| |
ST ANDARDS OF MODEL APPROVAL AND INSPECTION TECHNOLOGY
FOR
GAS LEAKAGE DETECTORS (KFI 0309)
KFI =Korea Fire Equipment Inspection Coporation)
|
| |
| Ministry of Home Affairs Notice |
No. 24
|
(1990.12.14 ) |
Ministry of Home Affairs Notice
|
No. 1993-18 |
(1993. 01.07 ) |
Ministry of Home Affairs Notice
|
No.1994-60
|
(1994.12.08 ) |
Ministry of Home Affairs Notice
|
No.1995-39
|
(1994.09.25 ) |
Ministry of Home Affairs Notice
|
No.1997-98
|
(1997.12.11 ) |
Ministry of Government Administration
and Home Affairs Notice
|
No. 1998-42
|
(1998.03.07 ) |
Ministry of Governmen tAdministration
and Home Affairs Notice
|
No.1999-44
|
(1999.08.03 ) |
|
| |
| Article 1 (Purpose) |
| This Standard shall specify the standards of model approval
and inspection technology for gas leakage detectors regulated
in article 50, clause 3 of Fire Service Law and article
36 of enforcement order of the same law. |
| |
| Article 2 (Definitions) |
| The definitions of the terms used in this standard are
as follows. |
| 1. ¡°Alarm device¡± shall be a device intended to give
a fire alarm for an outbreak of fire or a situation which
fire is expected. Alarm device shall include automatic
fire detection system, battery for fire alarm device,
fire alarm system, current leakage alarm unit, and gas
leakage detector. |
| |
| 2. ¡°Gas leakage detector¡± shall be a device intended
to detect leakage of combustible gas or incompletely combusted
gas and then notify people concerned or users. However,
detectors without detection device or potable detectors
for inspection or detector alarming by an interlocking
device shall not be included (hereinafter called as detector) |
| |
| 3. ¡°Explosion-proof type¡± shall prevent the container
from busting or prevent outside gases from igniting when
an explosive gas is exploded inside the container. |
| |
| 4. ¡°Water-prooftype¡± shall have waterproof structure.
|
| |
| 5. ¡°Detecting part¡± shall be a part of gas leakage detector
(hereinafter called as Detector) that detects gas leakage,
sends the gas leakage signal to transmitter or receiving
part and makes sound for alarming. |
| |
| 6. ¡°Receiving part¡± shall be a device intended to receive
gas leakage signals from detecting part of gas leakage
detector, directly or via a transmitter, and then to notify
the people concerned or the fire department. |
| |
| 7. ¡°Join alarming part¡± shall be an accessory of detector
intended to receive a signal from receiving part of detector
and make an alarm sound. |
| |
| 8. ¡° accessories¡± shall be an additionally attached
device to detector to supply operation signal source to
zone alarm unit and fans for gas ventilation. |
| |
| 9. ¡°Separate type¡± is a detector with separate receiving
part and detecting part. |
| |
| 10. ¡°Self-contained type¡± is an detector with detecting
part and receiving part in one box. |
| |
| 11. ¡°Transmitter¡± shall be a device intended to give
signals from detector, manual fire alarm box (except M-type)
or detecting part of a gas leakage detector to c.i.e (except
M-type) or receiving part. Transmitter shall give control
and leakage signals or amplify signals to a fire extinguishing
system, a smoke control system, etc. |
| |
| Article 3 (Classification
of Gas Leakage Detector) |
| Detector shall be classified into self-contained detector
and separate detector by structure. And self-contained
detector shall be classified as a house-service device
and separate detector shall be classified as a business
and industrial device by purpose. In this case, a business
device shall have 1 circuit and industrial device shall
have 1 or more circuits. |
| |
| Article 4 (General Structure) |
| General structure of detector shall conform to the following
items. |
| 1. Case of receiving part of detector and detecting
part of separate type detector shall be made of incombustible
or flame retardant materials. The case made of steel shall
use over 1 mm thick steel plates and the case made of
synthetic resin shall use 2.5 times plates as thick as
steel (1.5 times for self-contained type or business device
of separate type). |
| |
| 2. Case of receiving part of detector and detecting
part of separate type detector made of synthetic resin
(except zone window, instruction board, lid for cabinet,
handle of switch, electric indicator, and indicating board
of name) shall not be damaged at the temperature of over
80¡ÆC. They shall be made of self-fire extinguishing materials. |
| |
| 3. Gas leakage detector attached on a building shall
be easily fixed with screw or nail, not with adhesive
tapes. |
| |
| 4. Detector shall have indicating lamp to see the condition
of power supply. |
| |
| 5. The parts which are possible to contain gas, like
detecting part of self-contained detector and separate
detector shall not make flame in the normal condition.
