LPC Sprinkler Rules - John Stephens

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LPC Sprinkler Rules – 2009

incorporating BS EN 12845: Amd 2

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RISK INSIGHT, STRATEGY AND CONTROL AUTHORITY

Reducing insurable risk through research, advice and best practice

RISK INSIGHT, STRATEGY AND CONTROL AUTHORITY

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RISK INSIGHT, STRATEGY AND CONTROL AUTHORITY

Removal of reference to sprinkler kits

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Sprinkler kits and harmonisation of EN12845 deleted

Previously source at lowest level

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RISK INSIGHT, STRATEGY AND CONTROL AUTHORITY

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Two height corrections against Category II (3.5 m changed to 3.4 m)

New

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RISK INSIGHT, STRATEGY AND CONTROL AUTHORITY

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Uncorrected error in Figure 4 – dimensions “A” and “B” to

suction pipe intake

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RISK INSIGHT, STRATEGY AND CONTROL AUTHORITY

Reference to pressure removed

More specific reference to booster pumps

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New

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RISK INSIGHT, STRATEGY AND CONTROL AUTHORITY

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Should be 2.0 bar for K 80 in-rack sprinklers

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RISK INSIGHT, STRATEGY AND CONTROL AUTHORITY

Limits flushing connection to DN40 for underside connections

Change from ISO 65 M to ISO 4200 range D

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RISK INSIGHT, STRATEGY AND CONTROL AUTHORITY

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RISK INSIGHT, STRATEGY AND CONTROL AUTHORITY

Annex ZA – Provisions for EU Construction Products Directive

Deleted

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RISK INSIGHT, STRATEGY AND CONTROL AUTHORITY

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Technical change to reprinted TB’s - 1

Previous edition referred to Table TB210.T6

(not T5)

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RISK INSIGHT, STRATEGY AND CONTROL AUTHORITY

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RISK INSIGHT, STRATEGY AND CONTROL AUTHORITY

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Example of LPC Rules tabbing

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RISK INSIGHT, STRATEGY AND CONTROL AUTHORITY

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RISK INSIGHT, STRATEGY AND CONTROL AUTHORITY

Extensively revised

Incorporated in TB201

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Replaced by TB227

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RISK INSIGHT, STRATEGY AND CONTROL AUTHORITY

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Withdrawn

New

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RISK INSIGHT, STRATEGY AND CONTROL AUTHORITY

TB 203 Care and maintenance of automatic

sprinkler installations - Revision

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RISK INSIGHT, STRATEGY AND CONTROL AUTHORITY

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RISK INSIGHT, STRATEGY AND CONTROL AUTHORITY

TB 203 Care and maintenance - 5

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TB 203 Care and maintenance - 6

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RISK INSIGHT, STRATEGY AND CONTROL AUTHORITY

Task 1/12 ¼ Yr ½ Yr 1 Yr 3 Yrs

TB203.2.3.1 Water storage tank security

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TB203.3.2.2 Review of hazard - user

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TB203.3.2.4 Flow switches, Life safety

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TB203.3.3.3 Water supplies

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TB203.3.3.4 Electrical supplies

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TB203.3.3.5 Stop valve operation

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TB203.3.4.4 Review of hazard - Cont

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TB203.3.4.5 Sprinklers, mjc, sprayers

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TB203.3.4.6 Pipework

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TB203.3.4.7 Replacement parts

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TB203.3.4.10 Alarm stations

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TB203.3.2.4 Flow switches, Property protect

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TB 232 Sprinkler installation control valve sets

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RISK INSIGHT, STRATEGY AND CONTROL AUTHORITY

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TB 233 – Water supplies for life safety system - 4

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RISK INSIGHT, STRATEGY AND CONTROL AUTHORITY

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

John Stephens

[email protected]

