Price: on request
Multi-channel alarm system "Man in a cell" is made in accordance with the new rules safe operation refrigeration units PB-09-220-98 (Chapter 7). The system ensures the safety of people working in refrigeration chambers or other locked premises by sending a light and/or sound signal to the control room, operator's room, passageway or other room with permanent personnel to notify that a person is blocked or some other emergency situation.
Scope of application: equipment of locked premises, social facilities, industrial enterprises and cold storage plants, chemical enterprises and other industries.
Specifications
Characteristics | Values |
Operating principle | remote parallel polling of the status of signal buttons |
Alarm type | sound, light alarm |
Alarm response time, s | no more than 5 |
Number of sensors, pcs. | |
Remote control-sensor communication line | wired, 3 cores, up to 30 Ohm |
Maximum distance between the information panel and the sensor, m | |
Operating temperature range environment, WITH: | |
Information console | |
from -40 to +40 |
|
Nutrition from single-phase network alternating current, V/Hz | |
Power consumption, W, no more | |
Overall dimensions, mm: | |
Information console | |
Sensor |
Warranty service and repairs are free for 3 years.
The supplied devices are completed with a package of necessary documentation: manufacturer’s passport, operating instructions, connection diagram, verification protocol. Documents are not sent separately.
Ask a question about SIGNAL-64K “man in cell” alarm system
Fields marked * are required.Other equipment:
| Name | Price without VAT) |
| - | |
| - | |
Alarm Man in a cell. Working draft
Detailed design of the "Man in a Cell" alarm system
PDF format
In accordance with SP 109.13330.2012 “Refrigerators”, clause 5.29, in the premises of refrigerators, the project provides for a “Man in a cell” safety alarm.
The signal output is provided to the control room (room 26) with personnel present 24 hours a day to an operator console of the “ChK-10” type.
Work algorithm.
In normal operation mode (panic buttons are inactive), there is no signaling from the operator's addressable LEDs and no audible signaling on the operator's console. The illumination of the emergency alarm button itself operates in continuous mode.
When the alarm button is activated in the USO controller, a signal is generated to turn on the actuator in the form of a light display "Man in the cell" and an addressable alarm signal to turn on the light and sound alarm on the operator's console.
If the connection between the device and the remote control is not broken, the button backlight begins to blink at a frequency of 0.5 Hz, and the signal LED of this device on the operator’s console will glow continuously. The sound alarm turns on.
If there is no connection between the control unit and the operator’s console, a signal to turn on the light display of the emergency control system is generated, but the blinking frequency of the button backlight becomes 2 Hz. The signal LED for this device on the remote control induces a malfunction - it lights up in pulse mode (2 times per second). There is no sound alarm.
When you press the panic button again, its backlight switches to continuous mode; there is no corresponding addressable signal LED on the operator panel and there is no sound alarm.
Safety instructions.
To ensure safe operation of the system, all metal parts of electrical equipment that are not normally energized, but which may become energized due to insulation failure, must be grounded.
Grounding must be carried out in accordance with the “Rules for Electrical Installations” (PUE), SNiP 3.05.06.85 “ Electrical devices", the requirements of POST 12.1.30-81 and technical documentation of component manufacturing plants.
Resistance protective grounding should be no more than 7 ohms.
Sign and place of grounding Perform according to POST 21130-75.
When installing and setting up equipment, comply with the instructions and safety measures specified in the operational documentation of equipment manufacturers, instructions for installation of products included in the system, as well as the requirements of SNiP 12-03-2001 Occupational safety in construction. Part 1 General requirements, SNiP 12-07 -02 Labor safety in construction. Part 2. Construction production, and Interindustry regulations on labor protection (safety rules) during the operation of electrical installations
From VNTP 03-8628.1. On distribution refrigerators, the following types of communication and alarm systems should be provided: telephone installation, electric clock installation, radio installation and alarm electrical alarm system.
28.2. Telephone communications must meet the design standards of the USSR Ministry of Communications. Telephone communication should be designed, as a rule, from a city automatic telephone exchange with the installation of direct landline telephones.