Detecting part of industrial separate detector shall conform
to one of the following explosion proof regulations. |
| A. Korean Industrial Standard |
| B. Standards from the gas related
laws (law of high pressure gas safety administration,
law of safety and business administration for liquefied
petroleum gas, law of city gas business) |
| C. Standards from the industrial
safety and health regulation |
| |
| 6. Detector shall be used only for detecting gas leakage
and alarming. However, terminal for signal, power connectors
for ventilation fan, GP type c.i.e, GP-type multiple c.i.e,
GR-type c.i.e and GR-type multiple c.i.e, which operate
control part in order to immediately stop liquefied petroleum
gas and city gas (include liquefied natural gas. the same
standards apply correspondingly to the following.) supply,
shall be used for other purpose. |
| |
| 7. The part like power shut-off switch or alarming density
adjustment part shall not be exposed outside. |
| |
| 8. A rated voltage circuit or a rated current circuit
shall be installed to maintain constant voltage and not
to be influenced by temperature change. |
| |
| 9. Detector shall be easy to operate, inspect, repair,
and replace parts and have durability. They shall not
make disturbing noise or interfering electric wave. |
| |
| 10. Detector shall not be functionally damaged by dust,
moisture and insect etc. |
| |
11. The parts whose mechanical and electric functions
are easily affected by corrosion
shall need rust-proof processing or anticorrosion processing
by paint and plate. Copper alloys or the materials with
corrosion resistance of more than the equivalent shall
be used for the terminals, screws and washer affecting
electric functions. |
| |
| 12. Wiring in equipment shall have a sufficient current
carrying capacity, and its connections shall be firmly
and accurately made. |
| |
| 13. Measures shall be taken incase of polarity to prevent
misconnection. |
| |
| 14. Adhesion of parts shall not cause functional abnormalities
and shall be firmly put together. |
| |
| 15. Measures shall be taken for current carrying parts
except wires and a moving bolster to prevent misconnection. |
| |
| 16. Easy-accessible charging unit shall be protected. |
| |
| 17. Metal case of device with over 60 V rated voltage
shall have earth terminals. |
| |
| 18. Detector shall be able to have stand-by power supply.
Installation of stand-by power supply shall conform to
following items. |
| A. Stand-by power supply shall
not be used as main power source of detector. |
| B. Stand-by power supply shall
have fuses to prevent damages from short circuits, etc. |
| C. Stand-by power supply shall
be used only when main power source is stopped |
| D. A monitoring device shall
be on the front side to watch the condition of stand-by
power supply |
E. Auto overcharge protection
systems like auto-chargers and related electric devices
shall be installed. However, those systems shall not be
installed if storage batteries are not damaged by over-charging. |
F. When Stand-by power supplies
are connected in parallel, measures shall be taken
to prevent reverse charge, etc. |
G. When storage batteries are
connected in series or in parallel, storage batteries
shall
have evenness in capacity (current, voltage). |
| H. Stand-by power supply shall
be cylindrical sealed nickel-cadmium storage battery or
sealed lead-acid battery. Stand-by power supply for 1
line (including self-contained detector) shall be able
to supply power and give an alarm for 10 min, after monitoring
20 min. Detector for 2 lines or more shall be able to
supply power and give an alarm. for 10 min after monitoring
of every connected circuits for 10 min. |
| |
| 19. (Delete 1995.9.25) |
| |
| 20. Protective measures shall be taken by heatproof
boards or holes for those affected by heat generated from
internal parts and etc. |
| |
| Article 5 (Structure of
Receiving Part of Separate Type Detector) |
| The structure of receiving part of separate detector
shall conform to following items. However, detector for
business shall not conform to clause 1, 5, 6 and 8. |
| 1. A switch shall be installed inside to open and close
both polarities of main power source simultaneously. |
| |
2. Protection devices such as fuses, breakers etc. shall
be installed to both lines of main
power source, 1 line of stand-by power supply circuit
(if stand-by power source is
installed) and circuits supplying power from receiving
part to external load. |
| |
| 3. (Delete 1997.12.11) |
| |
| 4 .(Delete1997.12.11) |
| |
| 5. Voltmeter can be installed to monitor voltage on
the front of main circuit and a power relay and reversion
switch shall be installed to load part. |
| |
| 6. A switch shall be in installed to stop operation
or sound of sound devices and used for its own purpose
(except those for 1 circuit). |
| |
| 7. If manual return switch is used, a sound signaling
device or a switch position warning lamp shall be installed. |
| |
| 8. A device monitoring gas density near detecting part,
operation tester for gas leakage indication and earth
continuity tester shall be installed on the front. However
those with single connectable line or devices indicating
power interruption of the detecting part to inform to
sounding device cannot conform to this provision. |
| |
| Article 6 (Functions of
Receiving Part of Separate Type Detecting Part) |
| Receiving Part of separate detector shall conform to
the following items. However, industrial devices cannot
