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Liquid‑Tight Flexible Metal Conduit
- Description Breakdown (Matches Model LTGCS02B‑L)
| 説明 | 意味 | 詳細 | Corresponding Model Code |
| LFMC | Product type | Liquidight Flexible Metal Conduit | LTGC = Liquidight Galvanized Conduit |
| GP | Application grade | General Purpose, standard industrial environment | S = Standard |
| CSA | 認証 | 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 | サイズ | 1/2″ (12.7 mm) trade size | 02 = 1/2″ |
| BLK | Jacket color | Black PVC jacket | B = Black |
| 300M/1000FT | Package length | 300 メートル / 1000 feet per reel | L = 1000 ft |
Full model match: This description fully corresponds to ABB LTGCS02B‑L.
- 主要な技術仕様
2.1 基本仕様
| アイテム | 価値 | 注意事項 |
| タイプ | Liquid‑tight flexible metal conduit | Galvanized steel inner strip, smooth black PVC outer jacket |
| Trade size | 1/2″ (12.7 mm) | CSA standard, compatible with ABB 52/53 series fittings |
| 長さ | 300 メートル / 1000 ft | Bulk reel, reduces joints and leakage risk |
| Inner diameter | 15.8 mm (0.622 で) | Suitable for control and power cables |
| Outer diameter | 21.2 mm (0.835 で) | Standard industrial size |
| 分. bending radius | 84 mm (3.3 で) | No damage at room temperature |
| 重さ | 約. 1.2 kg/m | Total approx. 360 kg/reel |
| 保護 | IP67 (with proper fittings) | Dust‑tight & liquid‑tight |
| Operating temp | -40 ～ +75 ℃ (ドライ) | Wide industrial temperature range |
| -30 ～ +60 ℃ (wet) |
2.2 材料 & Performance (Heavy‑Duty HD)
| アイテム | 価値 | 標準 | HD Feature |
| Inner core | Hot‑dipped galvanized steel | ASTM A653 | Thicker strip, higher tensile strength |
| Outer jacket | Flexible PVC | RoHS, 油 & chemical resistant | Thicker, more wear‑resistant |
| Tensile strength | ≥ 1500 N | Exceeds standard type (1200 N) | Heavy‑duty tensile resistance |
| Compressive strength | ≥ 600 N/cm² | Exceeds standard type (500 N/cm²) | Better anti‑crush performance |
| Flame rating | VW‑1 / FT4 | UL / CSA | Passes strict vertical burn test |
| 認証 | CSA LR‑72635, IEC 61386, RoHS | Global approvals | HD includes extra mechanical tests |
- 代表的な用途
| 業界 | 応用 | HD Advantage | 例 |
| 産業オートメーション | PLC cabinet to field wiring | 振動 & mechanical damage resistant | Sensors, actuators, 機械 |
| Building electrical | Fire, security, 空調設備 | Fewer joints, higher reliability | Building control systems |
| 食べ物 & beverage | Washdown areas | IP67, black jacket, easy to clean | 充填, cleaning, pasteurizing lines |
| Petrochemical | Non‑hazardous areas | Corrosion resistant, heavy‑duty | Pumps, コンプレッサー, 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 インストール手順
- 準備
Measure route, reserve 15% extra length
Use proper cutter, bender, そして 52/53 series HD fittings
- Cutting & bending
Cut squarely with special conduit cutter
Bend slowly, min. bending radius ≥ 84 mm
Support every ≤ 3 メートル, 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 メートル
Leave 50 mm expansion gap at equipment
Clean interior before pulling cables
4.2 Safety Rules
Ground conduit properly, grounding resistance ≤ 10 Ω
Keep ≥ 150 mm from heat sources
Use protective sleeves when passing through walls/floors
For Zone 2 hazardous areas, use explosion‑proof fittings
- 代替モデル
5.1 ABB Same‑Series Alternatives
| モデル | 違い | 応用 | Match |
| LTGCS02B‑C | 30 メートル / 100 ft | Small projects | ★★★★★ |
| LTGCS02B‑K | 150 メートル / 500 ft | Medium projects | ★★★★★ |
| LTGCU02B‑L | With bonding wire | Requires continuous grounding | ★★★★☆ |
| LTGCS01B‑L | 3/8″ size | Few cables, limited space | ★★★☆☆ |
| LTGCS03B‑L | 3/4″ size | More/larger cables | ★★★☆☆ |
| LTGCS02G‑L | Gray jacket | Standard industrial | ★★★★☆ |
5.2 Cross‑Brand Equivalents
| ブランド | モデル | Match | 特徴 |
| Thomas & Betts | LTC02500 | ★★★★★ | Same ABB group, fully compatible |
| Hubbell | HBLT02HD | ★★★★ | UL/CSA certified, 1/2″ HD |
| Legrand | LTC12HD | ★★★★ | IP68, European standard |
| 国内 | FST‑LT02HD | ★★★☆ | Cost‑effective, GB standard |
- メンテナンス & トラブルシューティング
6.1 Maintenance Schedule
| Interval | アイテム | 標準 |
| Every 2 月 | Visual inspection | No cracks, damage, or looseness |
| 四半期ごと | Continuity test | Grounding resistance ≤ 10 Ω |
| Every 6 月 | Leakage test | 0.2 MPa, 5 min, no leakage |
| Every 1.5 年 | Aging evaluation | No jacket cracking, no rust |
6.2 一般的な障害 & ソリューション
| 症状 | 原因 | 優先度 | 解決 |
| Steel core deformation | Over‑bending, crushing | 高い | Replace damaged section, add protection |
| Jacket cracking | High temp, UV, chemicals | 中くらい | Replace, use sun/chemical protection |
| Loose fittings | 振動, insufficient torque | 高い | Retighten, use lock washers |
- まとめ
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
CSA & IP67: Global certification, suitable for wet/washdown areas
Black PVC jacket: Durable, clean, industrial appearance
Recommendations:
Use for large industrial projects: 自動車, 機械, processing lines
Pair with ABB 52/53 series heavy‑duty fittings for best performance
For continuous grounding: use LTGCU02B‑L with bonding wire
