UNLIMITED FREE ACCESS TO THE WORLD'S BEST IDEAS

close
Already an Engineering360 user? Log in.

This is embarrasing...

An error occurred while processing the form. Please try again in a few minutes.

Customize Your Engineering360 Experience

close
Privacy Policy

This is embarrasing...

An error occurred while processing the form. Please try again in a few minutes.

Webinars & White Papers

IEC 61325

Insulators for Overhead Lines with a Nominal Voltage Above 1 000 V - Ceramic or Glass Insulator Units for D.C. Systems - Definitions, Test Methods and Acceptance Criteria

active, Most Current
Buy Now
Organization: IEC
Publication Date: 1 March 1995
Status: active
Page Count: 96
ICS Code (Power transmission and distribution lines): 29.240.20
ICS Code (Insulators): 29.080.10
scope:

This International Standard is applicable to string insulator units of ceramic 'material or glass for use on d.c. overhead power lines with a nominal voltage greater than 1 000 V.

It is not applicable to composite insulators.

The application of this standard to insulators for use in other situations under d.c. voltage will be left to the relevant technical committees.

This standard specifies:

- the characteristics of insulators;

- the conditions under which the specified values of these characteristics shall be verified;

- acceptance criteria.

It specifies basic characteristic tests in a manner similar to that of IEC 383-1. Certain additional tests have been found to be necessary to ensure satisfactory long-term performance of d.c. insulators. At present, these additional tests concern only cap and pin insulators.

In view of the lack of significant performance data regarding long rod insulators on d.c. lines, it is not possible at present to define or validate special d.c.-oriented tests for such insulators.

This standard does not include requirements, or special tests, dealing with the choice of insulators for specific operating conditions (e.g. ageing arising from specific operating conditions).

NOTES

1 This standard does not include radio interference tests, artificial pollution tests or tests on insulator sets. These subjects and some relevant test methods are dealt with in the following IEC Publications: IEC 383-2, IEC 437 and IEC 1245.

2 Many of the requirements and tests in this standard are relevant to insulators for use on d.c. traction lines, but other tests may be required. Reference can be made to IEC 383-1.

Document History

IEC 61325
March 1, 1995
Insulators for Overhead Lines with a Nominal Voltage Above 1 000 V - Ceramic or Glass Insulator Units for D.C. Systems - Definitions, Test Methods and Acceptance Criteria
This International Standard is applicable to string insulator units of ceramic 'material or glass for use on d.c. overhead power lines with a nominal voltage greater than 1 000 V. It is not...

References

Advertisement