BS EN 1648-2:2012 pdf download

BS EN 1648-2:2012 pdf download.Leisure accommodation vehicles- 12 V direct current extra low voltage electrical installations Part 2: Motor caravans.
NOTE A power supply with a nornirwt voltage diflerent than DC 12 V is riot allowed,
The supply of the auxiliary battery shall be obtained from the electrical installation of the base vehicle or from one or more of the fo$owing sources:
a) battery charger (see 7.4);
Where the charger is combined with an AC/DC converter (see d) and 4.3.1) fixed within Itie motor caravan, then individual items of current using equipment can also be supplied with electricity directly from this AC/DC converter.
b) generator that is driven by any form of energy (see 4.3):
c) solar energy cells (see 4.3);
d) LV supply via an on-board mounted AC/DC converter (e.g. translomier, switching por supply) that complies with the requirements of the relevant standards in accordance with directive 20061951EC and subsequent amendments,
It shall be ensured that the auxiliary battery will be automatically disconnected from the 12 V power supply of the base vehicle when the engine of the base vehicle is turned off.
If several sources of supply are used it shall be ensured that there is no unfavourable interaction.
4.2 Auxiliary batteries
42.1 General
An auxiliary battery shal only be intended for the electric power supply of the living area.
4.2.2 Typ. of battery
An auxiliary battery stial be of the rechargeable type.
Non-rechargeable batteries are not auxiliary battenes according to 4.2. They may be used however, provided that
they are used in circuits separated from other sources of electrical supply.
4.2.3 Capacity
An auxiliary battery stial have a minimum capacity of at least 60 Ampere-hours (Mi) at 20 h discharge rate. NOTE It is recommended to use a battery designed to be discharged over long periods at a relatively low
current.
4.2.4 Terminals
Auxiliary battery terminals shall be clearly and durably marked ‘+ and —. Connections to auxiliary battery terminals shall be securely clamped or bolted to ensure continuous contact and shall be Insulated unless the auxiliary battery is provided with an insulating cover,
4.2.5 LocatIon
If an auxiliary battery is not installed in the engine compartment, it shall be placed in a compartment according to 42.6. which is designed to protect it from mechanical damage, with easy access for maintenance and/or removal and secured to prevent movement of the battery, e.g. when the motor caravan is in motion.
4.2.6 Auxiliary battery compartment
An acid resistant liquid tight tray shall be installed under an auxiliary battery whose electrolyte is liquid capable of holding at least 20 % of the electrolyte capacty of the recommended battery, when in place.
The interior of an auxiliary battery compartment shall be ventilated and protected against the corrosive effect of acid-laden gases, either by
a) installing a sealed auxiliary battery that incorporates an external ventilating kit that is taken to the exterior of the motor Caravan: or
b) installing an auxiliary battery in an enclosed battery compartment that is protected internally against corrosion and is ventilated directly to the exterior of the motor caravan by means of a suitable tube in accordance with the battery manufacturefs instructions or as supplied by the manufacturer of the auxiliary battery; or
c) ventilating the compartment at both low-level and high-level to the exterior of the motor caravan. The construction of the compartment shall have gas tight joints and seams, including the sides of the ventilator openings, be 01 acid-resistant material or have an anti-corrosive finish. The minimixn size of ventilation shall be not less than 80 mm2 at low leveT and not less than 80 mm2 at high level. If the compartment opens into the interior of the motor caravan, the lid shall provide an air seal.
The requirements concerning the protection against corrosion and ventilation are not applicable If batteries with bound electrolytes are used.
If an auxiliary battery is not provided, then the position and instructions for the installation of the battery and compartment, in accordance with a), b) or C). shall be induded m the User’s Handbook according to Clause 8 and a notice shall be fixed in or near the proposed location stating:
For instructions on auxiliary battery installation, see Users Handbook.
When the manufacturer makes no provision for the installation of an auxiliary battery, the following statement shall be made in the User’s Handbook:
“This motor caravan has not been designed to accommodate an auxiliary battery. Do not fit one.” For underslung battery, a minimum ground clearance shall be observed in compliance with directive 2007/46/EC. Annex II.
4.2.7 Warning notice
A warning notice shall be fixed In a prominent position near the auxiliary battery or displayed on the lid of the auxiliary battery compartmeni This warning shall be in the official language(s) of the country In whidi the motor caravan is to be sold for the rwst time and shall state:
Switch off all appliances and lamps before connecting or disconnecting the auxiliary battery.”