LPC Sprinkler Rules – 2009 incorporating BS EN 12845: Amd 2
John Stephens
AUTHORITY RISK INSIGHT, STRATEGY AND CONTROL AUTHORITY Reducing insurable risk through research, advice and best practice
RISK INSIGHT, STRATEGY AND CONTROL AUTHORITY AUTHORITY Reducing insurable risk through research, advice and best practice
RISK INSIGHT, STRATEGY AND CONTROL AUTHORITY AUTHORITY Reducing insurable risk through research, advice and best practice
Removal of reference to sprinkler kits
NEW RISK INSIGHT, STRATEGY AND CONTROL AUTHORITY AUTHORITY Reducing insurable risk through research, advice and best practice
Previously source at lowest level
Sprinkler kits and harmonisation of EN12845 deleted
Was “a statement that the installation will be designed and installed in accordance with this standard or giving details of any deviations from its requirements and the reasons why”. RISK INSIGHT, STRATEGY AND CONTROL AUTHORITY AUTHORITY Reducing insurable risk through research, advice and best practice
RISK INSIGHT, STRATEGY AND CONTROL AUTHORITY AUTHORITY Reducing insurable risk through research, advice and best practice
Two height corrections against Category II (3.5 m changed to 3.4 m)
New
Reference to commissioning test values removed
Change footnote to note, deletion of second footnote RISK INSIGHT, STRATEGY AND CONTROL AUTHORITY AUTHORITY Reducing insurable risk through research, advice and best practice
RISK INSIGHT, STRATEGY AND CONTROL AUTHORITY AUTHORITY Reducing insurable risk through research, advice and best practice
Uncorrected error in Figure 4 – dimensions “A” and “B” to suction pipe intake
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Reference to pressure removed
More specific reference to booster pumps
“Suitable clean” replaces “potable” RISK INSIGHT, STRATEGY AND CONTROL AUTHORITY AUTHORITY Reducing insurable risk through research, advice and best practice
New
Was “Beams and joists”
RISK INSIGHT, STRATEGY AND CONTROL AUTHORITY AUTHORITY Reducing insurable risk through research, advice and best practice
RISK INSIGHT, STRATEGY AND CONTROL AUTHORITY AUTHORITY Reducing insurable risk through research, advice and best practice
Should be 2.0 bar for K 80 in-rack sprinklers
Removal of reference to petroleum jelly
RISK INSIGHT, STRATEGY AND CONTROL AUTHORITY AUTHORITY Reducing insurable risk through research, advice and best practice
Limits flushing connection to DN40 for underside connections
Change from ISO 65 M to ISO 4200 range D
New
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Editorial
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Changed but table still has error
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New Annex
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Annex ZA – Provisions for EU Construction Products Directive Deleted
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LPC Rules Introduction - 1
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LPC Rules Introduction - 2
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Technical change to reprinted TB’s - 1
Previous edition referred to Table TB210.T6 (not T5)
RISK INSIGHT, STRATEGY AND CONTROL AUTHORITY AUTHORITY Reducing insurable risk through research, advice and best practice
Technical change to reprinted TB’s - 2
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LPC Rules Introduction - 3
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BS EN 12845 Clause13.4.4 - conflict
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Example of LPC Rules tabbing BS EN Clause 13.4.4 to TB 229.3.8
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LPC Rules Clause TB 229.3.8
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Typical BS EN12845 tabbed page
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Incorporated in TB201 Extensively revised
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Replaced by TB227 Replaced by TB227
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Replaced by TB210
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Withdrawn
New New
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TB 203 Care and maintenance of automatic sprinkler installations - Revision Background
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TB 203 Care and maintenance - 2
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TB 203 Care and maintenance - 3
RISK INSIGHT, STRATEGY AND CONTROL AUTHORITY AUTHORITY Reducing insurable risk through research, advice and best practice
TB 203 Care and maintenance - 4
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TB 203 Care and maintenance - 5 Review of hazard - identified items
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TB 203 Care and maintenance - 6 TB203.3.4 Yearly routine
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Task TB203.2.3.1 Water storage tank security
1/12
¼ Yr
½ Yr
1 Yr
3 Yrs
*
TB203.3.2.2 Review of hazard - user TB203.3.2.4 Flow switches, Life safety TB203.3.3.3 Water supplies TB203.3.3.4 Electrical supplies TB203.3.3.5 Stop valve operation TB203.3.4.4 Review of hazard - Cont TB203.3.4.5 Sprinklers, mjc, sprayers TB203.3.4.6 Pipework TB203.3.4.7 Replacement parts TB203.3.4.10 Alarm stations TB203.3.2.4 Flow switches, Property protect TB203.3.5.4 Foot valves
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* *
