RR Kabel 50mm² Single-Core Earth Wire — Green/Yellow PVC

RR Single Core Earth Wire 50mm²

The RR Single Core Earth Wire 50mm² is a very large-section Yellow/Green earth conductor for main incoming earthing, high-capacity bonding bars, and major industrial earthing systems in UAE large-scale commercial and industrial projects. Its 50mm² cross-section provides exceptional fault current capacity for the most demanding earthing applications. Sold per metre.

Key Features

• 50mm² conductor for main incoming earth and major bonding applications
• Yellow/Green insulation for compliant earth identification
• Exceptional fault current capacity for large industrial earthing systems
• PVC insulation for cable tray and large trunking installations
• Sold per metre for precise large-project quantities

Technical Specifications

Applications

• Main incoming earth at large MDB and switchgear
• Major industrial earthing grid and bonding bar connections
• Data centre and critical infrastructure main earth conductors
• Large transformer and generator earthing connections

FAQ

• Why is this wire green/yellow, and does the colour-coding actually matter?
  Green/yellow dual-colour insulation is the internationally recognised marking (IEC 60446, carried through into BS 7671 and UAE wiring regulations) reserved exclusively for protective earth (PE) and bonding conductors — no other core in an installation is permitted to use this colour combination. That matters beyond labelling: fast, unambiguous identification during installation, inspection, and fault-finding prevents an earth conductor being confused with a live or neutral core, which is one of the most common causes of a miswired protective connection. The bonding function itself depends on it — every exposed metal enclosure, gland, and extraneous conductive part (structural steel, pipework) must be traced back to the main earthing terminal to form a continuous, low-impedance path, so that under a fault an RCD or circuit breaker trips fast enough to clear the touch-voltage hazard. A conductor that is hard to identify is one that is easy to omit, damage, or disconnect during future works — the colour is what keeps that path intact and verifiable at every stage.
• What does the 50mm² rating mean, and how do I size the earth conductor for my circuit?
  The 50mm² figure is the copper conductor's cross-sectional area, which determines how much fault current it can carry momentarily without overheating before the protective device (fuse, MCB, or RCD) clears the fault. As a general principle under IEC 60364-5-54 / BS 7671 Table 54.7 — the basis for UAE wiring regulations — the protective/earth conductor is sized relative to the associated line conductor: matching cross-section up to 16mm² of line conductor, then roughly half (minimum 16mm²) for larger line conductors. In this catalogue, this 50mm² size is typically specified for main incoming earth at large switchgear/MDB installations and major industrial earthing grids. Always confirm the exact size against your specific circuit design, fault-current calculation, and local wiring regulations — a qualified electrical engineer or electrician should verify the value for your project.
• Can I order an exact length, and how is the price calculated?
  Yes — this earth wire is sold per metre, so you can order any length to match your run (for example 37m or 158m). The listed price is per metre; enter the quantity in metres you need and we cut and supply that exact length. For large or full-reel quantities, contact us for coil pricing.
• What's the difference between this Earth Wire and RR Kabel's Single-Core Building Wire (line/neutral) range?
  Both share the same underlying construction — single-core, stranded plain annealed copper, PVC insulated, rated 450/750V to the H07V-R design (BS EN 50525-2-31, the harmonised successor to BS 6004). The difference is purely the insulation colour and its designated function: the Building Wire range (single colours — red, blue, black, yellow) carries line and neutral conductors, while this Green/Yellow product is manufactured and colour-coded exclusively as the protective earth/bonding conductor. The two should never be substituted for one another on site.
• Does this need to be installed by a licensed electrician?
  Yes. Earthing and bonding conductors are safety-critical fixed wiring — correct sizing, termination, and continuity testing must be carried out by a licensed electrician in accordance with UAE wiring regulations (based on BS 7671/IEC 60364), including verification of earth continuity and loop impedance before the installation is energised.