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Liquid‑Tight Flexible Metal Conduit
- Description Breakdown (Matches Model LTGCS02B‑L)
| Description | ความหมาย | Details | Corresponding Model Code |
| LFMC | Product type | Liquidight Flexible Metal Conduit | LTGC = Liquidight Galvanized Conduit |
| GP | Application grade | General Purpose, standard industrial environment | S = Standard |
| ซีเอสเอ | Certification | CSA certified to CSA C22.2 No.56 | Core certification of LTGC series |
| HD | Performance grade | Heavy Duty, higher mechanical strength | Heavyuty reinforced design |
| 1-2 | Size | 1/2″ (12.7 มม) trade size | 02 = 1/2″ |
| BLK | Jacket color | Black PVC jacket | B = Black |
| 300M/1000FT | Package length | 300 เมตร / 1000 feet per reel | L = 1000 ft |
Full model match: This description fully corresponds to ABB LTGCS02B‑L.
- Core Technical Specifications
2.1 Basic Specifications
| Item | ค่า | หมายเหตุ |
| พิมพ์ | Liquid‑tight flexible metal conduit | Galvanized steel inner strip, smooth black PVC outer jacket |
| Trade size | 1/2″ (12.7 มม) | CSA standard, compatible with ABB 52/53 series fittings |
| Length | 300 m / 1000 ft | Bulk reel, reduces joints and leakage risk |
| Inner diameter | 15.8 มม (0.622 in) | Suitable for control and power cables |
| Outer diameter | 21.2 มม (0.835 in) | Standard industrial size |
| Min. bending radius | 84 มม (3.3 in) | No damage at room temperature |
| น้ำหนัก | ประมาณ. 1.2 kg/m | Total approx. 360 kg/reel |
| การป้องกัน | IP67 (with proper fittings) | Dust‑tight & liquid‑tight |
| Operating temp | -40 ~ +75 °C (dry) | Wide industrial temperature range |
| -30 ~ +60 °C (wet) |
2.2 วัสดุ & Performance (Heavy‑Duty HD)
| Item | ค่า | มาตรฐาน | HD Feature |
| Inner core | Hot‑dipped galvanized steel | ASTM A653 | Thicker strip, higher tensile strength |
| Outer jacket | Flexible PVC | RoHS, oil & chemical resistant | Thicker, more wear‑resistant |
| Tensile strength | ≥ 1500 เอ็น | Exceeds standard type (1200 เอ็น) | Heavy‑duty tensile resistance |
| Compressive strength | ≥ 600 N/cm² | Exceeds standard type (500 N/cm²) | Better anti‑crush performance |
| Flame rating | VW‑1 / FT4 | แอล / ซีเอสเอ | Passes strict vertical burn test |
| การรับรอง | CSA LR‑72635, ไออีซี 61386, RoHS | Global approvals | HD includes extra mechanical tests |
- การใช้งานทั่วไป
| Industry | Application | HD Advantage | ตัวอย่าง |
| Industrial automation | PLC cabinet to field wiring | Vibration & mechanical damage resistant | Sensors, actuators, machinery |
| Building electrical | Fire, security, HVAC | Fewer joints, higher reliability | Building control systems |
| Food & beverage | Washdown areas | IP67, black jacket, easy to clean | Filling, cleaning, pasteurizing lines |
| Petrochemical | Non‑hazardous areas | Corrosion resistant, heavy‑duty | Pumps, คอมเพรสเซอร์, valves |
| Water treatment | Pump stations, wet areas | Excellent liquid tightness | Submersible pumps, level sensors |
| Transportation | Tunnels, bridges, metro | Shock & vibration resistant | Signaling, ventilation, monitoring |
- Installation Guidelines
4.1 ขั้นตอนการติดตั้ง
- Preparation
Measure route, reserve 15% extra length
Use proper cutter, bender, และ 52/53 series HD fittings
- Cutting & bending
Cut squarely with special conduit cutter
Bend slowly, min. bending radius ≥ 84 มม
Support every ≤ 3 m, add supports at bends
- Fitting installation
Strip ~15 mm jacket to expose steel core
Insert into fitting and twist to lock
Tighten nut fully for liquid‑tight seal
- Fixing & cabling
Heavy‑duty clamps, spacing ≤ 1.2 m
Leave 50 mm expansion gap at equipment
Clean interior before pulling cables
4.2 Safety Rules
Ground conduit properly, grounding resistance ≤ 10 โอ้
Keep ≥ 150 mm from heat sources
Use protective sleeves when passing through walls/floors
For Zone 2 hazardous areas, use explosion‑proof fittings
- Replacement Models
5.1 ABB Same‑Series Alternatives
| แบบอย่าง | Difference | Application | Match |
| LTGCS02B‑C | 30 m / 100 ft | Small projects | ★★★★★ |
| LTGCS02B‑K | 150 m / 500 ft | Medium projects | ★★★★★ |
| LTGCU02B‑L | With bonding wire | Requires continuous grounding | ★★★★☆ |
| LTGCS01B‑L | 3/8″ ขนาด | Few cables, limited space | ★★★☆☆ |
| LTGCS03B‑L | 3/4″ ขนาด | More/larger cables | ★★★☆☆ |
| LTGCS02G‑L | Gray jacket | Standard industrial | ★★★★☆ |
5.2 Cross‑Brand Equivalents
| ยี่ห้อ | แบบอย่าง | Match | คุณสมบัติ |
| Thomas & Betts | LTC02500 | ★★★★★ | Same ABB group, fully compatible |
| Hubbell | HBLT02HD | ★★★★ | UL/CSA certified, 1/2″ HD |
| Legrand | LTC12HD | ★★★★ | IP68, European standard |
| ภายในประเทศ | FST‑LT02HD | ★★★☆ | Cost‑effective, GB standard |
- Maintenance & การแก้ไขปัญหา
6.1 Maintenance Schedule
| Interval | Item | มาตรฐาน |
| Every 2 เดือน | Visual inspection | No cracks, damage, or looseness |
| Quarterly | Continuity test | Grounding resistance ≤ 10 โอ้ |
| Every 6 เดือน | Leakage test | 0.2 MPa, 5 min, no leakage |
| Every 1.5 ปี | Aging evaluation | No jacket cracking, no rust |
6.2 Common Faults & โซลูชั่น
| Symptom | Cause | Priority | Solution |
| Steel core deformation | Over‑bending, crushing | สูง | Replace damaged section, add protection |
| Jacket cracking | High temp, UV, chemicals | ปานกลาง | Replace, use sun/chemical protection |
| Loose fittings | Vibration, insufficient torque | สูง | Retighten, use lock washers |
- สรุป
ABB LFMC GP CSA HD 1/2 BLK 300M/1000FT (LTGCS02B‑L) is a heavy‑duty, liquid‑tight flexible metal conduit:
HD grade: Higher mechanical strength for demanding environments
300 m bulk reel: Lower cost, fewer joints, higher reliability
ซีเอสเอ & IP67: Global certification, suitable for wet/washdown areas
Black PVC jacket: Durable, clean, industrial appearance
Recommendations:
Use for large industrial projects: automotive, machinery, processing lines
Pair with ABB 52/53 series heavy‑duty fittings for best performance
For continuous grounding: use LTGCU02B‑L with bonding wire