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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 This summary of the changes to the LPC Rules for automatic sprinkler This summary of the changes to the LPC Rules for automatic sprinkler This summary of the changes to the LPC Rules for automatic sprinkler installations 2009, incorporating BS EN 12848:2004 +A2:2009

installations 2009, incorporating BS EN 12848:2004 +A2:2009 installations 2009, incorporating BS EN 12848:2004 +A2:2009

installations 2009, incorporating BS EN 12848:2004 +A2:2009 (LPC Rules) (LPC Rules) (LPC Rules) (LPC Rules) has been prepared to assist

has been prepared to assist has been prepared to assist

has been prepared to assist users identifyusers identifyusers identifyusers identify and understand the nature of the and understand the nature of the and understand the nature of the and understand the nature of the changes in this new edition of the LPC Rules. It

changes in this new edition of the LPC Rules. It changes in this new edition of the LPC Rules. It

changes in this new edition of the LPC Rules. It is not intended to be used is not intended to be used is not intended to be used is not intended to be used as an alternative to referencing

as an alternative to referencing as an alternative to referencing

as an alternative to referencing or usingor usingor usingor using ththththis editionis editionis editionis edition of of of of the LPC Rules.the LPC Rules.the LPC Rules.the LPC Rules.

The FPA makes no guarantee, representation or warranty (ex The FPA makes no guarantee, representation or warranty (ex The FPA makes no guarantee, representation or warranty (ex

The FPA makes no guarantee, representation or warranty (express or press or press or press or implied)

implied) implied)

implied) as to the accuracy or completeness of any information and advice as to the accuracy or completeness of any information and advice as to the accuracy or completeness of any information and advice as to the accuracy or completeness of any information and advice contained in this summary. All advice is given on the basis of information, contained in this summary. All advice is given on the basis of information, contained in this summary. All advice is given on the basis of information, contained in this summary. All advice is given on the basis of information, knowledge and technology as at the date of this summary.

knowledge and technology as at the date of this summary. knowledge and technology as at the date of this summary. knowledge and technology as at the date of this summary.

Use or reliance upon this summary is a Use or reliance upon this summary is a Use or reliance upon this summary is a

Use or reliance upon this summary is at the users own risk.t the users own risk.t the users own risk.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

National foreword National foreword 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, Contents, Contents,

Contents, ForewordForewordForeword and IntroductionForeword and Introductionand Introductionand Introduction

Several changes have been made in these sections but are not identified here. (Page 12)

1. 1. 1.

1. Scope Scope Scope Scope

Reference to sprinkler kits deleted New

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LPC Rules for Automatic sprinkler installations 2009,

Incorporating BS EN12845

FPA, November 2009 Page 2

3. 3. 3.

3. Terms and conditionsTerms and conditionsTerms and conditionsTerms 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.

4. 4.

4. Contract planning and documentationContract planning and documentationContract planning and documentationContract 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 4.4.2 Summary schedule 4.4.2 Summary schedule 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

6.2.2 Ordinary Hazard 6.2.2 Ordinary Hazard 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 6.3 6.3

6.3.2 Storage configuration .2 Storage configuration .2 Storage configuration .2 Storage configuration (Page 33)

Revised wording for ST2 Layout limitation

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LPC Rules for Automatic sprinkler installations 2009,

Incorporating BS EN12845

FPA, November 2009 Page 4 7.2.3 Intermediate level in

7.2.3 Intermediate level in 7.2.3 Intermediate level in

7.2.3 Intermediate level in----rack sprinklersrack sprinklersrack sprinklers rack sprinklers (Page 37)

Table 4 Table 4 Table 4

Table 4 ––– Design criteria for HHS with roof or ceiling protection only–Design criteria for HHS with roof or ceiling protection onlyDesign criteria for HHS with roof or ceiling protection only 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 facilitiesFlow test facilitiesFlow test facilities Flow test facilities

“Device” changed to “facility”.

