Power Research

S. Jothibasu ¹, R. Sudhir Kumar ¹, V. S. Nandakumar ¹

Affiliations
1 Energy Efficiency and Renewable Energy Division, CPRI, Bangalore – 560080, Karnataka, IN

Abstract

Solar pumps (water pumps energized by solar photovoltaic power) are being installed in large numbers for irrigation and drinking water pumping applications in the country under various schemes. Automatic test facilities are necessary to ensure quality products are deployed in time. This paper describes a novel method developed for auto constant total head maintaining during solar surface pump testing.

Keywords

Constant Total Head, Novel Method, Solar Pump Testing, Surface Pump.

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K. Jeykishan Kumar ¹, R. Sudhir Kumar ¹

Affiliations
1 Department of Energy Efficiency and Renewable Energy Division, CPRI, Bengaluru – 560080, Karnataka, IN

Abstract

The light sources of high power delivering high intensity is deemed to be harmful to the human skin and eye due to the components of the light exposure containing wavelengths in the ultraviolet (UV), Blue light (400-500 nm) and infrared (IR) regions of visible spectrum. Most of the LEDs contain blue light with peak wavelength of 455 nm which causes various hazards to the retina and skin which varies with the duration of exposure. This introductory paper provides an overall review of IS 16108 series of standards which provides the test procedures for evaluating the optical hazards of LED luminaries. Specifically, the standard defines exposure limits, references measurement techniques and the classification scheme for the evaluation and control of photobiological hazards from all electrically powered incoherent broadband sources of optical radiation, including LEDs (but excluding lasers), in the wavelength range from 200 nm through 3000 nm.

Keywords

Blue Light Hazard, Light-Emitting Diode (LED), Photobiological Safety, Risk Groups.

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