Alstom draws on its technological expertise and innovative capabilities to meet the current and future needs of operators and passengers. Its solutions cover a whole range of services, including urban transit, mainline travel, regional transport, mining networks and freight. Learn moreMore Details
1 Introduction | Seismic Signals from Mining Operations ...
· The report then considers how (1) the size of the regional signals might be reduced, or (2) the resulting signals could be more easily recognizable as mining related. The DOE Working Group report states that the "U.S. mining industry is intended to be the primary beneficiary of this work.More Details
Signaling System in Mines
This article throws light upon the three main methods of signalling system in mines. The methods are: 1. Bare Wire System 2.Pull Wire System 3. Signaling Keys and Receivers.. Signaling System in Mines: Method # 1.Bare Wire System:. In this system there are two parallel bare wires, usually of galvanized iron, which are suspended at a convenient height just above head level along the entire ...More Details
Energy Isolation / Lock-Out / Tag-Out | Environmental ...
Modern machinery can contain many hazards to workers from electrical, mechanical, pneumatic or hydraulic energy sources. Disconnecting or making the equipment safe to work on involves the removal of all energy sources and is known as isolation.. Lockout-Tagout refers to the safety procedure used in industry and research settings to insure that dangerous machines have been properly shut-down ...More Details
Isolation the key to safety on site
Isolation the key to safety on site. Uncategorised. Machinery lockout devices are a key safety tool in the mining industry, to prevent injury of workers. They ensure that equipment is isolated, or ...More Details
In electrical engineering, electromagnetic shielding is the practice of reducing the electromagnetic field in a space by blocking the field with barriers made of conductive or magnetic materials. Shielding is typically applied to enclosures to isolate electrical devices from their surroundings, and to cables to isolate wires from the environment through which the cable runs.More Details
An overview of remote isolation systems applied in process ...
An Overview of Remote Isolation Systems Applied in Process Industries David B. Durocher, Senior Member, IEEE, and Mike Lane, Member, IEEE Abstract—This paper describes the application of remote isolation applied in mining industry conveyance systems.More Details
Mining operations and mobile equipment selection audit …
effective audible warning signal (e.g. a horn) to warn other vehicles or personnel in the vicinity. Personnel: N/A Method: Inspect the pre-start booklet and a sample of mobile equipment to verify that an effective audible warning signal is being provided on mobile equipment at the mine. Refer to MSIR rr. 10.43 and 13.3(1)(b).More Details
The Mining and Quarrying Occupational Health and Safety ...
Equipment is defective. Equipment has a fault that could cause injury or damage. Repairs incomplete. To use an out of service tag: Clearly and legibly complete all items on the tag. Securely attach tag to main isolation point of equipment or directly onto equipment itself (if no isolation …More Details
The Three Facets of "Floating" Measurement Solutions ...
This degrades signal quality and measurement accuracy. Isolation, in addition to insulation, is the preferred solution for both measurement quality and safety. True channel-to-channel isolation minimizes parasitic effects; the smaller mass of the measurement modules is …More Details
Industrial and mining signalling
· Specifically designed for industrial and mining applications, the joint solution from Bombardier Transportation, Schalke and Nordic Minesteel Technologies optimizes and maximizes the rapid transport of raw materials to enable fully automated, continuous and efficient productivity. As a specialist for safe, reliable, high-performance traction ...More Details
Why Use Isolated Signal Conditioners
Minimize the source impedance of the signal source. Use isolation amplifiers to keep it below 100Ω, although at very high sample rates, even this value may be too high. When source impedance cannot be controlled, an isolation amplifier is needed between the signal source and …More Details
A group isolation system is an efficient method of isolating multiple energy sources prior to maintenance or repairs commencing. In a group isolation, a person known as an authorised isolator would isolate all the energy sources with a keyed alike set of safety padlocks (often yellow in colour). The isolations would be verified by a second person.More Details
Evaluation of a Signaling and Warning System for ...
each mine have (1) a program of instruction to include location wireless, ultra-low-frequency electromagnetic signaling and use of fire-fighting equipment, escapeways, exits, and routes technology for warning and paging systems for the mining of travel; evacuation procedures; and fire drills; and (2) automatic industry.More Details
Railway Signaling Equipment (RSE) Catalog General ...
Railway Signaling Equipment (RSE) Catalog General Information Rev. 2-20 General Information p. 1 Using the Rail STS RSE Catalog Your Rail STS USA (formerly known as Ansaldo STS USA) Railway Signaling Equipment (RSE) Catalog is designed to help you find complete technical and ordering information onMore Details
Accessory Equipment XX General Cable mining cables are manufactured in accordance with: † ICEA S-75-381 Portable and Power Feeder Cables for Use in Mines and Similar Applications † CAN/CSA C22.2 No. 96 Portable Power Cables, and certified by Natural Resources CanadaMore Details
· The electrical version of the voice signals from a microphone are analog signals; they are continuous current or voltage signals that vary smoothly with time, as shown in Figure 2-2a contrast, a text or data message is likely to be a digital signal.A digital signal is one in which the signal intensity maintains a constant amplitude for some period of time and then abruptly changes to ...More Details
Isolation of hazardous energies associated with plant in ...
