Mtnl Mumbai used Maxcell Fabricated Inner Duct 5621-3 cell in 100 mm duct to lay 27 cables in just three 100mm ducts. Please see the installation report attached.
A demo was given to BSNL NTP Noida for Maxcell Fabricated Inner Duct 3614-1 cell. Maxcell 3614-1 was installed in a 40/33 mm PLB Duct which was already carrying a 14mm 24F cable.One cable of 14mm dia 24F was installed through Maxcell 3614-1.
Please see the attached Demo report.