this procedure. 2 Electrical Safety Procedure Work Health & Safety Act 2011 Work Health & Safety Regulation 2011 . They are legally required to prepare a detailed internal switching manual that includes safe work procedures for their staff and contractors, and for specific equipment. Time / Date APPENDIX 5: HV Switching Program Subsequent Page. Carrying out a switching and isolation procedure on a marine high voltage system complete with safety documentation. Working safely near live electrical apparatus. The power system deals with voltage above 36KV, is referred as high voltage switchgear.As the voltage level is high the arcing produced during switching operation is also very high. SWITCHING, TAGGING & CLEARANCE PROCEDURES FOR TRANSMISSION & DISTRIBUTION SYSTEMS I. Electrical safety plays an important role in electrical power systems in maintaining the safety to human being and equipment. The procedure for partial measurement and interpretations shall be provided by manufacturer and agreed between user and manufacturer. "high voltage" means an operating voltage of 1kV and higher. If working with a contractor, the contractor shall be in charge of the job . Switching to reconfigure the High Voltage System e) Work outside Exclusion Zones f) Non Access Work g) Isolation of Mechanical Apparatus. 5. Course Description. CBA-I High Voltage Switchgear Test Instrument can test. . HIGH VOLTAGE SWITCHING . 10.1: Hierarchy of Switching introduced. While some of the basic electrical theories discussed in the course may already be familiar to some, it is a great way for those that have spent some years . Preparing to operate high voltage switchgear Establish coordinated and consistent Switching, Tagging, and Clearance Procedures throughout the MEA Transmission and Distribution Systems. Of 4. Switching strategies should be formulated and recorded. A person recommended by the Electrical Engineer or his nominee and appointed in writing by the designated person to carry out switching, isolating, testing and earthing on electrical mains and apparatus, in liaison with and under the instruction of a Control Officer and to issue work permits in respect of such mains and apparatus. This document supports the Guidelines for the safe management of high voltage electrical installations. A Switching Order shall be written (typically by the party . Coex Training's High Voltage Courses cover everything from basic electrical theory all the way through to physically conducting an HV switching program in our training substation.. Procedure: Normal Switching Activities (scheduled) 1. The CapSwitcher was designed to meet modern power quality needsand built for long-term use, capable of handling 10,000 operations. Procedures for Safe Access to High Voltage Electrical Apparatus 29 March 2010 Annual review. High Voltage: Any voltage exceeding 1000 V rms or 1000 V dc with current . It must be understood that there is an incredible variety of equipment used on low, medium and high voltage switchgear today and careless maintenance practices can lead to power system inefficiency and . Control measures. safety designs and operating procedures to prevent injury to persons and major damage to electrical . High-voltage systems are generally associated with utility services and heavy industry, such as pulp mills, sawmills, and mining operations. To request High Voltage (HV) Switching on our network, please complete the below form. The design and maintenance of switchgear play an important role in the supply and control of electrical power in a utility distribution system. High Voltage Switching Course Includes: High voltage switching manual Electricity entities must comply with important safety policies when switching high voltage electrical equipment. International Standard IEC 62271-102 has been prepared by technical committee 17(High voltage switchgear and controlgear). In ships, voltages upto and equal to 1000 volts is called as low voltage system and voltages above 1000 volts is called high voltage system. The course is aimed at marine personnel who may be expected to implement on-board high voltage switching operations. View our Privacy Statement regarding the collection of data. UETTDRIS44. 1 | Safe Work Practices on High Voltage Substation Apparatus CONTROLLED DOCUMENT CONTROLLED DOCUMENT Summary This document supports the Power System Safety Rules and its requirements assembled under 'High Voltage Substation Apparatus Category 5. Be sure to properly ground your experiment and your enclosure. This procedure should be read in conjunction with procedures for access to high voltage apparatus which cover the issue and cancellation of Access Authorities: Access for Work on High Voltage Substation Apparatus; Access for Work on High Voltage Overhead Lines; and Access for Work on High Voltage Transmission Cables. PROCEDURES: 1. CBA-I High Voltage Switchgear Test Instrument is intelligent, multi-functional, accurate, stable, portable, easy to operate, etc. Isolation procedures are more involved. This TV SD Academy training video will show you how to disconnect high voltage systems in vehicles and points you need to be aware of. The Switching Manual has been prepared, and is revised as required, by the Switching Committee comprising representatives of: electricity entities licensed to generate, transmit or distribute electricity in South Australia; a high voltage customer representative; and the Office of the Technical Regulator (OTR), in accordance with CP Number: Purpose: PURPOSE: The purpose of this Procedure is to: 1. UETTDRRF09 Apply access procedures to work on or near electrical network . Please note: A quotation will be prepared and sent to you for approval before we will action your HV switching request. Electrical Switching Policy and Procedures. With care and precise planning, you can operate equipment and tools safely around these potentially lethal power lines. . The drain model of the MOSFET is the output High voltage transmission switchgear often contains hundreds of kilograms (kgs) of SF 6. Perform HV field switching operation to a given schedule. The substations these are in should be locked or access controlled from unqualified persons anyways. HV & LV procedures are basically the same. The purpose of the PPA High Voltage Access Procedure is to ensure the safety