DL/T 1338-2014Specification of real-time supervision and management information system for power generation enterprises (English PDF)

3.2 Supervisory information system for plant level; SIS

Realtime supervision and management information system that service for realtime

production process comprehensive optimization of the whole plant through production

process realtime/ historical data platform for thermal power plant.

[Definition 3.1 in DL/T 924-2005]

3.3

Function computer and client computer

Computers or servers with SIS application functions and management functions are called

function computers, including database servers, application software function computers

or servers, system backup servers, anti-virus servers, maintenance and management

computers, etc. Other computer working stations in the system are called client computers.

[Definition 3.2 in DL/T 924-2005]

4.1 The implementation of the system shall be able to be done step-by-step according to

the actual requirements and technology development plan-design. The system shall insist

on reliable, versatile and scalable principles.

4.2 The metrological unit shall comply with national standards and provisions for common

physical and legal metrological units. The data-marker design shall follow the

requirements of DL/T 950.

4.3 The data scale of realtime/historical database shall be determined according to

requirements of system construction and development. The collection content and

collection code of data shall be standardized and unified; the data information processing

shall be standardized and unified; the accuracy, comparability and maintainability of data

at measuring points shall be ensured; the function of checking the data quality shall be

provided to facilitate the check and maintenance of data.

hot plug/unplug redundant power supplies and hot-plug / unplug redundant fans.

Non-core switches can use parts according to the specific situation.

5.2.2 Database servers

Use redundant arrays of inexpensive disks shared by database servers; it can use

independent storage systems shared by networks. It can use database server systems

with redundancy configuration or fault tolerant database server systems. Database server

systems with redundancy configuration shall support the automatic failure switch-over

through cluster working mode.

5.2.3 Data source interface stations at power generation enterprises

5.2.3.1 Use redundancy mode; the caching of data shall be able to include at least

production process information within one week; Support the wake-one-LAN and be able

to send the data in buffer memory to the database server automatically when the network

communication returns to normal.

5.2.3.2 Remote communication shall be able to do with collection stations at power plants;

the unit running information shall be able to obtain from the collection stations at power

plants in real time.

5.2.4 Data collection stations at power plants

5.2.4.1 Use redundancy mode; the caching of data shall be able to include at least

production process information within one week; Support the wake-one-LAN and be able

to send the data to caching them in the database server automatically when the network

communication returns to normal.

5.2.4.2 Do not alter and configure the control internet under power plants, Do not control

the manufacturing process directly; it shall not affect the control function of the underlying

production control internet.

5.2.5 Function computers and client computers

Set different operations and system access limits according to the functions of the function

computer and client computer. Client computers shall only be equipped with basic

supervision and inquiry functions to production processes without system management

function.

5.2.6 Peripheral equipment

Configure systems and date backup equipment. Backup equipment can be magnetic tape

drive equipment or read / write light disk drive equipment. When conditions are ripe, it can

use magnetic tape backup systems or disk arrays.

5.2.7 Cabinets, cables and arrangement

5.2.7.1 Network backbone equipment and function computers shall be installed in

standard computer rooms; the rooms shall be taken with security measures preventing

non-system maintenance personnel from operating.

5.2.7.2 The protection grade of cabinet enclosure shall comply with requirements of grade

IP54 in GB 4208; the cabinet door shall be equipped with conductive door closing strip to

improve the anti-RF interference ability; heat dissipation space and air filter apparatus

shall be taken into account in cabinet arrangement. Temperature detection means shall be

installed in the cabinet, which can alarm automatically when the temperature is too high.

5.2.7.3 Terminal strips, cable clamps, cable troughs and wiring troughs equipped in

cabinet shall use products made from flame resistant materials. The fireproof

requirements of interconnection communication cables, signal cables, twisted pairs

(including contact pieces of two ends) between equipment and fireproof requirements and

others shall comply with...

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