This listing covers the Blitz Systems BLITZCLIP wire suspension range. The BLITZCLIP Two-way Cable Gripper forms a loop in wire to suspend signs, lighting and other fixtures. Blitz Wire Rope is used with it to suspend catenaries, lighting, highbays, signage, ductwork and cable tray. The BLITZCLIP Duct Hanger is a self-locking, re-adjustable hanger for suspending rectangular duct. The BLITZCLIP Trapeze Hanger places trapeze supports in single or multi-tier installations for cable containment and duct support. The gripper data sheet gives its application as internal and external installations of electrical and data cable containment.
What this listing does
The listing has two selectors and a set of reference tables.
For a gripper and wire, select the wire diameter (1, 2, 3.2, 5 or 6.35 mm, the Blitz Wire Rope reel diameters) and the angle (Vertical, 30 degrees or 60 degrees), and enter the load on the suspension point. For a hanger, select the Duct Hanger or the Trapeze Hanger and the wire diameter (2 or 3.2 mm), and enter the load on the hanger. The listing returns:
- The gripper product code and its wire range as printed, for the gripper whose printed wire range contains the wire diameter.
- The gripper SWL, the SWL factor for the angle, the SWL at the angle, the utilisation and a load check, where a gripper is printed for the wire diameter.
- The wire construction row as printed, the minimum breaking load and the wire SWL at a 5:1 safety factor.
- A table of the reel codes and reel lengths for each wire diameter.
- The hanger product code and its wire range as printed.
- The Trapeze Hanger SWL, the utilisation and a load check. The Duct Hanger SWL is shown as Held.
- The wire SWL beside the hanger value.
- Tables of the cable details and breaking strength and of the gripper materials, as printed.
Safe working loads
All values are as printed on the manufacturer's data sheets and keep the term and unit each sheet prints: SWL (kg), breaking load (kg) and breaking strength (kg).
- Gripper SWL: FCS-BC10 10 kg (wire range 1.0mm), FCS-BC20 56 kg (1.5-2.0mm), FCS-BC32 113 kg (2.4-3.2mm) and FCS-BC50 300 kg (4.0-5.0mm).
- The gripper data sheet states that Blitz Systems is not able to guarantee the Safe Working Load of the BLITZCLIP when Blitz Wire has not been used.
- Safe Working Load During Different Angles, as printed: Vertical 100%, 30 degrees 80%, 60 degrees 60%. The data sheet does not say how the angle is measured and gives no factor for any other angle, so only these three are offered. This is under query with the manufacturer.
- The load entered is compared with the gripper SWL after the angle factor. The wire SWL is shown beside it as printed. It is not reduced for the angle, and no governing value is given.
- Wire rope breaking load (Min.) and SWL at 5:1 safety factor, by wire construction row: 1.00mm (1x7) 50 kg and 10 kg; 2.00mm (7x7) 280 kg and 56 kg; 3.00mm (7x7) 565 kg and 113 kg; 5.00mm (7x7) 1500 kg and 300 kg; 6.00mm (7x19) 1900 kg and 380 kg.
- The wire rope data sheet states that the 5:1 MSWL is tested and approved by TUV Nord Group.
- The reels are printed as 3.20mm and 6.35mm, while the wire construction table prints rows 3.00mm (7x7) and 6.00mm (7x19). The listing uses those rows for the 3.20 mm and 6.35 mm reels and shows the printed row label. This match is not confirmed by the manufacturer.
- No gripper is printed for 6.35 mm wire. The listing shows None printed for that diameter, with no gripper value and no check.
- Trapeze Hanger (FCS-BCTH): SWL at 5:1 safety factor of 50 kg, printed once for the wire range 2.0mm - 3.2mm and shown for both reel diameters in that range. The data sheet is treated as a draft until the manufacturer confirms it.
- Duct Hanger (FCS-BCDH): the data sheet prints the safe working load as a range for the wire range 2.0mm - 3.2mm, without the wire that gives each value. The listing shows it as Held. No value is shown and no load check is made for this product. The data sheet is treated as a draft.
- No angle factor is printed for the hangers and none is applied.
- Only the printed reel diameters, angles and hangers are offered. Values are not interpolated or extrapolated.
Finish
- Gripper: the data sheet lists the housing (printed as Hosing) as special grade Aluminium die cast, the plunger, stopper, pin and lock nut as Brass with Nickel coating, the metal balls as Steel with white Zinc coating and the spring as Stainless Steel. It also states finish in accordance with Hot Dip Galvanised: AS 4680:2006. That statement is published as printed and is under query with the manufacturer, because the housing is die cast aluminium.
- Wire rope: the data sheet states finish in accordance with ASTM A103 standard from Galvanized coated JIS G3506 wire material. The citation is published as printed and is under query with the manufacturer. The gripper data sheet lists the cable material as Galvanized Steel.
- Duct Hanger and Trapeze Hanger: the material is printed as Aluminium. The Trapeze Hanger data sheet gives no finish.
Limits
- No gripper is given for 6.35 mm wire, and no reel is given for 1.5, 2.4 or 4.0 mm wire. Only the reel diameters are offered.
- The angle factor is given for three angles only, and how the angle is measured is not given. The assembly drawing shows a maximum angle of 60 degrees between the two legs of the loop at the gripper and a minimum wire tail of 15cm.
- No safe working load is shown or used for the Duct Hanger, and no load check is made for it.
- No angle factor is given for the wire or for the hangers.
- Values from different data sheets are not combined into a governing value. The wire SWL is shown beside the gripper and hanger values and is not used in either check.
- Fixings, screws, the trapeze, the duct, the supporting structure and the suspended item are not checked.
- Duct Hanger installation as printed: fixed to the bottom corners of the duct with 3 self-drilling screws, with a rubber pad, and at least 100mm of wire left below the hanger. The Trapeze Hanger is fixed in the trapeze slot with an M8 flange nut.
- The weight and dimensions of the grippers and hangers are not given on the data sheets.
- Not covered: seismic restraint, which has its own listing, and the load and span of the cable tray, ladder, mesh or duct.
- Preliminary selection only. Confirm the final design with Blitz Systems.