It is allowed to install a corporate automatic telephone exchange (PBX) on the refrigerator only for intra-site communication without the right to access a city automatic telephone exchange (PATS).
28.3. The local telephone exchange should be located in the telephone load center of the refrigerator in a separate room in the administrative building. The area of the room must be at least 18 m2 and a height of at least 3.2 m to the beam, with natural light.
28.4. Electric clock installation should be provided in administrative, office and other rooms of the refrigerator by installing a secondary electric clock.
The primary electric clock should be installed in the telephone exchange room of the refrigerator.
28.5. Radio coverage should cover the territory of the refrigerator, rooms with permanent occupancy (except for refrigerated rooms), as well as dressing rooms.
Loudspeakers with a power of 10 W should be connected to the city radio feeder line directly, and subscriber ones - through a step-down transformer. Switching on outdoor loudspeakers is possible only during special periods.
28.6. Electrical alarm systems should include:
fire alarm (manual and automatic);
security alarm that blocks windows and doors of premises;
security alarm from low-temperature chambers (from 0 °C and below) of the refrigerator in case a person is locked in them.
28.7. Design solutions By fire alarm must comply with the requirements of “Fire automatics of buildings and structures”.
The fire alarm must be powered from different sections a two-transformer substation or from two nearby single-transformer substations connected to different supply lines, with an automatic transfer device on the low voltage side and a fire alarm concentrator installed in the premises.
If the refrigerator is powered via one supply line, and the second is a backup without an ATS device on the high side, dry rechargeable batteries, the capacity of which must provide power to the fire alarm system for at least 24 hours.
Automatic fire protection should be provided in accordance with the List of buildings and premises to be equipped by automatic means fire extinguishing and automatic fire alarm systems approved by the USSR Ministry of Trade.
In the refrigerated chambers of the refrigerator with a temperature of +5 ° C and below, automatic fire alarm sensors are not required to be installed if the fire resistance level of the enclosed structures is not lower than the second.
28.8. Security alarm detectors (man in cell) should be installed inside refrigerated cells at the exit doors on the right at a height of 0.5 m from the floor.
28.9. Security alarms should be determined according to the List of enterprises, buildings and premises subject to installation of automatic security alarms, approved by the USSR Ministry of Trade.
28.10. The alarm receiving station, as a rule, should be designed as a common one for the fire department, burglar alarm and security alarms and installed in a security room with staff on duty around the clock.
Installation in the instrumentation and control room is allowed.
28.11. For telephone installation, electrical clock installation and electrical alarm signaling, it is necessary to design a common integrated distribution cable network, connected to the receiving station through the local PBX cross-connect.
To avoid interference, the radio network should be laid separately from the complex distribution cable network.
28.12. The approximate number of city and local telephones, radio points, as well as the capacity of the local telephone exchange is given in Table. 12.
“MANUAL ADDRESSED ALARM SYSTEM “MAN IN CELL” CHK-10 Operating manual GCPS 66.00.00.000 RE LLC “POLITECHFORM-M” office ...”
MANUAL ADDRESS ALARM SYSTEM
"THE MAN IN THE CELL"
Manual
GCPS 66.00.
LLC "POLITECHFORM-M"
[email protected], www.ptfm.ru______________
DESCRIPTION AND OPERATION
PURPOSE
PRODUCT COMPOSITION
SPECIFICATIONS
DELIVERY CONTENTS
PRODUCT OPERATION
1.5 REMOTE, KS, USO
1.6 SECURITY
1.7 MARKING
1.8 PACKAGING
2. INTENDED USE
GENERAL INSTRUCTIONS
2.1 INSTALLATION
2.2 CONFIGURATION
2.3 LED AND SOUND SIGNALING.................................. 16 2.4 SETTING THE ADDRESS OF THE USO AND KS
2.5 TESTING SIGNAL LEDS.................................................. 20 2.6 PRODUCT CONFIGURATION
3. MAINTENANCE
SECURITY MEASURES
3.1 MAINTENANCE PROCEDURE
4. CURRENT REPAIRS
GENERAL INSTRUCTIONS
4.1 SAFETY PRECAUTIONS
4.2 ELIMINATION OF THE CONSEQUENCES OF FAILURES
5. STORAGE AND TRANSPORTATION
6. DISPOSAL
7. DELIVERY SET
8. CERTIFICATE OF ACCEPTANCE
9. WARRANTY
WARRANTY CARD
INFORMATION ABOUT WARRANTY AND POST-WARRANTY
REPAIRSAppendix A
Appendix B
Appendix D
Appendix D
Manual addressable alarm system "Man in a cell".
