Supply Voltage :
– 3 phase 4 wire system, 380 volts ±10%
– Single-phase 2 wire system, 220 volts ±10%
Frequency : 50 Hz with variation maintained within ±10-15%
Power Factor : Not less than 0.85 lagging
The following rules must be complied with:
a.Starting arrangement of motors: All motors must have independent automatic protection against excessive current using one of the following starters:
- i.Up to 5 HP : Direct-on-line
- ii. 5 to 25 HP : Star-Delta.
- iii. Above 25 HP : Auto transformer
b. All electrical installation work from source of supply at the exhibition must be carried out solely by the Organiser’s official contractor.
c. Exhibitors requiring different voltages, stabilizers, frequency or special connections to equipment should arrange for their own transformers, converters, boosters, etc. and keep the Organiser informed.
d. All electrical equipment and connection downstream from Organisers supply should be tested and appropriately grounded and approved by the Exhibitor’s (or Exhibitor’s appointed contractor’s) local licensed electrical engineers prior to turning on the electrical supply.