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Tìm thấy 73948 kết quả.

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6241

BS EN IEC 61557-17:2021

Electrical safety in low voltage distribution systems up to 1 000 V AC and 1 500 V DC. Equipment for testing, measuring or monitoring of protective measures. Non-contact AC voltage indicators (IEC 61557-17:2021).

Electrical safety in low voltage distribution systems up to 1 000 V AC and 1 500 V DC. Equipment for testing, measuring or monitoring of protective measures. Non-contact AC voltage indicators (IEC 61557-17:2021).

6242

BS EN IEC 61557-2:2021

Electrical safety in low voltage distribution systems up to 1 000 V AC and 1 500 V DC. Equipment for testing, measuring or monitoring of protective measures. Insulation resistance.

Electrical safety in low voltage distribution systems up to 1 000 V AC and 1 500 V DC. Equipment for testing, measuring or monitoring of protective measures. Insulation resistance.

6243

BS EN IEC 61557-2:2021-TC

Tracked Changes. Electrical safety in low voltage distribution systems up to 1 000 V AC and 1 500 V DC. Equipment for testing, measuring or monitoring of protective measures. Insulation resistance.

Tracked Changes. Electrical safety in low voltage distribution systems up to 1 000 V AC and 1 500 V DC. Equipment for testing, measuring or monitoring of protective measures. Insulation resistance.

6244

BS EN IEC 61557-3:2022

Electrical safety in low voltage distribution systems up to 1 000 V AC and 1 500 V DC. Equipment for testing, measuring or monitoring of protective measures. Part 3. Loop impedance.

Electrical safety in low voltage distribution systems up to 1 000 V AC and 1 500 V DC. Equipment for testing, measuring or monitoring of protective measures. Part 3. Loop impedance.

6245

BS EN IEC 61557-4:2021

Electrical safety in low voltage distribution systems up to 1 000 V AC and 1 500 V DC - Equipment for testing, measuring or monitoring of protective measures. Resistance of earth connection and equipotential bonding.

Electrical safety in low voltage distribution systems up to 1 000 V AC and 1 500 V DC - Equipment for testing, measuring or monitoring of protective measures. Resistance of earth connection and equipotential bonding.

6246

BS EN IEC 61557-4:2021-TC

Tracked Changes. Electrical safety in low voltage distribution systems up to 1 000 V AC and 1 500 V DC. Equipment for testing, measuring or monitoring of protective measures. Resistance of earth connection and equipotential bonding.

Tracked Changes. Electrical safety in low voltage distribution systems up to 1 000 V AC and 1 500 V DC. Equipment for testing, measuring or monitoring of protective measures. Resistance of earth connection and equipotential bonding.

6247

BS EN IEC 61557-5:2021

Electrical safety in low voltage distribution systems up to 1 000 V AC and 1 500 V DC. Equipment for testing, measuring or monitoring of protective measures. Resistance to earth.

Electrical safety in low voltage distribution systems up to 1 000 V AC and 1 500 V DC. Equipment for testing, measuring or monitoring of protective measures. Resistance to earth.

6248

BS EN IEC 61557-5:2021-TC

Tracked Changes. Electrical safety in low voltage distribution systems up to 1 000 V AC and 1 500 V DC. Equipment for testing, measuring or monitoring of protective measures. Resistance to earth.

Tracked Changes. Electrical safety in low voltage distribution systems up to 1 000 V AC and 1 500 V DC. Equipment for testing, measuring or monitoring of protective measures. Resistance to earth.

6249

BS EN IEC 61557-6:2021

Electrical safety in low voltage distribution systems up to 1 000 V a.c. and 1 500 V d.c.. Equipment for testing, measuring or monitoring of protective measures. Effectiveness of residual current devices (RCD) in TT, TN and IT systems.

Electrical safety in low voltage distribution systems up to 1 000 V a.c. and 1 500 V d.c.. Equipment for testing, measuring or monitoring of protective measures. Effectiveness of residual current devices (RCD) in TT, TN and IT systems.

6250

BS EN IEC 61557-6:2021-TC

Tracked Changes. Electrical safety in low voltage distribution systems up to 1 000 V a.c. and 1 500 V d.c.. Equipment for testing, measuring or monitoring of protective measures. Effectiveness of residual current devices (RCD) in TT, TN and IT systems.

Tracked Changes. Electrical safety in low voltage distribution systems up to 1 000 V a.c. and 1 500 V d.c.. Equipment for testing, measuring or monitoring of protective measures. Effectiveness of residual current devices (RCD) in TT, TN and IT systems.

6251

BS EN IEC 61557-7:2022

Electrical safety in low voltage distribution systems up to 1 000 V a.c. and 1 500 V d.c. Equipment for testing, measuring or monitoring of protective measures. Phase sequence.

Electrical safety in low voltage distribution systems up to 1 000 V a.c. and 1 500 V d.c. Equipment for testing, measuring or monitoring of protective measures. Phase sequence.

6252

BS EN IEC 61557-7:2022-TC

Tracked Changes. Electrical safety in low voltage distribution systems up to 1000 V a.c. and 1 500 V d.c. Equipment for testing, measuring or monitoring of protective measures. Phase sequence.

Tracked Changes. Electrical safety in low voltage distribution systems up to 1000 V a.c. and 1 500 V d.c. Equipment for testing, measuring or monitoring of protective measures. Phase sequence.

6253

BS EN IEC 61587-1:2022

Mechanical structures for electrical and electronic equipment. Tests for IEC 60917 and IEC 60297 series. Environmental requirements, test setups and safety aspects.

Mechanical structures for electrical and electronic equipment. Tests for IEC 60917 and IEC 60297 series. Environmental requirements, test setups and safety aspects.

6254

BS EN IEC 61587-1:2022-TC

Tracked Changes. Mechanical structures for electrical and electronic equipment. Tests for IEC 60917 and IEC 60297 series. Environmental requirements, test setups and safety aspects.

Tracked Changes. Mechanical structures for electrical and electronic equipment. Tests for IEC 60917 and IEC 60297 series. Environmental requirements, test setups and safety aspects.

6255

BS EN IEC 61587-6:2021-TC

Tracked Changes. Mechanical structures for electrical and electronic equipment. Tests for IEC 60917 and IEC 60297 series. Security aspects for indoor cabinets.

Tracked Changes. Mechanical structures for electrical and electronic equipment. Tests for IEC 60917 and IEC 60297 series. Security aspects for indoor cabinets.

6256

BS IEC 61588:2021-TC

Tracked Changes. Precision Clock Synchronization Protocol for Networked Measurement and Control Systems.

Tracked Changes. Precision Clock Synchronization Protocol for Networked Measurement and Control Systems.

6257

BS EN ISO 6165:2022

Earth-moving machinery. Basic types. Identification and vocabulary.

Earth-moving machinery. Basic types. Identification and vocabulary.

6258

BS EN ISO 6165:2022-TC

Tracked Changes. Earth-moving machinery. Basic types. Identification and vocabulary.

Tracked Changes. Earth-moving machinery. Basic types. Identification and vocabulary.

6259

BS EN IEC 61675-1:2022

Radionuclide imaging devices. Characteristics and test conditions. Positron emission tomographs.

Radionuclide imaging devices. Characteristics and test conditions. Positron emission tomographs.

6260

BS EN IEC 61675-1:2022-TC

Tracked Changes. Radionuclide imaging devices. Characteristics and test conditions. Positron emission tomographs.

Tracked Changes. Radionuclide imaging devices. Characteristics and test conditions. Positron emission tomographs.

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