jis c8364-r
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C 8364:2008
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Preface ···························· ····················· ········· ······························ ··········· ··················· ······························ · ····························· ······ One
1 Scope ·························· ····················· ········· ······························ ··········· ··················· ······························ · ······················· One
2 Normative references ·························· ····················· ········· ······························ ··········· ··················· ······························ · ······················· One
3 Terms and definitions ······························ ················ ·············· ······························ ······ ························ ·························· · · · · ··········· One
4 Types and ratings ······························ ················ ·············· ······························ ······ ························ ·························· · · · · ··········· Five
5 Legal ·························· ····················· ········· ······························ ··········· ··················· ······························ · ······················· Six
5.1 Standard Conditions ························ ······················ ········ ······························ ············ ·················· ······························ · · ············ Six
5.2 Special conditions ························ ······················ ········ ······························ ············ ·················· ······························ · · ············ Six
6 Performance ···························· ···················· ·········· ······························ ·········· ···················· ······························ ······························ Six
6.1 Temperature rise ······························ ················· ············· ······························ ······· ······················· ··························· · · · ················ Six
6.2 Insulation resistance ······························ ················· ············· ······························ ······· ······················· ··························· · · · ················ Sev
6.3 Power Frequency withstand voltage ······················ ······················· ······· ······························ ············· ················· ······························ · · · ····· Sev
6.4 Rated short time withstand current ······················ ······················ ········ ······························ ············ ·················· ······························ · · ······ Sev
6.5 Strength level ······························ ················· ············· ······························ ······· ······················· ··························· · · · ················ Eigh
6.6 vertical intensity ······························ ················· ············· ······························ ······· ······················· ··························· · · · ················ Eigh
6.7 Impact Strength ······························ ················· ············· ······························ ······· ······················· ··························· · · · ················ Eigh
6.8 degree of protection against water for outdoor bus duct ············ ····························· · ······························ ··················· ··········· ······ Eigh
6.9 Fire Resistance of bus duct fire ·················· ·························· · · · · ······························ ················ ·············· ························· Eigh
6.10 Heat-cycle performance of the instrument and disconnect plug ······························ ·········· ···················· ······························ · · · Eigh
6.11 for the branch opening and closing apparatus with an operating mechanism connecting the handle or cover ····· ······························ ·
····························· ············
Nin
6.12耐過ignition performance of the thermal performance and insulation resistance ······························ ········· ····················· ····························· ·
························
Nin
7 Structure ···························· ···················· ·········· ······························ ·········· ···················· ······························ ······························ Nin
7.1 Structure of the bus duct ······················ ························ ······ ······························ ·············· ················ ······························ · · · · · · · · Nin
7.2 Structure of the connection equipment for t he branch ······························ ············· ················· ······························ · · · ··························· ··················11
8 material ···························· ···················· ·········· ······························ ·········· ···················· ······························ ···························· 11
8.1 Conductor ···························· ···················· ·········· ······························ ·········· ···················· ······························ ························· 11
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(1)
8.2 insulator ··························· ···················· ·········· ······························ ·········· ···················· ······························ ······················ 11
8.3 out of boxes and equipment for branch duct connections ······························ ·········· ···················· ······························ ···························· 12
9 Test methods ·························· ····················· ········· ······························ ··········· ··················· ······························ · ····················· 13
9.1 General requirements ························ ······················ ········ ······························ ············ ·················· ······························ · · ·········· 13
9.2 Structural testing ······························ ················· ············· ······························ ······· ······················· ··························· · · · ·············· 13
9.3 Temperature rise test ························ ······················ ········ ······························ ············ ·················· ······························ · · ·········· 13
9.4 Insulation resistance test ························ ······················ ········ ······························ ············ ·················· ······························ · · ·········· 14
9.5 Power Frequency withstand voltage test ······························ ·············· ················ ······························ · · · · ·························· ··················· 14
9.6 Rated short time withstand current test ······························ ············· ················· ······························ · · · ··························· ··················· 15
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9.7 Strength level test ························ ······················ ········ ······························ ············ ·················· ······························ · · ·········· 17
9.8 vertical strength t est ························ ······················ ········ ······························ ············ ·················· ······························ · · ·········· 17
9.9 Impact test ······························ ················· ············· ······························ ······· ······················· ··························· · · · ·············· 17
9.10 degree of protection for water tests for outdoor bus duct ·········· ······························ ······························ ···················· ······ 19
9.11 The bus duct fire test fire ·················· ·························· · · · · ······························ ················ ·············· ····················· 19
9.12 and the heat cycle test plug-in removable appliances ······························ ·········· ···················· ······························ · 20
9.13 Test equipment connections for t he branch opening and closing operation mechanism with the handle or cover ······························ ·····
························· ······
21
9.14 Performance Test performance and resistance to ignition of the thermal insulation耐過············ ·························· · · · · ······························ ············
·············· · ·
21
9.15 Inspection and testing electrical wiring work ················· ························· ····· ······························ ··············· ··············· ·················· 21
10 inspection ···························· ···················· ·········· ······························ ·········· ···················· ······························ ·························· 21
10.1 format checks ······························ ················· ············· ······························ ······· ······················· ··························· · · · ············ 21
10.2 Delivery Inspection ······························ ················· ············· ······························ ······· ······················· ··························· · · · ············ 22
11 more products called ······························ ··············· ··············· ······························ ····· ························· ························· ····· ······· 22
12 view ···························· ···················· ·········· ······························ ·········· ···················· ······························ ·························· 22
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White Paper
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Japanese Industrial Standards JIS
C 8364 : 2008
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Bus duct
Busways
Preface
This standard was established in 1962, has come to today after six subsequent amendments. The last revision in 1995.
