Fire Resistant Cable Standard
What is BS7629-1 Cable? Fire Resistant Cable Standard 什麼是BS7629-1電纜？耐火電纜標準
A comprehensive technical guide to British Standard BS7629-1 fire resistant screened cables for emergency lighting, fire alarm, and fire detection systems.
英國標準BS7629-1耐火屏蔽電纜技術全面指南，用於應急照明、火災報警和火災探測系統。
Introduction to BS7629-1 Standard BS7629-1 標準介紹
British Standard BS7629-1 specifies the requirements for fire resistant screened cables with low smoke and corrosive gas emissions and a voltage rating of 300/500V for fixed installation. These cables are designed to maintain circuit integrity under the effects of fire, mechanical shock, and water for a prescribed period of time, supporting fire-fighting efforts and protecting lives and essential equipment.
英國標準BS7629-1規定了額定電壓為300/500V、用於固定安裝的低煙低腐蝕性氣體排放耐火屏蔽電纜的要求。這些電纜設計用於在火災、機械衝擊和水的影響下保持一段規定時間的電路完整性，支持消防工作並保護生命和重要設備。
Cables meeting BS7629-1 requirements have their primary function for use in emergency lighting, fire alarm circuits, and fire detection systems. All cables manufactured to this standard include Low Smoke Zero Halogen (LSZH) insulation and sheathing that meets BS EN 60754, ensuring the level of hydrochloric gases emitted during fire does not exceed 0.5%.
符合BS7629-1要求的電纜主要用於應急照明、火災報警電路和火災探測系統。按照該標準製造的所有電纜均包含符合BS EN 60754的低煙零鹵素（LSZH）絕緣和護套，確保火災期間排放的氯化氫氣體水平不超過0.5%。
Standard vs Enhanced Fire Resistant Grades 標準級與增強級耐火等級
Standard Fire Resistant Cable
Insulation: High performance fire resistant silicone rubber
Application: General use in fire detection, fire alarm, voice alarm, and emergency lighting circuits
Fire Rating: 30-120 minutes survival under BS EN 50200 + Annex E
標準耐火電纜：高性能耐火矽橡膠絕緣。適用於火災探測、火災報警、語音報警和應急照明電路的一般使用。
Enhanced Fire Resistant Cable
Insulation: Mica/Glass fire resistant tape covered by high performance silicone rubber
Application: Building types where cables might need to operate correctly during fire for extended periods (tower blocks, multi-storey buildings)
Fire Rating: 120 minutes survival under BS EN 50200 + BS 8434-2
增強耐火電纜：雲母/玻璃耐火帶覆蓋高性能矽橡膠絕緣。適用於需要電纜在火災期間長時間正常運行的建築類型（高層建築、多層建築）。
Fire Resistance Test Requirements | 耐火測試要求
| Category類別 | Test Standard測試標準 | Duration持續時間 | Additional Requirement附加要求 |
|---|---|---|---|
| STANDARD 30 | BS EN 50200 | 30 minutes | BS EN 50200 Annex E (30 min) |
| STANDARD 60 | BS EN 50200 | 60 minutes | BS EN 50200 Annex E (60 min) |
| ENHANCED 120 | BS EN 50200 | 120 minutes | BS 8434-2 (120 min) |
BS7629-1 Cable Construction BS7629-1 電纜結構
Construction Layers 結構層
| Component組件 | Standard Grade標準級 | Enhanced Grade增強級 |
|---|---|---|
| Conductor (1.5-2.5mm²) | Class 1 Solid Copper | Class 1 Solid Copper |
| Conductor (4mm² and above) | Class 2 Stranded Copper | Class 2 Stranded Copper |
| Insulation | 絕緣 | High performance fire resistant silicone rubber | Mica/Glass tape + fire resistant silicone rubber |
| Overall Screen | 總屏蔽 | Al/PET (Aluminium/Polyester Tape) | Al/PET (Aluminium/Polyester Tape) |
| CPC | 保護導體 | Tinned copper (bare earth) | Tinned copper (bare earth) |
| Outer Sheath | 外護套 | LSZH (Low Smoke Zero Halogen) | LSZH (Low Smoke Zero Halogen) |
