H.1. Any building or room intended to serve as a control point for a retail outlet shall preferably be so located that an attendant in the sales room can see the forecourt and the dispensing area clearly.
I.1. The canopy, if provided, for weather protection shall not adversely effect the ventilation or access to the equipment.
I.2. Canopy heights installed at fuel fore court shall have at least 300mm clearance from the maximum permitted height.
I.3. Wind and seismic load for the canopy design shall be considered as per IS: 875 and IS: 1893 respectively.
I.4. Canopy structure shall be properly earthed as per IS: 3043.
Electrical Power Distribution System
The following elements / components shall be considered in designing the Electrical Power Distribution system in a Retail Outlet.
• Total electrical load for the entire Retail Outlet
• Availability, Suitability & Reliability of the relevant agencies grid.
• Incase of power failure, back-up arrangements.
Elements of Protection
J.1 Protection shall be provided to guard against sudden failures viz. neutral disconnection and against overload, short-circuit & earth fault.
J.2. The motors shall be protected against short circuit and overload.
J.3. Protection shall be provided for variation in voltage, frequency and phase unbalance.
J.4. The Retail Outlet operating after sunset, emergency lighting with battery backup shall be provided near the dispenser, sales room and electrical room.
The earthing system shall be designed as per IS 3043 and following procedures
shall be followed:-
K.1 All metallic structure, pipe fittings and enclosures of electrical equipments shall be connected to earth.
K.2. Equipment rated up to 230 V, 1-phase supply, the enclosure shall be grounded at least one point.
K.3. Equipment rated above 400 V, 3-phase supply, the enclosure shall be grounded at least at two separate points.
K.4. Two earth pits shall be provided for each of transformer / DG set neutral earthing, equipment earthing.
K.5. All earthing pits except DG neutral and instrument / IT earthing shall be connected through grid (s).
K.6. In lightning prone areas, a risk assessment shall be carried out for need of lightning protection and guidelines given in IS 2309 shall be followed.
Emergency Stop System
L.1. Emergency stop system shall be provided to cut off the power supply to all metering pumps/ dispensing equipment and associated equipment, other than certified intrinsically safe equipment at Sales Building. On actuating any of these push buttons, electrical power supply to entire PRO shall be isolated instantaneously.