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ABNT NBR 16744
Non composite post insulator for a.c. overhead lines with a nominal voltage greater than 1000 V - Definitions, test methods and acceptance criteria
Edition
2019-04-26
ABNT NBR 16953
Composite hollow core station post insulators for substations with a.c. voltage greater than 1000 V and d.c. voltage greater than 1500 V - Definitions, test methods and acceptance criteria
Edition
2021-03-10
ABNT NBR 16954
Composite hollow insulators - Pressurized and unpressurized insulators for use in electrical equipment with rated voltage greater than 1000 V - Definitions, test methods, acceptance criteria and design recommendations
Edition
2021-04-13
ABNT NBR 16973
Aggregates - Determination of material finer than 75 µm sieve by washing
Edition
2021-06-18
ABNT NBR 17063
Composite line post insulators for systems with rated voltage greater than 1000 V - Dimensions and characteristics without stay
Edition
2022-09-15
NF A35-024/A1
Reinforcing steel - Surface welded fabric composed of wires of nominal diameter less than 5 mm
Edition
2022-01-01
UTE C91-003-4U ; UTE C91-003-4:1999-05-01
Electromagnetic Compatibility (EMC). Part 3-4 : limits. Limitation of emission of harmonic currents in low-voltage power supply systems for equipment with rated current greater than 16 A
Edition
1999-05-01
NF C91-003-12/A1 ; NF EN 61000-3-12/A1:2024-04-26
Electromagnetic compatibility (EMC) - Part 3-12 : limits - Limits for harmonic currents produced by equipment connected to public low-voltage systems with input current more than16 A and less than or equal to 75 A per phase
Edition
2024-04-26
NF M88-783
Pressure regulators for gas appliances installed in an energy production site or for gas installations with an upstream pressure lower than 500 mbar
Edition
2023-07-12
PR NF C66-896 ; PR NF EN IEC 62896
Hybrid insulators for a.c. and d.c. for high-voltage applications greater than 1000V AC and 1500 V DC - Definitions, test methods and acceptance criteria