FAQ-Compilation

New approval procedure for installation companies for Hazard Detection Systems (GMA) ("Installer 2.0")

In future, there will be a common certificate for the specialisations of the new installer approval procedure, VdS 3407, which is currently being developed. The old certificates can continue to be used until publication, about which we will inform you.

It is also possible to phase out the other procedures under the old directives and then gradually integrate them into the new procedure. As a rule, it is advantageous for you to change with all procedures at once.

If you wish, you can still switch to the new procedure if your certificate expires after 30.12.2015. Please contact your responsible case worker for this.

Yes. Installations tested in the existing procedure can be evaluated for the new approval procedure. The certificate of the existing approval will be withdrawn and the new certificate will be valid for four years.

 

A switch with ongoing approval can also be made in connection with a new order for one or more additional specialisations in accordance with VdS 3403.

 

Of course, the new directives do not change the existing agreements. However, we will no longer offer the old procedures. From 01.01.2016 onwards, new approvals are only possible in accordance with the new procedure, extensions for a further four years on the basis of the old guidelines until 31.12.2016. After that, only the new approval procedure will be available to you.

You have the possibility to switch to the new procedure as soon as you would have to issue a renewal order under the old guidelines. Of course, all requirements for an extension must be met. If you have more than one approval procedure for the above-mentioned areas of specialisation with us, you can also change over to the other procedures when the first approval expires. All systems that have not yet been tested by the time of the changeover will be exempt.

Video surveillance systems

By the "VdS label". Every approved product must be marked with either the VdS logo or the letters "VdS"; often in conjunction with the VdS approval number (e.g. G103001, M101311 or similar). Products on which the VdS marking is missing are considered not to be approved. The VdS logo is preferably displayed in blue.

In exceptional cases - for example, if the product is too small to display the logo on it - the VdS logo may also be displayed on the product packaging.

In accordance with the guidelines for the approval of installation companies for video surveillance systems, VdS 3442, the requirements for system approval are suspended until the corresponding guidelines are available. Nevertheless, VdS-approved products should be used if possible. However, other suitable products that are not approved by VdS can also be used.

 

Intrusion detection systems

Keywords: Certificate, Original

We have provided our customer with a VdS certificate in triplicate for signature by his insurer.

How should we proceed if the insurance company scans these certificates during mail processing and then destroys them?

Answer:

First of all it should be noted that the certificate should not be issued in triplicate. The performance of the Intrusion Detection System is documented in an (original) certificate including all original signatures, which is to be handed over to the operator (after completion). Insurer and VdS will each receive a copy. In order to avoid that the insurer destroys the original certificate, it should be clearly pointed out to the insurer to refrain from doing so. Furthermore, it is recommended to send the certificate to the insurer without signature in section F (handover confirmation of the installer company) and to point out that the certificate only becomes valid with the handover confirmation of the installer.

Key words: Maintenance, New installation company

The operator commissions another installation company to maintain his VdS Intrusion Detection System.

Does the new installer have to issue a new certificate or at least an installation for certification?

Answer:

The certificate for the installation of a VdS-approved IDS is issued by the installation company that planned and installed the IDS. With the handover of the IDS and the certificate to the operator, the process of certification is completed. The certificate documents the status quo of the IDS at the time of handover. There is no information about which installer is responsible for the maintenance of the IDS.

To answer this question, a distinction must be made between two cases:

  1. If the maintenance of the IDS is carried out by another installation company (approved for the system), this initially has no effect on the certificate (with a new certificate, the installation company might give the incorrect impression that it planned and installed the system itself). Only if the new installer makes changes/extensions to the IDS they have to document them in an annex to the certificate (the certificate itself remains unaffected).
  2. The installer takes over the plant during the construction phase. In this case, the new installer would have to check all services (project planning, installation) performed up to the time of takeover (as if he had planned and built the plant himself). Any defects found should be documented in writing - if only for liability reasons. Once any defects that are found have been rectified, the new installer can complete the system and issue a current certificate (and thus assume liability).

Keywords: Maintenance, Insurance cover

We have currently built two plants where customers refuse to sign a maintenance contract.

The insurer has made this a condition, and has also been informed by us, but will only deal with it in the event of a claim.

  1. What do I have to do in order to behave correctly here in terms of the VdS guidelines? I have already requested in writing and informed about the possible consequences (e.g. lack of insurance cover).
  2. Is the system still considered "VdS-certified" if the maintenance cycles have long expired without any contract maintenance having been carried out?
  3. What happens if the customer signs the maintenance contract after 18 months, for example, and we then carry out maintenance, but this should actually have been carried out every 6 months from commissioning? Is it possible to simply leave the system as VdS-certified if the first maintenance was without defects?

