Elektrotechnika

This part of IEC 62271 is applicable to prefabricated solid-insulation enclosed switchgear and controlgear assemblies designed for:

alternating current;

rated voltages above 1 kV and up to and including 52 kV;

service frequencies up to and including 60 Hz;

indoor installation;

areas limited to authorized personnel;

The assembly can include air-insulated and/or fluid-filled compartments.

For components installed in a solid-insulation enclosed switchgear and controlgear, this document supplements or even replaces in some cases, the requirements as stated by the individual product standards.

The list of components which may be inside the solid-insulation enclosed switchgear and controlgear is not limited to the ones explicitly cited in this document.

This part of IEC 60079 applies to service facilities and covers only those factors related to overhaul, repair or reclamation of Ex Equipment specifically designed for hazardous areas, where the hazard is caused by explosive atmospheres. Ex Equipment may be overhauled, repaired or reclaimed to mitigate deficiencies identified during operation inspection and maintenance:

NOTE 1 Service facilities can include users, manufacturers and third party repairers

It does not include:

advice on cable and wiring systems which can require a renewal when the equipment is re-installed;

Type of Protection “m”;

Ex Components;

Requirements for manufacturers who overhaul and repair equipment which they have manufactured,

NOTE 2 Manufactures who overhaul and repair equipment which they have manufactured might want to take into consideration the principles in this document with respect to marking and user records for the user’s verification records.

IEC 62841-1:2014, Clause 1 is applicable, except as follows:

Replacement of the third paragraph:

The rated voltage is not more than 250 V for single-phase a.c. or d.c. tools, and 480 V for three-phase a.c. tools.

Addition:

This document applies to hand-held cut-off machines fitted with

one bonded reinforced wheel of Type 41 or Type 42; or

one or more diamond cutting wheels with peripheral gaps, if any,

having no positive rake angle for flush cutters, power cutters and wall chasers; and

not exceeding 10 mm and having no positive rake angle for cut-off machines other than flush cutters, power cutters and wall chasers;

and with

a rated speed not exceeding a peripheral speed of the wheel of 100 m/s at rated capacity; and

a rated capacity not exceeding 430 mm.

NOTE 101 An example of a permitted diamond cutting wheel construction is shown in Figure 101.

These tools are intended to cut materials such as metals, concrete, masonry, glass and tile.

This document does not apply to:

cut-off machines that can be converted to a grinder, sander or polisher, which are covered by IEC 62841-2-3;

circular saws which are covered by IEC 62841-2-5; and

die grinders and small rotary tools which are covered by IEC 62841-2-23;

tools intended to cut wood, except for utility cutters;

cut-off machines fitted with a bonded reinforced wheel of Type 42 with a diameter exceeding 230 mm.

This document includes a series of methods for testing along with their appropriate severities and conditions for measurements and tests designed to assess the ability of specimens to perform under expected conditions of transportation, storage and all aspects of operational use.

This part of IEC 63522 series specifies the general condition conditions to be applied for all testing if not otherwise specified and provide general guidance to be used in conjunction with all other IEC 63522 parts.

Table 1 – Table of all related standards

Part

Title

IEC 63522-0

General and Guidance

IEC 63522-1

Visual inspection and check of dimensions

IEC 63522-2

Mechanical tests and weighting

IEC 63522-3

Relay coil properties

IEC 63522-4

Dielectric strength test

IEC 63522-5

Insulation resistance

IEC 63522-6

Contact-circuit resistance (or voltage drop)

IEC 63522-7

Functional tests

IEC 63522-8

Timing Test

IEC 63522-9

Climatic tests

IEC 63522-10

Heating

IEC 63522-11

Enclosure Protection and Degree of Protection

IEC 63522-12

Internal moisture

IEC 63522-13

Corrosive atmospheres –Corrosive atmospheres due to sulfur impact

IEC 63522-14

Mould growth

IEC 63522-15

Robustness of terminals

IEC 63522-16

Soldering

IEC 63522-17

Shock, Acceleration and Vibration,

IEC 63522-18

Thermal resistance of the coil heating

IEC 63522-19

Electrical Endurance

IEC 63522-20

Mechanical Endurance

IEC 63522-21

Thermal Endurance

IEC 63522-22

Limiting continuous current

 

IEC 63522-24

Load transfer

IEC 63522-25

Magnetic interference

IEC 63522-26

Crosstalk and insertion loss

IEC 63522-27

Electrical contact noise

IEC 63522-28

Thermoelectric electromotive force (e.m.f.)

IEC 63522-29

Capacitance

IEC 63522-30

Contact sticking (delayed release)

IEC 63522-31

Magnetic remanence

IEC 63522-32

Acoustic noise

IEC 63522-33

Continuity of protective earth connection

IEC 63522-34

Fluid contamination

IEC 63522-35

Resistance to cleaning solvents

IEC 63522-36

Fire hazard

IEC 63522-37

Teminal temperature rise at rated load

IEC 63522-38

Mechanical interlock

IEC 63522-39

Insertion and withdrawal force

IEC 63522-40

Short circuit testing

IEC 63522-41

Insulation coordination

EC 63522-42

EMC

IEC 63522-43

Prof tracking index (PTI)

IEC 63522-44

Corrosive atmosphere - Salt mist

IEC 63522-45

Maximum frequency of operation

IEC 63522-46

Impulse voltage test

IEC 63522-48

Contact failure rate test

IEC 63522-49

Long term stability of sealing

IEC 63522-52

Coil overvoltage

IEC 63522-54

Critical DC load current

IEC 63522-55

Maximum DC load breaking capacity

IEC 63522-56

Ball Pressure Test