This bollard is a 'road kill' example, in that it had been involved in a collision with a vehicle, causing it to detach from its base in the impact. The bollard was saved from the skip as I am a bit of a fan of their unusual design - I can remember seeing a television programme in the early 1990s that featured this then-new style of bollard, which was (ironically) supposed to be better at withstanding collisions in comparison to contemporary products, thanks to its unique concertina-shaped base. Unfortunately, this uniqueness had the added disadvantage that it required a non-standard base to be installed, meaning that conventional bollards cannot be attached to a Halo base, and Halo bollards cannot be fitted on standard bases. Although a small number of Halo bollards existed in Derbyshire, especially in the High Peak area, they are in decline, particularly where their bases have been damaged beyond repair, where a modern, reflective bollard might be installed instead these days.
As received, the bollard was filthy from years of traffic grime and impact rubs. Following extensive cleaning using a pressure washer, and then by a more hands-on approach using a sponge and soapy water, the ingrained dirt wore away. The remnants of the reflective band and Haldo label were lost during the cleaning, but this is only a small issue, and in the case of the former, reflective tape will be used to replace the band.
The Halo bears a slight resemblance to the earlier 'Springbak' bollard from Haldo, although, it relies on the springiness of its base, rather than on dedicated steel springs, in order to effect the rebounding process. Another difference is that the Springbak featured an internal lighting spine up its centre, whilst the Halo employed a base-lit system that incorporated three 10 W PL-S type lamps positioned vertically, in order to provide illumination up the bollard.
A lug in the back of the bollard is used to secure it to its base.
A grub screw positioned at this hole would be tightened, which in turn, would cause for an internal stainless steel circular wire to compress around the bollard base, securing the top in position.
At some point, the plastic top section of the bollard has cracked.
The inside of bollard is white, in order to maximise reflectance.
A small section of the internal circular wire is seen here. Originally, this terminated into a welded steel wedge that fitted into the lug; however, as this was damaged (and the grub screw missing), I removed it.
The view looking right up the bollard is reminiscent of the start and end of many Warner Bros. cartoons!
New reflective tape was wrapped around the bollard's neck - it is seen here positioned alongside its plain-aspect Springbak sibling.
The reflective tape is 50 mm in width; a standard size.
Owing to the non-standard design of the base unit, a 440 mm (1 ft 5.32 inches) diameter piece of medium-density fibreboard was placed beneath the bollard shell; this being the same inner diameter of the lowest concentric ring. An E27 lampholder and 7 W LED R63 reflector spotlight lamp were positioned in the centre of the board, and connected up.
Conveniently, the supply cable fitted through the old grub screw hole with ease. In the bollard's latter years when installed on the road, two small holes had been drilled in the lower section of the shell, and the top secured to the base with screws. These holes were re-used, as the same method is used to secure the shell to the board. The use of a reflector lamp with a wide beam angle allowed the vertical yellow tube to be illuminated, along with the head section.
Testing with my energy monitoring device revealed the following results:
|Test Voltage (V)||Current being drawn at full power (A)||Measured wattage (W)||Apparent Power (VA)||Frequency (Hz)||Power Factor||True Power (W)||Difference to rated wattage||Percentage Difference|
Haldo Ecco |
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