* * * * * * * * * * *
TB 232 Sprinkler installation control valve sets 1
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TB 232 Sprinkler installation control valve sets - 2
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TB 232 Sprinkler installation control valve sets -3
RISK INSIGHT, STRATEGY AND CONTROL AUTHORITY AUTHORITY Reducing insurable risk through research, advice and best practice
TB 232 Sprinkler installation control valve sets - 4
RISK INSIGHT, STRATEGY AND CONTROL AUTHORITY AUTHORITY Reducing insurable risk through research, advice and best practice
TB 232 Sprinkler installation control valve sets - 4
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TB 233 – Water supplies for life safety system -1
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TB 233 – Water supplies for life safety system - 2
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TB 233 – Water supplies for life safety system -3
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TB 233 – Water supplies for life safety system - 4
TB Includes relevant extracts from the ADB
RISK INSIGHT, STRATEGY AND CONTROL AUTHORITY AUTHORITY Reducing insurable risk through research, advice and best practice
John Stephens
[email protected] 01582 623 950
London Road, Moreton In Marsh , Gloucestershire GL56 0RH T: +44(0)1608 12500 F: +44(0)1608 812501 E:
[email protected] www.riscauthority.co.uk
RISK INSIGHT, STRATEGY AND CONTROL AUTHORITY AUTHORITY Reducing insurable risk through research, advice and best practice
LPC Rules for Automatic sprinkler installations 2009, Incorporating BS EN12845 Summary of changes This summary of the changes to the LPC Rules for automatic sprinkler installations 2009, incorporating BS EN 12848:2004 +A2:2009 (LPC Rules) has been prepared to assist users identify and understand the nature of the changes in this new edition of the LPC Rules. It is not intended to be used as an alternative to referencing or using this this edition of the LPC Rules. The FPA makes no guarantee, representation or warranty (express (express or implied) as to the accuracy or completeness of any information and advice contained in this summary. All advice is given on the basis of information, knowledge and technology as at the date of this summary. Use or reliance upon this summary is at a t the users own risk.
BS EN 12848:2004 +A2:2009 Most changes in BS EN 12845 are indicated by start and finish markers
.
National foreword The national foreword has been revised and references are made to the special requirements for life safety. The UK normal practice of reserving sprinkler system water supplies solely for the sprinkler system is referred to and it should be assumed that this reference in the national foreword relates to the Note at 9.6.4, although this is not stated We recommended that LPC rules users read the National foreword.
Contents, Foreword and Introduction Several changes have been made in these sections but are not identified here.
(Page 12) 1. Scope Reference to sprinkler kits deleted
New
(Page 13) 2. Normative References Five changes to document references
FPA, November 2009
Page 1
LPC Rules for Automatic sprinkler installations 2009, Incorporating BS EN12845
3. Terms and conditions (Page 17) 3.39 Jockey pump definition deleted, following clauses renumbered
Term expanded, last two lines added
Definition specifies source at its normal level
Term Jockey pump re-introduced as “pressure maintenance pump”
(Page 19) 3.71 Sprinkler kit deleted.
4. Contract planning and documentation (Page 21) 4.3 Preliminary or estimating stage Reference to deviations and reasons for deviating removed.
(Page 22) 4.4.2 Summary schedule
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LPC Rules for Automatic sprinkler installations 2009, Incorporating BS EN12845
Editorial plus “based on available information” added.
6.2.2 Ordinary Hazard (Page 30)
Table 1 heading amended to “OH3”, references to OH1 and OH2 omitted. Second Note deleted 1.
6.3.2 6.3.2 Storage configuration (Page 33)
Revised wording for ST2 Layout limitation
1
See TB228.T1 for exclusion of ST6.
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Page 3
LPC Rules for Automatic sprinkler installations 2009, Incorporating BS EN12845 7.2.3 Intermediate level inin- rack sprinklers (Page 37) Table 4 – Design criteria for HHS with roof or ceiling protection only
Density/ height values added for ST2/ST4 at 22.5 and 27.5 mm/min.
(Page 38)
Category II height values changed from 3.5 to 3.4m.
2
(Page 44) 8.5 Flow test facilities “Device” changed to “facility”.
2
See also TB229.3.3
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Page 4
LPC Rules for Automatic sprinkler installations 2009, Incorporating BS EN12845 New clause.
(Page 45) 8.5.2 At water supplies
Word change, “facility” was “arrangement”.
New paragraph added.
(Page 45) 8.6.2 Storage tank and pressure tank supplies
Reference to verification of commissioning test values omitted.
(Page 46) 9.2 Town mains
Reversion to 2003 edition.
(Page 47) 9.3.2.2 PrePre- calculated systems
Change table footnote to note. FPA, November 2009
Page 5
LPC Rules for Automatic sprinkler installations 2009, Incorporating BS EN12845
(Page 48) 9.3.4 Reduced capacity tanks
New requirement. (Page 49)
“Effective” inserted.
