Some standard content:
ICS 29.120.40
K31
People's Republic of China Machinery Industry Standard JB/T 5554—2004
replaces IB/T5554-1991
machine tool combination switch||tt| |Switchgroup for machine tools released on 2004-03-12
Implemented on 2004-08-01
The National Development and Reform Commission of the People's Republic of China released JB/T 5554—2004
Foreword,|| tt||1
Scope,
Normative reference documents,
2
Terms and definitions
3
Classification||tt ||4
4.1 According to purpose.
4.2
According to the number of poles..
4.3
According to the color of the operating parts
4.4 According to the installation method
5 Features.|| tt||5.1
5.2
5.3
5.4
5.5
rated voltage
current,
operating frequency| |tt||Rated working system,
Usage category
5.6 Overall dimensions and installation ruler
6 Normal working conditions and installation conditions
6.1
Normal Working conditions,
Installation,
6.2
7 Structural and performance requirements
7.1 Structural requirements,
7.2
8||tt ||Performance requirements
Test methods,
8.1
8.2
Verify structural requirements
Verify performance requirements,
Inspection rules|| tt||9
9.1
9.2
9.3
Inspection and test classification
Type test
Dehiro test||tt| |+-.
-*+++-+++++
Marking, packaging, transportation and storage
10
10.1
10.2
10.3
Table
Logo
Packaging,
Transportation and storage.
Minimum electrical clearance
Table 2| |tt||Minimum creepage distance
Table 3
Table 4
Table 5
Temperature rise limit,
Test voltage for power frequency withstand voltage Value,
+
++++++.++.+-
times
++++++++++
---.+t+++
+---...*....++-+.++中
+..--..+.-.--.
+++++++--+--+++++++++.
通+国
++++++++-+ +++++.++.
+
Conditions corresponding to the rated making and breaking capacities for several categories of use++
+
E-mail ·
.........+......
deddl+:
+++++++
o||tt ||t+-.-+..+.
Table 6 Electrical Life Test Conditions
Table? On-off operating performance test conditions
Table 8 Temperature at the top of the glow wire and duration of the glow wire applied to the test sample 9 Test procedures
Heart
JB/T 5554--2004
..-.....-.
...+..........
.8
H||tt ||-
JB/T 5554--2004
Previous
This standard is recommended based on GB/T14048.1-2000 "General Principles of Low-Voltage Switchgear and Control Equipment" and GB14048. 3-2002 "Low-voltage switchgear and control equipment Part 3: Switches, isolators, isolating switches and fuse combination appliances", a revision of JB/T5554--1991 "Combined Switches", and in accordance with GB/T1.1- The relevant provisions of the 2000 "Standardization Work Guidelines Part 1: Standard Structure and Writing Rules" have been revised.
Compared with JB/T5554--1991, the main changes in this standard are as follows: 1. The classification of switches is refined; 1. The number of electrical lifespans is determined according to the different number of mechanical lifespans. The corresponding ratio is determined: -Added relevant content in compliance with GB5226.1-2002: a) The protection level that a cut-off switch should have: b) The switch should be able to meet the stall current requirements of the motor under the corresponding use category. This standard replaces JB/T55541991.
This standard is proposed and managed by Chengdu Machine Tool and Electrical Equipment Research Institute. This standard was drafted by: Beijing Machine Tool Electric Co., Ltd. The main drafters of this standard: Zhang Yutang, Zhu Junxian, and Li Chunlin. The previous versions of the standards replaced by this standard are: JB/T 5554-1991.
