Position of the Russian National Standardization Committee TC — 234 on the draft international standard IEC 62642-2-2.

Position of the Russian National Standardization Committee TC 234 on the draft international standard IEC 62642-2-2.

Position of the Russian National Standardization Committee TC 234 on the draft international standard IEC 62642-2-2

The prospect of Russia joining the WTO in the first half of 2011, as well as the formation of the Eurasian Customs Union from July 1, 2012 on the territory of Russia, Belarus and Kazakhstan dictate the need to create a new single economic space, with international standardization being the instrument for forming the market and ensuring competitiveness.

As noted in the article “Standardization in the field of development of technical means of anti-criminal protection of objects and property”, which was published in No. 4-2010 of “Algorithm of security”, the Russian national technical committee for standardization RNTK 234 “Systems of alarm signaling and anti-criminal protection” represents the interests of the country in the international technical committee for standardization IEC TC 79 “Systems of security and systems of alarm signaling”.

Work on participation in the development of draft publications of the IEC (International Electrotechnical Commission) assumes that the Russian technical committee considers draft international standards, guided by the following basic principles:

• maximum consideration of national interests;
• promotion of national standards as international;
• possibility of using an international standard in the Russian Federation as a basis for developing national standards;
• inadmissibility of creating obstacles to the production and circulation of products, performance of work and provision of services in the Russian Federation to a greater extent than is provided for by national legislation;
• the inadmissibility of adopting such international standards, the requirements of which would contradict the requirements of national standards regulating issues related to products (works, services) supplied in the interests of the defense and security of the Russian Federation;
• ensuring conditions for the uniform application of international and national standards in the Russian Federation.

During the IEC TC 79 meeting in Paris in 2008, it was decided to consider as draft international standards documents developed in CENELEC TC 79 (CENELEC is the European Electrotechnical Commission for Standardization), which should lead to the consistent cancellation of individual parts of the series of current international standards IEC 60839.

Currently, the series of current IEC 60839 standards can be presented as a «tree» in Figure 1. Currently, the following national standards developed on the basis of the IEC 60839 series of standards have been introduced and are in effect in Russia: GOST R 50775/IEC 60839-1-1; GOST R 50776/IEC 60839-1-4; GOST R 50777/IEC 60839-2-6; GOST R 50659/IEC 60839-2-5; GOST R 50658/IEC 60839-2-4 and others, this was already discussed in article No. 4-2010 «Security Algorithm».

Table 1 lists the standards developed by the European Electrotechnical Commission (EWI – European Working Item/European Working Subject of CENELEC), proposed as new topics of the work program for the development of draft international standards of the IEC. In order to form the position of the national committee within the framework of the work of TC 234 for participation in voting on a number of documents of the IEC TC 79 at the CDV (Committee Draft for Voting) stage in 2010, work was organized to coordinate these documents with such organizations, members of TC 234, as OJSC Agrus*Spectr, OJSC Rielta, OJSC Ryazan Plant of Metal-Ceramic Instruments, Komplektstroyservis, NPF ZAO Sigma-IS.

The structure of the standards is the same, so we will consider the position of the TC using 79/262/CDV as an example. This standard, like the authentic standard from the IEC 60839 series, applies only to indoor detectors. Outdoor detectors fall outside the scope of the standard as a class.

The main difference concerns the division of detectors into classes:

• 4 classes by climatic impact;
• 4 safety classes depending on the degree of risk.

Table 2 (Table 1 of the IEC draft) lists the events that must be handled according to the classification of infrared detectors. The European standard EN 50131-2-2, proposed as a draft of IEC 62642*2*2, divides passive infrared detectors into 4 safety classes depending on the degree of risk: Class 1 — low risk; Class 2 — above low, but below average risk; Class 3 — average risk; Class 4 — high risk.

Table 2 (Table 1 of the IEC draft) lists the events that must be processed according to the classification of infrared detectors. The European standard EN 50131-2-2, proposed as draft IEC 62642-2-2, divides passive infrared detectors into 4 safety classes depending on the degree of risk: Class 1 — low risk; Class 2 — above low, but below average risk; Class 3 — average risk; Class 4 — high risk. Table 3 (Table 2 of the IEC draft) lists the signals and messages that must be generated by the detector depending on the event. Table 4 (Table 3 of the IEC draft) lists the requirements for motion detection by a passive infrared detector. Analyzing the requirements for detectors of safety class 1, we can say that they are extremely low. Such requirements can be made for an «IR light switch» — if the intruder is not detected the first time, ask him to pass again. Table 3 (IEC) may not take into account that modern wired addressable and radio channel detectors can transmit their own message about each event.