conform to item number 1, 2 and 4. |
| 1. Gas leakage shall be indicated in case of receiving
gas leakage signal from other line when gas leakage indication
tester is operating. |
| |
| 2. Gas leakage shall be indicated, after receiving gas
leakage signals from 2 lines at the same time. |
| |
| 3. Gas leakage shall be indicated in case of receiving
gas leakage signal from other line when earth continuity
tester is operating. However those with single connectable
line or devices indicating power interruption of the detecting
part to inform to sounding device cannot conform to this
provision. |
| |
| 4. As soon as receiving the following signal, sound
devices and fault indicating lamp shall be operated automatically. |
| A. In case of operation of fuse,
_reaker and other protection device supplying power from
detecting part, receiving part and transmitter, whose
power is supplied from other transmitter, to external
load |
| B. In case that power source
of transmitter, whose power is not supplied by other transmitter,
is blocked and in case of operating of protection device
such as fuse and breaker of circuit supplying power from
the transmitter to external load |
| |
| 5. The time from receiving gas leakage signal to indicating
gas leakage shall be within 60 sec. |
| |
| 6. (Delete 1997.12.11) |
| |
| 7. In receiving signal according to the clause 14-a,
15-a of article 3 of Standards Model Approval and Inspection
Technology for Transmitter, sound alarm or indicating
lamp shall be operated automatically to notify mechanical
problems. |
| |
| Article 6 - 2 (Structure
and function of Suction Type Detector) |
| ¨ç The structure of suction type detector shall conform
to the following items. |
| 1. Devices indicating suction rate shall have structure
to display the suction quantity per unit time being readable. |
| |
| 2. Suction pump shall have enough capacity and operate
without abnormalities. |
| |
| 3. Air flow meter shall be easily read, and gas suction
rate shall be indicated by suction quantity per minute. |
| |
| 4. Filtering devices attached in air flow meter to prevent
dust suction, shall be installed in front of air flow
meter and shall be easy to replace. |
| |
| 5. The gas suction and venting pipes shall be made of
copper pipes with 4 mm ~ 6 mm inside diameter and connected
firmly with the connector like screws. The material of
copper pipes shall conform to KS D 530 1 (copper or copper
alloys pipe without seams) or more than equivalent in
strength and corrosion resistance. |
| |
| 6. The entrance of gas suction pipe shall be protected
from strainer (sintered metal of bronze, etc). |
| |
| 7. Suction types shall have test valve for suction rate
test. |
| |
| 8. Pipes of input terminal and output terminal of detecting
part shall prevent outside gas from igniting by inside
flame of pipe. |
| |
| 9. In case of the type which body and the diaphragm
of pump can be separated, the body and the diaphragm of
pump shall be fixed by metal band like stainless steel
or by bolt. |
| |
| ¨è Functions of suction type detector shall conform to
the following items. |
| 1. Suction rate shall be 1.5L or more when it is tested
at the exhaust pipe after stabilized for 30 minutes under
the condition of article 10. |
| |
| 2. Suction type detectors shall be airtight from the
front end of suction pipe to the back end of venting pipe. |
| |
| 3. Material of rubber shall conform to KS M 6518(physical
test for vulcanized rubber) and have more than equivalent
performance. |
| A. Tensile strength shall be
150 gravity kg per 1 cm1 or more. After being kept in
the air of 70¡¾2¡ÆC for 96 hr, the reduction rate shall
be 20 % or less. |
| B. Modulus of elongation shall
be 400 % or more. After put for 96 hours in the air of
70¡¾2¡ÆC, the reduction rate shall be 20 % or less. |
| C. Solidity shall be 70¡Æ or
less, after being kept for 24 hours at the temperature
of (-20¡¾2 ) ¡ÆC. The change of solidity shall not over
¡¾10. |
| D. Permanent compressive. contraction
ratio for rubbers shall be 50 % or less, after being kept
in the air of 100¡¾1 ¡ÆC for 70 hr. |
| |
| 4. Diaphragm for suction type detectors shall have corrosion
resistance and gas corrosion resistance. |
| |
| Article 7 (Test Device) |
| Devices for test of function regulated in article 6
shall conform to the following items. |
| 1. Test shall be conducted easily in front of receiving
part. |
| |
| 2. Continuity test of external wiring and measurement
of circuit resistance shall be conducted on each circuit
through appropriate _ethods such as done by electric indicator
etc. |
| |
| 3. Even in the case of short circuit or line disconnection,
tests shall be continued except tests of current leakage
or main sound device. |
| |
| 4. If stand-by power supply is installed, the device
testing the stand-by power supply shall be needed. In
this case of test, a switch which is automatic reversion
type shall be installed at the direct current side of
the rectifier. After changing to stand-by power supply
by this switch and letting actual load current flow, the
terminal voltage of the stand-by power supply shall be
measured. |
| |
| Article 8 (Structure and
Function of Parts) |
| In case that the following parts are required to be
used for current leakage alarm units, they shall conform
to the following items or more than the equivalent. |
| 1. Switches |
| A. Switches shall be easy to
use. Their resting points shall be clear and appropriate.