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LPC Rules for Automatic sprinkler installations 2009,

Incorporating BS EN12845

New clause. (Page 45) 8.5.2 At water supplies 8.5.2 At water supplies 8.5.2 At water supplies 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 8.6.2 Storage tank and pressure tank supplies 8.6.2 Storage tank and pressure tank supplies 8.6.2 Storage tank and pressure tank supplies

Reference to verification of commissioning test values omitted. (Page 46) 9.2 Town mains 9.2 Town mains 9.2 Town mains 9.2 Town mains Reversion to 2003 edition. (Page 47) 9.3.2.2 9.3.2.2 9.3.2.2

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LPC Rules for Automatic sprinkler installations 2009,

Incorporating BS EN12845

FPA, November 2009 Page 6 (Page 48)

9.3.4 Reduced capacity tanks 9.3.4 Reduced capacity tanks 9.3.4 Reduced capacity tanks 9.3.4 Reduced capacity tanks

New requirement. (Page 49) “Effective” inserted. (Page 49) “nominal” inserted. 9.4 Inexhaustible sources 9.4 Inexhaustible sources 9.4 Inexhaustible sources

9.4 Inexhaustible sources –––– Settling and suction chambersSettling and suction chambersSettling and suction chambersSettling and suction chambers (Page 53)

“mm” changed to “mm2_”.

9.5 Pressure 9.5 Pressure 9.5 Pressure

9.5 Pressure tankstankstankstanks (Page 54)

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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 9.6 Choice of water 9.6 Choice of water

9.6 Choice of water supplysupplysupplysupply

Editorial.

Removal of reference to pressure in first bullet point.

Revised clause specifying booster pumps for one or both supplies as appropriate.

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LPC Rules for Automatic sprinkler installations 2009,

Incorporating BS EN12845

10.5 Valves 10.5 Valves 10.5 Valves

10.5 Valves and accessoriesand accessoriesand accessoriesand 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 10.6.2 Suction 10.6.2 Suction 10.6.2 Suction pipepipepipepipe

Taper changed from 15º to 20º. Prohibition of valves connected to the pump suction deleted.

Paragraph rephrased.

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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)

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LPC Rules for Automatic sprinkler installations 2009,

Incorporating BS EN12845

Deletion of reference to Figure 7. (Page 66) 10.7.5 Pressure switches 10.7.5 Pressure switches 10.7.5 Pressure switches 10.7.5 Pressure switches Connection in series deleted, with additional qualification.3

Reversion to 2003 Edition. (Page 67) 10.8.5 Pump controller 10.8.5 Pump controller 10.8.5 Pump controller 10.8.5 Pump controller Change from category AC-4 to AC-3 contacts.3

Editorial3_.

(Page 70)

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LPC Rules for Automatic sprinkler installations 2009,

Incorporating BS EN12845

11.4 Pre 11.4 Pre 11.4 Pre

11.4 Pre----action action action action installationsinstallationsinstallationsinstallations (Page 75)

New requirement inserted. (Page 79)

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LPC Rules for Automatic sprinkler installations 2009,

Incorporating BS EN12845

Removal of reference to joist. (Page 81)

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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)

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LPC Rules for Automatic sprinkler installations 2009,

Incorporating BS EN12845

Figure 16 Figure 16 Figure 16

Figure 16 –––– Examples of range pipe arraysExamples of range pipe arraysExamples of range pipe arraysExamples of range pipe arrays Figure revised. (Page 102) Figure 17 Figure 17 Figure 17

Figure 17 –––– Example of application of Example of application of Example of application of Example of application of design points in a LH installationdesign points in a LH installationdesign points in a LH installationdesign points in a LH installation Reversion to 2003 edition4

(Page 103) Figure 18 Figure 18 Figure 18

Figure 18 –––– Example of application of design points (1 to 7) in an OH Example of application of design points (1 to 7) in an OH Example of application of design points (1 to 7) in an OH Example of application of design points (1 to 7) in an OH installation installation installation installation Revised key.

