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Illuminating Engineering Society of North America (IES)

Design and produce effective light products and illuminated environments

The Illuminating Engineering Society of North America (IES) publishes standards for the lighting industry. These standards guide lighting professionals and others via recommendations for product designs, output and best practice. IES standards ensure you can:

  • Adopt proven illumination guidelines
  • Improve product performance
  • Design well-lit facilities

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Multiple standardsMinimal standards
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Standards access or budget management, organization-wideLess than 5 employees use standards
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Industry Success Stories

Follow the IHS Energy Blog

Dec 17

PVC Heat Resistance

Dear respected gurus. How can I find heat resistance for pvc 610 plastic sheet. Thickness 0.49 m.m? thank you in advance

Dec 17

Using a Laser Cutter for Paper Projects!

Lasers are pretty versatile—they’ll cut and engrave materials like wood, fabric, plastic, and glass. But we forget how popular they’ve become for cutting paper and cardstock, too. Click here to see a video of intricate paper cutting. Think about how intricate and detailed you can

Dec 17

Short Circuit Study

Hi every one, My distribution network is having 1 incomer source of 220 kv and 3 outgoing transformers of 220/33kV, 65 mva with Z= 14% with 7.5%. Source short circuit value is 50kA. I have done short circut calculation manually and with etap but my results are not matching. With etap SC current o

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