2021-10-09 08:38:36
What's the difference between between BS EN 124 & FACTA? The main difference between these two standards are the calculations of load classifications.
BS EN 124 calculates the dynamic vehicle loading for fast moving traffic, to ensure that it rates all material types against the highest possible installation requirements.
FACTA focuses their calculations on fabricated covers which are normally restricted to use in 20mph speed limit areas (and therefore not subject to the same dynamic loads that cast iron covers are).
Pls see attachment table
This rough parallel is for guidance only and indicative of typical areas of applications for each class, and is not intended to be a like-for-like
comparison of BS EN 124 and FACTA classifications.
BS EN 124 and FACTA classifications cannot be directly compared with each other. As an example, FACTA B class covers are rated suitable for use in car parks (for pneumatic wheel loads), with an ultimate test load of 101kN.
The lowest rating for car park use under BS EN 124 is B125 (with an ultimate test load of 125kN).
For a fabricated cover to pass a BS EN 124 load test it would require additional material which, given the low speed and intensity of traffic in a car park, is deemed unnecessary by FACTA.
What does this mean for choosing a cover? The usefulness of each standard largely depends on the install location of the cover and therefore the required material.
If you're installing a cover in a pedestrian area, where you want it to blend in with flooring, then you’ll probably want a fabricated recessed cover.
For this purpose, a cover with a FACTA rating would be suitable. If, however, you need a cover to be installed in a highly trafficked road (where the speed limit is above 20mph) then you most definitely want a cast/ductile iron cover rated suitable under the BS EN 124 standard.
It's important to recognise that if a BS EN 124 or FACTA cover has already specified that you
do not swap it for a cover of the opposing classification.
The key thing to remember is that there are two classifications of covers, and each have their own uses in applications, and which cover is best for each application.
if you're unsure which standard you need speak to an expert at JDP for project advice.
If in doubt, always go for a higher loading than you think you'll need, as it's far better to over-estimate than under-estimate — ain't nobody got time for digging up and replacing a broken cover!
Find out more about the BS EN 124 standard or more about the FACTA classifications in our other manhole covers articles.
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