Guideline for TSP FM200 Systems Rev6.pdf

8/19/2019 Guideline for TSP FM200 Systems Rev6.pdf

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TT oo tt aa ll FF ll oo oo dd ii nn gg SS yy ss tt ee mm ss

-- GGuuiiddeelliinnee --

HHFFCC--222277 eeaa CCFF33--CCHHFF--CCFF33

Heptafluoropropane

Note: This guideline has been prepared with the best information available at the time of publication. Changes in

standards mentioned or technical changes may apply without further notice.


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Guideline For TSP FM200®

Extinguishing Systems

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1) General Information

FM200® has been developed as an alternative to Halon 1301, production of which ceased at the end of 1993,

under the agreed adjustments made to the Montreal Protocol in November 1992.

FM200® contains no Bromine or Chlorine and has therefore an Ozone depleting potential of zero.

FM200® systems utilize one or more storage containers arranged to provide the protected area with a pre-

determined quantity of gas.

FM200® storage containers are designed to hold FM200®

in liquid form and Nitrogen, which is used to super-

pressurize the container to 24.8 bar (360 psi) at 20°C.

Handling and Installation of FM200® equipment should only be carried out by persons experienced in dealing

with this type of equipment.

2) Properties of FM200®

FM200® is stored as a liquefied compressed gas and is discharged into the protected area as a vapour.

FM200® (HFC-227ea) is a clean, gaseous agent containing no particles or oily residues. It is produced under

ISO 9002 guidelines to strict manufacturing specifications ensuring product purity. FM-200® leaves no residue

or oily deposits on delicate electronic equipment, and can be removed from the protected space by ventilation.

The present understanding of the functioning of FM200® is that 80% of its fire fighting effectiveness is

achieved through heat absorption and 20% through direct chemical means (action of the fluorine radical on the

chain reaction of a flame).

FM200® decomposes at temperatures in excess of 500°C and it is therefore important to avoid applications

involving hazards where continuously hot surfaces are involved. Upon exposure to the flame FM200® will

decompose to form halogen acids. Their presence will be readily detected by a sharp, pungent odour beforemaximum hazardous exposure levels are reached. It has been concluded from fire toxicity studies thatdecomposition products from the fire itself specially carbon monoxide, smoke, oxygen depletion and heat maycreate a greater hazard.

Chemical Formula: CF3CHFCF3

Boiling Point @ 1 atm: -16.4 °C

Vapour Pressure @ 20°C: 3.91 bar (56.7 psi)

Vapour Density @ 20°C: 31.18 kg/m³ (1.95 lb/ft³)

Liquid Density @ 20°C: 1407 kg/m³

3) Approvals

The FM200® system and components used in the TSP extinguishing system have been tested and approvedby LPCB (European System) and UL/FM (non-European System).

Only approved components may be used in the FM200® system.


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4) Safety Margins

Use Conc. NOAEL* Safety Margin

Novec 1230™ 4% - 6% 10% 67% - 150%

Halon 1301 5% 5% Nil

FM-200 ®

6,4% - 8,7% 9% 3% - 29%

* No Observable Adverse Effect LevelLow Observable Adverse Effect Level (LOAEL) for FM-200

® is >10.5% !

5) Environmental Comparison

Ozone Depletion Potential

(ODP)

Global Warming Potential

(GWP)

Atmospheric Lifetime

(years)

Novec 1230™ 0 1 0,014

Halon 1301 12 6900 65

HFC-227ea 0 3500 33

* IPCC 2001

6) General System Design

Total Flooding is the only approved application method for FM200 systems!

Manifolded System Modularized System

All cylinders the same sizeand the same filling!


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7) Hazard Analysis

Note: A thorough hazard analysis is important for a qualified quotation.