These operating instructions are intended for personnel servicing the manual address system “Man in a Cell” (hereinafter referred to as
– Product) and contains:
Detailed instructions required for safe and correct operation, installation and maintenance;
Description of the configuration procedure;
Specifications;
Storage and transportation conditions;
Details of labeling and special conditions operation;
Addresses of the manufacturer and enterprises providing warranty and post-warranty service for the Product.
The company reserves the right to make changes to the design of the Product that do not lead to changes in their technical characteristics, which may lead to non-essential discrepancies between the product design and the text of this document.
The Declaration of Conformity was registered on November 19, 2014 under the number TS N RU D-RU.AU14.V.16166. Valid until 11/18/2019
The following abbreviations are used in the text:
PUE – rules for electrical installations;
Software – software;
RE – operating manual;
KS – segment controller USO – interface device with an object;
PC – personal computer.
DESCRIPTION AND OPERATION
1.1.1 PURPOSE 1.1.1. The product is designed to provide an emergency call signal to premises with permanent staff on duty, meeting the requirements set out in the PB Rules 09-595-03 to ensure compliance with safety rules when working with refrigeration units.
1.1.2. Scope of application of the Product:
Manual addressable alarm system "Man in a cell".
Premises locked from the outside with a threat to human life and health Refrigeration units, Bunkers, basements, warehouses, etc.
Socially significant objects Hospitals, hospices Schools, children's. Gardens, etc.
Emergency signaling Hazardous production areas, Protected facilities, Places to prevent emergency leaks, flooding, fire, etc.
1.2 COMPOSITION OF THE PRODUCT The product consists of an operator console and from 1 to 16 interface devices with 1.2.1 objects (hereinafter referred to as USO), which constitutes the basic segment of the alarm system. When the number of control objects is more than 16, an additional segment controller (hereinafter referred to as KS) is used, one for every additional 16 SDCs.
1.2.2 The operator console provides:
Displays the status of panic buttons connected to the device.
Indication of emergency events - violation of the exchange between the console, CS and USO.
Digital exchange with external devices.
1.2.3 The USO module provides:
Continuous conversion of the state of the panic button connected to the device (on / off) into a digital signal for transmission to the remote control or CS via the RS-485 interface.
Formation of a control current signal, turning on the light display.
1.2.4 The KS module is designed to expand the number of devices connected to the control panel.
1.2.5 The operator's console is installed in a room with permanent personnel on duty and is designed to generate a sound and light alarm signal.
1.2.6 The USO controller is located directly next to the controlled object and has terminals for connecting an alarm button and an actuator, in this case the “Man in a Cell” LED display.
Manual addressable alarm system "Man in a cell".
The panic button and actuator are products 1.2.7 of third-party manufacturers and, in general, are not included in the Product delivery package.
1.2.8 When using KS controllers, the operator console is manufactured for a specific design of the alarm system.
– – –
Wire cross-section, mm2, no more:
Power supply for panic button, light display 1.0
Digital exchange cable UTP5 0.2 1.3.5 Product corresponds to group climatic version UHL 3.1 according to GOST 15150-69.
1.3.6 According to the conditions of electromagnetic compatibility, the product modules comply with GOST R 51522.1-2011. The product has class II protection against damage electric shock according to GOST R IEC 61140-2000 1.3.7 The product in the transport container can withstand extreme temperatures in the range from minus 40 to plus 60 oC.
1.3.8 The product in a transport container can withstand exposure to a relative air humidity of 98% and an ambient temperature of 35 °C.
1.3.9 Average time between failures of the Product (MTF) is at least 100 hours.
1.3.10 The average service life of the Product before write-off is at least 10 years, subject to operating rules in accordance with the requirements set forth in the operational documentation.
