Fans

Performance Testing (Physicochemical Scores)

Air Delivery

Air delivery essentially defines the amount of air a fan delivers – a crucial parameter since it translates into how comfortable you feel sitting under a running fan. As per Indian Standards, the air delivery of a 1,200 mm ceiling fan should be a minimum 200 m3/ min; however, for a BEE star-rated fan, air delivery should not be less than 210 m3/min.

Power Input

The power input defines the energy consumption of a fan. Maximum power input for fans of 1,200 mm size shall be 50 watts as per Indian Standards.

Service Value

‘Service value’ denotes the air delivery in metre cube/min, divided by electrical power input to the fan in watts (W) at test voltage and at full speed. In simpler terms, service value means the amount of air delivered per minute per wattage of electricity. As per Indian Standards, the service value of 1,200 mm fans should be a minimum 4.0 m3/min/W.

Starting and Running

The fan shall be capable of starting from rest when 85 per cent of test voltage or lower limit of voltage range is applied with regulator at lowest speed step.

Speed

Fan speed shall not exceed +_ 10% of marked value.

Power Factor

In AC circuits, the power factor is the ratio of the real power that is used to do work and the apparent power that is supplied to the circuit. The power factor can get values in the range of 0 to 1. It shall not be less than 0.90 for ceiling fans.

For General Qualities

Marking/Labelling

The container of ceiling fan shall be marked with the following particulars: a) Manufacturer’s name, trade name (if any) and number b) Rated voltage(s)/voltage range c) Type of fan, AC or DC d) Frequency/frequency range of power supply e) Air delivery f) Size of fan g) Country of manufacture

Other important information to be provided by the Manufacturer covers MRP (in Rs), manufacturing/packing date, standard mark (if any), and warrantee/guarantee. The package shall also include an instruction manual and a warrantee/guarantee card.

All ceiling-fan brands provided complete marking information. Havells, Khaitan, Marc, Crompton Greaves and Orient did not have instruction manual. Packaging

As per Indian Standards, ceiling fans should be packed in strong cardboard box to avoid damage during transportation.

All ceiling fans were packed in hard carton boxes with thermocol/cardboard supports.

Marking/Labelling

The container of ceiling fan shall be marked with the following particulars:

Manufacturer’s name, trade name (if any) and number
Rated voltage(s)/voltage range
Type of fan, AC or DC
Frequency/frequency range of power supply
Air delivery
Size of fan
Country of manufacture

Other important information to be provided by the Manufacturer covers MRP (in Rs), manufacturing/ packing date, standard mark (if any), and warrantee/guarantee. The package shall also include an instruction manual and a warrantee/guarantee card.

Packaging

As per Indian Standards, ceiling fans should be packed in strong cardboard box to avoid damage during transportation.