JB/T 6205-1992 Experimental resistance furnace temperature controller JB/T6205-1992 standard download decompression password: www.bzxz.net

Mechanical Industry Standard of the People's Republic of China
JB/T6205-1991
Experimental resistance furnace temperature controller
Issued on June 16, 1992
Implementation by the Ministry of Machinery and Electronics Industry of the People's Republic of China on January 1, 1993
Mechanical Industry Standard of the People's Republic of China
Experimental resistance furnace temperature controller
1 Subject content and scope of application
JB/T6205-1991
Replaces JB2898-81
JB3118-82
This standard specifies the requirements for experimental resistance furnace temperature controllers (hereinafter referred to as temperature controllers) of the KSB, KSD, KSG, KSJ and KSY series, including product classification, technical performance, test methods, inspection rules, technical classification, ordering and supply, etc. This standard applies to the thermostats that are matched with the SX, SK and SG series of test-type, tubular and glass resistors. Reference standardsWww.bzxZ.net
GB2900
Electrical terminology (corresponding chapters)
GB10067.1General part of basic technical conditions for electric heating equipment
JB/Z146
GB4884
GB2681
GB4026
GB4025
JB4311.10
GB1094
GB4208
Painting process for electrical products
Marking of insulated wires
Wire colors in electrical complete sets
Identification and marking of electrical wiring terminals with alphanumeric symbols General rules for terminal blocks Colors of indicator lights and buttons
Indirect resistance furnace SX series experimental box-type resistance furnace SK series experimental tube-type resistance furnace
Indirect resistance furnace
Indirect resistance furnace
Power transformer
SG series experimental crucible-type resistance furnace
Classification of enclosure protection levels
Test methods for electric heating equipment
GB10066.1
ZBY002
Terms and terms
General part
Basic environmental conditions and test methods for transportation and storage of instruments and meters Except for the following supplementary provisions, the rest shall comply with the relevant provisions of each chapter of GB2900. Thyristor AC power switch
Thyristor AC power controller that controls on and off in a random or selective manner. 3.2 Thyristor AC power regulator
Thyristor AC power controller that controls power in a frequency manner. 3.3 Thyristor AC voltage regulator
Thyristor AC power controller that controls voltage in phase. Temperature control accuracy
The ability of the thermostat to control the temperature of the control point after it is connected to the test furnace specified in this standard and powered on to reach the maximum operating temperature of the test furnace. Product classification
Varieties and specifications
The thermostat is divided into five varieties and multiple specifications according to the maximum control power. The specific varieties, specifications and main technical parameters are shown in Table 1. Approved by the Ministry of Machinery and Electronics Industry on June 16, 1992 and implemented on January 1, 1993.
Product code
(KSB8)
(KSB12)
KSDD10
(KSD8)
(KSD12)
KSGD10
(KSG8)
(KSG12)
KSJD10
(KSJ8)
(KSJ12)
KSYD10
(KSY8)
(KSY12)
Maximum control power
Note: The varieties and specifications in brackets in the table are reserved products. JB/T6205-1991
Power supply voltage
220 or 380
220 or 380
Actuator
Transformer and contactor
Crystal tube AC ​​power switch
Pinchan tube AC ​​power regulator
Pin'a tube AC ​​voltage regulator
Control method
JB/T6205-1991
The model of the temperature controller shall be compiled in accordance with the following provisions, and the technical level code shall be in accordance with Article 7.3. KS
Enterprise code
Technical level
Maximum temperature, ℃
Maximum control power, kW
Single-phase power supply
Type or characteristic code
Experimental resistance furnace temperature controller
In the model, the type or characteristic code is represented by the letters B, D, G, J, and Y. Their meanings are as follows: B-indicates that the actuator is the on-off control of the transformer and AC contactor; D-
-indicates that the actuator is the on-off control of the thyristor AC power switch; G-indicates that the actuator is the on-off control of the thyristor AC power regulator; Y-indicates that the actuator is the continuous control of the thyristor AC voltage regulator. The maximum temperature is represented by dividing its value by 100 and removing the decimal. 4.3 Dimensions
The following dimensions (width×depth×height) are recommended for the thermostat: a.
336mm×335mmX240mm
420mmX370mmX250mm
500mmX450mm×250mm
560mm×325mm×1000mm
760mm×560mmX1000mm
Main parameters
In the enterprise product standards, the following items should be listed for each model of thermostat: a.