– – –
1.5 OPERATION OF THE PRODUCT In normal operation mode of the Product (alarms are inactive) – 1.5.1 signaling, addressable operator LEDs and sound signaling on the operator’s console are absent. The illumination of the emergency alarm button itself operates in continuous mode.
When the alarm button is activated in the USO controller, 1.5.2 a signal is generated to turn on the actuator in the form of a light display and an addressable alarm signal to turn on the light and sound alarm on the operator's console (directly - if the USO is in the base segment or through the intermediate KS controller).
If the connection between the device and the remote control is not broken, the button backlight begins to blink at a frequency of 0.5 Hz, and the signal LED of this device on the operator’s console will glow continuously. The sound alarm turns on.
If there is no connection between the device and the operator's console, a signal to turn on the light display of the device is generated, but the blinking frequency of the button backlight becomes 2 Hz. The signal LED for this device on the remote control indicates a malfunction - it lights up in pulse mode (2 times per second). There is no sound alarm.
When you press the panic button again, its backlight switches to continuous mode; there is no corresponding addressable signal LED on the operator panel and there is no sound alarm.
– – –
Manual addressable alarm system "Man in a cell".
Basic segment operator console On the front panel of the operator console under a transparent plastic cover there are:
Numbered addressable signal LED indicators.
The remote control power supply LED (“POWER” is green).
LED of serviceability of the microcontroller of the operator's console and indication of recording the configuration of the Product (“NORMAL” green light).
Multifunctional “TEST” button for testing signal LEDs and starting the Product configuration procedure.
There is an audible alarm hole on the right side panel of the remote control.
On the back wall of the operator's console there are access holes to the RS-485 digital interface connectors and to the console's power supply block.
General form controller KS is shown in Fig. 2.
– – –
LED indicating exchange of CS with the remote control or another CS (“DATA OUT”
green glow).
LED indicating the exchange of the CS with the device (“DATA IN” green).
Two RJ 45 connectors for connecting to the USO and KS (marked “RS485 POW”).
Two galvanically isolated RJ 45 connectors for connecting to the remote control and the CS (marked “RS485 ISO”).
On the back cover there is a cable entry for the cord for connecting to the power supply blocks of the KS.
1.6.3 General view of the USO controller is shown in Fig. 3
Rice. 3 Front panel of the device
On the top panel of the USO there are two equivalent parallel RJ 45 connectors for connecting to the CS or to the operator console via the RS digital interface. On the bottom panel of the USO there is a window with connection blocks for the backlight of the alarm button, panic button and LED display.
1.7 SAFETY The design of the Product provides electrical, mechanical and 1.7.1 fire safety service personnel when operating in accordance with the requirements of GOST R 52319-2005 “Safety electrical equipment for measurement, control and laboratory applications."
1.7.2 During installation, operation, storage and transportation of the Product, all safety measures set out in the instruction manual must be followed.
Manual addressable alarm system "Man in a cell".
1.8 MARKING
The marking of the remote control, KS and USO includes the following data:
For operator console:
The front panel states:
Product name;
Trademark of the manufacturer;
The control bodies have inscriptions or symbols indicating the purpose of these bodies:
Test and configuration buttons:
Remote control status LED indicators:
"NUTRITION";
Signal LED numbers (01 to 16) *;
On back wall operator console in the switching compartments on the board are given:
Marking of the power cable connection block;
Marking of RS-485 digital interface connectors;
* For basic segment operator console.
For the KS controller:
On the front panel:
Name of the CS and Product;
Marking of RS-485 digital interface connectors for connection to the remote control and CS (“RS485 ISO”);
Marking of RS-485 digital interface connectors for connection to USO and KS (“RS485 POW”);
Digital Communication Status LEDs:
On the back:
Serial number KS;
Date of manufacture;
Power parameters and power consumption.
For the USO controller:
On the Front Panel:
Name of the digital interface USO (“RS-485”);
Full name of the USO;
Name of the manufacturer;
USO serial number
Inscriptions for connection blocks:
Manual addressable alarm system "Man in a cell".
