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BTTZ - Rigid Mineral Insulated (MI) Cable
The Original Indestructible Standard. BS 6387 CWZ Certified.
BTTZ is the original, time-proven mineral insulated cable, setting the global benchmark for fire survival. It is constructed from solid copper conductors embedded in densely compressed magnesium oxide (MgO) powder, all housed within a seamless copper tube.
Overview
The Original Indestructible Standard. BS 6387 CWZ Certified.
BTTZ is the original, time-proven mineral insulated cable, setting the global benchmark for fire survival. It is constructed from solid copper conductors embedded in densely compressed magnesium oxide (MgO) powder, all housed within a seamless copper tube. This completely inorganic, monolithic structure guarantees circuit integrity for up to 3 hours at 950°C, even when subjected to water spray and mechanical shock. It is the definitive choice for the most critical life safety circuits and extreme environments.
Key Features & Benefits
- Highest Fire Rating: Certified to BS 6387 Categories C, W, Z (flame, water, shock)
- Absolutely Safe: Comprises only copper and mineral. Emits zero smoke, no toxic gases, and is inherently non-combustible.
- Exceptional Lifespan & Durability: The seamless copper sheath provides superior moisture, corrosion, and mechanical resistance. Service life can exceed 50 years.
- High Current Capacity, Compact Size: Excellent thermal conductivity allows for higher ampacity in a significantly smaller diameter compared to plastic cables.
Typical Applications
- Core power circuits for fire pumps, emergency generators, and life safety systems in high-rises, tunnels, and airports.
- Critical installations in nuclear facilities, petrochemical plants, and power stations.
Construction
Conductor: Solid annealed copper wire.
Insulation: Highly compressed magnesium oxide (MgO) powder.
Sheath: Seamless copper tube.
Optional: PVC or LSZH outer coating for identification/corrosion protection
Technical Data
- Standards: BS 6387, IEC 60702-1, IEC 60331.
- Voltage Rating: 500V, 750V, 1000V.
- Operating Temp: Up to 250°C.
- Fire Resistance: Up to 3 hours.
- Bending Radius: Requires specialized bending tools (typically ≥ 6D, but depends on size).
Product Equipment
Our company operates over 30 automated production lines and 3 automatic copper/aluminum wire drawing machines, enabling 24-hour non-stop production.
Raw Materials
By securing top-tier raw materials for our insulation and jacketing compounds, we empower our customers with **exceptional performance at an unbeatable value.
Inspection Equipment
Adhering to strict scientific protocols, we have established a comprehensive quality inspection regime. This system meticulously governs all aspects of manufacturing—from the initial inspection of raw materials to real-time monitoring of production processes and final product certification—ensuring unparalleled quality and reliability.
Packing & Delivery
1. Certified & Secure:IPPC-certified packaging with reinforced strapping to protect against damage. 2.Customized Solutions:Tailored packaging designs to fit various cable specifications and container sizes. 3.Global Logistics:Efficient worldwide shipping with full tracking for timely and reliable delivery.
Product
Equipment
Raw
Materials
Inspection
Equipment
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Why Choose Us
Customized Product
Our factory can customize the performance of products according to customer s requirements As long as you provide samples, we will test the samples and produce the same products according to the test values
Quality Assurance
30 automatic production lines,10+ Years Expertise | Million-Dollar Orders | 10-Day Turnaround 24 hours nons-top production,improve our delivery capacity.
Model Specification
We offer a full lineup of power cables, control cables, aerial cables, aluminum alloy cables, rubber-sheathed cables, mineral-insulated fire-resistant cables, and more — covering voltages up to and including 35KV. One-stop solution to meet all your needs.
Stable Delivery Date
Your Reliable Partner for On-Time, High-Quality Cable Supply<br/> With a lab of 50+ precision testing instruments, we leave no room for error: every batch of copper, aluminum, and accessory is scrutinized from arrival to shipment. This end-to-end quality control ensures each meter of cable is flawless, so your projects stay on schedule.
Customized Product
Quality Assurance
Model Specification
Stable Delivery Date
FAQ
How long is your delivery time?
About 7-15 days.
Do you offer customized services with special specifications?
We can make customized products according to your requirements.And the packaging and shipping also can be optional.
If we encounter quality problems, what can you do for us?
We do not allow unqualified products to leave the factory. We have a standard quality inspection.ifit is confimedthat it is a problem with our product,we will deal with it in time.
How many can you produce per month and what is your MOQ?
We have a monthly production capacity of USD 20 million and no fixed MOQ—we welcome orders of any size, provided they meet the basic volume required to start production.
Are you trading company or manufacturer?
We are a direct manufacturer with our own factory and production lines. Unlike trading companies, we control every step from raw material sourcing to final product delivery, ensuring better quality and more competitive pricing for you
How long will we receive the samples?
If the product with the specifications and sizes you need is in stock, we will send it to you as soon as possible. If it is out of stock, we will prepare it within 2-3 days and then ship it to your company as soon as possible.
Do you provide samples? ls it free or extra?
Yes, we provide samples! For standard products, samples are usually free (you only cover shipping); for customized samples, there may be a small fee (refundable upon bulk order). Please share your specs, and we’ll confirm the details.
Feedback
You can contact us by filling in the following information, and our official service advisor will contact you within 12 hours. Please keep your phone open.
