ASHE_131061_Addendumt_2.pdf

ADDENDUM #2

PROJECT ASHE 13-1061 REPLACE AIRFIELD LIGHTS WITH LED,

AREA F, AVIANO AB, ITALY

Change to read in the description:

4.4.a Furnishing and installation galvanized 12” light bases, 24” depth, recessed type, complete with gasket FAA approved, certified for application subjected to aircraft and other heavy vehicular loads certified IAW FAA L868, type ADB 868B24 xH1PA or equal approved included mounting accessories. Light bases shall be installed in order to have the fixture at road level, Pic.1 shows a picture of a properly in-set flush mounted fixture.

Item shall also include:

• Compliance to L-867 & L-868 AC 150/5345-42 (Current Edition);

• The removal and disposal IAW the Italian codes of any existing light base, the filling in layers of the holes and the compaction to the maximum density and the leveling and repair of the surfaces. Only when unused bases are necessary to be re-used to allow change path of the conduit, they shall be simply closed with solid removable cover and that neither removal/disposal nor returning the site to the condition that existed prior to the installation of the old fixture/base will be necessary;

• New 2 Way cable duct for the HV cables from the closer hand holes of the existing primary circuit cable, approx. 25m. The cable duct shall be realized with a heavy rigid 63 mm diameter PVC pipes, thickness of the pipe walls 4.5 mm, covered with C20/25 Class concrete;

• Coring;

• The equipotential connections of the metallic masses, including the cover and the reinforcement bars, with N07V-K cable, section 16 mm2, complete of terminals, anchoring for the drawing of the cables, cable racks and necessary accessories for the proper installation and service;

• Cut and removal of pavements and sidewalks;

• The excavation of soil of any kind and consistence, including rock, with mechanical means, 70 cm width trench and various depths for the installation of the cable duct in compatible manner with the existing utilities. The average depth of the trench shall be 90 cm;

• The leveling and the compaction of the bottom of the trench and the addition of necessary excavation for the construction of the manholes;

• The installation of warning red PVC tape with the writing “HV CABLES”;

• The filling in layers of the trenches and the compaction to the maximum density;

• The leveling and repair of the surfaces;

• The transportation to the authorized public dump of the surplus excavated material, including the dump fees;

• Manpower, tools accessories and every other necessary item to provide a job in a workmanlike manner.

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4.4.b Furnish and install primary MV series circuit n.1 receptacle connector and n. 1 plug connector kit for unshielded cable type ADB PRKU1A/ PRKU1B, or equal approved, depending on the section of the primary conductor (to be determined before installation by the contractor).

Item shall also include:

• Compliance to ICAO Aerodrome Design Manual Part 5 and FAA L-823 AC 150/5345-26 (L-823) current edition;

• Heat Shrink Kit type ADB 71A00088-U or equal approved;

• Supply and install approx. 60 m of 6kV cables 1x6 sqmm, single conductor, XLPE insulated, non-shielded, according to the FAA AC 150/5345-7E (L-824 Type C) Specification, ETL and CE certified. The 6kV cables will run in the new 2 Way cable duct;

Connection distance shall consider a solid cable from the previous fixture to the following one. Any unnecessary connection/junction in the electrical circuit shall be avoided;

• 30VA insulating transformer;

• Manpower, cleaning of contacts, tools accessories and every other necessary item to provide a job in a workmanlike manner.

EA 29