HII
1 Scope
Machine tool combination switch
: This standard specifies the type, characteristics, technical requirements, test methods and inspection rules of the combination switch. JB/T 5554-2004
This standard is suitable for making or breaking circuits, switching circuits, and motors in circuits with AC 50Hz~60Hz, rated voltage up to 660V or DC voltage up to 660V, and rated current up to 100A. Combination switch for starting, switching, stopping and shifting (hereinafter referred to as the switch). The combination switches specified in this standard are suitable for metal cutting machine tools, as well as various industrial machinery such as food machinery, plastic and rubber machinery, printing machinery and woodworking machinery, packaging machinery, and assembly machinery. 2 Normative reference documents
The provisions in the following documents become provisions of this standard through reference in this standard. For dated reference documents, all subsequent amendments (excluding corrigenda) or revisions do not apply to this standard. However, parties to an agreement based on this standard are encouraged to study whether the latest versions of these documents can be used. Version. For undated referenced documents, the latest edition applies to this standard. GB/T2423.1--2001 Environmental Testing of Electrical and Electronic Products Part 2: Test Method Test A: Low Temperature (idtIEC60068-2-1: 1990)
GB/T2423.4--1993 Basic Environment of Electrical and Electronic Products Test procedure test Db: Alternating damp heat test method (egvIEC60068-2-30:1980)
GB/T2828 Batch-by-batch inspection and counting sampling procedure and sampling table (applicable to inspection of continuous batches) GB/T2900.18— 1992 Electrical terminology for low-voltage electrical appliances (eqYEC60050-441:1984) GB/T4207 Method for determination of tracking index and tracking resistance index of solid insulating materials under humid conditions GB/T4207--1984. (neq IEC 60112:1979 ) GB/T4942.2--1993 Protection level of low-voltage electrical enclosures (eqvIEC60947-1: 1988) GB/T5169.10--1997 Fire hazard test test methods for electrical and electronic products General principles for glow wire test methods (idtEC60695-2-1/01994 )
GB/T5169.11--1997 Fire hazard test test methods for electrical and electronic products - Glow wire test and guidelines for finished products (idtIEC60695-2-1/1: 1994)
GB5226.1- -2002 Machinery Safety Machinery and Electrical Equipment Part 1: General Technical Conditions (IEC60204-1: 2000, IDT) GB/T14048.1-2000 Low Voltage Switchgear and Control Equipment General Principles (eqvEC60947-1: 1999) GB14048.3-2002 Low Voltage Switchgear and control equipment Part 3: Switches, isolators, isolating switches and fuse combinations (IEC60947-3: 2001, IDT) 3 terms and definitions
GB/T14048.1--2000, GB14048. The terms and definitions, symbols and codes established in 3--2002 and GB/T2900.18-1992 are applicable to this standard.
4 categories
4.1 According to use
switches can be divided into:
a) Power on-off switch:
b) Two kinds of power conversion switch:
JB/T 5554- -2004
c) AC and DC motor control switch;
d) General isolating switch.
4.2 According to the number of poles
Switches can be divided into according to the number of poles:
a) Two-pole switch:
b) Three-pole switch:
c ) Four-pole switch:
d) Multi-pole parallel switch.
4.3 According to the color of the operating parts
Switches can be divided into:
a) black, gray: general-purpose switches; b) red\): emergency stop switch, direct On/off motor switch; c) Others.
4.4 According to the installation method
According to the installation method, the switch can be divided into:
a) Installation in front of the board:
b) Installation behind the board:
c) other.
5 Characteristics
5.1 Rated voltage
Rated voltage can be divided into:
a) Rated insulation voltage (Ui):
b) Rated working voltage (U.).
5.2 Current
Current can be divided into:
a) Agreed free air heating current (In): b) Agreed closed heating current (lte): c) Rated operating current (l ).
5.3 Operating frequency
According to the provisions of 4.3.4.3 in GB/T14048.1-2000, the details are determined by product standards. 5.4 Rated working system
Rated working system can be divided into:
a) Uninterrupted working system:
b) Eight-hour working system;
c) Intermittent period work system.