Answers:

  1. The operator must be informed in writing that the Intrusion Alarm System must be inspected once to four times a year (depending on the class or degree) in accordance with VdS 2311 and DIN VDE 0833 and must be serviced annually. If the operator fails to comply with this obligation, the IAS loses its VdS status (the certificate becomes invalid) and the operator may lose his insurance cover. Furthermore, the operator loses his right to demand that the installer contacts him within 2 hours of a fault report and that faults are rectified within 24 hours ( in accordance with VdS 2311, section 13.3, the installer is only obliged to do so if the IAS is regularly maintained by the installer).
  2. If the IAS is not maintained (inspected and serviced) at least once a year - despite the advice of the installer - it no longer complies with the recognised rules of technology in accordance with DIN VDE 0833 and VdS 2311 and loses its VdS status. The operator should be informed of this in writing again after the end of the year (if necessary with a copy to the insurer and VdS (see also above)).
  3. An Intrusion Detection System that has lost its VdS status due to maintenance not being carried out can only regain its VdS status after a comprehensive inspection by the installation company. This check includes at least one maintenance (including repair) and a check for compliance with the VdS guidelines. If deviations are found, the operator and his insurer must agree with the operator and his insurer whether and how the IAS is to be upgraded to the current directive status (system parts whose approval has expired in the meantime may have to be replaced with approved system parts).

Note 1: Different inspection cycles can be agreed with the insurer (e.g. annually instead of quarterly).

Note 2: It is not necessarily necessary to conclude a maintenance contract. It is sufficient if the operator commissions the installer with maintenance at regular intervals.

Keywords: insurer, unacceptable deviations

Is the installer allowed to inform the insurer and/or VdS about the execution of inadmissible deviations at a VdS-certified Intrusion Detection System even if it against the clients will?

Answer:

In principle, it is up to the installer to decide whether to inform the insurer and/or VdS (if necessary, even against the customer's will). However, it is recommended to inform the insurer only with the consent of the operator, e.g. by means of a letter from the installer to the insurer, which the operator sends. In general, it is advisable to protect yourself against possible accusations/faults.

Keywords: validity, certificate

When must the installer withdraw the certificate?

Answer:

The certificate (including any existing installation(s)) is an integral part of a VdS-approved Intrusion Alarm System and is handed over to the operator together with the Intrusion Alarm System. Ownership of the certificate has thus been transferred to the operator and cannot simply be withdrawn by the installer.

If the operator wishes or allows changes to be made which cannot be certified (inadmissible deviations), the installer must inform the operator that the certificate will become invalid in this case or that the IDS will lose its "VdS status" and that this may affect the insurance cover.

Keywords: Changes to installations, information to VdS

Does VdS have to be informed about changes?

Answer:

VdS does not necessarily have to be informed about changes. This might be recommended if the installation is still to be examined as part of the approval procedure.

Keywords: Changes to installations, information to VdS

Does VdS have to be informed about changes?

Answer:

VdS does not necessarily have to be informed about changes. This might be recommended if the installation is still to be examined as part of the approval procedure.

    Keywords: VdS guidelines, standards

    See: Comparability of installed Intruder Alarm Systems (IAS) in accordance with VdS 2311 and DIN VDE 0833.

    Keywords: Acoustic alarm, external signalling device

    Is the installation of acoustic external signalling devices outside the safety area no longer permissible for Intruder Alarm System Class C?

    Answer:

    Nevertheless, external signalling devices (e.g. on customer request) may still be installed outside the security area. In Intruder Alarm Systems of Classes A and C this would then have to be documented as a deviation in the certificate, justified and approved by the operator and his insurer.

    Keywords: attestation, self-certification

    If we assume an IAS in which no insurance company is involved, the following issues arise

    Questions:

    Does the customer have to sign the passage "confirmation of the insurer" in the certificate or is the signature in the block "confirmation of the operator" sufficient?

    In the block "Confirmation of the operator" it is noted: "...explained in detail and agreed with the insurer." May this sentence be deleted in the present case?

    Answer:

    If no insurance company is involved, a corresponding note from the operator in section D (under note) or section E is sufficient. It is not sufficient to delete the reference to the insurer in Section D or E.

    Keywords: attestation, plant components

    In accordance with VdS 2311 (2010-11), not all system components listed in section 6 "Monitoring measures" need to be entered in the installation certificate. Rather, according to footnote 1, it is sufficient if the plant components can be identified from the respective position in the site plan.

    • Is it sufficient in this context, for example, if the offer is attached without prices, the position numbers are visible in it and the corresponding position number from the offer is then noted on the site plan (per door, window, motion detector, etc.)?
    • Is it then also sufficient if a note or a legend is added to the site plan, according to which the position numbers from the offer are used and therefore only the concrete number (e.g. 1.4, 2.3) is shown in the site plan?

