GB/T 18216.1-2021Electrical 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 - Part 1: General requirements (English PDF)

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules of Standardization Documents"

Drafting.

This document is the test of GB/T 18216 "AC 1000V and DC 1500V and below low-voltage power distribution system electrical safety protection measures"

Part 1 of "Inspection, Measuring or Monitoring Equipment". GB/T 18216 has released the following parts.

---Part 1.General requirements;

---Part 2.Insulation resistance;

---Part 3.Loop impedance;

---Part 4.Grounding resistance and equipotential grounding resistance;

---Part 5.Resistance to ground;

---Part 8.Insulation monitoring device in IT system;

---Part 9.Insulation fault location equipment in IT systems;

---Part 12.Performance Measurement and Monitoring Device (PMD).

This document replaces GB/T 18216.1-2012 "Electrical safety protection of low-voltage power distribution systems below 1000V AC and 1500V DC

Test, measurement or monitoring equipment for protective measures Part 1.General requirements, compared with GB/T 18216.1-2012, except for structural adjustments and

In addition to editorial changes, the main technical changes are as follows.

---The terminology is consistent with IEC 60050;

---The measurement of uncertainty is modified according to the formula 4.2 of ISO /IEC Guide98-3.2008 (GUM);

---Updated the references of safety requirements and EMC requirements;

---Updated the reference of signs and operating instructions;

---Updated the references of safety and EMC tests;

---Appendix A contains the explanation of GUM;

---Appendix B puts forward environmental factors.

The translation method used in this document is equivalent to the IEC 61557-1.2019 ``AC 1000V and DC 1500V and below low-voltage power distribution system

Testing, measuring or monitoring equipment for integrated electrical safety protection measures. Part 1.General requirements.

The Chinese documents that have consistent correspondence with the normatively cited international documents in this document are as follows.

---GB/T 156-2017 standard voltage (IEC 60038.2009, MOD);

---GB/T 18216.8-2015 Electrical safety protection facilities for low-voltage power distribution systems below 1000V AC and 1500V DC

Part 8.Insulation monitoring device in IT system (IEC 61557-8.2007, IDT);

---GB/T 18216.9-2015 Electrical safety protection measures for low-voltage power distribution systems below 1000V AC and 1500V DC

Testing, measuring or monitoring equipment for the test. Part 9.Insulation fault locating equipment in IT systems (IEC 61557-9.2009,

IDT);

---GB/T 18268.1-2010 Electromagnetic compatibility requirements for electrical equipment for measurement, control and laboratory use-Part 1.General

Requirements (IEC 61326-1.2005, IDT).

Introduction

IEC 60364-6 specifies the first test, continuous monitoring and adjustment of these equipment in TN, TT or IT systems.

Standardized conditions for the post-adjustment test. In addition to the general standards that specify the implementation of these tests, IEC 60364-6 also includes

To verify the requirements. Only in a few cases, such as when measuring insulation resistance, does IEC 60364-6 include the measuring device used.

Details of the characteristics of the settings. Circuit diagrams given as examples in IEC 60364-6 and cited in the main text of the document are generally not applicable

actual use.

When dangerous voltages appear in the electrical installation and the equipment is improperly used or defective, the implementation of the test in the electrical installation can easily cause concern.

outer. Therefore, in addition to simplifying the measurement, technicians also need to rely on measurement devices that ensure the safety of the measurement method.

The application of the general safety rules for electrical and electronic measuring devices (IEC 61010-1) for protective measures is in itself insufficient. in

Measurements in power installations are not only harmful to technicians, but also to third parties due to different measurement methods.

Similarly, in order to obtain an objective judgment about the equipment, such as periodic tests, continuous insulation monitoring, or

In the case of performance assurance, an important prerequisite is to use measurement devices from different manufacturers to obtain reliable and comparable measurement results.

The purpose of GB/T 18216 is to specify uniform principles that are consistent with the above characteristics. These principles are applicable to nominal voltage AC

Measuring and monitoring equipment for electrical safety test and performance test in 1000V and DC 1500V and below systems. GB/T 18216

It is proposed to consist of ten parts.

---Part 1.General requirements. The purpose is to establish a low-voltage power distribution system with nominal voltages of AC 1000V and DC 1500V and below

General requirements for test equipment used for electrical safety measurement and monitoring in the system.

---Part 2.Insulation resistance. The purpose is to establish that the measurement is suitable for the insulation of equipment and electrical installation equipment in a non-excited state

Relevant requirements for resistance equipment.

---Part 3.Loop impedance. The purpose is to establish between the measuring line conductor and the protective conductor, between the line conductor and the neutral conductor, or between the two conductors.

The relevant requirements of the loop impedance device between the line conductors.

