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Oman Electrical Standards

Guidelines for Product Approval - February 1999
OES 1 Second Edition January 1995
OES 2 – STANDARD CABLES AND ACCESSORIES 3RD EDITION – REV. 0 (2010)
OES 3
OES 4 Second Edition May 1989
General Derogation OES 4 clause 6.5 -use of PVC conduits
OES 5, 5A & 6 Second Edition January 1995
OES 7, 21A, B & C 22A, B & C, 23, 28 & 31 Second Edition January 1995
OES 8,9,10,16A & B, 17,18,20,25A, B, C & D, 26A, B, C & D, 29 & 33 Second Edition January 1995
OES 11 Second Edition January 1995
OES 21A, 12B, 13, 14, 15, 19, 34 & 35 Second Edition January 1995
OES 24 First Edition May 1991
OES 27 Volume 1 First Edition July 1991
OES 27 Volume 2
OES 30 First Edition May 1991
OES 32 First Edition January 1995
OES 36 for Indoor Substations (Notes of Guidance)
OES 36 for Indoor substations
OES 37 Dry Type Transformer
STANDARD: OES-22D SINGLE PHASE KILOWATT-HOUR DIGITAL METERS DIRECTLY CONNECTED FOR SERVICE CONNECTIONS
STANDARD: OES-22E THREE PHASE KILOWATT-HOUR DIGITAL METERS DIRECTLY CONNECTED FOR SERVICE CONNECTIONS
STANDARD: OES-22F THREE PHASE KILOWATT-HOUR DIGITAL METERS, CURRENT TRANSFORMER OPERATED, CONNECTED FOR SERVICE CONNECTIONS