IS 5571 PDF


IS Guide for Selection and installation of Electrical Equipment for Hazardous Areas (other than mines). byBureau of Indian Standards. IS (): Guide for Selection and installation of. Electrical Equipment for Hazardous Areas (other than mines). [ETD Electrical Apparatus for Explosive . Method Statement for Installation of Cables, Wires & the selection of electrical equipment has been based on the classification of hazardous areas given in IS This standard is intended to provide guidance for selection of electrical equipment for use in.

Is 5571 Pdf

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FA series. Low Standby Power Quasi-Resonant Controller. □ Features. ・ Internal V high voltage startup current source. ・Realized less than 1W input at. IS Indian Standard. GUIDE FOR SELECTION AND INSTALLATION OF. ELECTRICAL EQUIPMENT IN HAZARDOUS. AREAS (OTHER THAN. IS (pdf), , Code of practice for installation and IS (pdf) · IS (txt), , Guide for Selection and installation of Electrical.

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Home Set primary menu. Download free Heath Zenith user manuals, owners manuals, instructions, warranties and installation guides, etc. Made available to the public under the provisions of the Bureau of Indian Standards Act of and the Right to Information Act of In order to promote public education and public safety, equal justice for all, a better informed citizenry, the rule of law, world trade and world peace, this legal document is hereby made available on a noncommercial basis, as it is the right of all humans to know and speak the laws that govern them.

Division Name: Electrotechnical Section Name: Last Updated: IS pdf IS txt. Classification of hazardous areas other than mines having flammable gases and vapours for electrical installation. Classification of flammable gases or vapours with air according to their maximum experimental safe gaps and minimum igniting currents. Guide for construction and use of rooms or buildings protected by pressurization for installation of electrical apparatus for explosive gas atmospheres.

General Recommendations. General and Testing Requirements. Electrical apparatus for explosive gas atmospheres, Part Enclosures made of plastic material shall be dimensionally stable for the storage and service condhions. Title Part 1: For working voltages up to and including 1 V For working voltages from 3.

Part 1 General recommendations 7. Part 1 General guidelines for aging procedures and evaluation of test results Classification of flammable gases or vapours with air according to their maximum experimental safe gaps and minimum igniting currents General requirements for electrical apparatus for explosive gas atmospheres Code of practice for the selection. B-n Intakeandexhaust system design shall meet the following minimum requirements: Where valve spindles pass through the walls of any component of the induction system.

B-5 To prevent flashback through induction system. B An engine having a crankcase volume of over 0. B-1 The starter shall be either of flameproof electrical type usually operated from the mains supply or of the following non-electric types: Spring recoil. B The fuel injection pump and governor. In some situations cooling of the exhaust manifold and piping maybe necessary. B-9 A system using an alarm or trip device to protect the engine from excessive vibration should be considered.

Relief valves or breathers on engines shall be fitted with flame traps or discharge into the induction system downstream of the flame trap. Electrical equipment shall be effectively earthed and bonded.

B-3 All belts shall be of antistatic fire resistant type.

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B-8 Alarms or automatic shutdown devices shall be provided. B-7 To prevent overspeeding of the engine due to induction of flammable gases or vapours. B-4 In order to contain discharge of sparks or flames from the exhaust system.

Any other electrical equipment associated with the engine shall be flameproof. The diametrical clearance shall not exceed 0. C-4 The exterior of the cells shall-be so constructed as to resist impact and the cell cases shall be firmly fixed. C-8 The cover of the battery case shall have special fastenings.

C-7 The metallic cover of the battery case shall be lined with materials resistant to electrolyte. In these cases.

The creepage distance between two poles of adjacent cells shall not be less than 35 mm. C-5 The cells shall be so built into the containers that loose working of connection of the cells with one another is impossible and normally a discharge voltage exceeding 24 volts shall not appear between adjacent rows of cells. C-1 Celluloid and similar combustibles shall not be trsed as constructional materials.

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C-2 Battery containers as well as fittings and insulating parts outside the enclosed cells shall not consist of porous materials. C-6 The battery case shall be so constructed as to ensure sufficient ventilation in order to prevent accumulation of gases given off from the battery and the free space within the case shall be as small as possible. NOTE — Charging of storage batteries shatl be conducted in non.

Where voltage of batteries is not less than 50 volts. C-3 Openings of cells necessary for the escape of the gases given off shall be so constructed as to prevent splashing of the electrolyte.

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C-9 Exposed live parts of battery contained in a case shall be protected with rubber or equivalent insulating materials. Where the discharge voltage exceeds 24 volts. These shall meet the following requirements. Enquiries relating to copyright be addressed to the Director Publications. E9 MIDC. Rwiew of Indian Standards Amendments are issued to standards as the need arises on the basis of comments.

SCO ET 22 New Delh. Manak Bhavan. This Indian Standard has been developed from Doc: Printed at: Frahhat Offset Press.

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IV -Cross Road. Standards are also reviewed periodically. New Delhi Telephones: No part of these publications may be reproduced in any form without the prior permission in writing of BE3. This does not preclude the free use. Copyright BIS has the copyright of all its publications.

Scheme VII M. Sector A.Jump to Page. In locations where personnel maybe exposed to potentially toxic concentrations of combustible materials. The conductors precautions should.

NOTES 1 Motors intended for use in hazardous areas wbicb are to be supplied at varying frequency and voltage by a converter sh. MD Parthi.

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