    Does this adequately implement the requirements or is an additional document required in which separate entries are to be made? In our opinion, the above procedure only refers to the components mentioned in chapter 6. According to the installation certificate, footnote 1 refers only to section 6 "Monitoring measures".

    In sections 1-5, the respective VdS numbers must be entered directly in the installation certificate, as there is no annotation line for this.

     

    Is this interpreted correctly?

     

    Answer:

    Footnote 1 in the certificate states that the information in section 6 can also be documented in the form of a list (e.g. offer, list of system parts in accordance with DIN VDE 0833-3) as an attachment to the certificate. For this purpose, the list must contain all information from section 6. Doors and windows which are monitored in the same way can be combined,

    • T1 to T6 each 1 SK (G 103159) and 1 MK (G 100190)
    • F1 to F 25 one each KK (G 105196) and 1 each GMa (G 199156)
    • and so on

    The site plan must be provided with all symbols. Sections 1 to 5 must be filled in directly in the certificate.

    Keywords: deviation, attestation

    In the case of a class C-SG 3 system, the customer does not wish to have a cable installed in his premises and, with the approval of the insurance company, decides to use class B approved wireless motion detectors. This is permissible if it is described as a deviation. In addition, this Class B detector does not have to be listed as an indication in the system approval for Class C the installer only has to ensure that the control panel he uses with class C approval is also approved for class B and that the devices/components used are also included in the class B system approval.

    • In the context of the documentation, the question now arises for the expert installer as to how this deviation must be described.
    • In the example described, is it sufficient to note that wireless motion detectors are not available for Class C and that the cable laying was not desired?

     

    Finally, the deviations must also be countersigned by the operator in the certificate. In addition, there is a requirement that the customer be made aware of the possible consequences.

    • Does this mean that a note must be included stating that a Class C motion detector (radio) is not as safe as a Class B detector?
    • To what extent will the inspector of a VdS installation in future carry out an assessment of whether the deviation was described in a clear and comprehensible manner for the customer or for him/her?
       

    Answer:

    With regard to the use of VdS-approved systems there have been no changes compared to the version VdS 2311 : 2005-09 (03). Therefore, all system components used must still be adapted to work together ( VdS-approved burglar alarm system of class A, B or C)

    This also applies if a class B system component (as a permissible deviation) is used in a class C EMA. In this case, the installer must ensure that the functional interaction is coordinated. The following example is intended to illustrate this:

    The installer plans a class C IAS using the class C intrusion alarm system from the company XY. The class C intrusion alarm control panel "TS 20" is used. At the operator's request, the "Top-Funk" wireless motion detector (company XY) class B is to be used in his exhibition. This detector is part of the class B system of company XY. As the intrusion alarm control panel "TS 20" is also a component of the relevant B-system, the functional interaction (B-detector ? C-centre) is ensured and thus all requirements are fulfilled.

    In the certificate (section D) the deviation could be documented as follows:

    "At the request of the operator, Class B wireless motion detectors were used in the display area."

     

    Justification:

    "The operator does not want any cable laying in this area. Class C wireless motion detectors are currently not available."

    The operator then confirms with his signature that the significance of the deviation as well as the possible consequences were explained to him in detail by the installer and agreed with the insurer. In this example, the installer should consider the following points in his instructions:

    Class B detectors generally have lower performance characteristics than class C detectors. An essential criterion here would be the lack of coverage monitoring of the B detector.

    In addition, the requirements of VdS 2311 Section 7 "IAS with non-exclusive transmission paths" (minimum availability, signal strength, etc.) must be observed. This could possibly result in the wireless detectors having to be replaced by wired detectors again if, for example, the minimum availability of the transmission path of 98% is no longer achieved.

    Whether the installer informs the operator verbally or in writing about the significance and possible consequences of deviations is at his own discretion. The written form is recommended from our point of view - especially for liability reasons. Form and content of the information to the operator are not part of the examination within the scope of the installer approval procedure by VdS. The documentation does not have to be included in the certificate.

    To ensure that an insurer who has not inspected the installation on site knows "what he is getting into", all deviations must be documented and justified in the certificate (Section D or in an annex to the certificate). Care must be taken to ensure that the deviations are clear and can be identified as such. A blanket statement such as "The scope of monitoring was agreed with the operator" would not be clear and would be criticised in the course of an inspection by VdS. Here too, the installer - for reasons of liability law - should have a great interest of his own in ensuring clear conditions.

    Keywords: Alarm wire wallpaper, area monitoring

    In a storage hall for valuable art objects (e.g. paintings), an area security system is installed on a wall length of approx. 110 metres using alarm wire wallpaper up to a height of approx. 3.50 metres.