The following questions should be answered:

PROJECT: (enter name if applicable; country must be indicated)

Name Country

SUPPRESSION SYSTEM:

CO2 HP FM-200 Novec™ i2/i3 Inergen Other (specify) __________________________Type

NFPA/FM NFPA/UL ISO VdS Other (specify) __________________________Design Standard / Approval

DOT TPED None Other (specify) __________________________ Agent Container Approval

Electric Manual PneumaticSystem Release

Inside Hazard Outside Hazard: ________ [m] horizontal distance ________ [m] vertical distance Agent Container Location

HAZARD:

No. Name Hazardous Material

[°C] [°C] [m]Minimum Temperature Maximum Temperature Altitude above/below sea level

Hazard Dimensions:

[m] [m] [m²]Length Width Floor Area (alternative)

[m] [m] [m]Height of Ceiling Void (if applicable) Height of Room (excl. ceiling/floor void) Height of Floor Void (if applicable)

Impermeable Building Structures: [m³]

Only permanent impermeable building structures within the area may be deducted from the gross volume

Note In the following cases please supply additional sketches/drawings with dimensions and any relevant details: irregular room shapes ceiling obstructions such as beams greater than 300 mm (12 in.) height other unusual conditions.

Further Information / Comments:


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8) System Design

The system design requires the following steps:

1. Check on design standard / hazardous material involved to get the design concentration2. Determination of net* hazard volume.

*Only permanent impermeable building structures within the hazard may be deducted from the overall hazard volume.3. Determination of the extinguishing agent quantity4. Check the max. reached concentration5. Determination of number and size of agent containers.6. Determination of nozzle size and quantity.7. Determination of pipe sizes and pipe run.

Note: Pipes and fittings are generally not supplied by TSP.

8.1) Design Standards

The following information/examples have been based generally on ISO 14520 - Gaseous Fire ExtinguishingSystems (BS ISO 14520 in the UK). NFPA 2001 values are mentioned additionally.

Minimum design concentrations for FM200® acc. to ISO 14520:

Class A solid surface / electrical fires 7,9%

Class A higher hazard fires 8,5%

Class B liquid (Heptane) min. 9%

Class C gas fires 7,9%

Minimum design concentrations for FM200® acc. to NFPA2001:

UL FM

Class A solid fires 6,4% 7,17%

Class B liquid/gas fires min. 9% min. 9%

Class C electrical fires 6,4% 7,17%

Table 1: FM200 weight requirements per volume of protected space:

Important!

These design concentrationsare not applicable (and arenot to be used) for Marineapplications.


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Table 2: Altitude correction factor:

At elevations above sea-level, FM200®

has a greater specific volume because of the reduced atmospheric

pressure. A system designed for sea-level conditions will therefore develop an actual higher concentration atlevels above sea-level and an actual lower concentration at levels below sea-level.

8.2) Determination of FM200

Quantity

Where V = Hazard volume [m³]CF = Flooding factor [kg/m³] (see Table 1)C Alt = Altitude correction factor (see Table 2)

Example:

Type of hazard: Computer room (class A surface fire) – Design ISO 14520

Gros volume: 8,0 m x 4,25 m x 2,5 m = 85 m³Minimum hazard temperature: 20°CMaximum hazard temperature 30°C Altitude: 1500 m

Round up to the next full kg Required agent quantity = 45 kg FM200

.

][kg C C V W Alt F ××=

][13.4483.06254.085 kg W =××=


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8.3) Check the max. reached concentration

To check the concentration C reached in a hazard the following formula can be used:

Where W = Agent quantity supplied from the system [kg]V = Hazard volume [m³]S = Specific vapor volume [m³/kg] = 0.1269+0.0005131*T at sea level ! T = Temperature [°C]

This check needs to be performed:

• to make sure that the NOAL/ LOAL is not exceeded at the max. expected temperature in the hazard

• whenever there is a change in the volume to verify that the change will not effect the systemperformance / human safety

A system concentration will always need to be:

• high enough to put out the fire (min. design concentration to be reached !)

• low enough not to risk human safety (under NOAL 9% for occupied areas; under LOAL 10.5% forunoccupied areas.

Example:

Type of hazard: Computer room (class A surface fire) – Design ISO14520

Gros volume: 8,0 m x 4,25 m x 2,5 m = 85 m³Minimum hazard temperature: 20°CMaximum hazard temperature 30°C Altitude: 1500 m

A quantity of 45 kg FM200®

has been calculated at an altitude of 1500 m.

