Smoke extraction fans will be tested at the Matinkylä, Finnoo and Kaitaa metro stations and on the rail sections and the shafts (Tiistilä shaft at the address Suomenlahdentie 15, the Suomenlahdentie shaft at the address Suomenlahdentie 22 and Hyljetie shaft at the address Hyljetie 6) between them at night between 13 December and 17 December (week 50):
- at night between 13 December and 17 December from Matinkylä to Finnoo
- at night between 14 December and 15 December from Finnoo to Kaitaa
During the testing, a whirring sound may be heard in the vicinity from time to time. The smoke extraction fan tests will be carried out at night between 11:45 pm and 5 am when the metro is not running. The plan is to use the smoke extraction fans at the lowest power possible to avoid making noise.
Smoke extraction fans are used in case of fire to blow smoke away from the underground facilities along fire-compartmented routes into the outside air. There are smoke extraction fans in the metro line’s vertical shafts and at the metro stations’ eastern and western ends. The testing of smoke extraction fans is related to the testing of the West Metro’s Matinkylä–Kivenlahti section. The functionality of the systems is also always tested at the adjacent station, i.e. in Finnoo’s case, testing will also take place on the systems of the already operating metro station at Matinkylä. All in all, 15 smoke extraction fans have been installed on the Matinkylä–Kivenlahti section. There are 32 smoke extraction fans on the Ruoholahti–Matinkylä section.
We apologise for any inconvenience caused by the testing.
Further information
Janne Ilkanheimo, Commissioning Engineer, West Metro project, tel. 0400 896 672
Länsimetro’s feedback line (Mon–Fri, 9 am to 1 pm): 050 377 3700