Laboratory Testing for Off-Grid Fans


CLASP is an international non-profit organization whose mission is to improve the environmental and energy performance of the appliances and related systems we use every day, lessening their impacts on people and the world around us. CLASP develops and shares transformative policy and market solutions in collaboration with global experts and local stakeholders.

CLASP serves as the Operating Agent for the several programs of the Global Lighting & Energy Access Partnership (Global LEAP), an initiative of the Clean Energy Ministerial (CEM) to catalyze and support commercial markets that deliver clean energy access products and services to un- and under-electrified communities throughout the developing world. Global LEAP does this by developing product quality assurance frameworks, promoting demand-side super-efficiency, and encouraging collaboration among donors and other institutions.

To support current and future programmatic efforts, and the development of the global off-grid appliance market, Global LEAP is developing off-grid appliance test methods. To gauge the costs and feasibility of these methods, CLASP is soliciting off-grid fan testing cost estimates from qualified laboratories. Several Global LEAP programs will require a significant amount of laboratory testing over the next several years, and laboratories that respond to this Request for Quotation will be shortlisted for the forthcoming testing activities. Information related to the background, test parameters and methods, submittals, and timeline for this RFQ is provided below.


Fans are one of the most demanded appliances categories in un- and under-electrified regions where off-grid energy systems are used. However, fans present significant technical challenges to off-grid energy systems since their operation can be energy-intensive, and they can quickly drain battery energy if left running unattended. Another key challenge to the off-grid fans market, and thus to related energy access goals, is the damage to the market caused by low-quality, energy-inefficient, cost-ineffective products. Such products spoil the end-user experience, creating another barrier to market development.

In response to this challenge, Global LEAP is currently collaborating with off-grid energy industry stakeholders, appliance manufacturers, policymakers and test facilities to develop a test method to evaluate the quality, durability, energy performance and off-grid appropriateness of off-grid fans. Once established, this test methodology will be utilized by the Global LEAP Outstanding Off-Grid Appliance Awards program and other Global LEAP market transformation programs. It also will be made available to off-grid industry and policy stakeholders.

Global LEAP wants to ensure that testing costs are appropriate and affordable for off-grid market stakeholders. To this end, CLASP is requesting detailed quotes – with line item cost breakdowns for each referenced test method (as listed below) – from qualified test laboratories. 

Test Parameters and Methods

The Global LEAP off-grid fan test method heavily leverages existing widely-used methods (i.e. IEC) except for durability testing, where it follows a Chinese test method (please see Appendix A for detailed description of durability tests). In some cases, the referenced IEC methods are modified to reflect what makes a fan appropriate for off-grid application. The detailed parameters, referenced test methods and notes and modifications are provided in Table 1, below.

Table 1: Test Parameters and Referenced Test Method


Referenced Test Method

Notes & Modifications

Overall Quality Inspection

No referenced test method

  • Please refer to Appendix B for detailed description.

Air Delivery

IEC 60879 – 1986: Clause 9.4

  • No modifications

Fan Speed

IEC 60879 – 1986: Clause 9.5

  • No modifications

Power input

IEC 60879 – 1986: Clause 9.6

  • No modifications

Energy Efficiency Value

IEC 60879 – 1986: Clause 2.12

  • Air delivery divided by power input


GB/T 13380 – 2007: Clause 6.9 to 6.12

  • No Modifications


IEC 60704-2-7:1997

  • No Modifications

Drop Test

IEC 62257-9-5:2013 Clause W.4.1 (Drop Test)

  • No Modifications

Physical Ingress Test

IEC 62257-9-5:2013: Clause U.4.3 (Simplified IP inspection for ingress of solid foreign objects)

  • No Modifications

Fan Blade Guard

IEC 60335-2-80: Clause 20.101

  • No Modifications

Tests under harsh environment

IEC 60068-2-78

IEC 60879 – 1986: Clause 9.4

IEC 60879 – 1986: Clause 9.5

IEC 60879 – 1986: Clause 9.6

  • Subject fan to +40 °C and 95% humidity for 24 hours;
  • Measure air delivery, fan speed and power input.

Tests under fluctuating voltages

IEC 60879 – 1986: Clause 9.4

IEC 60879 – 1986: Clause 9.5

IEC 60879 – 1986: Clause 9.6

  • Measure air delivery, fan speed and power input under over-voltage condition (+15% of rated voltage) and under-voltage condition (-15% of rated voltage);

Additional information on the proposed Global LEAP test method for off-grid fans are available upon request.


Laboratories that wish to respond to this RFQ must first register as a CLASP Implementing Partner. Registration is easy, and must be completed via the CLASP website before final submittal.

