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1. PD6662 is a scheme
This is a document that allows EN50131 to be used in the UK and incorporates 28 other standards.
2. EN 50131 —1:2004,
This document gives requirements on how graded systems are graded, what signals should be sent and when, Environmental specs for equipment etc. It has many subsections which relate to the different types of products used in the security industry.
3. DD CLC TS 50131-7
This document give guidance to surveyors on how risk should be assessed on site and a suitable system is designed to minimise loss.
4. DD243:2004
This gives guidance on how monitored systems can obtain police response. This is achieved by one of 3 methods known as Sequential, Visual and Audible confirmation.
5. ACPO 2008 This policy sets out how systems need to be upgraded if they lose police response or have their URN withdrawn for an Intruder system.
6. Existing ACPO Policy Over many years the police have brought out many ACPO policy's this is a catch all.
PD6662/EN50131 Broken down
1. Structured approach to system design, Every surveyor now has to work to DD CLC TS 50131-7 this makes sure they survey the whole premises so that the system design is based on RISK. Once they have assessed the risk then they can decide on the grade of system to be installed.
2. Graded systems There are 4 grades of system they are:-
Grade 1:- Low Risk
Not acceptable to insurers
Bells only
No Tamper required on any equipment
Grade 2:- Low to Medium Risk
Mainly for Domestics and Low Risk Commercial
Monitored system through to a central station
Tamper required on ALL equipment ,
Grade 3:- Medium to High
Risk High Risk Commercials
Very High Risk Domestic
Tamper required on ALL equipment Anti-Mask detectors required
Grade 4:- High Risk
Very High Properties
Tamper required on ALL equipment
Anti-Mask detectors required
Range Reduction on detectors or by system design
3. Allows both Hardwired and Wireless systems
All wireless devices are classed as Grade 2 and Grade 3. This allows us to use a Hybrid system because it allows both wired and wire free devices to be fitted on the same system.
4. Notification is dependant on grade of system. Each grade of system has a minimum signalling requirement.
5. Access Levels Under the standard an engineer must get permission to access engineering from the authorised user of the system. The use of the # in front of the engineer code is not allowed and must be removed. If the handover sheet is signed please make sure that the box is ticked.
6. Terminology The standard changes terminology we use.
7. Graded equipment
All equipment is now graded to meet specific grades and environmental standards. ie
Power supply Grade 2 & 3
Pir and DT Grade 2 & 3
Vibration sensors Grade 2 & 3
Door Contacts Grade 2 & 3Etc etc
8.Monitored Power Supply'sAll power supply's MUST be monitored for fault condition and Tamper.
9.Mains Failure On Grade 3 systems a Mains Failure must be sent from the main control panel.
10. Battery Standby For Grade 1 & 2 systems the standby time is 12 hours For Grade 3 & 4 systems the standby time is 24 hoursIf the mains fail is reported from the main panel and the Power Supply's are monitored then the standby time, on a Grade 3 & 4 system, can be reduced to 12 hours.
11. Warning DevicesOn Grade 3 systems ALL external Warning Devices must be allocated 1 zone for Fault Condition.
12. Setting and Un-settingThe setting of the system has been superseded by DD243 but, under the standard, the maximum Entry Time allowed is only 45 seconds.
13.Event Recording The standard now dictates how many events a graded system should have:
Grade 1 — Optional
Grade 2 — 250 events with 30 day retention
Grade 3 — 500 events with 30 day retention
Grade 4— 1000 events with 30 day retention
ACPO 2008 Explained
ACPO 2008 dictates how Alarm Company's can obtain police response. It sets out guidelines on what should be done when systems lose police response or their URN (Unique Reference Number)
Currently in the UK there are two levels of response, they are Level 1 and Level 3.
Level1:
This is an instant response to a confirmed Intruder or PA alarm.
Level 3:
Police do not respond to any alarm signal from the premises. If a customer drops to Level 3 response, after 3 false alarms, then they have to comply to DD243 to have it restored.This is done by having the Control Panel & Keypad updated, having some fobs and extra detectors fitted.If, after 6 months, the URN is withdrawn then the system will have to comply to PD6662 — 2004, which requires all the system equipment to be graded. Note — ALL equipment must be replaced.If a customer is already DD243 compliant then they can wait 90 days and be free from false alarms or they will need to have another form of confirmation added eg Audio or Visual.
DD243:2004 Explained
DD243 was brought in to minimise the false alarms caused by people turning the alarm off with a code. It has been in force since 1999.The 2002 version of the standard was updated to include the following:
a. Turning the alarm off with a Fob
b. Stating which devices could and couldn't have overlapping areas of coverage.
c. Sequential confirmation
d. User reset
e. Confirmed alarms
f. Detectors had to be some distance apart
The 2004 version of the standard was updated again to clarify a number of issues:
a. Detectors had to be 2.5 meters apart
b. Detectors with different technologies were approved for use.
The way to obtain a confirmed signal from site is Sequential:
The one that is used the most is Sequential. The criteria for sequential is:-Two separate alarm conditions from independent detectors within 30 to 60 minutesANDTwo detectors of different technologies
OR
Two detectors of the same technology which do not have overlapping areas of coverage.
Setting
The system can set by one of 5 ways, these are:
1. Shunt Lock fitted to the final exit door
2. Portable ACE
3. Push to Set Button on the outside of the premises
4. In conjunction with the ARC (Remote fob or Prox)
5. Door Contact on the Final Door Un-setting
There are a number of ways to un-set the system but only one can be used.The preferred one, by the industry, is the Portable ACE or Fob. This allows the customer to come in, not using a code, to un-set the system. Also the confirmation is only disabled during the length of the entry time. Another method is a shunt lock on the final exit door; this allows the customer to un-set using a key. No confirmation is disabled Another method is using a code to un-set; this is not advised as the customer would not be insured as the system would have all the confirmation turned off when the final door is opened.
DD243 brought a number of changes to way the system operates particularly when it came to un-setting. Under PD6662 there are specific requirements to how systems communicate to a Central Station.
Note:- The recommended signalling for Grade 3 systems is Dual Signalling ie RedCare GSM or DualComm GPRS
Risk Assessments
Under DD CLC TS50131-7 any job, that needs to comply with PD6662, must have a Risk Assessment completed.
This is not a risk assessment based on any dangers within the premises but based on risk of loss that could occur on the premises.
The Risk assessment allows you to gather all the information necessary to carry out a risk assessment on site, plus meet the customers needs.
One of the most important questions that can be asked is:
What is your trade or business?
Or
What is the main issues if someone was to break in to your premises?
The insurance industry assesses the risk by the type of business being assessed.
For example an Off licence would be classed as a Targeted Risk whilst an Lighting retailer would be a Low Risk.
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