Confirm the construction fits the job

XF-DH-77 is rubber tape, not foam tape. That distinction matters when your specification calls for a particular material construction, thickness behavior or wrapping method. The tape has a smooth texture and can form a complete, non-fold package around the protected area.

Choose this format when the work concerns power cables, communication cables, adjacent cable accessories or another area requiring the product's fire-protection function. It suits high- and low-power supply lines in power plants, substations, subways, cable tunnels, communication facilities, metallurgy and chemical sites, and large public places.

Match the protection function to the cable location

XF-DH-77 provides fault arc protection for adjacent cables and accessories and forms a firewall barrier between flame and cable. It is self-extinguishing and flame resistant. Waterproof, acid-resistant, stain-resistant, salt-resistant and UV-resistant properties support projects where cable routes may encounter moisture, chemical exposure, contamination, salt or outdoor light.

Picture a cable tunnel with several lines passing close to one another. The tape is applied to the fire-protection area to create a barrier around the cable. The same selection logic applies near accessories that require protection from a fault arc. Before ordering, define which cable section or accessory will be wrapped and what barrier arrangement the project requires.

Set the roll size around the wrapping plan

The standard size is 50 mm wide, 6 m long and 0.76 mm thick. Width affects coverage across the protected area. Length affects the number of rolls needed for the planned cable sections. Thickness helps you check the finished wrapped profile where grouped cables pass near a tray, support or enclosure.

The wrapping method uses proper stretching and a 1/2 semi-cover form. The lap length must meet the design department's requirement. At the end of wrapping, the fireproof wrapping belt is stretched vigorously and double wrapped with glass fiber. This means the order should be based on the cable layout and wrap design, not on the nominal roll length alone.

Other sizes and cores are available. If the route has restricted clearance, unusual cable spacing or a specified roll format, include the required width, length, thickness and core arrangement in the inquiry. Measure the protected section and account for the specified lap before calculating quantity.

Screen the physical and electrical values

XF-DH-77 has a thickness of 0.76 mm, tensile strength of 40 lbs/inch and elongation at break of 300%. Its flame resistance is PASS, and its oxygen index is 30.2%. The dielectric strength is 15 kV/mm, and volume resistivity is 4.4 × 10⁴ ohm-cm. These values give you a first screen for the physical and electrical conditions in the cable protection design.

The values are average test results and are not specification limits for every order. We recommend that you make your own tests to determine suitability for the intended use. Include the cable type, location, wrap design and required electrical or environmental conditions when requesting a technical review.

Check these details before selecting the tape

The product fits a cable fire-protection purchase when the specified material can be rubber tape, the application involves power or communication cables, and the installation uses a stretched semi-cover wrap. It is also a practical match when the project needs a barrier between flame and cable together with fault arc protection for adjacent cables or accessories.

A foam construction may be required by a separate project specification. In that case, compare the required construction with XF-DH-77 before placing an order. For projects that call for this rubber tape format, check whether the 50 mm width, 6 m length and 0.76 mm thickness work with the available clearance and the design-specified lap.

Prepare the cable schedule for a quote

Select XF-DH-77 for power or communication cable protection when its rubber construction, protection function and standard dimensions match the installation design. We can review the order around the cable type, protected section, cable grouping, required lap length, requested roll dimensions, core preference and quantity. Send those details together so the material and wrapping plan can be assessed as one package.