Hvsc Plus Downconductor Clearance Holes; Routing - Lightning Protection International Stormaster ESE 15 Installation Manual

HVSC Plus Downconductor Clearance Holes

Before running the HVSC Plus downconductor through any clearance holes, ensure that:
∆
A minimum hole diameter of 60 mm (2 3/8") is used
∆
Enough protection is provided so that the HVSC Plus downconductor is not damaged
during or after installation
∆
A waterproofing sealant or sealing gland should be used if the hole needs to be
weatherproof

Routing

The routing of the HVSC Plus downconductor needs to follow these guidelines:
∆
The route of the HVSC Plus downconductor should be as set out in the original
design. Ensure no structural changes such as new antenna or mast installations, air
conditioning towers or ducting has been installed
∆
DO NOT double the HVSC Plus downconductor back against itself after changes of
direction, i.e. 180°
∆
The HVSC Plus downconductor may be installed internally or externally on the structure
∆
The HVSC Plus downconductor should be installed as close (flush) as possible to the
structure
∆
Minimise the number of bends and use the most direct route to ground
∆
Minimise strain on the HVSC Plus downconductor
∆
Ensure minimum bend radius maintained ›430 mm (20in.)
∆
Parallel routing with other services – Minimum separation = 2 m. See Figure 13 on
page 22
∆
If the HVSC Plus downconductor has to cross other services make sure it crosses at right
angles using a conduit that extends at least 1 m past either side of the existing service
∆
The lower end of the HVSC Plus downconductor must terminate close to the initial injection
point of the lightning earth
∆
Be sure to allow for enough slack in the HVSC Plus at the top end for connection to the
Stormaster ESE terminal and the raising of the mast
∆
If it is necessary to isolate the HVSC Plus downconductor from the structure, run the cable
in an insulating conduit with a minimum wall thickness of 3 mm (1/8 in.). The maximum
length isolated from the structure should be 2.5 m (9 ft). The entire length of the HVSC
Plus downconductor cannot be run in insulated conduit
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