INSTALACIONES ELÉCTRICAS EN EXTERIORES SOMETIDAS A CONDICIONES SEVERAS (INCLUIDAS MINAS A CIELO ABIERTO Y CANTERAS)

UNE 21621-1:1995 (R2021)

UNE 21621-1:1995 (R2021)

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ELECTRICAL INSTALLATIONS FOR OUTDOOR SITES UNDER HEAVY CONDITIONS (INCLUDING OPEN-CAST MINES AND QUARRIES). PART 1: SCOPE AND DEFINITIONS.

€53.00

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UNE 21621-2:1996 (R2021)

UNE 21621-2:1996 (R2021)

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ELECTRICAL INSTALLATIONS FOR OUTDOOR SITES UNDER HEAVY CONDITIONS (INCLUDING OPEN-CAST MINES AND QUARRIES). PART 2: GENERAL PROTECTION REQUIREMENTS.

€102.00

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UNE 21621-3:1995 (R2021)

UNE 21621-3:1995 (R2021)

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ELECTRICAL INSTALLATIONS FOR OUTDOOR SITES UNDER HEAVY CONDITIONS (INCLUDING OPEN-CAST MINES AND QUARRIES). PART 3: GENERAL REQUIREMENTS FOR EQUIPMENT AND ANCILLARIES.

€71.00

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UNE 21621-4:1995 (R2021)

UNE 21621-4:1995 (R2021)

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ELECTRICAL INSTALLATIONS FOR OUTDOOR SITES UNDER HEAVY CONDITIONS (INCLUDING OPEN-CAST) MINES AND QUARRIES). PART 4: REQUIREMENTS FOR THE INSTALLATION.

€73.00

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UNE 21621-5:1996 (R2021)

UNE 21621-5:1996 (R2021)

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ELECTRICAL INSTALLATIONS FOR OUTDOOR SITES UNDER HEAVY CONDITIONS (INCLUDING OPEN-CAST MINES AND QUARRIES). PART 5: OPERATING REQUIREMENTS.

€60.00

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