Is made, the relevant laws and fire laws and technical standards for electrical equipment for subsequent advances in technology such measures
consistent with the revisedTogether with the amendment to the current products to address the situation.
One Scope of app lication
This standard is less than 1 000 V alternating current (less than 1 000 Hz frequency) and its Affiliated below 1 500 V dc bus duct or
Prescribed for the product family. Except trolley bus duct.
Furthermore, in this context and accessories, Endokuroza, refers to equipment and feed-box for branch connections.
Two Normative reference
The standards listed below, are incorporated by this standard, forming part of the provisions of this standard. These
Normative references, the latest edition (including any amendments.) Ap plies.
JIS A 1304 test method portion of the building structure fire
JIS C 0920 grade electrical equipment p rotected by the outer (IP Code)
JIS C 1302 Insulation Testers
JIS C 1602 Thermocouple
JIS C 2110 Test Method for Dielectric Strength of Solid Electrical Insulation M aterials
JIS C 3005 Test Method Rubber and plastic insulated wire
JIS C 60695-2-10 fire test - electrical and electronics - glow-wire test app aratus and general test methods
JIS C 60695-2-11 fire test - electrical and electronics - glow-wire flammability test method for end products
JIS K 7113 plastics tensile test method
JIS Z 8703 standard conditions of test site
JIS Z 8721 how these colors - three attributes displayed by
ThreeTerms and definitions
The main terms and definitions used in this s tandard are as follows.
3.1
Bus duct
Supported by an insulator or a conductor bare, naked and covered with an insulated conductor or an assembly into the duct.
3.2
Duct
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T wo
C 8364:2008
Box body coated with an insulator into a conductor or a bare conductor.
3.3
Bare conductor bus duct
Supported by an insulated conductor bus duct naked.
3.4
Insulated conductor bus duct
Coated with an insulating bus duct bare conductors.
3.5
Bus duct fire
Bus duct having a fire resistance.
3.6
Feeder bus duct
Have a branching bus duct.
3.7
Plug-In Bus Duct
Provided a plug socket, plug-in bus duct can be branched by instruments.
3.8
Straight
Linear bus duct .
3.9
Tapp ed bus duct
And intermediate in the termination bolt fixtures, equipment, bus duct taps to connect with a wire and so on.
3.10
Elbow
Bent at any angle in bus duct.
3.11
Offset
Bus duct with a step.
3.12
T
Three directions can be connected to the bus duct.
3.13
Cross
Bus duct can be connected to the four directions.
3.14
Reducer
Bus duct can be connected together with different rated current bus duct.
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3.15
Duct Expansion Bus
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And / or heat shrinkable bus duct having a structure to absorb the amount of change or thermal expansion.
3.16
Bus duct t ransposition
Replaced in the position of the bus duct in a duct cross-conductor. And averaging the impedance of each phase, the p hase sequence
Intended to be changed.
3.17
Endokuroza
Closed end of the bus duct components.
3.18
Feed-box
Connect power to the bus duct components.
3.19
Connection equipment for the branch
Generic plug-in app liances and equipment bolted.
3.20
Instrument plug-in
Insert the plug into the plug socket bus duct, bus duct unit to connect to a conductor such as by clips
Equipment.
3.21
Plug-In Breaker
Equipment with built-in circuit breaker p lug.
3.22
Plug-In Switch
Plug-in switch with built-in appliances.
3.23
Plug-In Box
Has no internal switching mechanism, with the only instrument p lug-in terminals for wire connection and fuse holders or equipment.
3.24
Bolt Supplies
By tightening the bolts to the tap of a tapped bus duct to connect equipment.
3.25
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Bolt-on breaker
Bolt with an internal circuit breaker equipment.
3.26
Bolt-on switch
Bolt with an internal switch equipment.
3.27
Bolt-on box
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Has no internal switching mechanism, with only t he terminal equipment for connecting bolt or wire fuse and holder tool.
3.28
Handle operating mechanism
Plug-breaker, p lug-in switch, lid op en and close the bolt on bolt-on breakers and switches
Without op ening and closing mechanism, the op eration performed by the handle.
3.29
Cover operating mechanism
You can open and close the lid of the bolt-on p lug-in switch and the switch by opening and closing operation of the switch line
Selling Organization.
3.30
Clearance
The shortest space of two isolated bare live parts.
3.31
Creepage distance
Shortest dist ance along the surface of the insulating material between two conductive parts.
3.32
Rated short time withstand current
Under the t erms of the regulation circuit, t he prescribed time, short-t ime current limit is also not allowed to live in the bus duct abnormalities.
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Four Types and ratings
Type of bus duct and ratings tables, one with.