(Page 49)
“nominal” inserted.
9.4 Inexhaustible sources – Settling and suction chambers (Page 53)
“mm” changed to “mm2”.
9.5 Pressure tanks (Page 54)
“and/or water spray system added” FPA, November 2009
Page 6
LPC Rules for Automatic sprinkler installations 2009, Incorporating BS EN12845
(Page 55) 9.5.4.2 Reversion to 2003 Edition.
(Page 56) 9.6 Choice of water supply
Editorial.
Removal of reference to pressure in first bullet point.
Revised clause specifying booster pumps for one or both supplies as appropriate.
“Potable” changed to “suitable clean”.
FPA, November 2009
Page 7
LPC Rules for Automatic sprinkler installations 2009, Incorporating BS EN12845 (Page 59) 10.5 Valves and accessories Fitting of stop valve has been made conditional. 3
Booster pump by-pass required.
Taper changed from 15º to 20º
Page 60) 10.6.2 Suction pipe Taper changed from 15º to 20º. Prohibition of valves connected to the pump suction deleted.
Paragraph rephrased.
3
LPC Sprinkler Rules users should apply TB210
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Page 8
LPC Rules for Automatic sprinkler installations 2009, Incorporating BS EN12845 (Page 61)
The word “pressure” inserted three times into rated pump flow requirements.
(Page 62)
New clauses.
(Page 65)
Reference to Figure 7 added.
FPA, November 2009
Page 9
LPC Rules for Automatic sprinkler installations 2009, Incorporating BS EN12845 (Page 65)
Deletion of reference to Figure 7.
(Page 66) 10.7.5 Pressure switches
Connection in series deleted, with additional qualification.3
Reversion to 2003 Edition.
(Page 67) 10.8.5 Pump controller Change from category AC-4 to AC-3 contacts.3
Editorial3.
(Page 70)
Change from “EN 50432” to “EN 50342-1 and EN 50342-2”, twice.
FPA, November 2009
Page 10
LPC Rules for Automatic sprinkler installations 2009, Incorporating BS EN12845
11.4 PrePre - action installations (Page 75) New requirement inserted.
(Page 79)
Revised heading and key, removing references to joist.
FPA, November 2009
Page 11
LPC Rules for Automatic sprinkler installations 2009, Incorporating BS EN12845 (Page 80)
Removal of reference to joist.
(Page 81)
Revised figure.
FPA, November 2009
Page 12
LPC Rules for Automatic sprinkler installations 2009, Incorporating BS EN12845 (Page 91)
In first line “equilibrium” deleted; In the first bullet point, “strainer” added; and The word “with” added in the penultimate line.
(Page 92)
Table corrections
FPA, November 2009
Page 13
LPC Rules for Automatic sprinkler installations 2009, Incorporating BS EN12845 (Page 101) Figure 16 – Examples of range pipe arrays
Figure revised.
(Page 102) Figure 17 – Example of application of design points in a LH installation Reversion to 2003 edition4
(Page 103) Figure 18 – Example of application of design points (1 to 7) in an OH installation
Revised key.
4
There is a notation error in the figure.
FPA, November 2009
Page 14
LPC Rules for Automatic sprinkler installations 2009, Incorporating BS EN12845 (Page 109) Figure 23 – Most unfavourable areas of operation in oneone - sided and two sided pipe layouts
Revised figure and key.
FPA, November 2009
Page 15
LPC Rules for Automatic sprinkler installations 2009, Incorporating BS EN12845 (Page 110) Figure 24 – Most favourable areas of operation in one sided and two sided pipe layouts
Revised figure and key
FPA, November 2009
Page 16
LPC Rules for Automatic sprinkler installations 2009, Incorporating BS EN12845 (Page 111) Figure 25 – Most favourable and unfavourable areas of operation in gridded pipe layout.
(Page 112) 13.4.4 Minimum sprinkler discharge pressure
Addition of k115 sprinkler requirement.5
5
The bullet point - 2.0 bar for in-rack sprinklers refers to K 80 sprinklers, see TB229.3.8.
FPA, November 2009
Page 17
LPC Rules for Automatic sprinkler installations 2009, Incorporating BS EN12845 (Page 117)
Removal of reference to petroleum jelly.
15.4 Drain valves (Page 118)
Change from “brass” plug to “suitable” plug.
(Page 119)
Conditional sizing of flushing connection to DN 40.
(Page 122)
Change from ISO 65 L2 to ISO 4200 range D.
(Page 123) 17.1.8 Drainage
New NOTE.