The load factor is in accordance with the provisions of 4.3.4.3 in GB/T14048.1-2000, and is determined by the product standard. 5.5 Usage categories
Usage categories can be divided into:
a) Communication: AC—21, AC—22, AC—23. AC—3, AC—4:b) DC: DC—21, DC—22, DC—23. DC—3. DC—5.1) If there is a background color behind the operating part, it is recommended to use yellow. 2
5.6 Overall dimensions and installation dimensions
The overall dimensions and installation dimensions of the switch should comply with the specific product standards. Normal working conditions and installation conditions
6.1 Normal working conditions
6.1.1 Ambient air temperature
According to the provisions of 6.1.1 in GB/T14048.1-2000. 6.1.2 Altitude
According to the provisions of 6.1.2 in GB/T14048.1-2000. 6.1.3 Atmospheric conditions
6.1.3.1 Humidity
According to the provisions of 6.1.3.1 in GB/T14048.1-2000. 6.1.3.2 Pollution level
Unless otherwise specified in the product standard, this standard stipulates that the pollution level is Level 3. 6.2 Installation
6.2.1 Installation conditions
JB/T 5554--2004
Normal installation conditions should be based on the manufacturer's installation instructions. The installation orientation is specified or the electrical performance is affected by the installation. For switches that are significantly affected by conditions, the installation conditions should be clearly specified in the specific product standards. 6.2.2 Installation category
The installation category of the switch is Category II or Category II. 7 Structural and performance requirements
7.1 Structural requirements
7.1.1 Materials
According to the provisions of 7.1.1 in GB/T14048.1-2000. 7.1.2 Electrical room and creepage distance
7.1.2.1 Electrical clearance
The minimum electrical clearance of the switch determined according to pollution level 3 and installation category I, II and phase-to-ground voltage is shown in the table 1. Table 1 Minimum electrical clearance
Phase-to-ground voltage value (AC effective value or DC value) determined by the rated voltage of the power system y
50
>50~100
>100～150
>150~~300
>300～600
>600 ~~1000
7.1.2.2 Creepage distance
0.8
0.8
0.8
1.5
3.0
5.5
Electric Lifting Gas Cable
Source||tt| |mm
Installation class
different
[
0.8
0.8
1.5
3.0
5.5
8.0
The minimum creepage distance specified by the rated insulation voltage, pollution level 3 and insulation material group of the switch is shown in Table 2. The comparative tracking index (CTI) of insulating materials is divided into the following four groups: a) Insulating material group 1: 600 ≤ CTI: JB/T 5554—2004
b) Insulating material group II : 400≤CTI<600: c) Insulating material group IIa: 175≤CT<400; d) Insulating material group IHb: 100≤CTI<175. Yuan 2 minimum creepage distance
rated insulation voltage or actual working voltage
(AC effective value or DC value)
V
50
125( 127)www.bzxz.net
250
400
500
630(690)
7.1.3 Terminal block
According to GB/T14048.1 —-The provisions of 7.1.7 in 2000. 1
1.5
1.9
3.2
5.0
6.3
8.0
7.1.4 The metal shell of the switch should Protective terminal block creepage distance
mm
Material group
1.7
2.1
3.6
5.6||tt ||7.1
9.0
a, b
1.9
2.4
4.0
6.3
8.0||tt ||10.0 |
7.1.4.2 The protective grounding terminal shall have a clear and permanent grounding identification mark. 7.1.4.3 The minimum size of the grounding screw should not be less than the following provisions: a) Ith ≤ 20A, M4;
b) 20A3, the details are determined by product standards. 5.5 Usage categories
Usage categories can be divided into:
a) AC: AC—21, AC--22, AC--23. AC--3 , AC—4:b) DC: DC—21, DC—22, DC—23. DC—3. DC—5.1) If there is a background color behind the operating parts, it is recommended to use yellow, 2
5.6 Overall dimensions and installation dimensions
The overall dimensions and installation dimensions of the switch should comply with specific product standards. Normal working conditions and installation conditions
6.1 Normal working conditions
6.1.1 Ambient air temperature
According to the provisions of 6.1.1 in GB/T14048.1-2000. 6.1.2 Altitude
According to the provisions of 6.1.2 in GB/T14048.1-2000. 6.1.3 Atmospheric conditions
6.1.3.1 Humidity
According to the provisions of 6.1.3.1 in GB/T14048.1-2000. 6.1.3.2 Pollution level
Unless otherwise specified in the product standard, this standard stipulates that the pollution level is Level 3. 6.2 Installation
6.2.1 Installation conditions
JB/T 5554--2004