|
| B. Switches shall not be damaged
by the 10,000 times repetition test (5,000 times test
for power switches). The current twice as high as the
maximum operating current shall flow through the resistance
load at the maximum operating voltage of each contact
point. |
| C. Contact point shall withstand
the maximum operating current and have corrosion resistance. |
| D. In case of switches which
are blocked in the state of being laid down (mercury type
switch, etc.), special devices shall be needed to prompt
returning the switch to normal position. |
| |
| 2. Indicating lamps. |
| A. Light bulb shall have no
breaking of wire, luminous flux change, graphiting, current
reduction, etc. at the 130 % operating AC voltage for
20 hours. |
| B. Sockets shall firmly connect
with light bulb, and light bulbs shall be easy to replace. |
| C. At least two light bulbs
shall be connected in parallel except discharging lamp
or light emitting diode. |
| D. Appropriate covers shall
protect light bulbs, except light emitting diodes. |
E. Indicating lamps intended
to display a presence of current leakage (hereinafter
called as current leakage lamp) and those to display location
of zone which gas is leaked (hereinafter called as zone
lamp shall be yellow in ) condition.
However, zone lamps of receiving part which current leakage
lamp is installed or those with c.i.e shall not be yellow. |
| F. Indicating lamps shall be
clearly identified at the distance of 3 m away from the
front in ambient brightness of 3001x. |
| |
| 3. Electronic relays |
| A. Contact point shall be made
of G. S. alloy, or materials of better quality. |
| B. Electronic relays shall be
firmly attached not to be affected by self load and shall
have dust proof covers to protect contact point and moving
parts (except sealed electronic relay). |
| C. Electronic relays shall have
no functional or structural critical abnormalities when
subjected to the maximum operating current and voltage
via resistance load. |
| D. Contact points shall be used
as follows. |
| (1) Contact points for zone
sound signaling device or zone indicating equipment shall
not be used for other purposes (except those connected
with auxiliary relays) |
| (2) Power shall not directly
and concurrently supply to an internal load and an external
load through one contact point. |
| |
| 4. Electric indicators shall conform to KS C 1303 (Electric
Indicator) and voltmeters shall have full-scale ranges
between 140 % and 200 % of rated voltages of circuits
in which they are used. |
| |
| 5. Fuses |
| A. Fuse shall be with KS or
electric mark for the approved product conforming to the
requirements of KSC 8101 (Common Regulations of Wiring
Fuses) or KSC 6039 (Shell Type Fuses for Electric Devices). |
| B. Fuses shall be easy for inspection
and replacement. |
| C. Fuses shall be adhered not
to be loose fitting. |
| |
| 6. Sound devices (including a zone alarming part on
a gas leakage detector) |
| A. Sound devices shall produce
sound at an 80 % rated operating voltage. |
| B. Sound pressure of a main
sound device shall be 90 dB or more at an operating voltage
at distance of 1 m from the front center of the equipment
containing the sound device when it is tested in an anechoic
room. (70 dB or more those for business among self-contained
type and separate type) However_ those of system failure
indicating equipments shall be 60 dB or more. |
| C. When conducting the test
to ring for 8 hr continuously at the operating voltage
or to ring for 3 min and 20 sec and pause for 6 min and
40 sec at the rated voltage for a total of 20 hr, there
shall be no abnormalities in structure or function. |
| D. The insulation endurance
between charring unit and discharging shall be to withstand
for 1 min, A.C of effective of 500 V close to sinusoidal
wave of 60 Hz (1000 V for rated voltage between 60 V and
150 V, and 1000 V plus rated voltage multiplied by 2 for
rated voltage over 150 V). |
| E. The insulation resistance
between charring unit and discharging unit shall be 20
Mil or more, when measured with a DC 500 V insulating
tester. |
| |
| 7. Transformers |
| A. Transformers shall conform
to KS C 6308 (SmaH Power Transformer for Electric Devices)
or have better quality. |
| B. The primary rated voltage
shall be 300 V or less and the case industrial transformer
shall have an earth terminal. |
| C. Transformers shall withstand
the maximum continuous operating current. |
| |
| 8. Stand-by power supply |
| A. Stand-by power supply shall
not be used as main power source of detector. |
| B. Lead wires shall be appropriately
colored for identification. |
| C. (Delete 1997.12.11.) |
| D. (Delete1997.12.11.) |
| E. (Delete1997.12.11.) |
| F. (Delete1997.12.11.) |
| G. (Delete1997.12.11.) |
| H. Electric charging and discharging
tests for cylindrical nickel-cadmium storage battery shall
be conducted based on the fully discharged state. In this
case full discharge is to discharge at 0.6 V or less per
cell. And each lead storage battery shall be charged with
0.1 C current to fully charged state and left alone for
1 hr, and then discharged with 0.05 C current to the final
discharge voltage. |
| I. To conduct charging and discharging
tests for cylindrical nickel-cadmium storage battery at
room temperature, the fuHy discharged secondary shall
be charged with rated voltage and current of 1/20 C at
room temperature for 96 hr, and sealed lead-acid battery
shall be discharged to discharge final discharge voltage
and charged again with 0.1 C current for 48 hr. Then nickel-c_dmium
storage batteries and sealed lead-acid batteries shall
be able to be discharged with 1 C current for 48 min and
45 min or more, respectively. |
| J. To conduct high and low temperature
exposure test for cylindrical nickel-cadmium storage battery,
charge fully discharged cylindrical nickel-cadmium storage
battery with current of 1/20 C and with the ambient temperature
at (-10¡¾2) ¡ÆC and (50¡¾2) ¡ÆC for 96 hr and discharge it
at 1 C. After repeating this cycle three times, duration
for reaching final discharge voltage (Rated volume /1.414
V) shall be more than 20 min and there shall be neither
bulging in appearance nor leaking liquid. |
| K. The sealed lead-acid batteries
shall be completely charged with O. i C current for 48
hours and then, discharged with 0.05 C current for 1 hour.