---Part 4.Grounding resistance and equipotential grounding resistance. The purpose is to establish the grounding conductor, protective grounding conductor and

And the relevant technical requirements for the resistance of the equipotential bonding conductor.

---Part 5.Resistance to ground. The purpose is to establish requirements for measuring equipment that uses AC voltage to measure resistance to earth.

---Part 6.Effectiveness of Residual Current Device (RCD) in TT, TN and IT systems. The purpose is to establish that the measurement is suitable for

Relevant requirements for test equipment for the effectiveness of protective measures for residual current devices in TT, TN and IT systems.

---Part 8.Insulation monitoring device in IT system. The purpose is to establish relevant requirements for insulation monitoring devices in IT systems.

---Part 9.Insulation fault location equipment in IT systems. The purpose is to establish the phase of insulation fault location equipment in the IT system.

Close requirements.

--- Part 10.Combination measuring equipment for testing, measuring or monitoring protective measures. The purpose is to establish test, measurement or monitoring

The related requirements of the equipment in which a variety of measurement functions or measurement methods are combined together.

---Part 12.Performance Measurement and Monitoring Device (PMD). The purpose is to establish a comprehensive measurement and monitoring of electrical parameters in the distribution system.

Meet the relevant requirements of performance measurement and monitoring devices.

The following general requirements are specified in this document (the other parts of GB/T 18216 formulate supplementary requirements or differences).

---Protection against external voltage;

---Protection level II (except insulation monitoring device and insulation fault location system);

---Requirements and safety protection for dangerous contact voltages in measuring devices;

--- Judgment requirements for wiring methods involving wiring errors in the tested equipment;

---Special mechanical requirements;

---Measurement methods;

---Measured;

---The regulation of maximum working uncertainty;

---Provisions for influence quantity test and work uncertainty calculation;

---The threshold value of the uncertainty of the measuring device specified in each part;

--- Type and routine test types and conditions required for the test.

AC 1000V and DC 1500V and below

Testing of electrical safety protection measures for low-voltage power distribution systems,

Measuring or monitoring equipment Part 1.General requirements

1 Scope

This document specifies the nominal voltage AC 1000V and DC 1500V and below low-voltage power distribution system for electrical safety measurement

And general requirements for monitoring test equipment.

When measuring equipment or measuring devices involve the measurement tasks of various measuring equipment covered by GB/T 18216, GB/T 18216

Each relevant part is applicable to each relevant measurement task.

Note. The term "measuring equipment" refers to "testing, measuring and monitoring equipment" in this document.

Other parts of GB/T 18216 may specify supplementary requirements or differences.

This document does not include functional safety or network safety.

2 Normative references

The contents of the following documents constitute the indispensable clauses of this document through normative references in the text. Among them, dated quotations

Only the version corresponding to that date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to

This document.

GB/T 4208-2017 Enclosure protection class (IP code) (IEC 60529.2013, IDT)

IEC 60038.2009 Standard Voltage (StandardVoltages)

IEC 61010-1.2010 AMD1.2016 Safety requirements for electrical equipment for measurement, control and laboratory use Part 1.General

Requirements (Safety requirements for electrical equipment for measurement, control and laboratory use-

Part 1.Generalrequirements)

IEC 61010-2-030.2017 Safety requirements for electrical equipment for measurement, control and laboratory use Part 2-030.

Or special requirements for measuring circuit equipment (Safety requirements for electrical equipment for measurement, control,

andlaboratoryuse-Part 2-030.Particularrequirementsforequipmenthavingtestingormeasuring

circuits)

IEC 61010-2-032 Safety requirements for electrical equipment for measurement, control and laboratory use Part 2-032.For electrical tests and measurements

Special requirements for handheld and hand-controlled current sensors (Safety requirements for electrical equipment for measurement,

control,andlaboratoryuse-Part 2-032.Particularrequirementsforhand-heldandhand-manipulated

currentsensorsforelectricaltestandmeasurement)

IEC 61010-2-034.2012 Safety requirements for electrical equipment for measurement, control and laboratory use Part 2-034.Insulation resistance measurement

Special requirements for measuring equipment and dielectric strength test equipment (Safety requirements for electrical equipment for

measurement,control,andlaboratoryuse-Part 2-034.Particularrequirementsformeasurement

equipmentforinsulationresistanceandtestequipmentforelectricstrength)

IEC 61010-031 Safety requirements for electrical equipment for measurement, control, and laboratory use. Part 031.Electrical testing and measurement by hand

Safety requirements for holding and hand control components (Safety requirements for electrical equipment for measurement, control and

laboratoryuse-Part031.Safetyrequirementsforhand-heldandhand-manipulatedassembliesfor

electricaltestandmeasurement)