Normal installation conditions should be based on the manufacturer's installation instructions. The installation orientation is specified or the electrical performance is affected by the installation. For switches that are significantly affected by conditions, the installation conditions should be clearly specified in the specific product standards. 6.2.2 Installation category
The installation category of the switch is Category II or Category II. 7 Structural and performance requirements
7.1 Structural requirements
7.1.1 Materials
According to the provisions of 7.1.1 in GB/T14048.1-2000. 7.1.2 Electrical room and creepage distance
7.1.2.1 Electrical clearance
The minimum electrical clearance determined by the switch according to pollution level 3 and installation category I, II and phase-to-ground voltage is shown in the table 1. Table 1 Minimum electrical clearance
Phase-to-ground voltage value (AC effective value or DC value) determined by the rated voltage of the power system y
50
>50~100
>100～150
>150~~300
>300～600
>600 ~~1000
7.1.2.2 Creepage distance
0.8
0.8
0.8
1.5
3.0
5.5
Electric Lifting Gas Cable
Source||tt| |mm
Installation class
different
[
0.8
0.8
1.5
3.0
5.5
8.0
The minimum creepage distance specified by the rated insulation voltage, pollution level 3 and insulation material group of the switch is shown in Table 2. The comparative tracking index (CTI) of insulating materials is divided into the following four groups: a) Insulating material group 1: 600 ≤ CTI: JB/T 5554—2004
b) Insulating material group II : 400≤CTI<600: c) Insulating material group IIa: 175≤CT<400; d) Insulating material group IHb: 100≤CTI<175. Yuan 2 minimum creepage distance
rated insulation voltage or actual working voltage
(AC effective value or DC value)
V
50
125( 127)
250
400
500
630(690)
7.1.3 Terminal block
According to GB/T14048.1 —-The provisions of 7.1.7 in 2000. 1
1.5
1.9
3.2
5.0
6.3
8.0
7.1.4 The metal shell of the switch should Protective terminal block creepage distance
mm
Material group
1.7
2.1
3.6
5.6||tt ||7.1
9.0
a, b
1.9
2.4
4.0
6.3
8.0||tt || 10.0 |
7.1.4.2 The protective grounding terminal shall have a clear and permanent grounding identification mark. 7.1.4.3 The minimum size of the grounding screw should not be less than the following provisions: a) Ith≤20A, M4;
b) 20A3, the details are determined by product standards. 5.5 Usage categories
Usage categories can be divided into:
a) AC: AC—21, AC--22, AC--23. AC--3 , AC—4:b) DC: DC—21, DC—22, DC—23. DC—3. DC—5.1) If there is a background color behind the operating parts, it is recommended to use yellow, 2
5.6 Overall dimensions and installation dimensions
The overall dimensions and installation dimensions of the switch should comply with specific product standards. Normal working conditions and installation conditions
6.1 Normal working conditions
6.1.1 Ambient air temperature
According to the provisions of 6.1.1 in GB/T14048.1-2000. 6.1.2 Altitude
According to the provisions of 6.1.2 in GB/T14048.1-2000. 6.1.3 Atmospheric conditions
6.1.3.1 Humidity
According to the provisions of 6.1.3.1 in GB/T14048.1-2000. 6.1.3.2 Pollution level
Unless otherwise specified in the product standard, this standard stipulates that the pollution level is Level 3. 6.2 Installation
6.2.1 Installation conditions
JB/T 5554--2004
Normal installation conditions should be based on the manufacturer's installation instructions. The installation orientation is specified or the electrical performance is affected by the installation. For switches that are significantly affected by conditions, the installation conditions should be clearly specified in the specific product standards. 6.2.2 Installation category
The installation category of the switch is Category II or Category II. 7 Structural and performance requirements
7.1 Structural requirements
7.1.1 Materials
According to the provisions of 7.1.1 in GB/T14048.1-2000. 7.1.2 Electrical room and creepage distance
7.1.2.1 Electrical clearance
The minimum electrical clearance determined by the switch according to pollution level 3 and installation category I, II and phase-to-ground voltage is shown in the table 1. Table 1 Minimum electrical clearance
Phase-to-ground voltage value (AC effective value or DC value) determined by the rated voltage of the power system y
50
>50~100
>100～150
>150~~300
>300～600
>600 ~~1000
7.1.2.2 Creepage distance
0.8
0.8
0.8
1.5
3.0
5.5
Electric Lifting Gas Cable
Source||tt| |mm
Installation class
different
[
0.8
0.8
1.5
3.0
5.5
8.0