    This alarm wire wallpaper would cover up to a height of approx. 1.80 metres with a wood fibre board for mechanical protection according to VdS 2311, point 10.3.4.5. A cover above 1.80 metres would increase the costs considerably.

    Answer:

    Provided that accidental damage can be largely excluded and the insurer agrees to this measure (deviation in the certificate), coverage above 1.80 metres can be dispensed wi

    Keywords: lock monitoring, closing sequence control

    A burglar alarm system in accordance with VdS class B, SG 2 is to be installed in a transportation company. The system consists of several security areas.

    In order to maintain the forced circulation between two security areas, a lock monitoring system would have to be implemented on an existing double-leaf fire door with a closing sequence selector. However, the required installation is not feasible for the inactive leaf of the door.

    Is it possible to dispense with lock monitoring on the inactive leaf, since the door coordinator mechanically ensures that the active leaf can only be locked when the inactive leaf is closed?

    Answer:

    The closing sequence control (in connection with the opening monitoring) must ensure that the inactive leaf is not only closed but locked. In this case a corresponding note in the certificate would be sufficient.

    Keywords: UL cabinets, cash dispensers

    Does a VdS-approved installation company have to withdraw an existing VdS certificate if it receives an order from a savings bank to mount the detectors on a UL cabinet instead of a CEN cabinet because of the renewal of a GAA?

    Is the installer allowed to issue a VdS certificate if a new branch office is to be set up and the relationship to be protected is a UL cabinet?

    Does the installer company have to expect problems from the inspector during a VdS inspection by the IAS if the above-mentioned circumstance is found?

    Answer:

    The selection and use of detectors (e.g. structure-borne sound detectors) must be carried out taking into account the respective monitoring tasks, environmental influences and the installation instructions of the system owner/manufacturer with the aim of achieving reliable detection and stable operation with as few false alarms as possible (VdS 2311, Section 10.1.1).

    The installer must therefore satisfy him/herself as to whether the structure-borne sound detectors are suitable for monitoring the UL cabinet. If this is not the case, he must inform the operator of this (e.g. VdS 2311, Section 10.3.10 and footnote 2 in Table E.4.01) and (if available) show alternatives.

    If the operator insists on the installation of the structure-borne sound detectors, the installer must inform the operator that the IAS will then no longer comply with the VdS guidelines and that the certificate will lose its validity, which may possibly affect the insurance contract. In order to protect itself against possible recourse claims, the installer company would be well advised to obtain written confirmation from the operator that he has been informed by the installer about the possible effects and their possible consequences.

    The same applies, of course, to the certification of new plants.

    If the VdS inspectors find during IAS tests that detectors were used which are not suitable for the intended purpose, this will of course be criticised. The installer would then have to rectify this defect at their own expense.

    Keywords: magnetic contact, combination

    A window manufacturer has installed Siegenia fittings in his windows. He cannot install the matching combination sensors from Siegenia in every window because the sensor is too long. Would it be permissible to combine the Siegenia magnet with a combination sensor from G-U? This would be a flat design and also VdS-approved (B: opening and closing; C: closing).

    Answer:

    It is not permitted to combine a magnet and contact from different manufacturers. Magnetic contacts are tested and certified as a unit and may only be used as such.

    Keywords: Inspection intervals, Attestation

    Is it possible - with the consent of the insurer - to certify a VdS system with inspection intervals shorter than those required?

    Answer:

    A reduction of the inspections required in accordance with VdS 2311 can certainly be agreed with the insurer - to a reasonable extent. It should be taken into account that one deviates at the same time from the valid standard (DIN VDE 0833).

    However, such a deviation has no influence on the IAS's attestation, as this is always carried out independently of the conclusion of a maintenance contract and therefore does not have to be documented as a deviation in the attestati

    Keywords: Escape door, security area

    A warehouse is divided into two independent security areas. The connecting door is designated as an escape route in both directions. This door shall be equipped with an escape door control system on both sides.

    As soon as one of the two independent areas is armed, the escape door system is locked, thus ensuring that it is activated. The card reader and the normal door opening button for opening the door are also locked.

    Is an exemption possible?

    Answer:

    Since the escape door leads to a secured area, a special permit cannot be granted. In this constellation no certificate may be issued for the IAS.

    Reason: In addition to the lack of inevitability, there is the fundamental problem that the door can be opened from the outside at any time and without the use of force (no time to overcome, no signs of burglary).

    One possibility is to combine the two warehouses into one security area, which can, however, be armed internally independently of each other (sub-areas). In this case, however, only an internal alarm would be triggered, to which those present in the respective unarmed area could react according

    Keywords: fire alarm system, rolling grilles

    When a VdS-compliant intrusion alarm system is installed in an electronics store, the entrance system in the customer entrance area consists of an outer and an inner automatic door. The fire brigade has made it a condition that when the fire alarm system is triggered, not only the roof domes in the area of the store must open, but also both automatic doors. Due to this requirement, a rolling grille is now installed between the two automatic doors.

