DL/T 1000.3-2015: Application guide of insulators for overhand lines with a nominal voltage over 1000V - Part 3: Composite insulator for a.c. system

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Scope

This Part specifies the general technical requirements, selection principles, inspection,
storage and transportation, acceptance and installation, daily inspection and
maintenance, technical management of rod-shaped suspension composite insulators for
AC overhead lines, which have a nominal voltage higher than 1000 V.
This Part applies to composite insulators (referred to as composite insulators) for AC
overhead power lines, which have a nominal voltage higher than 1000 V and a
frequency of 50 Hz, as well as power plants and substations. The installation site is
below 1000 m above sea level; the ambient temperature is between -40 °C ~ +40 °C.
This Part includes requirements for selecting composite insulators according to specific
operating conditions.

Basic Data

Standard ID	DL/T 1000.3-2015 (DL/T1000.3-2015)
Description (Translated English)	Application guide of insulators for overhand lines with a nominal voltage over 1000V - Part 3: Composite insulator for a.c. system
Sector / Industry	Electricity and Power Industry Standard (Recommended)
Classification of Chinese Standard	K48
Classification of International Standard	29.020
Word Count Estimation	17,154
Date of Issue	2015-07-01
Date of Implementation	2015-12-01
Older Standard (superseded by this standard)	DL/T 864-2004
Quoted Standard	GB 311.1; GB/T 311.2; GB/T 4585; GB/T 19519; GB/T 21421.1; GB/T 21421.2; GB/T 26218.1; GB/T 26218.2; GB 50545; DL/T 368; DL/T 376; DL/T 741; DL/T 859; DL/T 1122; DL/T 1474; JB/T 11219.1
Regulation (derived from)	Energy Administration Announcement 2015 No.4
Issuing agency(ies)	National Energy Administration
Summary	This standard specifies the general technical requirements, selection principles, inspection, storage and transportation, acceptance and installation, routine inspection and maintenance, and technical management for the use of rod-shaped composite insulators with a nominal voltage higher than 1000 V for overhead lines. This standard applies to the nominal voltage higher than 1000V, the frequency of 50Hz AC overhead power lines and power plants, substations with composite insulators (referred to as composite insulators). Installation location of the altitude of 1000m below the ambient temperature between -0 �� ~ +40 ��. This standard includes requirements for the selection of composite insulators under specific operating conditions.