22AWG 6core Multicore Unscreened UK Alarm Cable Signal Cable for Alarm System Alarm Control Cable Unscreened Multicore Control Cable

1. Product Specifications and Core Attributes

Electrical and Mechanical Specifications

• Conductor Configuration: 6 individually insulated Stranded Copper Conductors, each rated at 22AWG (0.32mm² cross-sectional area), bundled within a single PVC outer sheath.
• Current-Carrying Capacity:

• 3A in free air (30°C ambient temperature)

• 2.5A in conduit (reduced heat dissipation)

• 2A in thermal insulation (e.g., within wall cavities), suitable for powering low-voltage devices like motion sensors (12V–24V).

• Voltage Rating: 300V, optimized for low-voltage alarm systems (typically 12V–24V) and compatible with standard security system transformers.
• Temperature Range:

• Continuous operation: -20°C to 70°C, accommodating diverse environments from cold basements to heated living spaces.

• Short-term tolerance: Up to 105°C for 5 seconds (withstands transient current spikes during alarm activation).

• Mechanical Properties:

• Conductor stranding: 7–19 fine strands (0.16mm–0.2mm diameter) per core, enhancing flexibility for tight routing.

• Minimum bend radius: 4× cable diameter (static installation) / 6× (dynamic bending, e.g., during retrofits).

• Overall dimensions: Diameter 6mm–8mm, length options from 10m to 1000m, ensuring suitability for both small and large-scale installations.

• Tensile strength: ≥10kN/m (outer sheath), resisting pulling forces during installation.

• Abrasion resistance: Withstands 10,000 cycles of rubbing against a sandpaper drum (per IEC 60811-2-1), ensuring durability in wall cavities.

• Electrical Performance:

• Conductivity: ≥97% IACS (International Annealed Copper Standard), minimizing signal loss over 100m runs.

• Conductor resistance: ≤84.5Ω/km at 20°C, ensuring stable voltage for low-power devices.

• Insulation resistance: ≥100MΩ at 500V DC, preventing leakage between conductors.

• Dielectric strength: ≥15kV/mm, preventing crosstalk and ensuring signal integrity.

2. Material Composition and Design

Conductors: High-Purity Stranded Copper

• Stranding Benefits: Fine strands (7 for 22AWG) distribute mechanical stress during bending, reducing fatigue in tight spaces like wall cavities or under floorboards. This design outperforms solid conductors, which are prone to breakage during retrofits.

• Corrosion Resistance: Natural copper oxide layer provides basic protection against moisture; optional tin plating (5μm thick) is available for high-humidity environments (e.g., bathrooms, basements).

• Signal Integrity: High purity ensures low resistance, critical for maintaining stable signals in motion detectors and alarm triggers, where even minor voltage drops could cause false alarms or system failures.

Insulation: Flame-Retardant PVC

• Composition: PVC resin blended with:

• Flame retardants (aluminum trihydroxide) to meet BS EN 60332-1-2, resisting vertical flame spread.

• Plasticizers (dioctyl adipate) for flexibility at low temperatures (-20°C), preventing brittleness in cold environments.

• Stabilizers (calcium-zinc compounds) to resist degradation from heat and UV exposure.

• Color Coding: Insulation is color-coded for easy identification during installation:

• Blue, brown, gray, black, green, yellow (standard UK alarm system color scheme), simplifying termination in control panels and sensors.

• Key Properties:

• Chemical Resistance: Resists mild cleaning agents and dust, ensuring longevity in residential and commercial environments.

• Ease of Stripping: PVC insulation is easy to remove with Standard Wire strippers, reducing installation time for electricians.

Outer Sheath: Flexible PVC

• Function: Protects against abrasion, dust, and minor moisture in wall cavities or conduit systems, extending service life.

• Flame Retardancy: Formulated to meet BS EN 60332-1-2, self-extinguishing within 10 seconds of ignition—a critical safety feature in case of fire.

• UV Resistance: Contains minimal UV stabilizers (sufficient for indoor use) but is not recommended for prolonged outdoor exposure (e.g., direct sunlight).

Unscreened Design

• Advantages: Reduces cost, improves flexibility, and minimizes diameter, making it easier to route through narrow spaces (e.g., behind skirting boards or within plaster).

• Limitation: Not suitable for high-EMI areas (e.g., near industrial machinery or high-voltage Power Cables). For such environments, screened variants are available but incur higher costs.

3. Specialized Applications

Residential Security

• Burglar Alarms: Connects door/window contacts, motion sensors (PIR), and glass break detectors to control panels. The 6-core design allows separate conductors for power (12V), alarm triggers, and tamper alerts.

• Smart Home Integration: Links alarm systems to smart hubs, enabling remote monitoring via apps. Stranded Conductors ensure flexibility for routing through walls to smart devices.

• Retrofits: Thin diameter and flexibility simplify installation in older homes, where access to wall cavities is limited.

Commercial Buildings

• Fire Alarm Systems: Connects smoke detectors, heat sensors, and emergency sirens to fire alarm panels in offices, shops, and restaurants. Flame-retardant PVC enhances safety in enclosed spaces.

• Access Control: Links card readers, keypads, and electric locks to control systems, with color-coded conductors simplifying wiring of power and data lines.

• CCTV Integration: Transmits low-voltage power and control signals to security cameras in low-EMI areas (e.g., retail floors).

