compacted with clean fill sand, 6? crushed stone base, and 4? 1100T asphalt flush with the adjacent pavement surface.
7. The east-most lot shall be completed first since this lot is closed. Once this lot is opened, ACH will close another lot for lighting repair and so on until the lighting in all four parking lots has been repaired. ACH can close one additional lot during the July shutdown weeks of July 7 and July 14.
8. During the repairs, sufficient lighting shall be maintained in the parking lots that are in use. This may be done by strategic wiring replacement and temporary tie-ins and/or with portable lights with generators protected with concrete barriers.
9. Cost saving alternates should be submitted for consideration.