    What monitoring scope must the intruder alarm system (class C) have? Certainly the rolling grille must be monitored for opening and locking. But what about the two automatic doors? Does one of them have to be monitored, and if so, which one? Is one lock monitoring sufficient or does the door also have to be monitored for opening?

    Answer:

    The outer automatic door must be monitored for opening and locking. For the rolling grille, one lock monitoring is sufficient. It is acceptable that the opening monitoring triggers an alarm when the fire alarm system is triggered, but this must be communicated with the fire brigade and the connected emergency services control centre.

    Keywords: Permanent functional testing, Telekom

    In the case of a VdS-approved IAS, Telekom will terminate the additional feature "permanent function control". What is the procedure?

    Answer:

    Up to now, Telekom has carried out so-called continuous monitoring (continuous function check) as part of shift 1 monitoring, as standard for system connections and as an additional service on request for multiple device connections. The exchange checked the synchronisation and the frame error rate as part of this continuous monitoring. In the event of an error, this was signalled in the exchange and appropriate measures were initiated. The continuous monitoring was therefore a purely internal measure of Telekom.

    After consultation with a Telekom technician, only the reaction to the error case of the continuous monitoring was stopped.

    The deactivation of the continuous monitoring should not have any effect on VdS-approved transmission systems, as these check the voltage supplied by the grid operator every 20 seconds.

    Keywords: IP Transmission, UMTS

    In accordance with VdS 2311, Section 5.4.2, it is possible to create a Class C transmission with two demand-controlled connections. The transmission device used by us has a transmission path output for ISDN B channel and an output for IP.

    Can the IP connection be implemented via a router to which a UMTS USB stick is connected?

    Answer:

    The proposed version with UMTS USB stick is not permitted. For an alarm transmission via UMTS, the transmission device (ÜE) must be approved according to the VdS guidelines "Transmission paths in alarm transmission systems" (VdS 2471 Annex A 15). The alarm is then transmitted via the antenna of the transmission device. Router and USB stick are not required.

    Keywords: sub-areas, attestation

    In the event of replacement of the entire security technology (IAS and Visual Surveillance Systems) in a savings bank, the room in which the Intruder Alarm System is located and the room in which the respective branch office's background inventory is located should be secured in accordance with VdS "C" SG 5 with the deviation "no monitoring of the safes/valuables rooms".

    To avoid atypical robberies, it is planned to monitor the general business areas with motion detectors. Here, however, there are problems with compliance with the inevitability.

    Is it permissible to certify the IAS in accordance with VdS "C" SG 5 and not to document the surveillance of the general business areas in the certificate?

    The dimensioning of the bridging period of the emergency power supply would be carried out for the entire plant.

    Answer:

    Since the general business areas are also monitored as part of SG 5-IAS, the design must be VdS-compliant and documented accordingly in the certificate. An exclusive attestation of partial areas is not permitted.

    Keywords: Switching device, logic operation

    Is it permissible to dispense with the second switching device for class C Intruder Alarm Systems and to arm/disarm the system only with a switching device with a material or biological identification (IM) feature?

    Answer:

    In accordance with VdS 2311, Annex G, the omission of the switching device with mental IM required for class C risks represents a permissible deviation. Thus, arming/disarming (with the consent of the insurer) can be performed with a biological or material IM.

    However, it should be noted that switching devices with material IM, which only have a mechanical locking mechanism (e.g. profile cylinder, tumbler or cross-bit lock) may only be used in conjunction with an additional, mental IM. This obligation is referred to in Annex 3 of the certificate of approval of these switching devices.

    Arming/disarming with an exclusive switching device with mental IM is still not permitted for Intruder Alarm Systems of classes B and C.

    Keywords: structure-borne sound detector, exterior walls

    A bank's strongroom should be secured according to class C-SG5. According to the insurer, the early attack of the enclosures should be detected and not only the completed "breakthrough".

    The following special features must be taken into account:

    • Building services rooms adjoin three external walls of the strongroom, which can also be entered during externally armed intrusion detection (IAS) (e.g. tradesmen).
    • Above the ceiling of the strongroom there are parts of the 24-hour customer foyer and rooms rented out to third parties.
    • Within the adjoining building services rooms, a heat pump, which is currently not yet in operation, is located at a distance of approx. 1.5 m from one of the three outer walls or floor. During test measurements on an identical heat pump already in operation in the neighbouring new building, we installed structure-borne sound detectors on the concrete floor and wall for measuring purposes. The strong vibrations of the pump led to the triggering. Therefore, only operation with minimum sensitivity and an increase in the number of detectors is conceivable. The real transmission behaviour between pump and structure borne sound detector cannot be evaluated at this time. It is impossible to assess whether "smooth" structure borne sound detector operation with reduced sensitivity can be guaranteed under all operating conditions of the heat pump!
    • Is the use of structure-borne sound detectors permissible under these conditions?