Table 1 - Types and Ratings
Type
Name FormPole
Number
Rating
Current
A
Rating
Voltage
V
Rated short
Withstand curren
A
I ndoo r In sulat ed co nduct or
Bare conductor
Form of ventilation
Form a non-ventilated
-
Outdoor Insula ted conductor
Bare conductor
Form of ventilation
Form a non-ventilated
Feeder bus duct
Straight
Elbow
Offset
T
Cross
Reducer
Expansion Bus
Duct
Tapped bus duct
Transposition bus
Sudakuto
Fireproof I ndoo r In sulat ed co nduct or
Bare conductor
Form a non-ventilated
Bus duct
Plug-In Bus Duct
-
I ndo or In sulat ed co nduct or
Bare conductor
Form of ventilation
Form a non-ventilated
T wo
Three
Four
60
100
200
300
400
600
800
1 000
1 200
1 500
1 600
2 000
2 500
3 000
3 500
300
300a)
600
750a)
1 000
1 500a)
5 000
7 500
10 000
14 000
18 000
22 000
25 000
30 000
35 000
42 000
50 000
60 000
65 000
75 000
85 000
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4 0004 500
5 000
5 500
6 000
90 000100 000
125 000
150 000
200 000
Endokuroza - - - - -
Feed-box - - - 300
300a)
600
750a)
1 000
1 500a)
-
Plug-in
Breaker
Bolt
Breaker
Handle operation
Internal switching operations
T wo
Three
Four
- - -
Plug-in
Switch
Bolt
Switch
Handle operation
Cover Operations
Internal switching operations
Cartridge fuse
Plug fuse
T wo
Three
Four
- - -
Fused Cartridge fuse
Plug fuse
Accessories
Plug
Instruments in
Toolb)
Bolt
On instruments
Toolb)
Plug-in
Box
Bolt
Box Fuse -
T wo
Three
Four
- - -
Not ea)
Shows the DC volt age.b)
Rated voltage and rated current of equipment and instruments plug-bolt, rated current and rated current, such as a built-in circuit breaker
And pressure.
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C 8364:2008
Five Use conditions
5.1 Standard Terms and Conditions
5.1.1 General requirements
Terms and Conditions and Standard 5.1.2 and 5.1.3 refers to the conditions applicable to either.
5.1.2 Terms of Use for indoor bus duct
a) the ambient temperature is ambient temperature, and -5 ~ +40, and the average ambient temperature was measured over 24 hours,
And below 35.
b) relative humidity Humidity: 85% at 40 and the highest temperature. However, for example, at t emperatures as low as 20
The humidity may be 90%.
c) above sea level elevation of the place of use, and less than 2 000 m.
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d) dust of the air surrounding the state of air pollution, smoke, corrosive or flammable gases, st eam and st ain with salt,
To be negligible.
5.1.3 Terms of Use for outdoor bus duct
a) the ambient temperature is ambient temperature, and -25 ~ +40, and the average ambient temperature was measured over 24 hours,
And below 35.
b) relative humidity Humidity does not affect t he extent and even cause condensation inside the bus duct.
c) Elevation above sea level where used, and less 2 000 m.
d) dust of the air surrounding the state of air pollution, smoke, corrosive or flammable gases, st eam and st ain with salt,
To be negligible.
e) snow, rain and snow sunlight, to be negligible. Rain, temperature and sunlight are subjected.
5.2 Special Conditions
And the special conditions applicable to any of the following cases, when used in this state, t he part ies agreed on settlement
Must.
a) ambient t emperature, humidity , altitude condensation and 5.1 exceed the p rovisions.
b) In except ional speed or condensation inside the bus duct, temperature and / or humidity changes happ en.
c) Dust , smoke, corrosive or radioactive particles, if there is significant contamination of t he atmosphere with steam or salt.
d) Exposure to strong magnetic fields or strong electric field.
e) Extreme temperature, for example, exposure to radiation from the furnace.
f) If the snow is particularly high.
g) -location there is a risk of fire or explosion.
h) exposure to severe vibration and shock.
i) I built the machine, by being recessed in the wall, breaking capacity is affected or where the current capacity
Installing the.
Six Performance
6.1 Temperature rise
The bus duct temperature rise is 9.3 when tested by either temperature rise well beyond the following limits for
They do not. In this case, the reference ambient temperature shall be 40.
a) limit the surface temperature of the surface temperature of the bus duct bus duct ceiling, the t able 2 and shown in the.
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Table 2 - bus duct ceiling surface temperature
Unit K
PartDuct that can be accessed That can be accessed while driving touch
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Surface Surface of the duct does not need to be
Metal 30 55
Synthetic resin 40 55
b) materials used to limit the internal temperature inside the bus duct bus duct, temperature limits for parts and equipment
Degree, according to the following conditions specified by the manufacturer.
1) The temperature of the ceiling insulation is in contact with the conductor insulator, shall not exceed the maximum allowable temperature of the
insulator Not.
2) conductor
- The temperature must not cause deterioration of mechanical strength to the conductive material .
- The temperature must not adversely affect the equipment connected to the conductor .
- Surface temperatures adversely affect t he prop erties of the material and plug contacts should be.
3) The ceiling temperature of the conductor connecting the conductor connection, t he table 3 and values shown.
Table 3 - Limits of the junction temperature rise
Unit K
Where members Temperature rise
Bare copper or bare copper alloy 50
Tin-plated 65Such as boltingAccording to t he connection
Or silver-plated
Nickel plat ing75
Bare copper or bare copper alloy 35
Tin-plated 55Contact area
Or silver-plated
Nickel plat ing65
Bare copper 50Screw or bolt it to the
What is connected to t he outer conductor
Pins
Silver-plated, nickel plating
Come or tin-plated65
4) The temperature rise of conductors insulated conductor t hat connects to the external terminal 2) by a temperature rise of the connecting part 3
by. SimplyHowever, the maximum allowable temperature of the insulating material used for outer insulated conductor terminal 2) or 3) is less than the
isolation of theTo apply the permissive temperature.
6.2 Insulation resistance
Insulation resistance is 9.4 must be at least 5 MΩ when tested by.