Thereafter the batteries shall be able to maintain 95
% rated volume after more than 30 min. |
| L. In case that stand-by power
source is charged in reverse with current 1/5 C 1 C, safeguards
shall operate within 5 min and there shall be neither
bulging in appearance nor leaking liquid. |
| |
| 9. Semi-conductors shall have moisture proof processing
and anticorrosion processing and withstand the maximum
operating voltage and maximum operating current and shall
have water or corrosion resistance. |
| |
| 10. The wiring connecting detecting part and receiving
part (if there is a transmitter, the transmitter shall
be included) shall have sufficient capacity not to prevent
signal transmission. |
| |
| Article 9 (Accessories) |
| ¨ç Accessories shall not interrupt the functions of detector. |
| ¨è Accessories of detector shall not give operating signal
directly to breaking part. However, separate detector
for industrial use shall not conform to this provision. |
| |
| Article 10 (Test Environment) |
| Tests for detector shall be conducted at a room temperature
in the range between 5 ¡ÆC and 35 ¡ÆC and at a relative
humidity between 45 % and 85 % except specially regulated
test. |
| |
| Article 11 (Reception Indication) |
| Detector shall have proper reception indication and
conform to the following items. |
| 1. When detectors receive gas
leakage signal they shall automatically indicate gas leakage
with yellow leakage lamp or main sound device and concurrently
indicate the zone of gas leakage with the zone lamp. However,
self-contained detector or 1 circuit device shall not
have the leakage lamp and zone lamp, etc. |
| |
| 2. The indication of clause
1 shall be stopped by manual return switch. However, industrial
detector of self-contained detector and separate detector
shall, not have manual return switch. |
| |
| Detecting
gas |
Test
gas |
Operational
test density (%) |
Non-operational test
density (%) |
| Liquefied petroleum gas |
Isobutane (or butane, and so forth in this standard) |
0.45120 |
0.05 |
| Liquefied natural
gas |
hydrogen |
1.00 |
0.04 |
| methane |
1.25 |
0.05 |
| Isobutane |
Isobutane |
0.45 |
0.05 |
| Methane |
Methane |
1.25 |
1.00 |
| Hydrogen |
Hydrogen |
0.05 |
0.04 |
|
| |
| Article 12 (Maximum Load) |
| Detector shall have capacity to withstand the bigger
one between load when all circuits are working and ordinary
load continuously. |
| |
| Article 13 (Ambient Temperature
Test) |
| Receiving part of separate type detector shall have
no functional abnormalities at the ambient temperature
of 0¡ÆC ~ 40¡ÆC. |
| |
| Article 14 (Repetition
test) |
| Receiving part of separate type detector shall have
no functional or structural abnormality, after 10,000
times gas leakage indicating operation at a rated voltage. |
| |
| Article 15 (Transient Test) |
| Separate type detectors with current shall have no functional
abnormalities when subjected to the following tests for
15 sec. |
| 1. A test with a voltage of
500 V with an internal resistance of 50 Q at a pulse of
1 ms and at a repeated cycle of 100 Hz. |
| 2. A test with a voltage of
500 V with an internal resistance of 50 Q at a pulse of
0.1 ms and at a repeated cycle of 100 Hz |
| |
| Article 16 (Alarming Density
Test) |
| ¨ç After flowing electric current
by over 1 hours for stabilization, detectors for combustible
gas shall be tested by type of gas. Detectors shall give
alarm sound in operational test within 20 sec (however,
electrical delay type detector shall make alarm sound
within 20_60 sec in operational test density) while they
shall not give alarm sound in non-operational test density
within 5 min. |
| |
| Detecting
gas |
Test
gas |
Operational
test density (%) |
Non-operational testdensity |
| First |
Second |
(0/0) |
| Incompletely |
Carbon |
|
|
|
|
0.025 |
0.055 |
0.005 |
| combusted gas |
monoxide |
|
|
|
|
| |
| Remark: If the liquefied natural gas is detecting gas,
test gas of gas leakage detector shall be hydrogen or
methane. |
| |
| ¨è Tested by following table,
an detector for the incompletely-combusted gas shall make
alarm sound within 5 min at the first operational test
density and within 1 min at the second operational test
density after flowing electric current by over 1 hours
for stabilization. The detector shall not make alarm sound
in the non-operational test density for 5 min. |
| |
| Article 17 (Long Term Performance
Test) |
| Detector shall pass the alarming density test of article
16 and various gas test of article 19, after being charged
with electriCity for 60 days and then not charged with
electricity for another 60 days. |
| |
| Article 18 (Voltage Variation
Test) |
| Detectors shall pass alarming density tests of article
16 with the voltage fluctuation within rated voltage ¡¾
10 %. |
| |
| Article 19 (Various Gas
Test) |
| Detectors shall not make sound during the following
tests taken after flowing electric current by over 1 hour
for stabilization. However, detectors for incompletely-combusted
gas shall be only take a test of the clause 1. |
| 1. The test of putting detector
into 0.1 % ethanol gas for 5 min |
| 2. The test of putting detector