At sea level this would result in 45 kg / 0,83 = 54.22 kg FM200

What concentration is reached at the max. hazard temperature of 30°C ?

S = 0.1269 + 0.0005131 * 30 = 0.1423

Concentration is less than NOAEL (9%) – okay for occupied space !

)(

100

S W V

S W C

×+

××=

%32,872,92

55.771

)1423.022.54(85

1001423.022.54C ==

×+

××=


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8.4) Determination of number and size of containers

Each container assembly consists of

FM200®

container

FM200®

valve with pressure gauge

Siphon tube

Containers are painted red as standard.Containers are fitted with a label which provides handling, maintenance and recharge instructions. All containers are designed for vertical mounting only.

Each assembly may be provided with a range of FM200®

fills to suit the design requirements.

After filling, the containers are super-pressurised with dry nitrogen to 24.8 bar +5% (at a temperature of 20°C).

Table 3a: Table 3b:

FM 200 Containers FM 200 1230 Containers

Containers manufactured to meet 84/527/EEC (TPED) Containers manufactured to DOT

ContainerSize

DiameterHt. toValveOutlet

TareWeight*

Min.FM 200Filling

Max.FM 200Filling

Max.Gross

Weight*

ContainerSize

DiameterHt. toValveOutlet

TareWeight*

Min.FM 200Filling

Max.FM 200Filling

Max.Gross

Weight*

(litre) (mm) (mm) (kg) (kg) (kg) (kg) (litre) (mm) (mm) (kg) (kg) (kg) (kg)

--- --- --- --- --- --- --- 4.5 178 241 5 2.5 4.5 10

8 254 300 15 4.0 9.0 26 8 254 304 15 4.5 8.0 26

16 254 499 19 8.0 20.0 41 16 254 502 19 9.0 17.5 41

32 254 831 26 16.0 38.0 68 32 254 833 26 17.0 33.5 68

52 406 596 44 26.0 59.0 111 52 406 596 49 27.0 53.0 111

106 406 1020 72 53.0 119.5 205 106 406 1020 72 53.5 106.5 205

147 406 1354 90 73.5 165.5 274 147 406 1350 90 74.0 147.5 274

180 406 1633 106 90.0 204.0 332 180 406 1630 106 91.5 182.0 332

--- --- --- --- --- --- --- 343 610 1466 207 172 343.5 595

Note: 1) For extinguishing systems to be installed in Europe (EU) TPED-compliant containers have to be used.2) Approximate 80% of the max. filling can be used for practical reasons (pipe hydraulic).

Example: using TPED Cylinders

Required agent quantity = 45 kg FM200®

.

Container size Min. Filling Max. Filling 80% Max. Filling*

52 l 26,0 kg 59,0 kg 47,2 kg o.k

106 l 53,0 kg 119,5 kg 95,6 kg not o.k. / min. filling not reached

* experience value

1 x 52 liter container required – filled with 45 kg FM200 .


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8.5) Determination of number and size of nozzles

FM200

Discharge Nozzles: Nozzle Coverage:

180° Pattern 360° Pattern

Number of ports 7 8

Available size 15/20/25/32/40/50 mm

Max. area of coverage see figure

Max. coverage height 4.87 m

Example:

Hazard = 8,0 m x 4,25 m x 2,5 m

42 kg FM200®

Note:

Discharge time for a FM200®

system is max. 10 seconds (according to ISO14520/ NFPA2001)

A) Number of nozzles: Check of nozzle coverage

check nozzle coverage vs. hazard area check max. coverage height (4.87 m) vs.

height of hazard

1 nozzle 180° or 1 nozzle 360° possible.

B) Nozzle size:

check agent flow [kg/s] per nozzle anddetermine nozzle size from table 4 (see §8.6)

Agent flow = 4.2 kg/sNozzle size = 32 mm (1 1/4")

0.5 L = 4.0 m

8.0 m

4.25 m

180° Nozzle:S180 = 5.9 m

360° Nozzle:S360 = 4.53 m

0.5 W = 2.125 m


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8.6) Determination of pipe sizes and pipe run

System Limitations

Flow limitations at T-splits

Bull Tee Side Tee

Pipe arrangments at T-splits

Correct Incorrect

10-30%

90-70%

70-30%

30-70%

minimum lengthof 10 x nominalpipe diameter


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Pipe Size Estimation

Use table 4 to determine the pipe size Table 4: FM200 Flow in Schedule 40 Pipeaccording to the agent flow.