6.3 Power frequency withst and voltage
Power frequency withstand voltage is 9.5 when tested by the need to endure it.
6.4 Rated short time withstand current
Rated short time withstand current is 9.6 when tested by the following shall be compat ible.
a) cracks in the insulating material and harmful damage, deformation and damage from harmful and practical parts that make up the bus duct
You should not occur.
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C 8364:2008
b) Ingress Protection (IP Code), there is less variation in the reduce clearances and creepage distances are sp ecified and they do not .
c) There deformation prevents the insertion of the plug-in unit should not be.
d) 6.2 and 6.3 must retain the performance shown.
6.5Horizontal intensity
Straight horizontal intensity is 9.7 when test ed by the following shall be compat ible.
a) if there is any damage to the joints and parts should.
b) degree of p rotection, there is less variation in the reduce clearances and creepage distances are specified and t hey do not.
c) After the test the horizontal intensity, 6.3 must retain the performance shown.
6.6 Vertical intensity
Vertical strength of a facility in the vert ical bus duct, 9.8 when tested by, shall comply with the following.
a) cause damage or permanent deformation or practice harmful to the support ing parts of the conductor, the conductor must have moved.
b) 6.2 and 6.3 must retain the performance shown.
6.7 Impact Strength
6.7.1 Impact strength of the bus duct
Impact strength of the linear bus duct is 9.9 when tested by the damage or cracks on the practical parts of the harmful
Without which, and the 6.2 and 6.3 shall hold the p erformance shown.
6.7.2 Impact strength of the outer case of the synthetic resin equipment for branch connections
Equipment for the branch connecting the outer case of synthetic resin, 9.9 when tested by the cracking and damage from harmful practical
You should not occur.
6.8 Degree of protection against water for outdoor bus duct
Degree of protection against water for outdoor bus duct, the following a) and b) must comply with.
a) JIS C 0920 number 3 bus duct with the performance of the property referred to in the second degree of protection, a 9.10) by the line test
When was no puddles can cause harmful in the duct, and 6.2 and 6.3 are shown in maintaining the performance
Shall be.
b) JIS C 0920 4-digit bus duct with the p erformance characteristics referred to in the second degree of p rotection, 9.10 b) the line test
When was no puddles can cause harmful in the duct, and 6.2 and 6.3 are shown in maintaining the performance
Shall be.
6.9 Fire Resistance of bus duct fire
Refractory bus duct is 9.11 when tested by the table 4 shall comply with the performance.
Table 4 - fireproof
Measurement period Test Performance
1 500 V AC voltage, with 1 minute withstand voltage test Bear Before h eating
Insulation resistance test using a 500 V insulation tester 50 MΩ or higher
During heating 600 V AC voltage applied to the t est in the heat for 30 minutes Cause a short circuit
Heat just before the end Insulation resistance test using a 500 V insulation tester More than 0.1 MΩ
After completion of the heating1 500 V AC voltage, with 1 minute withstand voltage test Bear
6.10 Heat-cycle performance of the instrument and disconnect plug
Heat-cycle performance of the inst rument and disconnect p lug-in 9.12 by detachable test, temperature rise due to rated current
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Heat cycle test and when tested, the temperature rise at the end of 84 cycles, heat conduction, the following: a)
And b) have at least 5 K higher than the value of should.
a) the rated current through removable after the test, the temperature rise when the temperature is constant on each conductor of the branch.
b) temperature rise caused by current flow measured at t he end after 42 cycles.
6.11 for the branch opening and closing apparatus with an operating mechanism connecting the handle or cover
Equipment for the branch connecting with the handle or cover operating mechanism is 9.13 when tested by parts of the equipment and paid
Have caused a defect.
6.12耐過ignition performance of t he thermal performance and insulation resistance
Parts made of insulating material used in bus duct, t he temperature has been reached by the current overload of live parts or accident,
Do not fire when the fire or flames shall not spread. Its performance is 9.14 tests performed by
When the addition or not cause burning or glowing of the specimen, or the next a) and b) must comply with.
a) a flame or glowing of the specimen, disappear within 30 seconds after removal of the glow-wire.
b) does not ignite the wrapp ing tissue p laced in the position of 200 mm below the specimen.
SevenStructure
7.1 Structure of the bus duct
Structure of the bus duct is 8.1 conductor 8.2 or coated with an insulating support, this 8.3 not containing duct,
Shall comply with the following.
a) steel duct is subjected to an appropriate rust preventive.
b) the mutual connection of the conductors, in contact with the plug-in appliances and equipment connections and bolt is plated,
Must complete the electrical contact structure. However, less than 100 A rated current, and the material of the conductor
In the case of copp er or copper alloy may omit the p lating of the conductor connection.
c) Duct connecting portion can be securely connected to the mechanical and electrical, and you can check the inside of an opening or
Must be fitted with a bar. However, because of sp ecial shapes, if unavoidable structural clause 6 to
If you meet the p rescribed performance, may取Ri付Kenaku cover for inspection.
d) degree of protection of the bus duct is, JIS C 0 920 numbers must be at least two characteristics defined in the first .
e) Degree of protection against water for outdoor bus duct, JIS C 0.92 thousand numbers must be at least three characteristics defined in the
second Not.
f) In refractory bus duct, the duct that you need to block the flue is fitted with a fireproof shield
Should be.
g) Plug-in bus duct or branch of bus duct taps tapped into the plug socket, attach the cover
Only must.
