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AESIF News - Spring & Summer ' issue'

Spring & Summer ' issue' - 02 March 2010

Electric Gate Installers are you looking to join in AESIF Membership. By supporting AesiF you are actively helping, by forcing out poor installations, the cowboys, and improving standards. Spring Open & shut out soon. see information on gate fabrication / bar spacing.

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A.      Safety it’s important Automatic / gates & doors

Cl We remind you of our Health and Safety letter as sent out in May 2006. BS EN: 12453 2000 BS EN: 12445 2001

Common Sense

What should we do in preparation for installing a pair of decorative metal automated drive gates to large piers!

The gaps between the hanging point of the gate and the pier should  not be grater than 10 cm, this is to stop limbs from being trapped.

Example:  a 2 ft / 60 cm square pier in width, with between hanging gates leafs fixed at the centre point of the brick /stone pier =1 ft 30 cm from the edge to centre, it is important to make sure that all the bar spacing in the metal leaf at the hinged point, and in close proximity to the pier are no greater than 10 cm centre distances apart. Or that this area is meshed, or that an area behind the gate leaf to the pier has a minimum clearance of 20 cm ‘when the gate leaf is fully open position on decretive shaped brick / stone piers. BS EN 12604:2000 : 5.1.2.

If bar spacing is not reduced to help prevent entrapment injury, or the area behind the leaf is less than 20 cm, then a safety edge or other devises will be required to prevent entrapment behind the leaf to the pier. You should also consider the use of automation with built in anti crush features. See BS EN 12453: 2000 : 5.1.1.2

Why do we need to consider these points!

This is to avoid the risk of children riding on the gate and placing there head or limbs through the bars whilst in the opening cycle of the gate and becoming trapped between the gate and the pier. Whilst on this subject it is important to stress the need for two pairs of safety beams for automatic closure of gate / doors!. 'One pair external and one pair internal'

Safety Beams

One pair of beams are required at a distance off 5 cm from the closing edge of the gate leaf in the fully closed position with a height of 50 cm and fixed to the outside edge of the gate pier facing each other, and a second internal pair of safety beams are required on the inside of the gate way, set @10 cm from the open edge of the gate leaf and fixed at a height of 50 cm. 'these devices may be post or wall mounted'. For entrance ways with the use of heavy goods vehicles you will require additional safety @ 100 cm in height fixed above the lower pair of safety beams on the outside of the gate way to help prevent accidents with pedestrians and HGV Tractor & long Trailer Units.

Safety beams should cover the open area of the entrapment zone.

Clearance gaps

Clearance gaps behind the gate leaf of less than 50 cm should be protected by the uses of additional safety features, should the opening pressure in this area exceed 400N under test. A safety rib or beam would be a suitable choice for this purpose.

If you are fitting gates to inclined driveways at a property, were gate leafs reduce in clearance on opening and closing, to the causeway. The use of ( PSPE ) "Pressure Sensitive Protective Equipment" should be fixed to the bottom edge of the gate, this is required to prevent entrapment between the gate and the causeway. The function of this devise is to cause the gate to carry out an Emergence Stop and the maximum operational trigger time is 0.86ms The gate must not be able to carry out further operations until the obstruction is cleared.

Remember your duty Health & Safety!

Installers must make the end user aware of the dangers attached to this type of installation, especially if children frequently use the gate /door ways.

Finally if you fail to comply with the Machinery Directives and the Health & Safety at Work Act 1974 'you can now be prosecuted by the Health & Safety Executive so be warned'.

It is important to check out British Standards guild lines, to acquaint one self  fully in compliance with the Directives, has each gate way will differ with regards to 'Safety Requirements and Design'.

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