– – –
The marking can be made by pressing, engraving or 1.8.2 in another way, ensuring its safety throughout the entire service life of the device.
1.8.3 The location and method of marking, font size comply with the requirements specified in the design documentation.
1.9 PACKAGING Packaging of the Product and its modules is carried out in accordance with 1.9.1 requirements of GOST 23170-78 and design documentation.
1.9.2 Packaging The products are manufactured modularly, by placing them in a film case with silica gel, in accordance with the requirements of GOST 9.014-78 for group III protection option.
1.9.3 Packaging The product is manufactured in closed ventilated rooms with an ambient temperature of 15 to 40 °C and relative air humidity of up to 80% at a temperature of 20 °C and the content of corrosive agents in the air not exceeding that established for atmosphere type 1 according to GOST 15150. Accompanying documentation in sealed plastic bag placed in a container so that it can be removed without disturbing the moisture-proof installation of the Product.
INTENDED USE 2.
2.1 GENERAL INSTRUCTIONS Upon receipt of the Product in transport packaging, you must make sure 2.1.1 that the packaging is intact. If it is damaged, you should draw up a report and file a complaint with the transport company.
Manual addressable alarm system "Man in a cell".
The manufacturer is interested in obtaining technical 2.1.3 information about the operation of the product and any problems that have arisen in order to eliminate them in the future. All suggestions for improving the design of the Product blocks should be addressed to the manufacturer.
2.2 INSTALLATION Before proceeding with installation, it is necessary to conduct a visual 2.2.1 inspection of the condition of the housings components Products.
2.2.2 Installation and operation of Products with mechanically damaged housings are not permitted.
2.2.3 Before installation, it is necessary to check the completeness in accordance with the passport and technical project. The form should indicate the date of commissioning, the number of the act and the date of its approval by the head of the consumer enterprise, indicating the person responsible for the operation of the Product.
2.2.4 Installation of the Product must be carried out in accordance with the “Rules for the Construction of Electrical Installations” (RUE), “Rules for the Operation of Consumer Electrical Installations”.
2.2.5 Mounting connecting cables– in accordance with the requirements of the PUE.
2.2.6 USO modules are mounted using two screws (self-tapping screws).
The position of the USO body is arbitrary and is determined by the ease of its maintenance.
2.2.7 Connecting the panic button and LED display to the device is given in Appendix B.
2.2.8 KS modules are mounted using four screws (self-tapping screws).
The position of the KS body is arbitrary and is determined by the convenience of its maintenance.
It is allowed to mount the KS on the wall.
2.2.9 The operator console is mounted under hidden wiring on the wall in the control room using four screws (self-tapping screws).
2.2.10 Terminals for external connections correspond to the following internal wire cross-sections:
Power supply of the console, KS - no more than 2.5 mm2;
Digital exchange via RS-485 interface for the remote control, KS, USO - no more than 0.2 mm (UTP5 cable);
Manual addressable alarm system "Man in a cell".
The cable for connecting the panic button and light display to the device is no more than 1.0 mm2.
2.2.11 Connection tables are given in Appendix B.
2.2.12 Markings of block terminals and connectors are given in Appendices C, D, E.
2.3 CONFIGURATION The product is delivered to the Customer with a passport and manual.
2.3.1 All USO and KS require pre-installation addresses by the user or installer of the Product.
The user has access to the Product configuration function.
The product allows the replacement of modules and its additional expansion if necessary.
2.3.2 Install according to section 2.5. of this RE addresses for USO and KS.
2.3.3 Provide mains power supply to the power supply terminals of the console and the CS.
2.3.4 Connect all modules of the Product in the required configuration with a cable with the parameters specified in section 1.2.
2.3.5 Remove the transparent plastic cover from the remote control.
2.3.6 Turn on the power supply.
2.3.7 To record the implemented configuration of the Product into the memory of the operator console, you must press and hold the “TEST” button until the LED indication “NORMAL” turns off (no more than 10 seconds).
