69 of 124  Construction of Giresun Wastewater Treatment Plant  Tender Dossier Volume 3 Employer’s Requirements  Section 8: Electrical Works  with TS EN 54-5 and TS EN 54-8 and shall be manufactured by a ISO 9001 quality certificated  manufacturer.  The addressable fire warning buttons shall be activated by a plastic film covered breakable glass on  them. When the glass is broken, a micro switch normally in contact shall be free and change position  and shall stay in this position until a new glass is installed. The button shall be testable by a test switch  without breaking the glass. The button shall contain at least 1 illuminated gauge. The button shall be in  accordance with TS EN 54-2 and shall be manufactured by an ISO 9001 quality certificated  manufacturer.  The casing of the siren flasher shall be durable and resistant to heat. The siren flasher shall have a  minimum 100 dB / 1 m sound intensity and 32 different tones. The minimum flashing energy of the  siren flasher shall be 2.5 Joules and the flashing frequency shall be 1 Hz. The siren flasher shall have a  Xenon lamp and shall be visible even from long distances. The protection class of the siren flasher  shall be at least IP 44. The siren flasher shall be in accordance with TS EN 54-3 and shall be  manufactured by an ISO 9001 quality certificated manufacturer.  Electronic Fire Warning Siren Flasher;  Analogue Addressed Fire Warning Button; 8.17.3 Telephone System  Telephone Exchange Unit shall be provided with the accessories. Main Unit shall be located inside the  Administration Building. Telephone lines and sockets shall be foreseen for Administration Building,  Guardhouse, Mechanical and Electrical Workshops, MCC rooms etc. Handset receivers shall also be  provided by the Contractor.  IP type telephone system shall be provided.  Capacity of exchange unit shall be at least 6/40.  Contractor shall also be responsible for bringing of main telephone cable (PD-PAP) from outdoor  telephone panel to the telephone exchange unit.  The contractor shall establish telephone lines (1 for pager system and 2 for other use).  There will be minimum 30 phone terminal and 1 main switchboard console.  8.18 Tools and Maintenance Equipment  The Contractor shall provide all special hand tools needed for the proper maintenance of all the  equipment delivered. All the special tools shall be available and fully functional at the plant before issuing of the Taking  Over Certificate by the Engineer.  Special electrical tools are tools or instruments that are specifically used for testing of electrical  circuits. These special tools required to be supplied by the Contractor are those listed below, in addition to  Volume 3, Section 3, Table 3.1.   necessary maintenance tools for electrical and control system such as insulating carpets, manual  pushing mobile scissors lift for maintenance of outdoor lightning poles, programming devices, 2  pcs of electrical set with bag including full of set etc.  8_Vol3_d4.3_Section 8 electrical works_en_GIR.rev8.doc 