    Answer:

    In accordance with VdS 2311, Section 10.3.10.5, areas which are freely accessible to everyone when the Intruder Alarm System is armed externally must not be monitored with structure-borne sound detectors. Since the main focus here is on avoiding false alarms, it is not possible to deviate from this requirement - even if the insurer tolerates it (impermissible deviation in accordance with VdS 2311, Annex G).

    It is rather unlikely - especially against the background of the above-mentioned measurements - whether a reduction of the sensitivity with a simultaneous increase in the number of detectors will allow for trouble-free operation with sufficient structure-borne sound transmission behaviour.
    Ultimately, only extensive measurements, under all unfavourable environmental conditions, can provide information as to whether the use of structure-borne sound detectors is possible. It is also possible that structural (sound insulation) measures could contribute to an improvement of the environmental conditions.

    Keywords: Escape door, inevitability

    Corresponding solutions with practical examples can be found in the VdS publication "Realisation of the inevitability of doors along escape routes and fire doors".

    Keywords: Bridging time of 30 hours, certificate ability

    In accordance with the guidelines VdS 2311, Section 6.9.5.2, in the event of a failure of the supply network, the continuous unrestricted operation of the intrusion detection system must be ensured for at least 60 h by battery supply.

    If faults in the mains power supply are automatically forwarded to a permanently manned location and access to the monitored object is possible at any time for the maintenance service, the bridging time may be reduced to at least 30 h in accordance with VdS 2311.

    The above-mentioned intrusion alarm system is thus certifiable. The reduction of the bridging time must be documented and justified in the certificate as a deviation.

    Keywords: VdS- certificate, additional power supplies

    There are two columns in the VdS- certificate under section 3. Here, current consumption and battery capacity of additional power supplies can be entered.

    Keywords: transmission device, DSL splitter

    The DSL splitter (located before the NTBA) has no influence on the functionality of the alarm transmission, as it is a purely passive element (crossover). It must only be ensured that it is not possible to simply remove plugs or connect additional devices (see VdS 2311, Section 9.4.3.7).

    Keywords: internal alarm, external alarm/remote alarm

    In accordance with the notes in sections 9.3 and 9.4 of the VdS 2311 guidelines, external alarm and remote alarm are defined as alarms which are triggered exclusively by an externally armed Intruder Alarm System. This must result in direct intervention by the assisting party or parties!

    In accordance with the VdS 2311 guidelines, an internal alarm is the alarm that is triggered by a fully or partially internally armed Intruder Alarm System. Since persons are present in the monitored object when an internally armed IAS is triggered, the risk of false alarms is many times higher than with an externally armed system. Against this background, it is clear that internally armed systems must never trigger external or remote alarms.

    Keywords: door between two security divisions, magnetic contact/ strike plate contact/blocking element

    Here, the problem is basically that the supply lines as well as the distributor box are located in one of the two fuse areas and are therefore accessible in the unarmed state of this area when the other area is armed. Theoretically, in this case it would be possible to outwit the magnetic contact and prevent an alarm from being triggered. In this respect, a separate magnetic contact must be provided for each area in any case.

    The situation is different with strike plate contacts and locking elements, since here it is impossible to prevent the alarm from being triggered by manipulation. A correlation of the striking plate contact and blocking element to both security areas can therefore be accepted in individual cases. However, care should be taken to ensure that the cables are laid under plaster if poss

    Keywords: Infrared motion detectors, mounting

    Infrared motion detectors must not be aimed at outside windows because false alarms can be triggered by direct or indirect light (e.g. sun, car headlights) (see VdS 2311, Section 10.6.4.2f). The fact that such detectors can be seen from outside the security area cannot usually be avoided, but it is not a problem either.

    Keywords: alarm glass, alarm spiders

    As a matter of principle, alarm glazing is to be installed in such a way that the pane with the part giving the alarm (e.g. alarm loop) is located on the attack side (i.e. outside) (see VdS 2311, Section 10.3.5ff). This has the advantage that in the event of an attack on the glazing, an alarm is already triggered and thus an intervention is initiated before the burglar-resistant glazing is overcome.

    Further information on alarm glazing can be found in the VdS 5038 leaflet.

    Keywords: certificate extension, outside area

    In accordance with the guidelines VdS 2311, Section 6.1.3, the buildings or rooms to be monitored must be structurally in perfect condition when the intrusion alarm system is installed. This also includes that the security areas must be completely enclosed. Since there is both an increased risk of burglary and a potential source of false alarms, the certificate extension must be waived. The attestation of the intrusion detection system is only possible if the wall to the external area reaches up to the ceiling.

