Caravan pitch supply point
The post or unit on a caravan or camping park that gives a pitch its supply, covered by BS 7671's Section 708. Each socket is to BS EN 60309-2, at least IP44 and not less than 16 A, with its own device and its own 30 mA breaking every live conductor. On a supply the pitches are made part of a , because a broken PEN could put a dangerous voltage on a van's metalwork.
Using Caravan pitch supply point in context
Reviewed
A distinction worth remembering
An RCD's type tells you which kinds of residual current it will reliably respond to. It doesn't tell you how much leakage trips it, which is the mA rating. And it's nothing to do with MCB curves. A Type B RCD and a Type B MCB share a letter and nothing else, because MCB Types B, C and D describe how a breaker responds to overcurrent.
Questions to take further
- How can I revise Caravan pitch supply point beyond the definition?
- Explain what Caravan pitch supply point describes, compare it with a related term and use it in a topic question. State any assumptions and what evidence you would need before applying the idea to real work.
Sources
- Professional Electrician: understanding RCDs and their application (Scolmore) — A maker's article, 23 June 2022, written for Amendment 2. Regulation 531.3.3 on Types AC, A and B, blinding, 6 mA smooth DC on Type A, S types and the 3:1 selectivity ratio.
- Professional Electrician: RCD types for EV charging installations (Hager) — A maker's article, 18 December 2024, written for Amendment 3. Type B or Type A or F with an RDC-DD, the 6 mA threshold and why it was chosen.
- Voltimum: Type A or F RCDs? (Doepke) — A maker's article, 20 December 2018, written for the 18th Edition before its amendments. Mixed-frequency current, the 10 mA smooth DC limit on Type F, and three-phase inverters needing Type B.
- IET: initial verification technical webinar questions — Webinar of 5 April 2022. Whether to code a Type AC RCD on a condition report where electronic equipment is installed takes engineering judgement.
- IET: RCD selection, types and testing — Residual-current waveforms, device selection and the distinction from overcurrent protection.
Where Caravan pitch supply point fits in the learning path
The Special Locations section covers these units:
- Wet locations
- Sites, farms and shows
- Moving and temporary
- Heating, lighting and the outdoors
Curriculum mapping: C&G 2382-26 (BS 7671 Part 7).
See this section in the full curriculum
This section is on the Plus path. Lesson availability depends on content review and your learning path.
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- RCD TypesInstallation
- Earthing & BondingInstallation
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An earthing arrangement in which the supply source is earthed and the installation's exposed-conductive-parts connect to an independent earth electrode. The earth path commonly has too much impedance for overcurrent protection alone to meet the required disconnection time, so RCDs are normally used for fault protection. The electrode and protective devices must be assessed together.
TT system
Read the TT system entryCompare related terms
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TT system
An earthing arrangement in which the supply source is earthed and the installation's exposed-conductive-parts connect to an independent earth electrode. The earth path commonly has too much impedance for overcurrent protection alone to meet the required disconnection time, so RCDs are normally used for fault protection. The electrode and protective devices must be assessed together.
Read the TT system entryRCD — Residual Current Device
A protective device that detects an imbalance between the currents in the live conductors passing through it. In a single-phase circuit this usually means comparing line and neutral current. It disconnects when the residual current meets its operating conditions. A 30 mA RCD can provide additional shock protection, but it does not prevent every kind of electric shock or replace safe isolation.
Read the RCD entryOpen-PEN fault
A break in the PEN conductor of a TN-C-S (PME) supply, out in the distributor's cable. The building's loads then pull its neutral and earth terminal towards the line conductor's voltage, and everything bonded to them follows, while someone outdoors stands on real earth. An RCD won't catch it, which is why BS 7671 sets out specific options for outdoor EV charge points on PME.
Read the Open-PEN fault entryIP rating — Ingress Protection rating
A code describing specified enclosure protection against access to hazardous parts, solid objects and water. The first characteristic digit concerns access and solid objects; the second concerns water under defined test conditions. An X means that characteristic is not specified. An IP code alone does not establish suitability for heat, corrosion, impact or every outdoor environment.
Read the IP rating entrySpecial location
A place or type of installation where the risks are higher or different, so BS 7671's Part 7 adds to or changes its general rules. Bathrooms, swimming pools, construction sites, caravan parks and EV charging all have their own section there. Read that section before designing or testing, because the general parts still apply unless it changes them.
Read the Special location entryA definition is a start. Using it in a real question is where it sticks.