of all personnel on PPA sites from injury caused by exposure to High Voltage conductors. The emergence and 3. Duration 4 days Location Audits . The valves controlling the supply of air to the high voltage equipment shall be closed and locked by safety locks. UEPOPS124 - Perform switching to a switching program . Interlock: A safety circuit designed to prevent energizing high- or moderate-voltage . HIGH VOLTAGE ACCESS PERMIT RECEIVER COURSE. The basics of high voltage switching equipment in power substations and switchyards Circuit breakers are generally classified according to the interrupting medium used to cool and elongate the electrical arc permitting interruption. To view the document, click on the link below. High Voltage Switching is a virtual reality compatible, interactive 3D training module. Successful candidates will be trained and able to work as "authorising officers" within a team carrying out high voltage isolation and switching operations. At the Bus A VT Secondary terminal check the Voltage and Phase Rotation is correct. Procedures After all other risks have been mitigated by appropriate planning, failure to correctly follow instructions is one of the highest causes of system failures and incidents in HVIA. 10.2: Various changes. High Voltage Switching Procedure Procedure No. Take special care to safely de-energize and ground a circuit before working on it. A high voltage installation is a group of items of electrical equipment permanently connected and can be supplied with electricity from the works of an electricity entity or from a generating source at voltages greater than 1000V AC RMS or 1500V ripple-free DC. Preface On October 1, 1977, Public Law 95091 transferred the power marketing and transmission functions of the Bureau of Reclamation to the Department of Energy. This part is designed for workers who must work close to high-voltage equipment and . The procedures are designed to comply with Statutory Regulations and with PPA Health and Safety Standards. 10. UEPOPS021 - Control permit to work operations High Voltage Switching Training Course Content: Statutory compliance and Legislation. the circumstances involve high voltage electrical equipment; and (ii) despite the coming into existence of the circumstances, the person does not receive . In addition, they will understand the relevance of accidents statistics. Let V RM be the maximum permissible residual voltage for the complete unit. Also it will maintain the continuity of power supply and power quality to the industrial and commercial consumers. You should already have a interlock system in place to prevent operating this switch out of the proper sequence, regardless of the person being qualified or not. Normally low voltage system is common on board. HVTS's High Voltage Refresher Course is designed to refresh the participants' knowledge of operational practices and reinforce the skills required to perform electrical switching operations according to approved procedures. 9.5: Procedure for isolating and earthing circuits supplied by two- or three-position disconnectors - moved from PSSI 3 and updated. 4. 4.4 Authorised Electrical Persons Senior Authorized Electrical Person -SAEP An authorized electrical person who has been appointed in writing by the electrical discipline head to carry out high voltage and low voltage switching Voltages over approximately 50 volts can usually cause dangerous amounts of current to flow through a human being touching two points of a circuit An alternating current (ac) with a voltage potential greater than 550 V can puncture the skin and result in immediate contact with the inner body resistance. 2.1. . Contact Details Applicant title * Where the difference does occur is earthing arrangements for the conductors if physical contact is going to be made with them. 4.2 High Voltage Switching Operators 11 4.3 Switching Agreement 13 4.4 Basic Safety Requirements 13 5. 2.6. medium voltage switchgear. The High Voltage Switching Operations course has been developed by industry professionals with the experience and expertise to deliver the course in a way that provides participants with the competency to carry out high voltage switching activities safely. Producing a switching strategy for isolating components of a high voltage system; Selecting suitable apparatus for isolation and testing of high voltage equipment; Carrying out a switching and isolation procedure on a marine high voltage system, complete with safety documentation; and; Performing Insulation Resistance (IR) and Polarization . Re: High Voltage Switching Procedures. This standard is also applicable to switching devices having disconnecting and/or earthing functionalities apart from other functions, such as high-speed earthing switch, circuit-breaker and switch-disconnector. This course provides the practical skills and knowledge required to operate high voltage switchgear, perform switching to a switching program, write switching programs, control and coordinate isolation and access of local high voltage networks where multiple sources of supply can exist. The ratio V RM /V 1 = r, is defined as a multiplying factor of the rating for the residual voltage test, which depends on V 1.The " diverter " is said to pass the test, if High Current Impulse Test on Surge Arresters: This test is also done on pro-rated arrester units in the range of 3 to 12 kV. High Voltage switch gear, SF 6,Vacuum circuit breakers and contactors, construction, operation, maintenance and tests. The training module guides the trainee through the switching procedure for a 22KV switch, familiarising themselves with the equipment and its safety considerations. Participants are also taught switching theory and the . Develop high voltage switching schedule. 50 kV requires a spacing of at least 6.7 inches (171 mm) Allow a creepage distance of 1 inch (25.4 mm) for every 7,500 Volts for insulators placed in contact with high voltage points. 2. through Class C to the high efficiency classes where zero voltage switching is intended, like Class E. To get the proper phase relationship between drain current and voltage for these higher efficiency modes of operation, the phase of the load impedance will typically be positive. 2.6), the applicability of Eq.

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