Isolation of hazardous energies in plant in Western Australian mining operations guideline. Chapter 2 discusses the risk management process. Chapter 3 provides guidance on the management of isolations. Chapters 4 and 5 discuss isolation of hazardous energies …More Details
Using Signal Isolators to Reduce Ground Loop Problems | EC&M
· Signal isolators use one of two techniques to do the job: Analog signal isolation, which uses an isolation transformer to chop, isolate, and reconstruct the signal. Discrete signal generation, which chops, transmits optically, and reconstructs the signal. Signal isolators that use this technique are called "opto-isolators."More Details
What is vibration isolation? Why vibration isolation is ...
· The process of isolating an object such as isolating machinery from the source of vibration is called vibration isolation. When motorized equipment such as electric motors, fans, or pumps is mounted to a solid structure then the chances of transferring energy from the equipment to the structure in the form of vibration are high.More Details
Mining Products | Telbit
Telbit is considered the leading suppliers of Shaft Signaling equipment for the Gold and Platinum mining industry. Our Locked Bell System consists of an Onsetter, Banksman, Driver & Call Bell units, based on the popular 3-wire communications system, which forms the backbone of all communications between the surface winder and below surface levels.More Details
Equipment Isolation Methods for the Process Industries
There are many ways of isolating equipment. Each offers different levels of security. They include. Level 1 — Closed Valve. Level 2 — Closed Valve with Open Bleeder. Level 3 — Double Block and Bleed. Level 4 — Block and Bleed with Line Break. Level 5 Block, Bleed and Spectacle Blind. Level 6 Double Block and Bleed with Blind.More Details
Safety Remote Isolation System for Mining Equipment
· REMSAFE is a safety-related remote isolation system. It isolates mining equipment from all source of energy at the equipment, remotely from its substation. W...More Details
Experimental Measurements and Antenna Isolation for TETRA ...
Antenna isolation is a key consideration in the design of any radio communications system. Sufficient isolation is required to ensure that interference between systems is kept within acceptable levels (levels at which the equipment can operate effectively). f GREP Repeater f f f f f Donor f Antenna Server Antenna Fig. 3.Radio frequency (RF ...More Details
Communication systems for mining
Integrated electrical equipment for shafts Signaling system for skip winder • Integrated electrical equipment for shafts with intrinsically safe subsystems for signaling, mine radio, shaft knocker and charging/discharging 6 EATON''S CROUSE-HINDS FHF Funke + Huster Fernsig - Mining SolutionsMore Details
Guideline Mechanical and Process Isolations Major Hazard ...
Change proposal should be raised for upgrade of isolation equipment. 4.2 General Mechanical isolation is the prevention of movement between equipment parts in the work area. This requires the application of some or all of the following provisions: Positive isolation of the moving parts from all sources of hydraulic fluid Positive isolation from ...More Details
Vehicle/Mobile Equipment and Visibility Hazards in Mining ...
Vehicle/Mobile Equipment and Visibility Hazards in Mining Workplaces Workers can be at risk of serious injury due to hazards involving vehicles and mobile equipment at mines. Various types of vehicles, including locomotives, haul trucks and mobile equipment such as loaders and excavators can be found in mining workplaces. Incidents involvingMore Details
Isolation Transformers and Surge Protection
signal noise that may be below the SPD clamping voltage. The Surge Filter is series connected devices and must be rated to the maximum circuit current. Isolation Transformers: Isolation Transformers are generally composed of two separate windings with a magnetic shield between these windings to offer noise control. The transformerMore Details
Fault detection and isolation
Fault detection, isolation, and recovery (FDIR) is a subfield of control engineering which concerns itself with monitoring a system, identifying when a fault has occurred, and pinpointing the type of fault and its location. Two approaches can be distinguished: A direct pattern recognition of sensor readings that indicate a fault and an analysis of the discrepancy between the sensor readings ...More Details
Know Your Hand Signals! Basic Standard Hand Signals for ...
Basic Standard Hand Signals for Cranes and Hoisting Equipment Issued: Tag # W i i l i i hand i l hori l Wi i i i i l l ci l i cl i i i i i i i i i i i i i i fi i i i desi i i li ly i ion i i i l. i ; g ignal ( ): ; re gnal i l l fi i l load i Wi i lex fi i l l i l y. i i i l i signal. AP2003-M061 HOIST: th forearm vert ca, and foref nger point ...More Details
Mining Safety Supplies | Creative Safety Supply
The mining industry has unique safety and compliance needs that require unique solutions. Solutions like those found in our extensive inventory of mining safety supplies, which are designed to ensure that users are kept healthy and whole, without digging too deeply into your budget.More Details
Galvanic Isolation – Signal Isolation and Power Isolation
· Types of Galvanic Isolation. Signal Isolation; Power Level Isolation; Capacitors as an Isolator Signal Isolation. Signal level isolation is required where two circuits of different nature are communicating with each other using some type of signal. For example, two circuits using independent power source and operating of different voltage levels.More Details
Understanding Signal and Power Isolation Techniques ...
· This isolation example shows signal and dc isolation in an industrial PLC. (Source: Texas Instruments) The other part of the isolation is the dc power to signal conditioning circuits.More Details
Alarm Signalling Equipment: 06 Connection Requirements ...
The most common signals that have been identified as being inhibited are the fire detection and alarm system status (Isolate and Fault) signals. In addition, there have been some circumstances where the fire alarm signal may have also been isolated. Such isolation has been observed to be achieved by "shorting out" the signal wiring.More Details
Isolation facilities for equipment operated by electricity ...
· Prior to the performance of any task on equipment operated by electricity or other associated equipment it is necessary to identify all of the harmful energy sources and effectively isolate each. This safety bulletin covers some relevant issues associated with isolation and isolators for equipment operated by electricity.More Details
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