Porcelain Mast Mounted WireHolder
The Porcelain Mast Mounted Wire Holder serves as essential pole line hardware for securing overhead service entrance lines. It combines an adjustable service mast with an insulator porcelain component to provide reliable support. These holders come in standard sizes of 1-1/4″ to 3″ and 3″ to 4″ to accommodate different installation requirements.
The Porcelain Mast Mounted Wire Holder features a robust construction with galvanized heavy-duty steel brackets. It mounts directly onto utility poles or buildings using the included nuts, bolts, and washers. The holder can be installed either independently with wood screws or combined with a service mast for enhanced stability.
Service Entrance Mast Porcelain Reinforced Wire Holders excel in maintaining electrical connections for buildings. They provide a secure attachment point for wedge clamps while preventing energy loss in telephone and electric fence lines. The grey porcelain enamel component sits firmly between U-straps, secured by round head rivets for maximum durability.
Features:
• Hot-dip galvanized coating compliant with ASTM A153 specifications for superior corrosion resistance
• Adjustable mounting bracket accommodates various mast sizes without removing nuts
• Reinforced porcelain construction with approximately 1″ by 15/16″ wire opening
• Pre-assembled design with integrated lag screws for quick installation
• Dual-purpose functionality for both standalone and service mast mounting applications
Porcelain Mast Mounted WireHolder Drawing
Frequently Asked Questions (FAQ)
What sizes of service entrance mast can a porcelain wire holder accommodate?
Most porcelain wire holders are designed to fit service entrance masts ranging from 1-1/4″ to 3″ in diameter. Some larger models can accommodate 3″ to 4″ pipe diameters for heavier duty applications.
How is a porcelain mast wire holder installed?
Installation typically involves a two-bolt clamp system that creates a quick and flexible attachment to the conduit. The holder features a non-conductive porcelain guide that directs wires through a 1″ x 15/16″ wire opening.
What are the safety standards for porcelain wire holders?
These wire holders must meet NRTL approval and comply with UL 514B standards for bonding and grounding requirements. The porcelain component provides essential non-conductive properties for safe wire guidance.
What is the purpose of the galvanized steel reinforcement?
The galvanized steel reinforcement adds structural strength to the porcelain component, ensuring the wire holder can securely support overhead service entrance wires while resisting environmental wear and corrosion.
How should wire holders be mounted to older homes?
Wire holders should be mounted directly into wall studs, not just siding. For older homes with plaster and lath walls, it’s recommended to use multiple mounting points to distribute tension and potentially add blocking in the attic for additional support.
What is the standard wire opening size?
The standard wire opening in porcelain wire holders is approximately 1″ x 15/16″, which is designed to accommodate typical service entrance cable sizes while providing adequate protection and support.