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h) The equipment for connecting a branch duct and attaching the ground wire, and be fitt ed with a ground terminal of sufficient capacity for
They do not.
i) Rated current value of the neutral conductor is greater than or equal to the rated current of the ot her conductors.
j) Clearance and creepage distances are in Table 5 must be greater than or equal. However, the width of the groove on the surface of the boil sure
insulator Depth, 1.5 mm less than the height of the ribs, or grooves or ribs should be there.
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Table 5 - Minimum creepage distance and minimum sp ace
Insulation distance
mmRegionRated voltage
V
Space Creeping
300
300a)
5.5 T enb)
600
750a)
Eight 20c)
1 000
1 200 a) 14 32
Very different between them and the bare charge
Between bare live part s and the no n-metal part s
1 500a)
14 40
Not ea)
Shows the DC volt age.b)
For indoor bus duct m ay be as 5.5 mm .c)
For indoor bus duct m ay be a 10 mm.
k) how to determine the clearance and creepage distances, figure 1 shows.
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Figure 1 - Determination of the clearance and creepage
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l) To dist inguish the ground or phase, if you need to identify the conductor, the display clearly and legibly marked in a manner easily
File.
m) coating paint color when the duct is usually, JIS Z 8 721 to 5Y 7 / 1 to be prescribed.
7.2 Connection equipment for the branch structure
Structure of the connection equipment for the branch, then you must comply.
a) plug-in appliances such as clips, to ensure that contact with the conductor of the bus duct, or the conductor temperature rise
The inst rument is removable, it must change its retent ion.
b) temperature limits of the contact clip instrument p lug-in tables 3 through.
c) When attached to t he bus duct appliances for branch connections, shall maintain a sp ecified degree of protection.
d) shall be structured for easy mounting and replacement of t he fuse wire not.
e) Paint colors when painting the outer case of the connection equipment for the branch, usually, JIS Z 8 721 to 5Y 7 / 1 to be prescribed.
EightMaterial
8.1 Conductor
The conductor cross sections can be energized by having a current rating of copper, copper alloy, aluminum or aluminum alloy
Used. However, the bus duct is fire resistant, copper or copper alloy shall be used. See the material used for the conductor
For example consider table 6 shows.
Table 6 - Example of materials used for the conductor
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Type Standard
Copper JIS H 3140 under the provisions
Copper alloy JIS H 3100 under the provisions
Aluminum or
Aluminum alloy
JIS H 4000 and JIS H 4100 Positive
Shall be defined
8.2 Insulator
a) an insulator covering the conductor of the bus duct insulated conductor the insulation out of accept able temperature limits, the normal use in tub
To withstand the rated short t ime withst and current and thermal conduction file. Limits of the permissible temperature of the insulation
manufacturingSpecified by the. Example of an insulator covering the conductor, table 7 shows. Insulator, the same type in different
In those with acceptable temperature limits.
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Table 7 - Example of an insulator covering the conductor
Ty pe of insulator Tensile Strength
MPa
Growth
%
Breakdown strength
kV / mm
Th ere is a heat-resistant vinyl
Th ere is a heat-resistant cross-linked polyethylene
Silicon rubber
Polyester
Polypropylene
Polycarbonate
Epoxy
Fluorine Resin
Mica
Cross-linked polyethylene
Butyl rubber
Over 9.8
Over 9.8
Over 3.9
Over 147.0
Over 29.4
Over 54.9
Over 17.6
Over 9.8
Over 29.4
Over 9.8
Over 3.9
Over 120
More than 350
More than 200
60
More than 250
60
-
More than 250
-
More than 350
300 +
More than 30
40
More than 20
60
More than 30
Over 14
At least 12
At least 16
8 or more
40
More than 25
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EP rubber
Chloroprene
Polyethylene
Sty rene-butadiene rubber
Vinyl
Over 3.9
Over 5.9
Over 9.8
Over 4.9
Over 9.8
300 +
More than 250
More than 350
300 +
More than 100
More than 25
More than 20
More than 20
More than 30
More than 30
Test method for t ensile strength and elongation, three thousand and five JIS C by. However, polyester, polypropylene
Applications, polycarbonate and epoxy , JIS K 7 113 by.
How to test the strength of t he dielectric breakdown, JIS C 2 110 by.
b) The thickness of the insulation covering the conductor of t he bus duct insulated conductors shall be not less t han 0.5 mm. However, the following
If you meet any of the conditions of isolation may be more than 0.38 mm thickness as that.
1) Flammability, electrical resistance, dimensional stability, tensile st rength, elongation, weather resistance, tear resist ance, p ermeability, abrasion
and consider If it is determined to be applicable and considered.
2) covered with metal foil coated with an insulating material around the conductor (foil) in between, the AC power frequency of 50 Hz or 60 Hz
5 000 V for one minute when you add pressure, if it endured.
c) Insulator sup port ing the conductor of the bus duct bare conductors, fire retardant insulation material in heat resistance and moisture resist ance
good mechanicalShall be used having the strength.
8.3 Outer case of the app aratus for connecting a branch duct and
a) the thickness of the material and equipment used on the box for connecting a branch duct and the force app lied to the normal conditions of use in
To bear.
b) material used for the duct to withstand mechanical stress and rated short time withstand current horizontal forces due to the strength test without
exampleShould be.
c) Ducts used in the refractory material of the bus duct, must withstand a fire resistance test.
d) synthetic resin can be used for branch connections on the box of the inst rument. Equipment used out of the box and for branch duct connections
Example of the material, table 8 shows.
