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UNE 21135-307:1995
ELECTRICAL INSTALLATIONS OF SHIPS. PART 307: EQUIPMENT. HEATING AND COOKING APPLIANCES.
ELECTRICAL INSTALLATIONS OF SHIPS. PART 307: EQUIPMENT. HEATING AND COOKING APPLIANCES.
Released: 1995-10-16
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38.50 EUR
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38.50 EUR
UNE 21136-12:1990
ELECTRICAL RELAYS. DIRECTIONAL RELAYS AND POWER RELAYS WITH TWO INPUT ENERGIZING QUANTITIES.
ELECTRICAL RELAYS. DIRECTIONAL RELAYS AND POWER RELAYS WITH TWO INPUT ENERGIZING QUANTITIES.
Released: 1990-07-24
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64.90 EUR
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64.90 EUR
UNE 21144-1-1:2012/1M:2015
Electric cables. Calculation of the current rating - Part 1-1: Current rating equations (100 % load factor) and calculation of losses. General
Electric cables. Calculation of the current rating - Part 1-1: Current rating equations (100 % load factor) and calculation of losses. General
Released: 2015-04-22
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28.60 EUR
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28.60 EUR
UNE 21144-2-1/1M:2002
Electric cables. Calculation of the current rating. Part 2-1: Thermal resistance. Calculation of thermal resistance.
Electric cables. Calculation of the current rating. Part 2-1: Thermal resistance. Calculation of thermal resistance.
Released: 2002-09-26
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19.80 EUR
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19.80 EUR
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55.00 EUR
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55.00 EUR
UNE 21144-3-1:2018
Electric cables - Calculation of the current rating - Part 3-1: Operating conditions - Site reference conditions
Electric cables - Calculation of the current rating - Part 3-1: Operating conditions - Site reference conditions
Released: 2018-01-03
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82.50 EUR
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UNE 21144-3-3:2007
Electric cables - Calculation of the current rating - Part 3-3: Sections on operating conditions - Cables crossing external heat sources
Electric cables - Calculation of the current rating - Part 3-3: Sections on operating conditions - Cables crossing external heat sources
Released: 2007-12-27
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70.40 EUR
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70.40 EUR
UNE 21162:1989
METAL COILS FOR USE IN CONDUCTORS AND EARTHING CABLES, FOR OVEHEAD POWER LINES.
METAL COILS FOR USE IN CONDUCTORS AND EARTHING CABLES, FOR OVEHEAD POWER LINES.
Released: 1989-02-24
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58.30 EUR
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58.30 EUR
UNE 21186:2011
Protection against lighting: Early streamer emission lightning protection systems.
Protection against lighting: Early streamer emission lightning protection systems.
Released: 2011-12-21
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141.90 EUR
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141.90 EUR
UNE 21192:1992/1M:2009
Calculation of thermally permissible short-circuit currents, taking into account non-adiabatic heating effects.
Calculation of thermally permissible short-circuit currents, taking into account non-adiabatic heating effects.
Released: 2009-04-22
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16.50 EUR
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16.50 EUR
UNE 212016:2014
Multi-element metallic cables used in data communication for voltages up to and including 250 V.
Multi-element metallic cables used in data communication for voltages up to and including 250 V.
Released: 2014-12-10
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68.20 EUR
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68.20 EUR
UNE 21302-131:2004/1M:2011
Electrotechnical Vocabulary - Part 131: Circuit theory
Electrotechnical Vocabulary - Part 131: Circuit theory
Released: 2011-05-25
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67.10 EUR
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67.10 EUR