Palisade fence - barbed tape concertina for high security

1. Intermediate Security Palisade Fence (ISPF) Class-3 palisade fence as per following specifications. The fence shall be augmented with V shaped angle iron.
   1. palisade fence shall be installed up to a height of 3m based on BS 1722: Part 12/Equivalent, Security Pattern Type SP30 with capacitance sensor topping giving an overall height of 4000mm
   2. 75 × 22 × 3mm pales at 155mm centres with top cut to 45 degrees.
   3. 2 Nos. 65 × 60mm rails fixed to rear of vertical pales with 8mm diameter bolts.
   4. 127 ×76 universal steel posts at 2.75mm centres.
2. Class 4 High Security Palisade fence
   1. The high security palisade fence shall be installed up to a height of 3.6m based on BS 1722 Part 12/Equivalent security pattern Type SP36 (material specification and installation). With a layer of welded mesh or expanded metal mesh fixed between the pales and rails, and then barbed concertina topping giving an overall height of 4.5m.
   2. Pales 75 × 22 × 3mm at 155mm centres with top cut to 45 degrees. 2 Nos. 65 × 60mm rails fixed to rear of vertical pales with 8mm diameter bolts.
   3. Mesh level installed above ground level.
   4. Length of fence is 5m. 127 × 76mm universal steel posts @ 2.75m centres.
   5. 980mm barbed tape concertina with 7 clips per spiral and short blades at 25mm centres.
   6. The density of BTC when deployed shall not exceed 200mm between adjacent centres. The coil shall be wired to line wire at each point of contact.
3. Wire toppings (3-4 line wires at each side having coiled razor wire in the middle) and a fence mounted analyser to detect attack on the fence.