W-33 Kellems® Wire Management Products Wiring Device-Kellems ® www.hubbell.com/wiringdevice-kellems/en Select the Correct Support Grip Each Kellems grip is designed to work on a specific range of cable diameters. Step 1 Refer to the Kellems chart below to determine the grip style best suited for your application. Step 2 Determine your cable outside diameter. Step 3 Find the grip size that encompasses your cable diameter. Step 4 Whenever possible, use a closed mesh that assembles over the cable end. If the cable end is not available, use a split mesh. Step 5 Where available, select an eye style that suits your needs. Step 6 Select the proper material—tinned bronze or stainless steel*. Step 7 Estimate the tension to be put on the grip, establish the working load you require and compare this to the listed approximate breaking strength of the grip to insure that the grip will be strong enough. Refer to page W-34 for safety and working load considerations. Kellems® Support Grips Kellems Support Grips are used to hold the weight of electrical cable as it hangs in a vertical, sloping or horizontal position. Electrical cable must be supported, or its dead weight can cause excessive strain or pullout at the connections resulting in power failure. Support grips also absorb additional strain from flexure, vibration, expansion and contraction. Kellems Support Grips listed in this catalog are made of high grade, non-magnetic tin-coated bronze strand. Stainless steel grips, made of alloy 302–304 SST for severe service or unusual environmental conditions, are available on request. Support Grip Selection Chart Grip Styles Application Closed mesh Split lace closing Split rod closing Material* Standard support grips Heavy duty grips Service drop Bus drop Conduit riser Fiber optic cable support grips Standard, permanent support, cable end available. Standard, permanent support, cable end unavailable. Standard, temporary support, cable end unavailable. Tape or band tail end of wire mesh grip after positioning for permanent support. Tin-coated bronze standard or stainless steel by special request. Support vertical runs to 99 ft. loads to 600 lbs. Support vertical runs over 100 ft. loads over 600 lbs. Light duty to support service entrance cable. Light duty support, indoors only, on Bus drop cable. Support cable runs in rigid (Schedule 40) conduit. Support fiber optic cable. Note: *Most catalog listed support grips are made of tin-coated bronze strand. To order stainless steel support grips, change the first three catalog number digits from 022-0X-xxx to 024-0X-xxx. Consult Technical Service for details. Eye Styles Single Double Universal Offset Grips are to be installed and utilized by a qualified technician in accordance with all applicable national and local safety and electrical codes. Consult a licensed project safety professional, if necessary. Ensure that the correct grip is selected for your specific needs. Grips should only be used for their intended purpose and not for other applications. Banding the tail end of the grip is required to prevent unintended release of the grip’s hold from the cable and to achieve maximum gripping strength The strength of a Kellems grips is based on laboratory testing and does not evaluate variable conditions such as cable type, gripping surfaces, cable movement or impact loads. Suitability for the application must be determined by the user. Thoroughly examine the condition of the grip prior to each use. Grips that are worn, bent, corroded, or show other signs of damage, such as frayed or broken wires, should never be used and must be replaced. Do not modify the grip in any way. Ensure that the recommended work load of the grip is suitable for the application. Never use a grip beyond its safe working load, which is the approximate breaking strength divided by the factor of safety. The recommended factor of safety is five (5) for pulling grips and ten (10) for support grips. Pulling hardware should only be attached to the eye of the grip. A swivel is recommended for attachment to the grip’s eye in applications where torque release is necessary. Torque can build up in high tension pulling applications. Do not run grips and swivels around sheaves or bull wheels while under tension. For synthetic rope, use Kellems Dua-Pull Grips only. WARNING: It is very important to read and understand all safety information before proceeding. Failure to use as directed may result in property damage, personal injury or death.
