Click here to load reader

LPI Direct Strike Products - Maclean Electrical · PDF file LPI® Upper Termination Kit LPI®‘s Upper Termination Kit is designed for use with the LPI HVSC down-conductor. The LPI

  • View
    1

  • Download
    0

Embed Size (px)

Text of LPI Direct Strike Products - Maclean Electrical · PDF file LPI® Upper Termination Kit...

  • LPI ® Direct Strike Products

    Guardian TM

    System 5

  • 22

    Commercial in Confidence Document: 36 TD Guardian.pub Version: 2.08 29/09/2009 Copyright 2009 LPI 2

    Product Description LPI

    ® offers a family of air terminals and accessories. Our product design is based on the most recent

    advances in lightning research whilst maintaining proven principles associated with the successes of the past. LPI

    ® Guardian System 5 provides a purpose-designed package for direct lightning protection. The

    Guardian System 5 has been tested in compliance to IEC Test Standard: IEC 60-1:1989. 1. A Family of LPI

    ® CAT (Controlled Advanced Triggering) series air terminals.

    2. A Fibreglass Reinforced Plastic (FRP) mast. 3. A purpose-designed High Voltage Shielded Cable (HVSC). 4. A lightning strike recorder (LSR). 5. An earthing system which consists of Earth rods, Clamps, Copper tapes and Ground resistance

    improvement powder (GRIP).

    Key Benefits

     Blunt finial tip which minimizes corona effect.

     4 electrically isolated panels.

     High Voltage connection at the base.

     Triggering procedure allows the initiation of an intercepting streamer.

    CAT Principles 1. A Guardian CAT terminal consists of a grounded blunt lightning rod surrounded by an electrically

    floating medium. Rounded or blunt tips have proven to be more efficient than sharp points by producing minimal corona effect. This has been clearly proven in tests conducted at South Baldy Peak in the Magdalena Mountains of central New Mexico, USA. (Source: “The Measurement of Lightning Rod Responses to Nearby Strikes” by C.B. Moore, G.D. Aulich, and W. Rison/ May 2001)

    2. During the static thunderstorm phase when the electric fields are steady at around 5-15 kV/m and

    even in the very early stages of leader approach, the medium presents as a relatively low field intensification surface due to the blunt configuration of the finial tip. This restricts the production of “corona” or “point discharge” ions and is critical because excessive production of ions (corona) results in a “space charge cloud” above the air terminal which masks the electric field at the tip of the terminal when the leader eventually approaches within range.

    3. The Guardian CAT terminal is comprised of four separate electrically isolated panels arranged to allow

    the section facing the step leader to rise in voltage due to a capacitive coupling effect. Because the CAT terminal is essentially isolated from the ground potential, the electric field increases as the discharge approaches closer to the panel facing the step leader. It then experiences repeated pulsing until this section (panel) rises in voltage to the point when a triggering arc is generated at precisely the right time, which in turn initiates the streamer, which connects with the approaching down leader.

    4. This triggering arc creates two key effects. First it produces a large number of ions which are needed

    to initiate an upward leader. Secondly it causes a large snap change in the electric field immediately above the air terminal which provides the necessary “kick” for the inception of an early, stable, prop- agating upward leader. The initiation of such advanced triggering results in the approaching leader being intercepted earlier, which ensures a larger protective area around the Guardian CAT terminal.

    LPI ®

    Guardian System 5

  • 3

    Commercial in Confidence Document: 36 TD Guardian.pub Version: 2.08 29/09/2009 Copyright 2009 LPI 3

    LPI® Product Range

    SECTION PAGE LPI PRODUCTS

    A 9, 10 LPI ® GUARDIAN

    TM TERMINAL

    B 11 LPI ® UPPER TERMINATION KIT

    C 11 LPI ® FRP SUPPORT MAST

    D 12 LPI ® INLINE COUPLING

    E 12 LPI ® GUY KIT

    F 13 LPI ® GUY RING

    G 13 LPI ® LOWER MAST ASSEMBLY

    H 13 LPI ® SADDLES FOR CANTILEVERING MAST

    I 14 LPI ® U-BOLT

    J 14 LPI ® HIGH VOLTAGE SHIELDED CABLE

    K 14 LPI ® CABLE TIES

    L 15 LPI ® SADDLES AND FIXINGS

    M 15 LPI ® BEAM CLAMP AND CABLE SUPPORT

    N 15 LPI ® LIGHTNING STRIKE RECORDER

    O 16 LPI ® LOWER TERMINATION KIT

    P 16, 17 LPI ® EARTHING SYSTEM

    Q 17 LPI ® INSPECTION PIT

    R 18 LPI ® GROUND RESISTANCE IMPROVEMENT POWDER

    CATCALC Software Design LPI

    ® uses a CAD based software design program “CATCALC” to customize a cost effective and safe

    lightning protection solution for any structure. The “CATCALC” program considers factors such as thunder days per year, height above sea level, level of protection desired/recommended (Standard - High - Very High), Physical dimensions of the structure and building materials used. Competing features (which have the ability to create streamer development) are tak- en into consideration during the design process. A customized “CATCALC” design will provide to the end customer a design report encompassing elevation, plan and side views of the proposed lightning protection installation along with a detailed bill of materials for all required accessories.