    Keywords: inventory protection, modifications/supplements/extensions

    VdS-approved intrusion and hold-up alarm systems have at least ten years of protection provided they are regularly maintained. After ten years at the latest, VdS-approved intrusion and hold-up alarm systems must be tested for compliance with the VdS- guidelines then in force. If significant deviations are found, the operator, installer and insurer should agree with each other on how the system is to be upgraded to the current state of the art (see VdS 2311, Section 13.7). In this context, one could certainly come to the conclusion that - although the plant no longer corresponds to the current state of the art in some points - there is no need for action since it still meets the requirements (e.g. of the insurer). In this case, the plant would continue to be protected.

    Changes, additions and extensions to VdS-approved intrusion and hold up alarm systems must comply with the guidelines valid at the time of the change. This does not affect the existing protection.

     

    By the "VdS label". Every approved product must be marked with either the VdS logo or the letters "VdS"; often in conjunction with the VdS approval number (e.g. G103001, M101311 or similar). Products on which the VdS marking is missing are considered not to be approved. The VdS logo is preferably displayed in blue. In exceptional cases - for example, if the product is too small to display the logo on it - the VdS logo may also be displayed on the product packaging.

    No. Mechanical profile cylinders are approved up to class B. Electronic cylinders can also be tested and approved by VdS in class C.

    Only VdS-approved profile cylinders that meet special requirements may be used in switching devices of intrusion alarm systems. They are listed in the directory VdS 2299.

    The directories of profile cylinders can also be found on the Internet. On the Internet, these cylinders can be found among the class B+ or BZ+ locking cylinders. Under the link B(+) and BZ(+) you will find cylinders that are approved for use in switching devices depending on the series; the approval is marked accordingly in the column "PZ for switching devices" if applicable.

    Profile cylinders for switching devices of burglar alarm systems must be provided with individual locking mechanisms (an individual lock that only occurs with this one cylinder) and must not be part of a locking system.

    For the selection and installation of the locking cylinders, please contact a VdS-approved installer for burglar alarm systems according to the VdS 2137 directory (or follow the link Directory of Intruder Alarm System Installers and select the appropriate postcode area).

    No. Profile cylinders that are approved for use in switching devices are listed as printed directory VdS 2299 or as directory on the Internet and can be used in class A, B and C intrusion detection systems.

    Keywords: magnetic contact, closure monitoring

    Magnetic contacts are basically also suitable for closure monitoring. With suitable closure elements, magnetic contacts can be used to monitor opening and closure simultaneously (see VdS 2311, sections 10.2.1.1 and 10.2.3).

    Keywords: windows, site plan

    In accordance with the VdS 2311 guidelines, section 5.1, particularly vulnerable entry points, such as invisible entrances and windows, must be taken into account when determining the surveillance measures, not least because windows and doors are still the main points of attack for perpetrators. To this extent, windows that are not monitored must also be marked on the site plan. Only in this way is the insurer able to assess his risk correctly.

    Keywords: Household contents, monitoring of closure

    In household risks (household contents classes A and B), the monitoring of the closure of windows monitored for opening can be waived with the consent of the insurer (see VdS 2311, Sections 6.3.3 and 6.3.4).

    Mechanical security technology

    It is not possible to equate facade elements that have VdS- approval with those that comply with DIN V EN V 1627. Since the DIN standard does not prescribe product monitoring, the manufacturer is solely responsible for meeting the performance data.
    Only the test requirements can be compared approximately. For doors, gates, windows, roller shutters and hinged shutters with a VdS-approval in accordance with VdS 2534 or a certification in accordance with DIN EN 1627ff, the following applies approximately

    VdS class N corresponds to DIN EN class WK2, class A corresponds to WK3, class B corresponds to WK4. Class WK1 in accordance with DIN is below the VdS requirement level and therefore has no equivalent at VdS (this level is too low to be called burglar resistance). At WK 6, technical requirements are so high that only custom-made products are expected; VdS- approvals are regulated here on a case-by-case basis.

    Further explanations of the problems of the WK classes can be downloaded.

    By the "VdS marking". Every approved product must be marked either with the VdS logo or the letters "VdS"; often in conjunction with the VdS approval number (e.g. G103001, M101311 or similar). Products on which the VdS marking is missing are considered not to be approved. The VdS logo is preferably displayed in blue.

    In exceptional cases - for example, if the product is too small to display the logo on it - the VdS logo may also be displayed on the product packaging.

    The VdS marking is located in one corner of the glazing (corner of the window sash). Under certain circumstances, the VdS marking may be concealed by the window frame, in which case the glass retaining strips must be removed in order to read the marking. Burglar-resistant glazings with VdS- approval are listed as a directory on the Internet (follow the link and scroll to infills).

