DD IEC/TS 60815-2:2008

Electric - A general term for the flow of electric charge

Glass - A solid, typically transparent. Brittle and used in windows. The first patent granted in the UK was for Glass.

Ceramic - A hard material with excellent heat resistance made by heating a crystaline substance such as clay

Equipment - A product or good that is tactile.

Voltage - A measurement of volts.

Dimensions - The shapes and angles of something or a situation.

Environment - The conditions and surrounding area.

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