into the smoke of density regulated in article 19 of the
standards of model approval and inspection technology
for detector for 5 min (the operation test of optical
detector 2 class) |
| |
| Article 20 (Vibration Test) |
| Detectors (in case of separate type detector, it means
detecting part as same as in article 21, article 23, article
25 and Article 26) shall have no functional abnormalities
when vibrated at 4 mm peak-to-peak, in arbitrary direction
1,000 times per minute for 60 min. |
| |
| Test
gas |
A(%) |
B(%) |
| Methane |
2.5 |
6.5~7.5 |
| Hydrogen |
2.0 |
19~23 |
| Isobutane |
0.9 |
2.5~3.3 |
|
| |
| Article 21 (Temperature
Test) |
| Detectors (in the separate detector, it means detecting
part) shall have no functional abnormalities in the following
tests. |
| 1. Detectors shall pass the test of article 16 after
putting into the thermostat of -20¡¾2 ¡ÆC for 1 hour and
then that of 40¡¾2 ¡ÆC for 1 hour. |
2. Suction type detectors shall pass the test of Article
16 after three times putting into
the thermostat of -20¡¾2 ¡ÆC for 24 hours and then that
of 40¡¾2 ¡ÆC for 24 hours. Before having test of article
16 it shall be stabilized for 1 hour. |
| |
| Article 22 (Humidity Test) |
| Detectors shall have no functional abnormalities when
they take alarming density test according to article 16
after being k_ept at the temperature of 35 ¡ÆC ~ 40¡ÆC and
relative humidity over 85 % for 1 hour. |
| |
| Article 23 (Explosion Proof
Performance Test) |
¨ç Detection devices for detecting gas leakage shall
use STD 316 or more than the
equivalent 100-mesh nets of stainless steel wire. The
holes (through which gas
flows) of the net shall not be widen or changed in shape.
Detection devices of separate type detector shall be protected
with strainers (sintered metal of bronze). |
| ¨è The detector shall make sound for 7 hours at the test
gas density of A, and then charged with electricity for
1 hour at the test gas density of B. (The power source
shall be stopped twice for 1 sec) The detectors (except
detectors conforming to article 4-5 of explosion proof
structure) shall conform to the following items. The primary
test gas shall be isobutane gas. However methane or hydrogen
can be used according to the detecting gas type. |
| |
| Test
gas |
A(%) |
B(%) |
| Methane |
2.5 |
6.5~7.5 |
| Hydrogen |
2.0 |
19~23 |
| Isobutane |
0.9 |
2.5~3.3 |
|
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| 1. Detectors shall make alarm sound continuously for
the while charged with electricity. |
| 2. During the test, ambient gas of detectors shall not
be exploded. |
| 3. After the test, if the gas in the test box is ventilated,
alarm sound shall stop. If it has structure which alarm
sound is ringing continuously, the switch for return or
sound device shall be used to stop the alarm manually. |
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| Article 24 (Volume Test) |
| ¨ç Sound pressure of a main sound device shall be 90
dB or more at an operating voltage at distance of 1 m
from the front center of the equipment containing the
sound device in an anechoic room (70 dB for business of
self-contained type or separate type). However, those
of system failure indicating equipments shall be 60 dB
or more. |
| ¨è There shall be no alarming sound when supplying power
to detector, and no operating sound at distance of 1 m
from the front center of the equipment containing the
sound device. |
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| Article 25 (Dust Test) |
| Detectors shall not be damaged when subjected to the
alarming density test of article 16, charged with electricity,
just after the dust test of Standards of Model Approval
and Inspection Technology for Detector (KOFEIS 0301) article
31. |
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| Article 26 (Impact Test) |
| Detectors (except suction type detectors) shall not
be damaged when they take alarming density test according
to article 16, immediately after more than two sides of
an detector are once falling down from the height of 50
cm toward a 3 cm-thick wood board, charged with electricity,
on the concrete floor. |
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| Article 27 (Insulation
Resistance Test) |
¨ç Insulation resistance between each insulated charging
unit and the case of detector
shall be 5 MQ(between AC input terminal and case shall
be 20 MQ) or more when
measured with a DC 500 V insulating ohmmeter. However,
insulation resistance of the detector which has more than
10 lines connected to transmitters (except insulation
resistance between the AC input terminal and the case)
shall be over 50 MQ per line. |
¨è Insulation resistance between insulated cables shall
be 20 MQ or more when
measured with a DC 500 V insulation ohlnmeter. |
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| Article 28 (Insulation
Endurance Test) |
| According to the article 27, insulation endurance of
the aforementioned test part shall be to withstand for
1 min, AC of effective of 500 V close to sinusoidal wave
of 60 Hz (1000 V for rated voltage between 60 V and 150
V, and 1000 V plus rated voltage multiplied by 2 for rated