Table 8 - Example of materials used for the outer case of the app aratus for connecting a branch duct and
Type Standard
Steel JIS G 3131 to the provisions
Aluminum or
Aluminum alloy
H 4,000 JIS -A1200P A1100P prescribed or H14-H14
Four thousa nd one h undred JIS H -A1200S A1100S prescribed or H112-H112
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Table 8 Example of the thickness of the duct when using a reference example of the materials shown in table 9 shows.
Table 9 - Example of the t hickness of the duct
In mm
T he max imum widt h o f t he duct cro ss sect io n St eel A aluminum o r
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Aluminum alloy150 1.0 (1.6) 1.6
Less than 300 over 150 1.4 (1.6) 2.0
500 or less than 300 2.5
700 less than 5001.6 (1.6)
3.0
More than 700 2.0 (2.0) 4.0
The number in parentheses is applied to the bus duct fire.
Table 8 for the branch connecting hardware when using a synthetic resin material and the reference example shown in the Example of the thicknesof the outer case of the table 10
Shown.
Table 10 - Example of the t hickness of the outer case of the appliance for branch connections
The maximum surface area of one side of the outer box
cmTwo
Steel
mm
Aluminum or
Aluminum alloy
mm
Plastics
mm
Below 500 0.8 2.0
Less than 1 000 500 1.0
Less than 1 000 2 000 1.2 -
More than 2 000 1.6
2.0
Nine Test method
9.1 General requirements
The test, JIS Z 8 703 at room temperature as defined in (20 ± 15) and humidity [relative humidity (65 ± 20)%] of ventilation, the temperature
Where it made no significant impact on the results of other test s should be.
9.2 Structural test
Clause 7 and Clause 8 for verifying the requirements p rescribed.
9.3 Temperature rise test
Temperature rise test is carried out by the next.
a) the form of bus duct temperature rise test , connect two or more of the same rated straight, more than 6 m length
Placed horizontally t o a height of 300 mm above the floor to close the ends, and then rated current t hrough the exposure to wind
The same figure two conductor bus duct and duct of the conductors and ducts and connections shown in the temperature, the temperature of th
partsMeasured using a thermocouple fixed and when. However, if the bus duct is insulated conductors, bus duct
Conductor t emperature measurement is made.
Note: When a constant temperature and refers to the state falls below 1 K temperature change per hour.
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C 8364:2008
In mm
Figure 2 - Temperature measurement point
b) when the temperature rise test instruments and p lug-ins combined with temperature rise test inst rument plug-in bus duct
Is attached to the bus duct plug-in to use state equipment, the rated current to the bus duct, the plug-in
The instrument was built through the current rating of the equipment, the temperature of the conductor branches of each thermocouple to be
constant when the temperature of the partsMeasured using a pair. However, if the circuit breaker built-in equipment, if the circuit breaker during the test , the barrier
Test, such as by connecting the power supply and load side without a breaker.
c) Measurement of ambient temperature in the ambient temperature test, at a distance of about 1 m from one side of the duct along the length of t
almost
In the center, and center position and the height of the bus duct.
d) To reduce the test time may be over-current through the early stages.
9.4 Insulation resistance test
Insulation resistance test, JIS C 1,302 for a 500 V DC insulation resistance meter as defined in, and between live parts and non-charge for each po
Measure the insulation resistance between the metal parts.
9.5 Power Frequency withstand voltage test
Commercial frequency withstand voltage test , the non-carrying metal parts and between live parts and between each pole and with frequency of 5
Hz or 60 Hz , Table11 in the form of testing AC voltage shown in 1 minute in 1 second is applied to the delivery test.
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Table 11 - test voltage bus duct
V Unit
Rated voltage U i
(The line).
Test voltage
AC rms
300 2 000
600 2 500
750a)
3 000
1 000 3 500
1 500a)
3 500
Not ea)
To apply only to DC.
Control circuits and auxiliary circuits, such as equipment for t he branch connection, if it is not directly connected to the electrical bus duct and the
Table 12 shows a test by test voltage. However, the table 12 is inappropriate electronic components tested in the test voltage
If you have any, may be tested to exclude them.
Table 12 - test voltage control circuits and auxiliary circuits, such as appliances for branch connections
V Unit
Rated voltage U i
(Th e line).
Test voltage
AC rms
T han 12 250
More than 12 to 60 500
More than 60T wo U i+1 000
However, with a minimum of 1 500.
9.6 Rated short time withstand current test
Connect two or more feeder bus duct at least 2 m, after a short end, mark a 50 Hz or 60 Hz AC voltage
Be added.
Rated short time withstand current conduction, the second or 0.1 seconds with either one of t he following test conditions, And the effective value
AC componentSpecify the time and power, perform the test.
a) a power-on time 1 seconds of rated short t ime withst and current is the rms value of AC component (rms), and the maximum peak value that is
Table 13 shows the effective value of n times or less.
Table 13 - Coefficient n of the standard value
Rated short time withstand current rmsPower factor n
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kA
: 5
More than 5 to 10
20 over 10
More than 20 to 50
More than 50
0.7
0.5
0.3
0.25
0.2
1.5
1.7
T wo
2.1
2.2
b) a power-on time 0.1 seconds of rated short t ime withst and current draws the maximum envelope of the AC component, from a short circuit occur
1 / full amplitude after 1 / 2 cycle (2 √ Two) And as of t he effective value of the AC component, p ower factor, the table 14 to indicate to.
