NO.
Description Remarks
1 Transformer core to be aluminium instead of copper
2 Feeder cables to be aluminium instead of copper except life safety
merge both lighting and power system in each floor to be fed from single panel for
3 normal system and another for emergency
4 lighting control system in basement floor will be via wireless motion detector and
modules in LCP - Life time 50000 hr.
5 Snchronizing panel in generators' operation is not suitable due to the generators are
working as standby not prime
6 Spur is not recommended to be applied
7 Merge both normal and emergency cable trays to be laid on single cable tray with dim
60 cm except life safety system .
8 Local vendor list approach
Reduction number of cubicles of medium voltage switchgear to be 14 cells instead of
9 16 cells with max rating not exceed 7 MVA
10 Lighting miniture circuit breaker type B instead of type C
11 Utilize miniture circuit breaker instead of molded case with consider short circuit
limitation
Custmoize neutral cables of MCC panels according to THD % - in best case the
12 minimum size of neutral cable will be 25 mm AL or 16mm CU
13 utilize Busway riser in case of number of cables on each phase 5 cables or more.
14 Utilize microwave luminaires for basement parking lots floors for lighting control
15 Lighting circuits should be 2 mm cu pvc in case of short distances and small loads
Check cable tray height to be 50 mm instead of 100 mm; and pass up using cable tray
16 cover to minimize the cost impact.
17 Apply single lighting / power circuit in small stores to minimize lighting switches
18 Fire cable resistance should be utilized in the same fire zone only not all the whole
cable routes
Lighting control in indoor parking (garage) should be applied by on/off luminares and
19 motion sensors control or by using luminaires with built-in motion sensor.
20