Institutional Facilities

• Schools and Hospitals: Wiring perimeter detectors, emergency call points, and nurse call systems. The cable’s compliance with UK standards ensures alignment with institutional safety protocols.

• Government Buildings: Connects high-security alarm systems, where reliability is critical. The unscreened design reduces clutter in sensitive areas.

Light Industrial Premises

• Warehouses: Supports alarm zones in low-EMI areas (e.g., storage zones), linking sensors to central control rooms. Strategic routing avoids high-voltage machinery to prevent interference.

• Small Factories: Connects fire and burglar alarms in administrative areas, with flexibility to route around equipment.

4. Manufacturing Process

Conductor Preparation

1. Copper Drawing: 99.99% pure copper rods are drawn into fine wires (0.16mm–0.2mm diameter) using diamond dies, then annealed at 400°C to soften the metal for flexibility.

2. Stranding: Wires are twisted into 22AWG conductors using high-speed stranding machines, with a lay length of 10×–15× wire diameter to balance flexibility and conductivity.

3. Tin Plating (Optional): Conductors are electroplated in a tin sulfate bath, ensuring uniform coverage (5μm) for high-humidity applications.

Insulation Extrusion

1. PVC Compounding: Flame-retardant PVC resin is mixed with plasticizers and stabilizers in a twin-screw extruder to form a molten compound.

2. Extrusion: Conductors are fed through crosshead extruders, where molten PVC is applied at 160°C–180°C to form insulation layers (0.2mm–0.3mm thick).

3. Color Coding: Insulation is colored during extrusion using pigmented PVC compounds (blue, brown, etc.) for easy identification.

Cabling and Sheath Formation

1. Core Assembly: 6 insulated conductors are twisted into a bundle with filler (polypropylene tape) to maintain a round profile.

2. Sheath Extrusion: The bundle is fed through an extruder, where a PVC outer sheath is applied at 170°C–190°C. The sheath is cooled in a water bath and printed with markings (e.g., “22AWG 6-Core BS EN 50288-4-1”).

Quality Testing

• Electrical Tests: Conductor resistance, insulation resistance, and dielectric strength measurements.

• Mechanical Tests: Bend testing (10,000 cycles), tensile strength, and abrasion resistance.

• Flame Tests: Vertical flame spread per BS EN 60332-1-2, ensuring self-extinguishing properties.

5. General Product Information

Packaging

• Reels: Cables are wound onto plastic or wooden reels (30cm–50cm diameter) with flanges to prevent tangling. Reels are labeled with:

• Cable type (22AWG 6-core unscreened).

• Length (10m, 50m, 100m, 500m, 1000m).

• Standards compliance (BS EN 50288-4-1, BS EN 60332-1-2).

• Batch number and manufacturing date.

• Smaller Lengths: 10m–50m coils are packed in cardboard boxes with foam inserts, suitable for small installations or repairs.
• Documentation: Each reel includes a certificate of conformity (CoC) with test results, installation guidelines, and material safety data sheets (MSDS) for PVC components.

Transportation and Handling

• Shipping Modes:

• Road Transport: Primary mode for UK deliveries, using vans or trucks with reel holders.

• Courier Services: For small orders (≤50m), shipped as parcels via Royal Mail or courier networks.

• International Shipping: Available to EU countries, with reels containerized to prevent damage.

• Handling Guidelines:

• Reels should be stored horizontally in a dry, ventilated area (10°C–30°C) to avoid moisture absorption.

• Unused cable must be rewound tightly to prevent kinking, which can damage conductors or insulation.

• Avoid contact with sharp objects or chemicals (e.g., solvents) that could degrade the PVC sheath.

Sample Provision

• Sample Availability: Free 1m samples are available for testing, including a test report with conductivity and insulation resistance data.

• Lead Time: Samples shipped within 2–3 business days to UK addresses.

• Custom Samples: Modified variants (e.g., tin-plated conductors) available upon request, with a small fee and 5–7 day lead time.

Ordering and Delivery

• Minimum Order Quantity (MOQ): 10m for Standard Cables; 100m for custom variants.
• Lead Times:

• Standard orders: 3–5 business days (UK delivery).

• Bulk orders (≥1000m): 7–10 business days.

• International orders: 10–14 business days (EU) or 15–20 business days (rest of world).

• Pricing: UK factory-direct pricing (GBP per meter) varies by length:

• 10m–50m: £0.80–£1.00/m

• 100m–500m: £0.60–£0.80/m

• 1000m+: £0.50–£0.60/m
  Volume discounts apply for orders over 500m.

• Payment Terms: Credit card, bank transfer, or net-30 terms for registered UK security installers.

After-Sales Support

• Warranty: 5-year warranty against manufacturing defects (e.g., insulation breakdown, conductor corrosion under normal use). Excludes damage from improper installation or EMI interference.
• Technical Assistance: A team of security system specialists provides:

• Guidance on conductor pairing (e.g., power vs. signal cores).

• Installation tips for minimizing signal loss in long runs.

• Compatibility checks with UK alarm system brands (e.g., Texecom, Honeywell).

• Returns and Replacements: Defective cables can be returned within 30 days for a full refund or replacement, verified via photos and the CoC.
• Maintenance Recommendations:

• Annual visual inspections for sheath damage in high-traffic areas (e.g., near doors or windows).

• Testing insulation resistance every 5 years to ensure no degradation.

• Avoid routing near high-Voltage Cables (≥240V) to prevent EMI, even in low-interference environments.