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Table 14 - Rated short time withstand current power factor
Rated short time withstand current
ALagging power facto r
5 000, 7 500 0.4
10 000 14 000 0.3
18 000, 22 000 0.25
25 000, 30 000,
35 000, 42 000
50 000, 60 000,
65 000, 75 000,
85 000, 90 000,
100 000 125 000
150 000 200 000
0.2
c) Plug-in bus duct, one while wearing the appliance plug, perform the test .
d) RMS value of AC component in the three-phase test circuit, and the average of the effective value of the AC component of each phase.
e) For three-phase three-wire bus duct is tested in three-phase circuit, three-phase four-wire bus duct for three-phase circuit
In addition to t esting, to test t he single-phase circuits between adjacent conductors and the neutral conductor.
Rated short time withstand current is the amount of electrical subst ation equipment, etc. are determined by the receiving syst em. The single
transformer Rated short time withstand current examples of the standard when the feed table 15 shows.
Table 15 - Example of the rated short time withstand current
Current rating of t he bus duct
A
Rated short time withstand current
A
Lagging power facto r
60 5 000
100 7 500
0.4
200 14 000 0.3
300 18 000
400
600
80022 000
0.25
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1 000
1 200
1 500
1 600
42 000
2 000
2 500
3 000
3 500
60 000
4 000
4 500
5 000
5 500
6 000
90 000
0.2
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9.7 Horizontal strength test
Horizontal strength test, Figure 3 is connected with two st raight 3 m in length, t hat in 150 at 3 m wide and the center of the connections between
mm, placed on a fulcrum length of two dimensional channel steel exceeds t he width of the bus duct in addition, of the bus duct connection
Place the same materials used in the fulcrum on for five minutes put a weight equivalent to 4 m the mass of the bus duct minutes
File.
As for the more than 600 A rated current, put the weight corresponding to the mass of 60 kg more.
In mm
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Figure 3 - Horizontal strength test
9.8 Vertical strength test
The vertical strength test , using the condition one attached to a vertical bus duct shall be facility, the conductor of bus duct
At the same time to hanging for 2 minutes each conductor corresponding to the mass of the body weight of 5-Phase 1 (Figure 4 reference).
Figure 4 - vertical strength t est
9.9 Impact test
Impact t est, for the outer case of the connecting hardware for straight and branched synthetic resin, made by the next.
a) test, the figure 5 performed using the apparatus shown in the test apparatus according thereto. Test equipment, when not compressed thickness
At 40 ± 1 mm difference, 450 kg / m densityThree
~ 550 kg / mThree
Sponge placed on the rug of ethy lene-propy lene rubber
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C 8364:2008
Sure.
In mm
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Figure 5 - Impact Test Equipment
b) hammer to fall to the next position, p lace the specimen, the vertical nature once the hammer from a height of each of the provisions
Is drop ped. Hammer mass and the height of t he table 16 shows.
1) The impact force is applied to the top and sides of the bus straight duct (Figure 6 references.)
Figure 6 - Impact surface
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2) seems to be the weakest point of t he outer case made of synt hetic resin equipment for branch connections (excluding the knockout.) t wo p lace
whereSelected, the impact force.
Table 16 - Impact test values
ClassificationMass of t he hammer
kg
Drop height
mm
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Bus duct 6.8 300 ± 1
Equipment for the branch connecting th e outer case of the synt hetic resin2.0 100 ± 1
9.10 degree of protection for water tests for outdoor bus duct
Degree of protection for water tests for outdoor bus duct, connecting two or more of the outdoor bus duct, 300 mm from the floor
Placed horizontally on a height above, carried by the following.
a) Protection Class II property number 3 bus duct having a second characteristic prop erties of the number 3 bus duct with a p erformance degree of
prot ection
Examination of the degree of protection against water, JIS C 0,920 in 14.2.3 [3 digit second characteristic degree of p rotection (to p rotect againwater sprayRu) performed by the method prescribed in.
b) The second characteristic numerals prot ection class 4 four-digit bus duct characterist ics with the characteristics of t he degree of prot ection with th
performance of the bus ductExamination of the degree of protection against water, JIS C 0,920 in 14.2.4 [4 digit second characteristic degree of prot ection (protection agai
water splashesTo protect) performed by the method prescribed in.
9.11 The bus duct fire test fire
The bus duct fire test fire is carried out by the next.
a) heating furnace heating furnace, and then use one to meet.
1) The st ructure in Figure 7 or it must be structured according to the structure shown.
2) The effective length of the furnace must be at least 2 m.
3) The furnace is heated by t he state if not insert the sp ecimen at least 30 minutes to maintain the temperature of 840 ± 84
Must be able.
In mm
Figure 7 - Example of specimen placed
b) placement of the specimen
1) The test bus duct is about 500 mm of length on each side leaving the furnace wall from the exterior, the junction in its center
Not have to shield at both ends of the insulation materials.
2) The horizontal support of the bus duct test interval, the more than 1 m, placed at the center between the supporting connections.
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3) The temperature in the furnace, JIS C 1,602 with the performance of the thermocouple wire diameter of 0.75 or higher grade in the K-wire ty p
of sy mbols defined inUse automatic recorder using a figure eight to measure the temperature at the position shown.
In mm
Figure 8 - Temperature measurement location
c) Heating test, the specimen is inserted into the furnace, carried by the following.
1) before heating, after addition of 1 500 V for 1 minute or 60 Hz alternating voltage of 50 Hz, non-metal charge gap and charge for each unit
Measure the insulation resistance between the parts.
2) Then, JIS A 1 304 according to the p rescribed st andard curve and heated for 30 minutes.