Core Identification 芯線識別
2 Core 2芯
3 Core 3芯
4 Core 4芯
Sheath Colours 護套顏色
Standard Fire Resistant Cable Dimensions 標準耐火電纜尺寸
| Cores芯數 | CSA (mm²)截面積 | Earth Wire (n°/mm)接地線 | OD (mm)外徑 | Weight (kg/km)重量 |
|---|---|---|---|---|
| 2 | 1.5 | 1/1.38 | 8 | 95 |
| 2 | 2.5 | 1/1.75 | 9.4 | 130 |
| 2 | 4 | 7/0.85 | 11.5 | 200 |
| 3 | 1.5 | 1/1.38 | 8.5 | 115 |
| 3 | 2.5 | 1/1.75 | 10 | 170 |
| 3 | 4 | 7/0.85 | 12.2 | 260 |
| 4 | 1.5 | 1/1.38 | 9.4 | 140 |
| 4 | 2.5 | 1/1.75 | 11 | 210 |
| 4 | 4 | 7/0.85 | 13.5 | 330 |
Enhanced Fire Resistant Cable Dimensions 增強耐火電纜尺寸
| Cores芯數 | CSA (mm²)截面積 | Earth Wire (n°/mm)接地線 | OD (mm)外徑 | Weight (kg/km)重量 |
|---|---|---|---|---|
| 2 | 1.5 | 1/1.38 | 8.8 | 105 |
| 2 | 2.5 | 1/1.75 | 10.2 | 150 |
| 2 | 4 | 7/0.85 | 12.2 | 220 |
| 3 | 1.5 | 1/1.38 | 9.3 | 130 |
| 3 | 2.5 | 1/1.75 | 10.8 | 190 |
| 3 | 4 | 7/0.85 | 13 | 280 |
| 4 | 1.5 | 1/1.38 | 10.3 | 165 |
| 4 | 2.5 | 1/1.38 | 12 | 240 |
| 4 | 4 | 7/0.85 | 14.4 | 350 |
Enhanced cables have slightly larger diameters due to mica/glass tape fire barrier layer. | 增強電纜因雲母/玻璃帶耐火阻隔層而外徑稍大。
Electrical Characteristics 電氣特性
Conductor Resistance & Insulation Properties 導體電阻和絕緣特性
| CSA (mm²)截面積 | Conductor Resistance @20°C (Ω/km)導體電阻 | Insulation Resistance @20°C (MΩ×km)絕緣電阻 | Capacitance Core/Core (pF/m)電容 芯/芯 | Capacitance Core/Screen (pF/m)電容 芯/屏蔽 |
|---|---|---|---|---|
| 1 | 18.1 | 300 | 100 | 170 |
| 1.5 | 12.1 | 300 | 110 | 190 |
| 2.5 | 7.41 | 300 | 130 | 220 |
| 4 | 4.61 | 300 | 160 | 270 |
Current Carrying Capacity 載流量
| CSA (mm²)截面積 | Clipped Direct (A)直接夾固 | In Conduit/Tray (A)導管/托盤 | ||
|---|---|---|---|---|
| 2 Core2芯 | 3/4 Core3/4芯 | 2 Core2芯 | 3/4 Core3/4芯 | |
| 1 | 19 | 17 | 17 | 15 |
| 1.5 | 24 | 22 | 22 | 19.5 |
| 2.5 | 33 | 30 | 30 | 26 |
| 4 | 45 | 40 | 40 | 35 |
Voltage Drop 電壓降
| CSA (mm²)截面積 | 2 Core (mV/A/m)2芯 | 3/4 Core (mV/A/m)3/4芯 |
|---|---|---|
| 1 | 45 | 39 |
| 1.5 | 30 | 26 |
| 2.5 | 18 | 15 |
| 4 | 11 | 10 |
Temperature De-rating Factors 溫度降額係數
| Ambient Temperature環境溫度 | 25°C | 30°C | 35°C | 40°C | 45°C | 50°C | 55°C | 60°C | 65°C |
|---|---|---|---|---|---|---|---|---|---|
| De-rating Factor 降額係數 | 1.04 | 1.00 | 0.95 | 0.90 | 0.85 | 0.80 | 0.74 | 0.67 | 0.60 |
Applicable Standards & Certifications 適用標準與認證
Primary Standard 主要標準
BS 7629-1:2015+A1:2019
300/500V耐火屏蔽電纜
Fire Alarm Systems 火災報警系統
BS 5839-1 / BS 5839-9
建築物火災探測和報警系統
Emergency Lighting 應急照明
BS 5266-1:2016
場所應急照明規範
Fire Resistant Installation 耐火安裝
BS 8519:2020
生命安全和消防用耐火電力電纜系統
Fire Resistance Test 耐火測試
BS EN 50200 (PH30/PH60/PH120)
電路完整性耐火性測試
Enhanced Fire Test 增強耐火測試
BS 8434-2
增強耐火等級測試
Low Smoke Halogen Free 低煙無鹵
IEC/EN 60754-1/2, IEC/EN 61034-1/2
鹵素含量和煙霧密度測試
Flame Retardancy 阻燃性
EN 60332-1-2
單根電纜阻燃測試
Third-Party Certifications | 第三方認證
BASEC Approved: Tested and certified by the British Approvals Service for Cables. LPCB Certified: Certified by the Loss Prevention Certification Board for security and fire protection, listed in Red Book Live. These certifications ensure independent verification of cable performance and compliance with BS7629-1 requirements.
