Antall eller omfang
Suppliers shall deliver the number of impulse ventilators stated in the tender documentation, but with the minimum stated combined thrust, and maximum size.Six large and 4 smaller ventilators will be delivered in accordance with specifications in the tender documentation chapter D1.Long-section and cross-section for the tunnel are based on the drawings: C01-C05 and D01 and D02. (Overview chapter D2.)Sign plan and general drawings for installations in and by the tunnel will be according to drawing L01-L11. (Overview chapter D2.) Placing of impulse ventilators are also according to the drawings.The 6 main ventilators should be assembled in the roof bays with a profile of approximately 7570, 8960 and 10370. The four smaller ventilators in the roof with approximate profile 7420 and 10406.All ventilators are to be mounted at a height to lower edge = 4.8 m over the roadway. (In consideration of the need for dispensations for heights > 4 m for centric driving.)The delivery includes delivering of impulse ventilators with service switches, vibration guards and suspension system for mounting to 32 mm threaded rock bolts. (Rebars, galvanised and epoxy coated.)All necessary mounting equipment excluding suspension bolts shall be included in the delivery.Soft starters will be delivered for all ventilators for mounting in boards.The delivery will be taken over and mounted by the electrical contractor for the tunnel.