voltage over 150 V). |
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| Article 29 (Water proof
Test) |
| Water-proof type transmitters shall not store water
inside and shall not damaged any parts or functions when
transmitters on normal position are exposed in clean water
falling at the angle of (45¡¾2)¡Æ degrees from the upper
front side at the speed of 3 mm/min for one hour. |
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| Article 29 - 2 (Electromagnetic
Injury Test) |
| Detectors shall not have fault alarm, gas leakage false
alarm or other abnormality during or after the test of
following electromagnetic injury test in charged with
electricity. |
| 1. A test of radiating frequency band of radioactive
materials 30 MHz, 50 MHz, 75 MHz, 144 MHz, 150 MHz, 460
MHz, 470 MHz, 850 MHz, 900 MHz, and 1000 MHz on detectors
with the spreading strength of 10 V per meter for 1 min. |
2. A test of radiating frequency between 30 Mhz and
1000 MHz, with the spreading
strength of 10 V per meter continuously to detectors from
1 m apart. |
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| Article 30 (Marking and
Accessories) |
| ¨ç Separate type shall contain the following items in
an easily recognizable area not to be erased easily. |
| 1. Receiving part |
| A. Type and model |
| B. Model approval number |
| C. Manufacturing date, manufacturing number |
| D. Manufacturer_ name or commercial name (when the manufacturer
and the seller (importer) are different, separately mark
them.) |
| E. Treatment guide and handling cautions |
| F. Rated voltage and current of main power source |
| G. Number of connectable lines, maximum number of transmitter,
the model approval number of connectable transmitter and
the detecting part number |
| H. Type, rated volume, rated voltage and cautions of
storage batteries if stand-by supply is installed |
| I. Standard delay time for delay types |
| 2. Detecting part |
| A. Detecting gas and operating temperature |
| B. Operating place or purpose |
| C. Type of detection device (in case of explosion proof
structure, separate marking of the explosion-prooftype
and explosion proof grade) |
| D. Model approval number of clause 1-b, detecting part
number |
| 3. Terminal mark on terminal plate |
| 4. Separate markings of water-prooftype |
| 5. Separate markings of open and close near control
handling method, etc. |
| 6. Rated current near the fuses and fuse holders |
| 7. Guidelines for Installation and treatment. |
| 8. Separate markings of explosion-proof type? and explosion
proof grade |
| ¨è Self-contained type shall be indelibly marked with
the items of clause 1-a, f, and i and clause 2-a and c,
clause 3, and clause 7 on easily visible parts. |
| ¨é Detector shall have the following accessories. |
| 1. Preparatory light bulb (incandescent lamps only) |
| 2. Preparatory fuse (excluding self-contained type) |
| ¨ê The front side of detectors shall be marked with the
phrase of as leakage detector? and the name of detecting
gas. Also, the details about warranty (period, contents,
A/S, self-inspection stamp, etc.) shall be indelibly marked
on wraps, or handling manual or easily visible parts. |
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| Article 31 (Detailed Regulations) |
| The detailed regulations for the enforcement of this
standard shall be determined by the Minister of the Ministry
of Government Administration and Home Affairs. |
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ADDITIONAL
CLAUSE (1990.12.14.) |
| |
| Article 1 (Date of Enforcement) |
| This standard shall be effective as from the day notified. |
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| Article 2 (General Interim
Measures of Lapse Concerning Model Approval and Model
Modification Approval) |
| As for the approved fire protection machinery and objects
in the model approval or model modification approval based
on the previous regulations at the time of enforcement
of this standard and those not suitable for this standard,
they can apply for the model approval or model modification
approval based on this standard within 6 months as of
the date of enforcement of this standard and after 6 months,
the model approval and model modification .. approval
based on the previous standard shall be regarded as cancelled. |
| |
| Article 3 (General Interim
Measures of Lapse Concerning Individual Inspection) |
| As for the approved fire protection machinery and objects
in the model approval or model modification approval based
on the previous regulations at the time of enforcement
of this standard, they can apply for individual inspection
based on the previous regulations within 6 months as of
the enforcement of this standard. However, as for those
applied for individual inspection within that time period
and rejected fire protection machinery and objects, they
can apply for inspection again within 1 month as of the
date receiving the notice of rejection regardless of reasons. |
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ADDITIONAL CLAUSE (1993.1.7.) |
| |
| This standard shall be effective as from the day notified.