Note: Table 4 is for estimation purpose only.The final pipe size will be determinedby the hydraulic flow calculationsoftware.

Example:

Total quantity = 42 kg FM200®

(in 10 s) 4.2 kg/s find the next higher value in "Max. Flow " column

estimated pipe size = 32 mm (1¼")

General Piping Practices and Rules

Piping material must comply with the local regulations.

Always try to design a symmetric pipe run.

Example for balanced pipe run


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9) Pressure Venting

The designer of a fire suppression system should be aware that the discharge of any gaseous extinguishingagent into an enclosure will raise the pressure within that enclosure, which could affect the structural integrity ofthe enclosure.The protected enclosure will require a pressure relief device.

To calculate the free venting area, use the following formular:

Example: 42 kg FM-200® to be discharged (within 10 seconds).

Maximum overpressure allowed = 300 Pa.

0.05 m² free venting area is required.

A required free venting area (m²)

Q FM-200® flow (kg/s)

v specific volume of agent (m³/kg)*

∆p max. allowable pressure increase (Pa)** vHOM specific volume of the homogeneous

air / FM-200® mixture***

c2 resistance coefficient for the opening****

2

HOM

AgentAgentc

vp

vQA ×

×∆

×=

* Use 0,137 m³/kg for FM-200® .

** A value between 100 and 300 Pascal’s should be used if there is no other value offered by theclient or clients representative.

*** 0.6 is a good average value for 7,9% FM-200® concentration.

**** 0,5


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10) Bill of Material

This list contains the system parts to be supplied by TSP.

8 litre FM200 container assembly (EC)







4.5 litre FM200 container assembly (DOT)

8 litre FM200 container assembly (DOT)

16 litre FM200 container assembly (DOT)32 litre FM200 container assembly (DOT)






1 ¼ inch / 25mm union adaptor

2 inch / 50mm union adaptor

3 inch / 75mm union adaptor

Solenoid actuator - standard

Solenoid actuator - flameproof

Local manual actuator

Remote manual actuator (Mechanical)

Pneumatic actuator

Pressure trip

3/8 inch / 10mm Nozzle - 180°

3/8 inch / 10mm Nozzle - 360°

½ inch / 15mm Nozzle - 180°

½ inch / 15mm Nozzle - 360°

¾ inch / 20mm Nozzle - 180°

¾ inch / 20mm Nozzle - 360°

1 inch / 25mm Nozzle - 180°


1 ¼ inch / 32mm Nozzle - 180°

1 ¼ inch / 32mm Nozzle - 360°1 ½ inch / 40mm Nozzle - 180°

1 ½ inch / 40mm Nozzle - 360°



4.5 liter container bracket

8/16/32 liter container bracket

52/106/147/180 liter container bracket

343 liter container bracket

1 ¼ inch / 32mm manifold check valve

2 inch / 50mm manifold check valve

65mm 2 port manifold c/w check valve 25mm







100mm 2 port manifold c/w check valve 50mm100mm 3 port manifold c/w check valve 50mm












1 ¼ inch / 32mm discharge hose

2 inch / 50mm discharge hose

3 inch / 75mm discharge hose and check valve

3 inch / 75mm discharge hose 3

Manual release caution plate

Door caution plate (Lock off)

Door caution plate (No lock off)

Note:

• Manifolds are supplied from the UK only.

• Nozzles are provided in aluminium as standardfor Europe, but are available in brass or stainless

steel. For brass nozzles add ‘/B’ to regular partnumbers and for stainless steel add ‘/S’ to regularpart number.

• UL requires brass nozzles.

Optional Components:

Discharge Pressure Switch

Discharge Pressure Switch BASEEFA

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Guideline for TSP FM200 Systems Rev6.pdf

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