The minimum creepage distance specified by the rated insulation voltage, pollution level 3 and insulation material group of the switch is shown in Table 2. The comparative tracking index (CTI) of insulating materials is divided into the following four groups: a) Insulating material group 1: 600 ≤ CTI: JB/T 5554—2004
b) Insulating material group II : 400≤CTI<600: c) Insulating material group IIa: 175≤CT<400; d) Insulating material group IHb: 100≤CTI<175. Yuan 2 minimum creepage distance
rated insulation voltage or actual working voltage
(AC effective value or DC value)
V
50
125( 127)
250
400
500
630(690)
7.1.3 Terminal block
According to GB/T14048.1 —-The provisions of 7.1.7 in 2000. 1
1.5
1.9
3.2
5.0
6.3
8.0
7.1.4 The metal shell of the switch should Protective terminal block creepage distance
mm
Material group
1.7
2.1
3.6
5.6||tt ||7.1
9.0
a, b
1.9
2.4
4.0
6.3
8.0||tt ||10.0 |
7.1.4.2 The protective grounding terminal shall have a clear and permanent grounding identification mark. 7.1.4.3 The minimum size of the grounding screw should not be less than the following provisions: a) Ith ≤ 20A, M4;
b) 20A0
The minimum creepage distance specified by the rated insulation voltage, pollution level 3 and insulation material group of the switch is shown in Table 2. The comparative tracking index (CTI) of insulating materials is divided into the following four groups: a) Insulating material group 1: 600 ≤ CTI: JB/T 5554—2004
b) Insulating material group II : 400≤CTI<600: c) Insulating material group IIa: 175≤CT<400; d) Insulating material group IHb: 100≤CTI<175. Yuan 2 minimum creepage distance
rated insulation voltage or actual working voltage
(AC effective value or DC value)
V
50
125( 127)
250
400
500
630(690)
7.1.3 Terminal block
According to GB/T14048.1 —-The provisions of 7.1.7 in 2000. 1
1.5
1.9
3.2
5.0
6.3
8.0
7.1.4 The metal shell of the switch should Protective terminal block creepage distance
mm
Material group
1.7
2.1
3.6
5.6||tt ||7.1
9.0
a, b
1.9
2.4
4.0
6.3
8.0||tt || 10.0 |
7.1.4.2 The protective grounding terminal shall have a clear and permanent grounding identification mark. 7.1.4.3 The minimum size of the grounding screw should not be less than the following provisions: a) Ith ≤ 20A, M4;
b) 20A0
The minimum creepage distance specified by the rated insulation voltage, pollution level 3 and insulation material group of the switch is shown in Table 2. The comparative tracking index (CTI) of insulating materials is divided into the following four groups: a) Insulating material group 1: 600 ≤ CTI: JB/T 5554—2004
b) Insulating material group II : 400≤CTI<600: c) Insulating material group IIa: 175≤CT<400; d) Insulating material group IHb: 100≤CTI<175. Yuan 2 minimum creepage distance
rated insulation voltage or actual working voltage
(AC effective value or DC value)
V
50
125( 127)
250
400
500
630(690)
7.1.3 Terminal block
According to GB/T14048.1 —-The provisions of 7.1.7 in 2000. 1
1.5
1.9
3.2
5.0
6.3
8.0
7.1.4 The metal shell of the switch should Protective terminal block creepage distance
mm
Material group
1.7
2.1
3.6
5.6||tt ||7.1
9.0
a, b
1.9
2.4
4.0
6.3
8.0||tt ||10.0 |
7.1.4.2 The protective grounding terminal shall have a clear and permanent grounding identification mark. 7.1.4.3 The minimum size of the grounding screw should not be less than the following provisions: a) Ith ≤ 20A, M4;
b) 20A60~300
>300~690
7.2.3 Rated making and breaking capacity
Table 3
Temperature rise limit
Table 4 Power frequency Test voltage value of withstand voltage
Temperature rise limit
70
65
60
30
40
40
50
15
25
JB/r 5554--2004
K
Power frequency withstand test voltage value (AC Effective value) 1000 | Condition table 5 for rated making and breaking capacity of each usage category
Use category
AC--21
AC——22
AC--23|| tt||AC--3
AC--4
DC-21
DC—22
DC—23
DC—3| |tt||DC-5
Usage category
AC—-3°
AC-4°
l
1.5
3
10 (on) 8 (off)
8
10
1.5
4
4
4
1
10
12
Uu
1.05
1.05
1.05
1.05|| tt||1.05
1.05
1.05
1.05
1.05
1.05
uU
1.05||tt| |1.05
on
off
cosp
0.95
0.65
0.45
0.45
0.45
To.gs ms
2.5
15
2.5
15
pick up
pass
cos p
0.45
0.45
Note: l. is the breaking current, U is the recovery voltage, and U is the voltage before connection. As long as the contacts are closed before opening again, the time can be less than 0.05s. b can be operated for 25 times in one polarity and then operated 25 times in the opposite polarity. Articles
pieces
Power-on time”s
0.05
0.05
0.05
0.05
0.05||tt| |0.05
0.05
0.05
0.05
0.05
bar
power-on time
0.05
0.05 | | tt | |tt||30
1o
10
30
30
30
10
10||tt ||Interval time
10
10
Number of operation cycles
5
5
5
so|| tt||50
5
5
5
Sob
so6
Number of operation cycles
50|| tt||50
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