DL/T 5707-2024 in English
VALIDGuidelines for fireproofing and plugging construction technology of power engineering cables
- Issued on:2024-05-24
- Implemented on:2024-11-24
- File Format:PDF
- Delivery:Via email within 9 business days
Price(USD)：
$1,499.00
$1,455.00
$1,455.00
| Standard No: | DL/T 5707-2024 |
| Document status: | VALID |
| Title in English: | Guidelines for fireproofing and plugging construction technology of power engineering cables |
| Title in Chinese: | 电力工程电缆防火封堵施工工艺导则 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 9 business days |
| Issued on: | 2024-05-24 |
| Implemented on: | 2024-11-24 |
| ICS Classification: | 29.060.01-Electrical wires and cables in general |
| Chinese Classification: | K13-Cable and its accessory |
| Professional Classification: | DL-Electricity |
| Related Keywords: | power engineering cables introduction key points
cable wall plugging nuclear power projects power new wind key construction |
Introduction
Key points of the core revision of the standard
| Revision dimensions | 2014 version | 2024 version |
|---|---|---|
| Scope of application | Thermal power/hydropower/nuclear power | New wind power/photovoltaic projects |
| Material environmental protection requirements | Undefined | Increase the limit of toxic components (GB/T20285 ZA1 grade) |
| Typical process | Allow fireproof composite panels to be used alone | Cancel this process |
Analysis of key construction processes
1. Cable wall plugging
When using fire-blocking modules, staggered masonry is required between layers. Self-adhesive modules do not require adhesives. Compared with non-self-adhesive modules:
- Gap treatment: Both need to be filled with flexible organic plugging materials ≥20mm
- Nuclear power projects: The spacing of shaft plugging is adjusted from 7m to 6m
2. Cable tray plugging
Key points for the construction of fire-resistant partitions + fire-blocking bags:
- The cross-stacking length of fire-blocking bags is ≥300mm
- The layers between multi-layer bridges must be tightly sealed
- The length of cable fire retardant paint is ≥2m
Special requirements for new energy projects
Offshore booster station: The building structure needs to have a prefabricated cable hole frame, and the sealing components must have water-resistant and pressure-bearing performance
Photovoltaic power station: The distance between cable trench firewalls is ≤200m, which is stricter than that of conventional power stations (100m)
Sample only — not a preview of DL/T 5707-2024
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