OS GSO 903:1997
IEC 60273:1990
Omani Standard
Current Edition
·
Approved on
15 October 1997
CHARACTERISTICS OF INDOOR AND OUTDOOR POST INSULATORS FOR SYSTEMS WITH NOMINAL VOLTAGES GREATER THAN 1000 V
OS GSO 903:1997 Files
Arabic
46 Pages
Current Edition
25.0 OMR
English
34 Pages
Current Edition
Reference Language
21.0 OMR
OS GSO 903:1997 Scope
This standard is applies to post insulators and post insulator units of ceramic material intended for indoor service in electrical installations or equipment operating on alternating current systems with a nominal voltage greater than 1000 V and a frequency not greater than 100 Hz. It may also be regarded as a provisional standard for insulators for use on direct current systems.
Best Sellers From Construction and Building Sector
GSO 1431:2002
Gulf Technical Regulation
Sanitary appliances - pressurized flushing devices
OS GSO 1431:2002
GSO 1431:2002
Omani Standard
Sanitary appliances - pressurized flushing devices
GSO 1427:2008
Gulf Standard
Ceramic Sanitary Appliances - Western Water Closets
OS GSO 1427:2008
GSO 1427:2008
Omani Standard
Ceramic Sanitary Appliances - Western Water Closets
Recently Published from Construction and Building Sector
OS 1657:2025
Omani Standard
Omani Sarooj
GSO ISO 16220:2024
ISO 16220:2017
Gulf Standard
Magnesium and magnesium alloys — Magnesium alloy ingots and castings
GSO ISO 6076:2024
ISO 6076:2023
Gulf Standard
Adhesives — Installation of floor coverings, wood flooring, levelling compounds and tiles — Specification of trowel notch sizes
GSO ISO 10545-20:2024
ISO 10545-20:2022
Gulf Standard
Ceramic tiles
— Part 20: Determination of deflection of ceramic tiles for calculating their radius of curvature