Applicants are required to submit one file with required information as listed below. The file should be named as per the following example:  “Organization Name: RFQ5-15

The quotation for off-grid fan testing must include the following elements:

  • Test laboratory profile, including ISO/IEC 17025 accreditation and a summary of qualifications relevant to this assignment:
    • IEC 60879 – 1986
    • IEC 60704-2-7:1997
    • IEC 62257-9-5:2013
  • IEC 60068-2-78
  • A summary of regional presence, especially in Africa and Asia, and related experiences of conducting testing for fans or off-grid products, including any experience in round robin testing.  
  • A summary of qualifications of key personnel that will be engaged in test, aloning with a description of each person’s role
  • Detailed cost estimate (in US Dollars) outlining testing cost and duration for one sample and ten samples respectively, as well as the time required for each test, as specified in the table below.
  • In addition, any input on the design and workability of the proposed test method and suggestions for improvement, as appropriate.


Estimates for One Samples

Estimates for Ten Samples

Cost (USD)



Cost (USD)



Overall Quality Inspection

Noise Test

Air Delivery in normal conditions

Power Input in normal conditions

Fan Speed in normal conditions

Air Delivery in under- and over-voltage conditions

Power Input in under- and over-voltage conditions

Fan Speed in normal under- and over-voltage conditions

Air Delivery after harsh environment exposure

Power Input after harsh environment exposure

Fan Speed after harsh environment exposure

Physical Ingression Protection Test

Durability Test

Drop Test



The deadline for quotation submission is June 26 2015. Quotations must be submitted online via the CLASP website using the “Submit Bid” button above and filling out all the requested information. Late or incomplete quotations or quotations submitted directly to anyone at CLASP will not be accepted.

All questions may be addressed to Matt Jordan at mjordan@clasp.ngo. The last date for submission of questions related to this RFQ is June 24 2015. We request all inquiries be made by e-mail and not by phone.  

Information for Potential Applicants

Confidentiality Statement

All data and information received from Global LEAP designees, CLASP, appliance manufacturers, or other off-grid clean energy access industry stakeholders for the purpose of this assignment are to be treated confidentially and are only to be used in connection with the execution of this assignment. All intellectual property rights arising from the execution of this assignment are assigned to Global LEAP donors and their designees. The contents of data sets or written materials obtained and used in this assignment may not be reused or disclosed to any third parties without the expressed advance written authorization of Global LEAP designees.

Appendix A: Durability Test

The Durability Tests are used to evaluate the durability of regularly used fan components (i.e. speed regular switch, angle adjustment device, height adjustment device and clamping device). The test procedure follows the Chinese fan test method, GB/T 13380-2007 and the translated test procedures are as follows:

Speed regulator switch

  1. Ensure that the fan is connected to a power source.
  2. Set the speed regulator switch to the “Off” position.
  3. For each test cycle, sequentially switch the regulator to each regulated speed position and then back to the “Off” position.
  4. Repeat for a total of 10,000 cycles.
  5. Document any failure of the component in the lab report.

Angle adjustment device

  1. Ensure that the fan is disconnected from its power source.
  2. Set the angle adjustment device to its maximum elevation position.
  3. For each test cycle, adjust the angle adjustment mechanism to its maximum depression position, and then return it to the maximum elevation position.
  4. Repeat for a total of 500 cycles.
  5. Document any failure of the component in the lab report.

Height adjustment device

  1. Ensure that the fan is disconnected from its power source.
  2. Set the height adjustment device to its highest position.
  3. For each test cycle, adjust the height adjustment device to its lowest position, then return it to the highest position.
  4. Repeat for a total of 500 cycles.
  5. Document any failure of the component in the lab report.

Clamping device

  1. Ensure that the fan is disconnected from its power source.
  2. Fully open the clamping device.
  3. For each test cycle, fully close/tighten the clamping device, then return it to its open position.
  4. Repeat for a total of 500 cycles.
  5. Document any failure of the component in the lab report.

Appendix B: Overall Quality Inspection

  1. Inspect product components (including but not limited to enclosure, blade, bearings, wiring, fittings, and connections) for quality and workmanship and note any visible defects.
  2. Inspect the fan blade guard in accordance with Clause 20.101 of IEC 60335-2-80.
  3. Inspect other safety measures for quality and workmanship and note any obvious hazards.
  4. Review the product packaging and nameplate to verify that the following information is clearly visible: manufacturer name, product name, model number, input voltage, rated air delivery, energy efficiency value, fan size, fan speed, number of blades, number of regulator speeds, date of manufacture, and conformity with standards.
  5. Review product instructions, user manual, and warranty information.
  6. Examine the product and determine whether a low voltage disconnect / reconnect (LVD/LVR) circuit or similar automatic shutdown mechanism are available to protect batteries from unintended power drain.
  7. Take photographs of the product, including packaging, front view, side view, and nameplate.
  8. Document findings in test report.