Note: In operating mode, the product checks the current configuration with that stored in the non-volatile memory of the remote control. In case of a mismatch, a mismatch signal is issued to the signal LEDs - a pulsed light of the LED signaling with a frequency of 2 Hz.
2.3.8 If you change the composition or configuration of the Product connections, you must repeat the procedure for recording the implemented configuration.
2.4 LED AND SOUND ALARMS
The operating modes of the light and sound alarms of the Product are given in 2.4.1 Table 2.1 The operating modes of the light alarms for the device are given in 2.4.2 Table 2.2 Manual addressable alarm system “Man in a cell”.2.5 SETTING THE ADDRESS OF USO AND KS The address setting of the controllers USO and KS is set by DIP 2.5.1 switch (Appendix C, D). The permanent address 0 is reserved for the operator console.
2.5.2 The principle of address indication on the operator’s console is as follows: On the USO and KS boards there is an address switch that can be set in the range 0…15 for USO and 1…15 for KS. The address set on the USO board determines the low-order part of the USO address in the product, and the address set on the KS board determines the high part of the USO address in the product.
2.5.3 If it is necessary to monitor the status of no more than 16 control points, it is enough to use a remote control with 16 signal LEDs, where the address of the device coincides with the number of the signal LED on the remote control.
2.5.4 When using the CS (more than 16 points must be controlled) on the operator console, the position of the addressable signal LED in the LED matrix is determined by the address of the USO (matrix row) and the address of the CS (matrix column).
2.5.5 Figure 4 shows a table of correspondence between the states of addressable DIP switches for USO and KS and addresses.
DIP Status Code DIP Status Address Switch Address Switch Code Manual Addressable Man in Cell Alarm System.
2.6 TESTING SIGNAL LEDS
To check the functionality of the signal LEDs on the 2.6.1 operator console, you must press the “TEST” button once (no more than 3 seconds).The signal LEDs begin to light sequentially in order of increasing LED number with a glow time of 2 seconds.
2.7 PRODUCT CONFIGURATION The composition and configuration of the installed Product is recorded in the memory of the operator console 2.7.1 each time:
Installation and completion commissioning works Products;
Removing/adding USO;
Removing/adding CS;
Changes in the address of USO or KS.
MAINTENANCE
3.3.1 SAFETY MEASURES According to the method of protecting people from electrical shock, Product 3.1.1 belongs to class II according to GOST R IEC 61140-2000.
3.1.2 Only persons who have studied these instructions and completed the necessary training must be allowed to operate.
3.2 MAINTENANCE PROCEDURE
The product must undergo periodic external inspection 3.2.1 and start the testing mode.3.2.2 During an external inspection, it is necessary to check:
Availability and reliability of fastening of module housings;
No breakage or damage to the insulation of connecting cables;
Reliability of cable connections;
Manual addressable alarm system "Man in a cell".
No dents or visible mechanical damage, as well as dust, dirt and cracks on the module body.
3.2.3 The frequency of inspections is established in accordance with the requirements of local regulations.
MAINTENANCE
4.4.1 GENERAL INSTRUCTIONS Repair of the Product is carried out either by the repair service 4.1.1 of the enterprise, or by the repair service of the manufacturer 4.1.2 The repair service must establish signs and suspected causes of failure of a component of the Product and fill out a defective statement (complaint) for repair on its own, further accounting and (or) transfer to the manufacturer’s repair service.
4.1.3 Persons who have studied the this document who have undergone appropriate training and are authorized to carry out repairs.
4.2 SAFETY MEASURES When dismantling and installing, preparing and repairing components 4.2.1 of the Product, it is necessary to comply with safety rules, as well as technological requirements adopted at the enterprise operating the Product.
– – –
STORAGE AND TRANSPORTATION
5.The product in the manufacturer's packaging allows 5.1 transportation by any type of transport. When transported by open transport, Product modules in packaging must be protected from direct exposure to precipitation.
The product can be stored either in a transport container or without 5.3 packaging.
Storage conditions for product modules in transport containers: 2 according to GOST 15150-69.
Storage conditions Products without packaging: 1 according to GOST 15150-69.
Manual addressable alarm system "Man in a cell".