3) during heating, adding an AC voltage of 600 V 50 Hz or 60 Hz and continuously t est bus duct.
4) before the end of the heating to st op the 600 V alternating voltage is applied, the insulation between live parts and metal parts and between eac
pole and the non-To measure resistance.
5) After completion of heating, 1 500 V 50 Hz or 60 Hz AC voltage between the frequency of non-metal parts and between live parts of each pol
Add 1 minute.
9.12 and the heat cycle test plug-in removable appliances
The test is carried out by the following.
a) Before performing the test t emperature rise at rated current p lug-load equipment, Table 17 and Figure 9 or removing.
Table 17 - Number of fixtures removable plug-in
Rated current I n
ARemovable times
T o 63 25
T han 63 200 T en
More than 200 Five
Figure 9 - removable plug-in appliances
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b) rated current through the appliance plug and then, when t he value of the constant temperature of t he bifurcation using a thermocouple conductor
Measured. After measuring the temperature, the current is interrupt ed, the specimen back to room temperature.
c) Then, the next heat cycle test.
The power is first measured the temperature rise to 2 hours after the start of energization of differences in temperature rise, the next
Of 1) or 2) conduct tests .
1) that the temperature rise b) compared with the measured temperature rise in, if less than 5 K, 2 h rated current through
The electricity, the current interruption for 2 hours.
2) that the temperature rise b) compared to the temperature rise was measured at 5 K greater than the rated current for 3 hours
Energized, the current interruption for 3 hours to do.
Measuring the temperature at the end of the cycle when power after 84 and after 42 cycles.
9.13 Test equipment connections for t he branch opening and closing operation mechanism with the handle or cover
For equipment for the branch connecting with the handle or cover operating mechanism, in通Jinai current line of action open to 1 000 times
Window.
The "open" and "closed" once have counted as actions, and its speed is about 10 t imes p er minute.
9.14 Performance Test耐過ignition resistance of the insulator and thermal performance
Resistance and ignition performance test of the thermal performance of insulation耐過 bus duct is used for,JIS C 60695-2-10
andJIS C
60695-2-11 , according to the test.
According to t he usages of the insulation, the table 18 to 30 seconds pushing the temperatures shown in the glow-wire, observe the following:
Record.
a) Since I started pushing the edges, tissue wrapp ing is fired instantaneous p osition of 200 mm was placed beneath t he specimen or
Between time.
b) Since I started pushing the edges, while pushing or after, the time until the flame is gone the moment
c) The maximum height of any flame. However, at the start of combustion because it can generate a high flame, after the start of combustion of about
Second is not considered.
d) Most of the material that is burning, you pass the test specimen to be removed and attached to the glow-wire .
This will be specified in the test report.
e) recording the burning of tissue placed in packaging of 200 mm below the specimen position.
Table 18 - glow-wire temperature
Usages of the insulator T emperature
Covering the conductor or insulator
To fix the con ductor insulator 960 ± 15
Other external parts made of insulating material 650 ± 15
9.15 Inspection and testing electrical wiring work
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a) mechanical interlocking mechanism and external operations, such as equipment for the branch connection device to check the operation.
b) Inspection and electrical wiring of an integrated circuit devices such as auxiliary equipment for the branch connection and to check the operation.
10 Inspection
10.1 format checks
Inspection form, remove the sp ecimen from a representative of each product, p erform the following inspection items. a) ~ D) is the same test
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For test items, made by order. For other tests may be performed in different products.
a) Structure
b) temperature rise
c) Insulation resistance
d) Power Frequency withstand voltage
e) Rated short time withstand current
f) horizontal intensity
g) Vertical intensity
h) Impact strength
i) Degree of protection against water for outdoor bus duct
j) Fire Resistance of bus duct fire
k) and heat cycle performance plug-in removable appliances
l) Switching equipment for connecting the branch with a knob or cover operating mechanism
m) and resistance to ignition p erformance of the thermal performance of insulation耐過
10.2 Delivery Inspection
Acceptance inspection is performed the following test items for each product. The order of these tests are optional.
a) inspect the wiring and electrical behavior
b) Insulation resistance
c) Power frequency withst and voltage
11 I called the product
I called the p roduct name, the material of the conductors and ducts, format, number of p oles, rated voltage, rated current and rated short time
withstandCurrents.
Feeder bus duct eg, aluminum, steel, indoor, insulated conductor, form a non-ventilated p ole, 4, 600 V, 1 500 A,
60 000 A
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12 View
Conspicuous place of the product in a manner easily disappear, showing the name plate must be fitted with the following items.
a) bus duct, at least, to appear in the arterial system of the bus duct in one place.
1) The number and name of the p roduct st andards
2) The abbreviations of the duct or conductor and material
3) Format
4) The number of poles
5) Rated Voltage
6) Rated current
7) Rated short time withstand current
8) manufacturer's name
9) Date of manufacture
10) serial number
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b) feed-box connectivity for branch and fixtures
1) The name of the device product name or number, and internal standards
2) The number of poles
3) Rated voltage (if applicable)
4) Rated current (if applicable)
5) Rated short time withstand current (if applicable)
6) The manufacturer's name
7) Date of manufacture
8) serial number
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References JIS G 3131 hot rolled mild st eel plate and steel
JIS H 3100 Copper and copper alloy sheet and conditions
JIS H 3140 Copper busbars
JIS H 4000 Aluminium and aluminum alloy sheet and conditions
JIS H 4100 extruded shapes in aluminum and aluminum alloys
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