However, article 30, clause 4 shall be effective as from
April 1, 1993. |
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ADDITIONAL CLAUSE (1994.12.8.) |
| |
| Article 1 (Date of Enforcement) |
| This standard shall be effective as from the day notified. |
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| Article 2 (General Interim
Measures for Model Approval andModelModificationl/pproval) |
| As for the approved fire protection machinery and objects
in the model approval or model modification approval based
on the previous regulations at the time of enforcement
of this standard and those not suitable for this standard,
they can apply for the model approval or model modification
approval based on this standard within 6 months as of
the date of enforcement of this standard and after 6 months,
the model approval and model modification approval based
on the previous standard shall be regarded as cancelled. |
| |
| Article 3 (General Interim
Measures for Individual Inspection) |
| As for the approved fire protection machinery and objects
in the model approval or model _ modification approval
based on the previous regulations at the time of enforcement
of this standard, they can apply for individual inspection
based on the previous regulations within 6 months as of
the enforcement of this standard. However, as for those
applied for individual inspection within that time period
and rejected fire protection machinery and objects, they
can apply for inspection again within 1 month as of the
date receiving the notice of rejection regardless of reasons. |
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ADDITIONAL CLAUSE (1995.9.25.) |
| |
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| Article 1 (Date of Enforcement) |
| This standard shall be effective as trom the day notified. |
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| Article 2 (General InterimMeasuresofModelApprovalandmodelModificationApproval) |
| The gas leakage detector, not conforming to this standard
in spite of receiving the model approval or model modification
approval according to the previous standard, shall apply
for a model approval or model modification inspection
until March 20, 1996. However, the model approval or model
modification approval shall be regarded as not valid if
the term passes. |
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| Article 3 (General Interim
Measures of Lapse Concerning Individual Inspection) |
| The fire extinguishing equipment, receiving model approval
or model modification approval according to the previous
standard, shall apply for an individual inspection until
March 20, 1996 according to the previous standard. The
disqualified extinguishing equipment (except rejected
fire protection machinery and equipment because of incomplete
manufacturing), shall be reapply for an individual inspection
on within 1 month from a receipt date of the notice of
disqualification limited to I time, regardless of application
period. |
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ADDITIONAL CLAUSE (1997.12.11.) |
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| Article 1 (Date of Enforcement) |
| This standard shall be effective as from the day notified. |
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| Article 2 (General Interim
Measures for Model Approval and Model Modification Approval) |
| The gas leakage detector, not conforming to this standard
in spite of receiving the model approval or model modification
approval according to article 17 of the previous standard,
shall apply for a model approval or model modification
inspection until March 7, 1997. However, the model approval
or model modification approval shall be regarded as not
valid if the term passes. |
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| Article 3 (General Interim
Measures of for Individual Inspection) |
| The fire extinguishing equipment, receiving model approval
or model modification approval according to the previous
standard, shall apply for an individual inspection until
March 7, 1997 according to the previous standard. The
disqualified extinguishing equipment shall be reapply
for an individual inspection on within 1 month from a
receipt date of the notice of disqualification, regardless
of application period. |
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ADDITIONAL CLAUSE (1998.3.7.) |
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This standard shall be effective
as from March 8, 1998. |
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ADDITIONAL CLAUSE (1999.8.3.) |
| |
| Article 1 (Date of Enforcement) |
| This standard shall be effective as from 10 days after
the date of Notice. However, article 2, clause 2, article
16, clause 2 and related items in article 19 (gas leakage
detector for incomplete combustion gas) shall be effective
as from 3 months after the day notified. |
| |
| Article 2 (General Interim
Measures for Before Product Inspection) |
| Gas leakage detectors having model approval under the
previous standard, are required to apply for before product
inspection under the standard within 3 months from the
date of enforcement and after 3 months from the date of
enforcement the product intend to apply for before product
inspection shall conform this standards. |
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