CW-QSC Q Span Clamp for Mid-Span Drop Wire Take-Offs

Q Span Clamp for Mid-Span Drop Wire Take-Offs

The CW-QSC attaches to a supporting messenger strand to provide a connection point for compatible drop hardware. This lets you plan a subscriber drop between poles and route the cable around obstacles where the approved network design allows.

For distributors and telecom contractors, matching the clamp to the strand and drop attachment is the first step. Check the complete connection before approving a sample or placing a repeat order.

How Does a Q Span Clamp Work?

The two jaws fit around the messenger strand. Tightening the bolt and nut draws the jaws together to secure the assembly. The pigtail-shaped bolt provides an attachment for a compatible drop wire clamp bail or an approved drop support-wire arrangement.

The strand clamp and drop wire clamp have different roles: the Q span clamp provides the mounting point, while the selected drop clamp retains the compatible drop cable. Check both components as an assembly.

Materials and Construction

• Aluminum jaws: The listed jaw material is 6063-T6 aluminum.
• Steel fasteners: The bolt and nut are listed as Grade 2 steel with hot-dip galvanizing.
• Pigtail bolt: The listed bolt diameter is 1/4 inch.
• Messenger range: 1/4–7/16 inch, approximately 6.35–11.11 mm.

Confirm the nut configuration, dimensions, coating requirements, and assembly drawing when ordering. For purchasing comparisons, specify the materials of the jaws and fasteners separately.

Applications and Compatibility

You can consider this Q span clamp for aerial telephone and telecom drop take-offs, replacement hardware, and subscriber connection projects that use a compatible supporting strand.

The stated diameter range refers to the messenger strand, not the outside diameter of the drop cable. Cable compatibility also depends on the drop clamp or support-wire arrangement connected to the pigtail.

For fiber installations, confirm the complete drop cable attachment method and the cable manufacturer’s limits. Do not clamp an unsupported optical cable directly in the strand jaws.

How to Choose Your Q Span Clamp

1. Confirm strand dimensions. Provide its nominal diameter, construction, and surface condition.
2. Check the drop connection. Compare the bail or support-wire arrangement with the pigtail dimensions.
3. Define the load case. Include the take-off direction, required load performance, and installation conditions.
4. Match the specification. Agree on materials, fastener configuration, finish, and acceptance criteria.
5. Approve a sample. Assess fit and retention using the intended strand and drop attachment.

Browse our drop wire clamps when selecting the associated drop cable fitting.

Installation and Inspection

Follow the approved instructions for your clamp, strand, and drop hardware. The following checklist helps your crew prepare and inspect the connection.

1. Inspect the jaws, bolt, and nut for damage, missing parts, or obstructed threads.
2. Verify strand size and the approved location of the take-off point.
3. Seat the strand in the jaw grooves and orient the attachment as shown in the installation drawing.
4. Tighten the fastener to the specified installation torque. Request the applicable value; do not guess it from bolt size alone.
5. Connect the compatible drop hardware using its approved method and respect the cable’s tension limits.
6. Check jaw seating, attachment alignment, clearances, and any movement under the prescribed inspection procedure.

The allowable load and installation torque are not specified on this page. Confirm them for your ordered configuration and project before field use.

Maintenance for Aerial Installations

Include the clamp in your network inspection schedule. Check for movement on the strand, loose fasteners, deformation, corrosion, and wear at the drop attachment.

Inspect affected assemblies after severe weather or abnormal loading according to your maintenance plan. If you find slippage, review the strand fit, assembly method, loading, and condition of the support before replacing the fitting.

Wholesale Supply and Quality Requirements

When sourcing for distribution or a construction contract, agree on an approved drawing and sample reference. Clear item codes and packing quantities help your warehouse and installers identify the correct model.

You can discuss OEM / ODM requirements, private labeling, carton markings, and packaging with Hbcrownwealth. Technical changes are subject to review before production.

Include your inspection requirements in the inquiry: jaw dimensions, fastener specification, galvanizing requirements, assembly fit, and mechanical acceptance tests. If you need test reports, provide the required method and acceptance limits so we can confirm available documentation and any additional testing.

Frequently Asked Questions

1. Does the strand range describe the drop cable diameter?

No. The 1/4–7/16 inch range describes the supporting messenger strand gripped by the jaws. Select the separate drop attachment to suit your cable.

2. Is a Q span clamp the same as a drop wire clamp?

No. The Q span clamp mounts on the strand and provides an attachment point. A compatible drop wire clamp grips the drop cable and connects to that point.

3. Can I replace an existing clamp based on its appearance?

Use a drawing, specification, or sample to compare it. Check strand fit, attachment dimensions, materials, and required mechanical performance before approving a replacement.

4. Can I request samples before bulk purchasing?

Contact us to discuss sample availability. Include the messenger strand and drop attachment details so you can evaluate the actual connection before approving the order.

5. What determines the MOQ and lead time?

Quantity, stock availability, packaging, customization, and testing requirements affect the quotation and schedule. Send your required delivery date and destination for confirmation.

6. What should I include in a quotation request?

Include CW-QSC, order quantity, strand diameter, attachment requirements, required tests, and packing instructions. Attach your drawing or an approved sample reference when available.

Request Your Q Span Clamp Quotation

Hbcrownwealth is a professional manufacturer and wholesale supplier of power and telecommunications overhead line hardware in China. We support distributors, importers, and contractors with product selection, OEM / ODM customization, and bulk supply. Contact us with your CW-QSC specifications and quantity to request a quotation.

CW-QSC Q Span Clamp Specifications