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LPC Rules for Automatic sprinkler installations 2009,

Incorporating BS EN12845

Figure 23 –––– Most unfavourable areas of operation in oneMost unfavourable areas of operation in oneMost unfavourable areas of operation in oneMost unfavourable areas of operation in one----sided and sided and sided and sided and two two two two sided pipe layouts

sided pipe layouts sided pipe layouts sided pipe layouts

Revised figure and key.

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LPC Rules for Automatic sprinkler installations 2009,

Incorporating BS EN12845

Figure 24 Figure 24 Figure 24

Figure 24 –––– Most favourable areas of operation in one sided and two sided Most favourable areas of operation in one sided and two sided Most favourable areas of operation in one sided and two sided Most favourable areas of operation in one sided and two sided pipe layouts

pipe layouts pipe layouts pipe layouts

Revised figure and key

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LPC Rules for Automatic sprinkler installations 2009,

Incorporating BS EN12845

Figure 25 –––– Most favourable and unfavourable areas of operation Most favourable and unfavourable areas of operation Most favourable and unfavourable areas of operation Most favourable and unfavourable areas of operation in gridded in gridded in gridded in gridded pipe layout.

pipe layout. pipe layout. pipe layout.

(Page 112)

13.4.4 Minimum sprinkler discharge pressure 13.4.4 Minimum sprinkler discharge pressure 13.4.4 Minimum sprinkler discharge pressure 13.4.4 Minimum sprinkler discharge pressure

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LPC Rules for Automatic sprinkler installations 2009,

Incorporating BS EN12845

Removal of reference to petroleum jelly. 15.4 Drain valves

15.4 Drain valves 15.4 Drain valves 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 17.1.8 Drainage 17.1.8 Drainage 17.1.8 Drainage New NOTE.

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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

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LPC Rules for Automatic sprinkler installations 2009,

Incorporating BS EN12845

FPA, November 2009 Page 20 (Page 145 to 150)

Changes to table denoted by italic text, see Mattresses.

(Page 151) D.2 Zoning of D.2 Zoning of D.2 Zoning of

D.2 Zoning of installationsinstallationsinstallationsinstallations

Zoning limited by area.

(Page 151)

D.3 Requirements for zoned installations D.3 Requirements for zoned installations D.3 Requirements for zoned installations D.3 Requirements for zoned installations

Zoning limited by area.

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LPC Rules for Automatic sprinkler installations 2009,

Incorporating BS EN12845

(Page 159)

Annex F Special requirements for life safety systems Annex F Special requirements for life safety systems Annex F Special requirements for life safety systems Annex F Special requirements for life safety systems

Zoning limited by area and reversion to 2003 edition

(Page 161) Annex Annex Annex Annex G G G G Editorial (Page 162)

G.3 Clothes in multiple garment hanging storage G.3 Clothes in multiple garment hanging storage G.3 Clothes in multiple garment hanging storage G.3 Clothes in multiple garment hanging storage

Scope of the annex stated.

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LPC Rules for Automatic sprinkler installations 2009,

Incorporating BS EN12845

FPA, November 2009 Page 22 (Page 166) Revision of table 7_. (Page 167) G.7 Non G.7 Non G.7 Non

G.7 Non----woven synthetic fabricwoven synthetic fabricwoven synthetic fabric woven synthetic fabric

Editorial.

(Page 178)

New annex.

7_{A horizontal dividing line is missing from the table between wood and plastic}

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LPC Rules for Automatic sprinkler installations 2009,

Incorporating BS EN12845

Revised

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LPC Rules for Automatic sprinkler installations 2009,

Incorporating BS EN12845

FPA, November 2009 Page 24

New TB New TB

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LPC Rules for Automatic sprinkler installations 2009,

Incorporating BS EN12845

TB203 Care and maintenance of automatic sprinkler systems TB203 Care and maintenance of automatic sprinkler systems TB203 Care and maintenance of automatic sprinkler systems 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 TB203. 3.2.2 Review of hazard TB203. 3.2.2 Review of hazard

