To deter unauthorized access, some clients specify that permanently fixed steps or ladders should not be used. In these situations, authorized access is commonly made by winch or removable ladders.
Whilst this approach may generally be considered acceptable for authorised access, a secondary means of escape is still required and if unauthorized entry occurs, it is possible that individuals may get into greater difficulty and it will be impossible to escape.
Caswick recognises this problem and has developed a specially designed grating (Patent applied for) which can be used with steps or ladders in preference to winch-only access and is fitted below the manhole cover. The grating prevents unauthorized or accidental entry arising, for example if the cover has been displaced during storm surcharge conditions or through theft and can also be locked to prevent unauthorized access.
Contact Caswick for more information.