    Risk Assessment In accordance with Australian Standard (AS1768) all “CATCALC” designs are subjected to a site risk assessment to determine the perceived risk from a lightning strike. The risk assessment considers the following.

     Usage and contents of the structure(s)

     Construction materials of the structure(s)

     Height of the structure(s)

     Situation at site - Flat ground or elevated above sea level

     Average thunder days per annum

  • 4

    Commercial in Confidence Document: 36 TD Guardian.pub Version: 2.08 29/09/2009 Copyright 2009 LPI 4

    Installation type 1 illustrates a Guardian System 5 installed on a building roof top (flat roof).

    Installation Type 1

    Please refer to page 19 for recommended earthing installation

  • 5

    Commercial in Confidence Document: 36 TD Guardian.pub Version: 2.08 29/09/2009 Copyright 2009 LPI 5

    Installation type 2 illustrates a Guardian system 5 cantilevered to the side wall of a building.

    Installation Type 2

    Please refer to page 19 for recommended earthing installation

  • 6

    Commercial in Confidence Document: 36 TD Guardian.pub Version: 2.08 29/09/2009 Copyright 2009 LPI 6

    Installation Type 3

    Installation type 3 illustrates a Guardian system 5 cantilevered to the top section of a tower.

    Please refer to page 19 for recommended earthing installation

  • 7

    Commercial in Confidence Document: 36 TD Guardian.pub Version: 2.08 29/09/2009 Copyright 2009 LPI 7

    Installation Type 4

    Installation type 4 illustrates a Guardian system 5 installed on a building roof top (flat roof) or at ground level. Note: Multiple guying kits are utilized due to increased mast height.

    Please refer to page 19 for recommended earthing installation

  • 8

    Commercial in Confidence Document: 36 TD Guardian.pub Version: 2.08 29/09/2009 Copyright 2009 LPI 8

    Installation Type 5

    Installation type 5 illustrates typical mounting arrangement for cantilevered GI style CAT Terminal.

    Please refer to page 19 for recommended earthing installation

  • 9

    Commercial in Confidence Document: 36 TD Guardian.pub Version: 2.08 29/09/2009 Copyright 2009 LPI 9

    LPI ® Guardian CAT Terminals (Gold)

    LPI

    ® ’s range of Guardian CAT Terminals are Controlled Advanced Triggering devices which intercept light-

    ning discharges and attaches them to a preferred point. The CAT Terminal has been designed to emit a “streamer” of energy at precisely the right time so that an approaching “leader” is intercepted and brought under control. All Guardian CAT Terminals have been tested in compliance to IEC test standard: IEC 60-1:1989.

    Ordering Code CAT I - G CAT IGI - G

    Description: Guardian CAT Terminal, Gold, Model I

    Sphere Dimensions: 106mm (Diameter), 140mm (Height)

    Panel Material: Anodised Aluminium

    Terminal Colour: Gold

    Weight: 1.65kg

    Operation: Spark Gap

    Insulation Material: UV Rated Evoprene

    Down Conductor Connection: Lug connection GI connector

    Ordering Code CAT II - G CAT IIGI - G

    Description: Guardian CAT Terminal, Gold, Model II

    Sphere Dimensions: 160mm (Diameter), 210mm (Height)

    Panel Material: Anodised Aluminium

    Terminal Colour: Gold

    Weight: 2.35kg

    Operation: Spark Gap

    Insulation Material: UV Rated Evoprene

    Down Conductor Connection: Lug connection GI connector

    Ordering Code CAT III - G CAT IIIGI - G

    Description: Guardian CAT Terminal, Gold, Model III

    Sphere Dimensions: 210mm (Diameter), 280mm (Height)

    Panel Material: Anodised Aluminium

    Terminal Colour: Gold

    Weight: 3.5kg

    Operation: Spark Gap

    Insulation Material: UV Rated Evoprene

    Down Conductor Connection: Lug connection GI connector

    Section A

    Recommended for low to medium risk structures which do not excee

Search related