    The marking is located on the side surface of the cylinder housing. The cylinder must be removed from the lock for inspection. As a rule, the packaging of the cylinder is also marked with the VdS label. Profile cylinders with VdS approval are available as a directory on the Internet.

    The labelling is located on the inside of the outer plate. When the external backplate is mounted, the VdS labelling is not visible.
    Door plates with VdS approval are listed as a directory on the Internet (follow the link and scroll down to Burglar-resistant fittings).

    The profile cylinder is the most commonly used type of locking cylinder in Germany. Other designs are the round and the oval cylinder.

    Profile cylinders meet defined requirements according to VdS 2156 (requirements for profile cylinders) in terms of resistance to break-in and unlocking techniques, locking security, wear resistance, corrosion protection and locking differences. In class B the requirements are higher than in class A. If the cylinders have additional pull protection, a "Z" is added to the class, e.g. "BZ". If the cylinders are also approved for use in switching devices for burglar alarm systems, a plus sign is added, e.g. "B+" or "BZ+".

    The detailed requirements profile for profile cylinders of classes A, B with and without pull-out protection and for profile cylinders suitable for switching devices can be found in the technical information document Classification of profile cylinders under the heading "Infothek-Fachbereiche-Mechanische Sicherungstechnik, Wertbehältnisse".

    No. Mechanical profile cylinders are approved up to class B at most. Electronic cylinders can also be tested and approved by VdS in class C.

    Picking or unlocking is the opening of a locking cylinder without the corresponding key and without the cylinder being significantly damaged. Although traces can be detected, they often require a forensic examination of the cylinder.

    Locking cylinders that have proven their protection against unlocking or picking can be found in the Internet directory.

    Yes, all VdS-approved locking cylinders must - among other tests - prove their resistance to unlocking mechanisms. These tests are not described in the relevant DIN and EN standards. With its own test requirements, VdS goes far beyond the requirements of the standards and demands graduated security against unlocking (picking, impact picking, electro picking and other opening techniques). Profile cylinders are approved by VdS Schadenverhütung in classes A, A+, B, BZ and BZ+.

    • Class A and AZ profile cylinders offer basic protection against unlocking techniques and other opening methods
    • Class B and BZ profile cylinders offer medium protection against unlocking mechanisms and other opening methods
    • Class B+ and BZ+ profile cylinders are suitable for use in switching devices (block locks) of alarm systems (burglar alarm systems) and offer high security against all unlocking techniques and other opening methods. there profile cylinders (locking cylinders) that resist the unlocking mechanisms (for example, pecking, hammering, electro picking)

    Only VdS-approved profile cylinders that meet special requirements may be used in switching devices of intrusion alarm systems. They are listed in the directory VdS 2299.

    The directories of profile cylinders can also be found on the Internet. On the Internet, these cylinders can be found among the class B+ or BZ+ locking cylinders. Under the link B(+) and BZ(+) you will find cylinders that are approved for use in switching devices depending on the series; the approval is marked accordingly in the column "PZ for switching devices" if applicable.

    Profile cylinders for switching devices of burglar alarm systems must be provided with individual locking mechanisms (an individual lock that only occurs with this one cylinder) and must not be part of a locking system.

    For the selection and installation of the locking cylinders, please contact a VdS-approved installer for burglar alarm systems in accordance with the VdS 2137 directory (or follow the link Directory of EMA installers and select the appropriate postcode area).

    No. Profile cylinders that are approved for use in switching devices are listed as printed directory VdS 2299 or as directory on the Internet and can be used in class A, B and C intrusion alarm systems.

    No burglar-resistant effect can be achieved with films that are applied to existing glass panes at a later date. They can only prevent, up to a certain limit, that objects are thrown through the pane and that people behind it are injured by the object or glass fragments.

    Burglar-resistant glazings with VdS-approval are listed as a directory on the Internet (follow the link and scroll to infill).

    It is not possible to put facade elements that have VdS-approval on an equal footing with those that comply with DIN V EN V 1627. Since the DIN standard does not prescribe product monitoring, the manufacturer is solely responsible for meeting the performance data.
    Only the test requirements can be compared approximately. For doors, gates, windows, roller shutters and hinged shutters with a VdS-approval in accordance with VdS 2534 or a certification in accordance with DIN EN 1627ff, the following applies approximately

    VdS class N corresponds to DIN EN class WK2, class A corresponds to WK3, class B corresponds to WK4. Class WK1 in accordance with DIN is below the VdS requirement level and therefore has no equivalent at VdS (this level is too low to be called burglar resistance). At WK 6, technical requirements are so high that only custom-made products are expected; VdS- approvals are regulated here on a case-by-case basis.

    Further explanations of the problems of the WK classes can be downloaded

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