BASEC認證：經英國電纜認證服務機構測試和認證。LPCB認證：經損失預防認證委員會認證用於安全和消防保護，列入Red Book Live。這些認證確保對電纜性能和符合BS7629-1要求的獨立驗證。
Fire Safety Applications 消防安全應用
Emergency Lighting 應急照明
Exit signs, escape route lighting, standby illumination for evacuation.
出口標誌、逃生路線照明、疏散備用照明。
Fire Alarm Systems 火災報警系統
Fire detection circuits, manual call points, alarm sounders, and control panels.
火災探測電路、手動報警按鈕、報警聲響器和控制面板。
Voice Alarm Systems 語音報警系統
PA/VA systems for emergency announcements and evacuation instructions.
用於緊急公告和疏散指示的公共廣播/語音報警系統。
Fire Detection 火災探測
Smoke detectors, heat detectors, and aspirating detection systems.
煙霧探測器、熱探測器和吸氣式探測系統。
Shutdown Systems 停機系統
Emergency shutdown control circuits for critical equipment protection.
用於關鍵設備保護的緊急停機控制電路。
Fire Pumps 消防泵
Power supply circuits for firefighting water pumps and sprinkler systems.
消防水泵和噴淋系統的電源電路。
Gas Detection 氣體探測
Toxic and combustible gas detection systems in industrial facilities.
工業設施中的有毒和可燃氣體探測系統。
Safety Interlocks 安全聯鎖
Fire door release, damper control, and safety interlock circuits.
防火門釋放、風閥控制和安全聯鎖電路。
Building Type Selection Guide | 建築類型選擇指南
Standard Grade (PH30/PH60): Recommended for general use in buildings with single-phase evacuation requirements. Enhanced Grade (PH120): Recommended for tower blocks, multi-storey buildings, complex evacuation buildings, and applications where cables must operate correctly during fire for extended periods exceeding those normally required for single-phase evacuation.
標準級（PH30/PH60）：建議用於單階段疏散要求的建築物的一般使用。增強級（PH120）：建議用於高層建築、多層建築、複雜疏散建築，以及電纜在火災期間必須正常運行時間超過單階段疏散正常要求的應用。
Why Choose Anhui Feichun Special Cable 為什麼選擇安徽飞纯特种电缆
Anhui Feichun Special Cable Co., Ltd. is a professional manufacturer of fire resistant cables, fire alarm cables, and life safety cables compliant with BS7629-1 and international fire performance standards. Our technical team provides comprehensive support for cable selection, fire resistance grading, and project-specific compliance requirements.
安徽飞纯特种电缆有限公司是專業的耐火電纜、火災報警電纜和生命安全電纜製造商，符合BS7629-1和國際消防性能標準。我們的技術團隊為電纜選擇、耐火等級和項目特定合規要求提供全面支持。
Fire Safety Expertise 消防安全專長
Extensive experience supplying fire safety projects with compliant fire resistant cables.
為消防安全項目提供合規耐火電纜的豐富經驗。
Full Product Range 完整產品系列
Standard and Enhanced grades, 2-core to 19-core configurations, all CSA sizes.
標準級和增強級，2芯至19芯配置，所有截面積規格。
Quality Certification 質量認證
Products tested to BS7629-1, BS EN 50200, and international fire test standards.
產品經BS7629-1、BS EN 50200和國際消防測試標準測試。
Technical Support 技術支持
Engineering consultation for fire resistance grading and system design.
耐火等級和系統設計的工程諮詢。
Contact Our Fire Safety Cable Team | 聯繫我們的消防安全電纜團隊
For expert advice on BS7629-1 fire resistant cables and life safety cable solutions, contact our engineers:
如需BS7629-1耐火電纜和生命安全電纜解決方案的專業建議，請聯繫我們的工程師：
📧 Email: [email protected] | [email protected] | [email protected]
💬 WhatsApp: +86 13855123218
References & Further Reading | 參考文獻與延伸閱讀
Industry Resources:
• Feichun Cable – Fire Resistant & Safety Cable Solutions – Professional fire resistant cable and life safety cable manufacturer
• Reeling Cable Solutions – Expertise in industrial and specialty cables including fire resistant applications for critical infrastructure and safety systems
• Eland Cables – BS7629-1 Standard Reference – Technical specifications for fire resistant cables
• Batt Cables – BS7629-1 Fire Resistant Cable – Fire alarm and emergency lighting cable information
Note: BS7629-1 fire resistant cables are designed for life safety applications. Always consult qualified fire safety engineers and current building regulations for project-specific requirements. Installation should comply with BS 8519 and local fire safety codes.
備註：BS7629-1耐火電纜設計用於生命安全應用。請務必諮詢合格的消防安全工程師和現行建築法規以了解項目特定要求。安裝應符合BS 8519和當地消防安全規範。