TB203. 3.2.2 Review of hazard (Quarterly)(Quarterly)(Quarterly)(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

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LPC Rules for Automatic sprinkler installations 2009,

Incorporating BS EN12845

FPA, November 2009 Page 26 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_:

8_{The table shown does not appear in the TB.} Task

Task Task

Task 1/12 1/12 1/12 1/12 ¼ Yr¼ Yr¼ Yr¼ Yr ½ Yr ½ Yr½ Yr½ Yr 1 Yr1 Yr1 Yr1 Yr 3 Yrs3 Yrs 3 Yrs3 Yrs TB203.2.3.1 Water storage tank security TB203.2.3.1 Water storage tank security TB203.2.3.1 Water storage tank security TB203.2.3.1 Water storage tank security

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TB203.3.2.2 Review of hazard TB203.3.2.2 Review of hazard TB203.3.2.2 Review of hazard ---- userTB203.3.2.2 Review of hazard useruseruser

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TB203.3.2.4 Flow switches, Life safetyTB203.3.2.4 Flow switches, Life safetyTB203.3.2.4 Flow switches, Life safety TB203.3.2.4 Flow switches, Life safety

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TB203.3.3.3 Water suppliesTB203.3.3.3 Water suppliesTB203.3.3.3 Water supplies TB203.3.3.3 Water supplies

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TB203.3.3.4 Electrical suppliesTB203.3.3.4 Electrical suppliesTB203.3.3.4 Electrical supplies TB203.3.3.4 Electrical supplies

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TB203.3.3.5 Stop valve operationTB203.3.3.5 Stop valve operationTB203.3.3.5 Stop valve operation TB203.3.3.5 Stop valve operation

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TB203.3.4.4 Review of hazard TB203.3.4.4 Review of hazard TB203.3.4.4 Review of hazard ---- ContTB203.3.4.4 Review of hazard ContContCont

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TB203.3.4.5 Sprinklers, mjc, sprayersTB203.3.4.5 Sprinklers, mjc, sprayersTB203.3.4.5 Sprinklers, mjc, sprayers TB203.3.4.5 Sprinklers, mjc, sprayers

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TB203.3.4.6 PipeworkTB203.3.4.6 PipeworkTB203.3.4.6 Pipework TB203.3.4.6 Pipework

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TB203.3.4.7 Replacement partsTB203.3.4.7 Replacement partsTB203.3.4.7 Replacement parts TB203.3.4.7 Replacement parts

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TB203.3.4.10 Alarm stationsTB203.3.4.10 Alarm stationsTB203.3.4.10 Alarm stations TB203.3.4.10 Alarm stations

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TB203.3.2.4 Flow switches, Property protectTB203.3.2.4 Flow switches, Property protectTB203.3.2.4 Flow switches, Property protect TB203.3.2.4 Flow switches, Property protect

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TB203.3.5.4 Foot valvesTB203.3.5.4 Foot valvesTB203.3.5.4 Foot valves TB203.3.5.4 Foot valves

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LPC Rules for Automatic sprinkler installations 2009,

Incorporating BS EN12845

TB210 Pumps TB210 Pumps TB210 Pumps 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 TB232 Sprinkler installation control valve sets TB232 Sprinkler installation control valve sets 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.

Figure TB232. F1 Wet pipe control valve arrangement with by Figure TB232. F1 Wet pipe control valve arrangement with by Figure TB232. F1 Wet pipe control valve arrangement with by

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LPC Rules for Automatic sprinkler installations 2009,

Incorporating BS EN12845

FPA, November 2009 Page 28 Figure TB232. F2 Duplicate installation control valve arrangement

Figure TB232. F2 Duplicate installation control valve arrangement Figure TB232. F2 Duplicate installation control valve arrangement 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.

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LPC Rules for Automatic sprinkler installations 2009,

Incorporating BS EN12845

TB233 Water supplies for life safety systems. TB233 Water supplies for life safety systems. TB233 Water supplies for life safety systems. 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.