6. DISPOSAL The product does not contain precious or non-ferrous metals. Disposal is carried out in accordance with the procedure adopted at the user enterprise for alloy steels.
CONTENTS OF DELIVERY
7.– – –
9. WARRANTY
The Manufacturer guarantees compliance of the Product “Man in a Cell” 9.1 with the requirements of GCPS 63.00.00.000TU provided that the consumer complies with the conditions of transportation, storage and operation.The premises of the machine and equipment departments can be located in a separate building or built into the refrigerator building and separated by a main wall without windows and doorways. The enclosing structures of the building of the engine and equipment rooms must have easily removable elements (windows, doors) with a total area of at least 0.03 m² per 1 m³ of building volume. The engine room should be located on the ground floor. It is not permitted to locate premises with permanent workplaces and household premises above and below the engine room. It is necessary to have two mutually remote exits, one of which must be directly outside. It is allowed to install one exit for an engine room with an area of no more than 40 square meters subject to placement refrigeration equipment at the wall opposite the exit. From the equipment room, in addition to the exit to the engine room, there must be an exit to the outside, otherwise a separate equipment room should not be provided.
Basic safety requirements prohibit unauthorized people from entering the engine room. On entrance doors The sign “Compressor shop” is posted. No entrance for unauthorized people. Room B-1b." Workshop doors must open outwards. A bell is installed to call the driver.
Another important provision of the basic safety requirements for the operation of refrigeration units. Outdoors, at the exits from the compressor shop, they are mounted on the wall emergency shutdown buttons all equipment in the engine room. Simultaneously with the stop of compressors, pumps and fans, emergency ventilation is switched on from a separate power source.
In refrigeration chambers with temperatures below 0°C, there must be light and sound alarm system “Man in a cell”. It is installed near the chamber doors at a height of no more than 50 cm from the floor and is brought to the compressor workshop on the control panel or signal board.
The floor of the compressor shop should not be lower than the level of the adjacent territory. The floors are made smooth, non-slip, and made of fireproof material.
The central control panel (CPU) is arranged in the presence of centralized control, regulation and signaling. It is located in a separate room next to the compressor workshop or inside it. A window opening with an area of no more than 3 m² is allowed in the dividing wall.
Household rooms for changing clothes, a bathroom, a meal room, the workshop manager's office, a metalworking area, and a storage room must be separated from the compressor workshop by a fireproof wall and have an exit to the outside.
The driver's desk is installed in the central control room or directly in the compressor shop in an area convenient for monitoring the readings of instrumentation, automation and alarm systems, and the operation of equipment. Daily and repair logs are located at the workplace; telephone; rules of design and safe operation; telephone numbers and address of the organization servicing the installation; equipment operating instructions; indicator paper for detecting ammonia leaks (in sealed packaging) or a halogen lamp for detecting freon leaks.
Another important provision of the basic safety requirements for the operation of refrigeration units. The engine room must be equipped first aid kit general purpose , containing sterile dressings; hemostatic agents; Vishnevsky ointment or penicillin ointment; bicarbonate of soda; dark safety glasses; wooden spatulas for applying ointment; ammonia and valerian drops.
In the anti-ammonia first aid kit should be 1-2% solution citric acid; 3% lactic acid solution; 2-4% solution boric acid; 1% solution of novocaine, codeine and alcohol.
In the anti-freeze first aid kit there must be ammonia (for breathing).
Gas masks type KD (box color - gray), devices compressed air type ASV, universal rescue wetsuits type USGK and rubber gloves - must be in the places designated for this (Table 3).
For all gas masks of the KD type for individual use, registration cards are issued, in which the issuing country, the date of the last inspection and the next check, to whom it was issued and the storage location are entered. Each gas mask must have a plate with the owner’s name and helmet number. To select a gas mask helmet, measure the lengths of circular lines, one of which runs along the edge of the chin, cheeks and across the top of the head. The second circular line connects the ears and runs above the eyebrows. The sum of two measurements determines the size of the helmet-mask:
Gas masks must be kept clean. When checking them, close the hole in the filter box with a rubber stopper and take 3-4 deep breaths. If breathing is impossible, the gas mask is sealed.