Power supply voltage, V;||t t||Power phase number:
Power frequency, Hz;
Maximum control power, kW;
Maximum output voltage, V;
Maximum output current, A;
Maximum temperature, ℃;
Temperature control accuracy, ℃;
Dimensions (width × depth × height), mm; Weight, kg·
Technical requirements
5.1 General requirements
JB/T6205-1991
Thermostats shall comply with the relevant provisions of Chapter 5 of GB10067.1. When there is a difference between the provisions of this standard and this standard, this standard shall prevail. 5.2 Supplementary requirements for design and manufacturing
5.2.1 Overall design
Thermostats can be boxed separately or integrated with the furnace. The thermostat is mainly composed of a box (table), a frame and various electrical components, devices and instruments. The design of the thermostat should ensure that the heat, arc, impact, vibration, magnetic field or electric field generated by the operation of each electrical component shall not affect each other's normal function. 5.2.2 Box (table) body
The thermostat is generally a separate box (table) body, or it can be connected to the furnace at the bottom or left or right side of the furnace as a whole. The door or top cover of the thermostat should have a hidden buckle or internal lock and can be flexibly rotated. Its opening angle shall not be less than 90°, and the electrical components and instruments should not be hit during the opening process.
The box (table) body should have a separate hole for the thermocouple lead-out wiring. 5.2.3 Installation
The various components, devices and instruments installed in the thermostat should be installed only after passing the inspection. During installation, sufficient disassembly and repair distance must be left according to the design requirements. Its contactors, instruments, etc. should be equipped with appropriate anti-vibration measures as needed (for example; add spring washers or appropriately thick rubber pads). The lead-out hole of the wire shall have an insulated lead-out ring. 5.2.4 Painting
The inner and outer surfaces of the thermostat shall be painted in accordance with the provisions of JB/Z146. The painting accuracy is Class I for the outer surface and Class V for the inner surface. The outer surface of the Class C thermostat shall be painted with baking varnish or epoxy powder spraying, etc. If there are special requirements (see Article 9.2), it can be agreed upon by the supply and demand parties. 5.2.5 Electrical system
5.2.5.1 Power supply
The power supply parameters of the thermostat shall be as specified in Table 1.
5.2.5.2 Wires
The connecting wires in the thermostat shall be connected straight and firmly, and the arrangement shall be neat and beautiful. The wire cross-section shall be selected according to the specified current carrying capacity. The single-core copper insulated wire shall generally not be less than 0.75mm, and the multi-core copper insulated soft wire shall generally not be less than 0.5mm2. The ends of the connecting wires connected to each joint should be crimped with copper bare crimping terminals, and there should be no transition connection of plugging or welding in the middle of each wire.
The marking of the insulated wires in the thermostat should comply with the provisions of GB4884. The marking should be printed by a numbering machine, and the writing should be clear and durable for easy use and maintenance.
The color of the wires in the thermostat should comply with the provisions of GB2681. 5.2.5.3 Terminals
The identification and alphanumeric symbols of the terminals in the thermostat shall comply with the provisions of GB4026. 5.2.5.4 Indicator lights and buttons
The colors of the indicator lights and buttons used in the thermostat shall comply with the relevant provisions of GB4025. 5.2.5.5 Printed circuit boards
The manufacture of the printed circuit boards used in the thermostat and the welding of its components shall comply with the provisions of the relevant standards. 5.2.5.6 Temperature control instrument
Class C thermostats shall be equipped with a digital display program temperature control instrument with a microprocessor, with a temperature indication accuracy of not less than 0.25, a setting accuracy of not less than ±0.5%, and a resolution of not less than 1°C (excluding display error). The digital display shall be clearly legible, and its height shall not be less than 14.3mm. The instrument shall be equipped with an external socket so that it can be connected to a recorder or printer when necessary. Class B and Class A thermostats shall be equipped with a temperature indication accuracy of not less than 0.5 and a setting accuracy of not less than ±1%. When otherwise specified (see Article 9.2), Class A thermostats may also be equipped with temperature control instruments with a temperature indication accuracy of Class 1 and a setting accuracy of not less than ±1%.
Electrical Instruments
JB/T 6205 -1991
Thermostats should be equipped with necessary voltage and current meters. When required (see Article 9.2), other electrical instruments may also be equipped. The accuracy level of the electrical instruments should not be less than Class 2.5.
Over-temperature control system
When required (see Article 9.2), the temperature controller shall be equipped with an over-temperature control system. The over-temperature control system shall comply with the relevant provisions of Article 5.2.6 or Article 5.2.7 in JB4311.7, JB4311.8, and JB4311.10. 5.2.5.9
Transformer
The transformer used with the KSB series temperature controller shall comply with the relevant provisions of GB1094 for dry-type transformers. 5.2.5.10 Others
Other control devices related to the matching experimental furnace may be installed in the temperature controller as needed, and corresponding provisions shall be made in the enterprise product standards and (or) contracts.
5.3 Performance
5.3.1 Insulation resistance
The insulation resistance between different charged parts in the thermostat and between each charged part and the metal shell should be no less than 2Ma. 5.3.2 Dielectric strength
The insulation resistance between different charged parts in the thermostat and between each charged part and the metal shell (grounding) should be able to withstand the corresponding dielectric test voltage specified in Table 2 according to its working voltage.
Rated insulation voltage
Ui≤60
60
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