Electric Celing Type Fans are covered under IS 374:2019. This standard covers the performance requirements for single phase 50 Hz a.c. ceiling fans driven by squirrel cage induction motor, capacitor type and brushless d.c. motor fans up to and including 250 V for household and similar purposes.

Note:

1. The provision of speed regulator operated manually or using remote control device is optional unless demanded by the buyer or user.

2. For the purpose of testing by the inspecting and/or testing authority and/or the buyer, the manufacture shall ensure that the required fan/speed regulator compatible with the fan are supplied along with the fans under testing.

The requirements for safety have been covered in IS 302 (Part 2/Sec 80).

The following parameters shall be considered for grouping of Electric Ceiling Type Fans as per IS 374:2019 for GoL/CSoL:

1. IS 374:2019 covers Electric ceiling fans driven by squirrel cage induction motor (capacitor type) as well as brushless dc motor fans with or without speed regulators/remote control device.

2. For considering GoL / CSoL, electric ceiling fan preferably of the highest fan size intended to be covered in the licence shall be drawn for testing from each Type of fan (ac single-phase ceiling fans driven by squirrel cage induction motor or brushless dc motor fans) in order to cover all the fan sizes of the particular Type tested.

3. If electric ceiling fan of any rated voltage is tested, fans of other lower rated voltages may also be covered.

4. If electric ceiling fan of higher insulation class is tested, fans with lower insulation class may also be covered.

5. If fans with speed regulator / remote control device is tested, fans of the same type without speed regulator/remote control device may also be covered.

Tests

The specified tests must be conducted for Electric Ceiling Type Fans.

• Earth Continuity Test

• Electric Strength Test

• Functional test

• Simple Running Test

2) General Tests

• Stampings

• Blades and Motor

• Enclosure

3) Safety Tests

• Protection against access to live parts

• Power Input and Current

• Heating

• Leakage Current & Electric Strength at Operating Temperature

• Transient Overvoltage

• Moisture Resistance

• Leakage Current & Electric Strength

• Overload Protection of Transformers and Associated Circuits

• Abnormal Operation

• Stability & Mechanical Hazards

• Mechanical Strength

• Construction

• Internal Wiring

• Components

• Supply Connection & External Flexible Cords

• Provision for Earthing

• Screws and Connections

• Clearances, Creepage Distances & Solid Insulation

• Resistance to Heat and Fire

• Resistance to Rusting

• Radiation, Toxicity & Similar Hazards

4) Performance Tests

• Speed and Power Factor

• Speed Regulator

• Starting

• Interchangeability

• Silent Operation

• Test for Harmonic Distortion

• Endurance Test

IS 374:2019 outlines labeling and marking criteria. If the product meets these standards, it can be certified under the Bureau of Indian Standards Act, 2016 and its regulations, and marked with the Standard Mark (ISI Mark). Manufacturers must secure a BIS license from the Bureau of Indian Standards to utilize the ISI Mark. This license is granted following an assessment of manufacturing infrastructure, quality control, testing capabilities, and production processes.

PROCESS FOR BIS ISI MARK CERTIFICATION