In the premises of refrigerant installations, there must be at least two pairs of rubber gloves and mittens in a glazed cabinet, as well as one insulating gas mask IP-46.
Workers and engineers must be provided with special clothing and safety footwear in accordance with standard industry standards approved State Committee USSR on labor and social issues and the All-Russian Central Council of Trade Unions.
General purpose and special tools assembled in the metalworking department or directly in the compressor workshop. For current repair work a workbench with a bench vice is installed. The tool is placed in the drawers of the workbench and on the shield next to it.
Spare parts that are subject to rapid wear and gasket material are also stored in the metalworking area.
Dielectric tools and means of protection against electric shock are placed in the central control room or a separate room for instrumentation and automation mechanics.
Fire-fighting means must comply with the standards approved by the Scientific Council of VNIHI (Table 4).
The use of fire extinguishing agents for economic purposes is prohibited.
A fire shield with the following set must be installed at the main entrance to the engine room: 2 fire extinguishers, a box of sand, asbestos sheet, 2 crowbars, 2 axes, 2 shovels and a metal hook.
The shield equipment is sealed or sealed. There should be an inventory of the entire set on the shield. The shield is painted in White color with a red border (edging) along the edges 40 mm wide. Firefighting tools, fire extinguishers and boxes are painted red; metal parts of axes, shovels, as well as crowbars and hooks - black.
Ventilation engine and equipment room ammonia refrigeration units must be supply and exhaust, forced with the following air exchange rate per 1 hour: inflow - according to calculation, but not less than 2; hood - according to calculation, but not less than 3; emergency exhaust - at least 8 (excluding the performance of a permanent exhaust ventilation). It must have starting devices both inside these rooms and outside.
Fences supply ventilation are installed in the lower part of the wall at a height of 0.3-1 m from the floor, the hood is located on top at the maximum distance from the intakes.
Indoors freon installations, supply and exhaust (aka emergency) ventilation must be forced with a multiplicity of at least 3. Suction opening exhaust fan should be located at a distance of 1.0-1.5 m from the floor.
Water and steam heating systems are allowed. The coolant temperature should not exceed 130°C.
Lighting In engine rooms, both natural and artificial are used.
Daylight- through windows and skylights.
Artificial lighting carried out by incandescent lamps and gas-discharge (fluorescent) lamps. The latter are more durable and more economical, but cause pulsation luminous flux, therefore it is recommended to connect them in different phases of the network.
There are general, combined and local artificial lighting.
At general lighting minimum illumination is 75 lux when using incandescent lamps and 150 lux when lighting with gas-discharge lamps.
Combined lighting consists of general lighting of the workshop and local lighting of working surfaces, instruments, etc. Their minimum illumination should be at least 300 lux. The recommended lamp hanging height is shown in table. 5.
For local lighting lamps with reflectors are used. The use of local lighting only is prohibited.
Portable lamps are also used for local lighting when inspecting, repairing and cleaning compressors and equipment. In addition, pocket and rechargeable flashlights any explosion-proof design with a voltage of no more than 12 V.
Emergency lighting for short-term production work, it should turn on when the main lighting is turned off, operate from an autonomous source and amount to at least 10% of the standard illumination of these places.
Basic safety and industrial sanitation requirements establish acceptable noise and vibration levels for engine rooms.
Noise level in the compressor shop should not exceed acceptable standards, in which there is no decrease in hearing acuity for a long time and speech is intelligible at a distance of 1.5 m from the speaker. To reduce noise, the CPU is soundproofed and soundproof equipment casings are used. As individual funds Ear plugs, headphones and helmets are used to protect drivers.
Vibration working equipment should not coincide in frequency with the frequency of natural vibrations of the human body and its internal organs(4-400 Hz). To reduce vibration, pumps and fans are installed on elastic supports and vibration-isolating foundations; pipes are connected to pipelines and air channels using flexible inserts; the peripheral speed of the fans must be limited; foundations for compressors and compressor units are made separate from the foundations of building walls and columns; carry out timely repairs of bearings and eliminate runout of equipment shafts.
