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Guidance on geotechnical control over preparation of grounds and erection of soil structures in power engineering
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Standard instruction for metering electricity in its production, transmission and distribution
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Guidelines for the protection of secondary circuits of power plants and substations from impulse noise
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Technological design standards. Urban and rural telephone networks (NTP 112-2000)
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Guidelines on the protection of 6-1150 kV electrical circuits against lightning and internal overvoltages. All 3 parts
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