GB/T 40862-2021Guide for reliability evaluation indices of operational transmission and transformation installation (English PDF)
输变电设施运行可靠性评价指标导则
This is a limited preview
Buy now to download the full PDF (19 pages)
Need quotation for your management?
Get a formal quotation for GB/T 40862-2021 in 30 minutes.
Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
October 11, 2021
Implementation date
May 1, 2022
Scope
GB/T 40862-2021 is the English-translated version of 输变电设施运行可靠性评价指标导则.
GB/T 40862-2021 is a guide to the indices used to evaluate the operational reliability of power transmission and transformation installations in the power system.
It defines the objects of evaluation and classifies their states, from the active state to the available, in-service and reserve shutdown states, including dispatching reserve shutdown.
On that basis it sets three families of indices: count indices, such as total and average number of times; time indices, such as accumulated and average duration; and proportional indices, such as the accumulated time ratio of each state and the exposure factor.
It closes with the calculation steps and methods; informative annexes list the evaluation objects and give worked examples. It is meant for evaluating facilities in operation on the power system. It was issued on 11 October 2021 and has applied since 1 May 2022.
Found what you need?
Document preview — GB/T 40862-2021
National Standard of the People's Republic of China
- ICS
- 29.240.01
- Classification
- K 04
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- Foreword
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
- 4 Evaluation object and status classification
- 4.1 Evaluation object
- 4.2 Status classification
- 5 Times index
- 5.1 Order index system
- 5.2 Total times
- 5.3 Average number of times
- 6 Time category indicators
- 6.1 Time index system
- 6.2 Accumulation time
- 6.3 Average duration
- 7 Proportional indicators
- 7.1 Proportional index system
- 7.2 Accumulated time ratio of use status
- 7.3 Exposure factor
- 8 Index calculation
- 8.1 Calculation step
- 8.2 Calculation method
- Appendix A (informative) Operational reliability evaluation objects of power transmission and transformation facilities
- Appendix B (informative) Calculation examples of commonly used indicators
- Reference
Foreword
This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1: Structure and Drafting Rules of Standardization Documents" Drafting.
1 Scope
This document specifies the evaluation objects, status classification, evaluation indicators and calculations of the operation reliability of power transmission and transformation facilities.
This document is applicable to the evaluation of the operational reliability of power transmission and transformation facilities in the power system.
2 Normative references
There are no normative references in this document.
3 Terms and definitions
The following terms and definitions apply to this document.
3.1 Transmission and transformation installation
An electrical appliance or a group of interrelated electrical appliances installed at a given location or path to realize the transmission, transformation and distribution of electric energy.
Note: In this document, power transmission and transformation facilities include the power transmission and transformation equipment itself that realizes specific functions, as well as the support and connection accessories that make the equipment operate well, etc. appliance. [Source: GB/T 2900.1-2008, 3.3.24, with modification]
3.2 Active state
The state of operation and maintenance of power transmission and transformation facilities handed over to the user.
3.2.1 Available state
The state in which the power transmission and transformation facilities can complete the prescribed functions. [Source: GB/T 2900.99-2016, 192-02-01, with modification]
3.2.1.1 Running state
The state of power transmission and transformation facilities performing prescribed functions. [Source: GB/T 2900.99-2016, 192-02-04, with modification]
3.2.1.2 Reserve shutdown state
The power transmission and transformation facilities are available, but they are not in a state where the required functions are fulfilled.
3.2.1.2.1 Dispatching reserve shutdown state
Due to the needs of the grid operation mode, the power transmission and transformation facilities are in a standby state.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 19 pages — is available in the English PDF.
Similar standards
How to Download GB/T 40862-2021
- 1
Add to cart
Click "Download PDF" on this page and choose "Buy this standard". You can add more standards before checkout.
- 2
Checkout
Enter your email and billing details. Payment is processed securely by Stripe (cards or bank transfer). Prefer bank details? Request a quotation (min. order $300).
- 3
Instant delivery (0–9 sec)
Delivery is automatic: within seconds of payment you'll receive an email with a secure download link. The link stays valid for 72 hours.
- 4
Invoice included
A tax invoice is attached to the confirmation email. Need a custom invoice? Contact us.
Related Standards
GB/T 10003-2026 — Biaxially oriented polypropylene (BOPP) film
GB/T 10004-2026 — Plastic/Plastic laminated films and pouches for packaging
GB/T 10007-2026 — Rigid cellular plastics - Determination of shear properties
Secure payment via Stripe
Payments accepted
GB/T 40862-2021
$330.00