Due to the features of IR passive detectors compared to the authentic standard of the IEC 60839 series:

• requirements for detecting high-speed motion for classes 2 and 3 detectors are reduced, and for class 1 they are absent altogether;
• the time of technical readiness is increased by 3 times;
• requirements for resistance to visual and near infrared radiation have been reduced by more than 3 times;
• sensitivity (movement of 3 m) is not tested when checking detection at high speed.

There are no requirements or tests for noise immunity to movement of a small animal or domestic animals in the detection zone. This function has recently been very common in technical descriptions of detectors.

Modern detectors using microprocessor signal processing have a temperature compensation function in the range of ambient temperatures close to human temperature. This standard also does not contain requirements for this function and its verification. And about the verification of intruder detection. The very name «standard» contains the concept of repeatability of results under the same influences. In the definition of «Standard Walk-test Target» in the IEC project, it is allowed to use a simulator/robot as a SWT/standard walk-test target, provided that it meets the SWT temperature characteristic, which is known as the simulated target. However, the dimensions and characteristics of the simulated target are not given. The arithmetic mean value of the temperature contrast may be from 2.8° C to 4.2° C, the background temperature of the surface directly behind the SWT should be in the range of 15° C to 25° C and should be uniform horizontally in the range of 2° C. The temperature contrast of the SWT can be changed using a film installed in front of the detector. In case of a conflict with the simulated target of the test walk, preference is given to a person. What kind of reproducibility of test results can we talk about under such conditions?! The current IEC 60839-2-6-90, on the basis of which GOST R 50777 was developed, states: «Practical experience shows that convergence and reproducibility of test results are difficult to achieve using a person as a target.» In addition, the IEC project implicitly contains the probability of detection, since the test methodology notes: if the first attempt of the test*walk does not lead to detection of an intrusion, then four subsequent attempts of the test walk should be carried out. All of these subsequent attempts must result in an intrusion being detected for the test*pass to be considered successful.

Taking into account all the above comments, the Russian National Standardization Committee TC 234 voted «against» this IEC draft. Having expressed its point of view on this document, Russia did not allow this draft international standard to be adopted without further revision by a unanimous positive vote of the other members*countries of IEC TC 79. Together with the Russian specialists, the Japanese National Committee also voted «against». It should be noted that most of the comments prepared by the Russian specialists were taken into account and included in the preparation of the final version of the draft international standard IEC 62642-2-2: Alarm systems — Intrusion and burglary alarm systems — Part 2-2: Intrusion detection detectors — Passive infrared detectors. The position of RNTK 234 on document 79/262/CDV, the draft committee of the international standard IEC 62642-2-2 for voting in the first edition, was drawn up in accordance with international standards for submitting comments to IEC documents and sent to the secretariat for Russia's participation in the IEC (RosMEK). In 2010, the Russian National Standardization Committee TC 234 took part in voting on 26 documents of IEC TC 79. And, of course, the most interesting was the voting on the draft series of standards IEC 62642 for voting in the first edition. Russian specialists also did not support a number of other documents, for which technical comments were developed and sent for inclusion in the final version. We would like to intrigue our reader and leave the topics “open” for the following publications, which we hope will be devoted to the work of TC 234 on such IEC TC 79 projects as:

• 79/265/CDV – committee draft for voting on the first edition of IEC 62642-3-5 Ed. 1: Alarm systems – Intrusion and occupancy alarm systems – Part 3-5: Requirements for radio link equipment;
• 79/266/CDV – committee draft for voting on the first edition of IEC 62642-2-3 Ed. 1: Alarm systems – Intrusion and burglary alarm systems – Part 2-3: Requirements for radio wave detectors;
• 79/267/CDV – committee draft for voting on the first edition of IEC 62642-2-4 Ed. 1: Alarm systems – Intrusion and burglary alarm systems – Part 2-4: Requirements for combined infrared and radio wave detectors;
• 79/268/CDV – committee draft for voting on the first edition of IEC 62642-2-5 Ed. 1: Alarm systems – Intrusion and burglary alarm systems – Part 2-5: Requirements for combined infrared and ultrasonic detectors;
• 79/269/CDV – committee draft for voting on the first edition of IEC 62642-2-6 Ed. 1: Alarm systems – Intrusion and burglary alarm systems – Part 2-6: Requirements for magnetic contact detectors.

Since our article is devoted to the issues of international standardization, we would like to finish it with the words of Chinese folk wisdom: «A journey of a thousand kilometers begins with a single step…». And we hope that the participation of Russian specialists in the development of draft international standards of the IEC 62642 series in 2010 will be that very “first” step, which will serve as the beginning of a large interesting bilateral work of Russia’s participation in IEC TC 79.

Links on the topic:

Participation of TC 234 in the work of IEC TC 79 IEC 62642-2-6 and the draft GOST R “Point magnetic contact security detectors”