FPA, November 2009
Page 18
LPC Rules for Automatic sprinkler installations 2009, Incorporating BS EN12845
(Page 124)
Editorial.
(Page 129) Changed heading.
(Page 135) Deletion of section “21 Evaluation of conformity”.
(Page 136 to 139)
Changes denoted by emboldened italic entries in tables.6
6
Candle wax factories, match factories, paint application shops removed from OH4 and moved to HHP.
FPA, November 2009
Page 19
LPC Rules for Automatic sprinkler installations 2009, Incorporating BS EN12845 (Page 145 to 150)
Changes to table denoted by italic text, see Mattresses.
(Page 151) D.2 Zoning of installations
Zoning limited by area.
(Page 151) D.3 Requirements for zoned installations
Zoning limited by area.
FPA, November 2009
Page 20
LPC Rules for Automatic sprinkler installations 2009, Incorporating BS EN12845 (Page 159) Annex F Special requirements for life safety systems
Zoning limited by area and reversion to 2003 edition
(Page 161) Annex G Editorial
(Page 162) G.3 Clothes in multiple garment hanging storage
Scope of the annex stated.
FPA, November 2009
Page 21
LPC Rules for Automatic sprinkler installations 2009, Incorporating BS EN12845 (Page 166)
Revision of table 7.
(Page 167) G.7 NonNon- woven synthetic fabric
Editorial.
(Page 178)
New annex. 7
A horizontal dividing line is missing from the table between wood and plastic pallet types in first column.
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Page 22
LPC Rules for Automatic sprinkler installations 2009, Incorporating BS EN12845
Revised
Technical change to TB210.12
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Page 23
LPC Rules for Automatic sprinkler installations 2009, Incorporating BS EN12845
New TB New TB
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Page 24
LPC Rules for Automatic sprinkler installations 2009, Incorporating BS EN12845 TB203 Care and maintenance of automatic sprinkler systems This TB replaces BS EN Clause 20 in its entirety. A maintenance programme is specified as follows:
TB203. 3.2.2 Review of hazard (Quarterly) The Technical Bulletin specifies that the quarterly review of hazard should be undertaken by one of the following procedures: • An inspection by a competent person for example an engineer from a sprinkler servicing contractor; or • By the sprinkler system user submitting a return to the sprinkler contractor detailing any changes A list of items to check during the review of hazard is given in the TB, see below:
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LPC Rules for Automatic sprinkler installations 2009, Incorporating BS EN12845 If any changes are identified that might change the effectiveness of the sprinkler protection remedial action should be taken immediately. The yearly review of hazard is detailed as follows:
The frequencies of maintenance tasks and in some instances changes to frequencies are illustrated below8: Task TB203.2.3.1 Water storage tank security
1/12
½ Yr
1 Yr
3 Yrs
*
TB203.3.2.2 Review of hazard - user TB203.3.2.4 Flow switches, Life safety TB203.3.3.3 Water supplies TB203.3.3.4 Electrical supplies TB203.3.3.5 Stop valve operation TB203.3.4.4 Review of hazard - Cont TB203.3.4.5 Sprinklers, mjc, sprayers TB203.3.4.6 Pipework TB203.3.4.7 Replacement parts TB203.3.4.10 Alarm stations TB203.3.2.4 Flow switches, Property protect TB203.3.5.4 Foot valves
8
¼ Yr
* *
* * * * * * * * * * *
The table shown does not appear in the TB.
FPA, November 2009
Page 26
LPC Rules for Automatic sprinkler installations 2009, Incorporating BS EN12845 TB210 Pumps This Technical Bulletin has been expanded to encompass Power supplies (previously TB220). Only one change of a technical nature has been introduced in TB210.12
The reference to TB210.T5 in the above paragraph has been changed from TB210.T6.
TB232 Sprinkler installation control valve sets This new Technical Bulletin requires that alarm valves are either duplicated or by-passed to maintain a continuity of water supply to the sprinkler installation during servicing of the alarm valve. by-- pass Figure TB232. F1 Wet pipe control valve arrangement with by
FPA, November 2009
Page 27
LPC Rules for Automatic sprinkler installations 2009, Incorporating BS EN12845 Figure TB232. F2 Duplicate installation control valve arrangement
This arrangement may be used for wet or dry pipe installations. Monitoring of stop valves should be considered but is not a requirement for property protection purposes.
FPA, November 2009
Page 28
LPC Rules for Automatic sprinkler installations 2009, Incorporating BS EN12845 TB233 Water supplies for life safety systems. This new Technical Bulletin provides guidance on compliance with the Approved Document B (Fire Safety) Volume 2- Buildings other than dwellinghouses.
An extract from the ADB detailing the relevant clauses for water supplies is given in Appendix 1 of the Technical Bulletin.
FPA, November 2009
Page 29
