CW Milestone – Part 9 - Generator installation & commissioning

Although the trend now a days is to avoid diesel generator on new telecom sites and discovering other energy resources e.g. solar,  as off-grid powers supplies. However due to space restrictions and big CAPEX (capital expenditure i.e. initial investment) as compared to diesel generator, still makes the most favorable option as off-grid source of powers. Installation of diesel generator along with its fuel tank, are considered under the domain of CW in telecom projects. Installation of generator set is important because without it, site cannot be declared as RFI (Ready for Installation).

Therefore following should be taken care of when installing diesel genset (generator set) and its fuel tank and specially following points should be taken care of.

1. The genset and fuel tank would be installed on the top slab as per approved layout.
2. At the same time ATS panel is also installed on the cable ladder along with all connections.
3. The genset is connected to the ATS panel and its alarm cable is also routed to the same panel.
4. The fuel tank and genset are also connected to the main grounding system

CW Milestones Part-6 - Backfilling and top slab pouring

Once the proper curing of the foundation pad and columns has been achieved, backfilling of excavated area has to be started. At instances (as per project demand and mentioned in DEDs) the backfilling is also required for whole site up to a certain level. This is normally required, when EGL at site is lower than its surrounding. Or if there is risk of flooding during some part of year due to excessive rains etc.

In some rollout projects where BTS and Generator pads are under tower, the top slab or pad is supported by columns and is cast monolithically on beams connecting all the columns. And in some projects, there is separate pad for BTS/Equipment and Generator/Fuel Tank. In later case the, the supporting wall (either concrete or bricks) for pads, has to be raised before backfilling.